JP4184464B2 - Optical wiring board, optoelectronic wiring board, optoelectronic integrated device, and optical module - Google Patents

Description

【００６５】
となる。ここで、ａはクラッドの半径（＝光ファイバの半径）である。
【００６６】
従って、第１の光ファイバＯｆ１内のスポットサイズをω_A 、第２の光ファイバＯｆ２内のスポットサイズをω_B とすると、両者の比ω_A ／ω_B は、式(1) より、
【００６７】
【数２】

【００６８】
となる。ここで、光ビームの波長をλとすると、パラメータαは、α＝πω_A ² ／λａであり、等価的に光ビームのスポットの大きさを表している。
【００６９】
また、結合効率ηは、
【００７０】
【数３】

【００７１】
と表される。
【００７２】
ここで、クラッドの屈折率ｎ_c をパラメータとして、結合効率ηとパラメータαとの関係を示すと、図６のようになる。図６において、パラメータαが２となる付近で結合効率ηが最も高く、１となり、パラメータαがさらに大きくなるにつれて、結合効率ηが下がっていくことが分かる。
【００７３】
次に、結合効率η＝１となる条件を求めると、式(2),(3) より、
【００７４】
【数４】

【００７５】
となる。
【００７６】
この式(4) におけるパラメータαとクラッドの屈折率ｎ_c との関係を示すと図７のようになる。
【００７７】
従って、図６及び図７より、パラメータα及びクラッドの屈折率ｎ_c を適宜選択することにより、結合効率ηを１とすることができることが分かる。また、この結合効率ηが１となる条件は、式(4) より、コア１の等価屈折率ｎ_e ，クラッド２の屈折率ｎ_c ，及びパラメータαにより定まり、またパラメータαは、光ファイバのスポットサイズω，クラッドの半径ａ，及び光ビームの波長λにより定まる。また、上記では、光導波路の周囲の媒質が空気であると仮定して解析しているが、光導波路の周囲の媒質が空気以外の物質である場合には、その媒質の屈折率に応じて、上記解析結果を補正すればよい。従って、結合効率ηが１となる条件は、入射せしめる光ビームの波長λと、光ファイバの構造が定まれば一義的に定まることとなる。
【００７８】
次に、第１の光ファイバＯｆ１と第２の光ファイバＯｆ２とが離れている場合を説明する。第１の光ファイバＯｆ１と第２の光ファイバＯｆ２との間隔（以下、光ファイバ間隔と記載する）をｄ、クラッド半径ａに対する光ファイバ間隔ｄの比（以下、クラッド半径に対する比で表した光ファイバ間隔と記載する）ｄ／ａをＤとし、上記と同様に結合効率ηが１となる条件を求めると、
【００７９】
【数５】

【００８０】
となる。従って、式(5) を満たすようにすることにより、第１の光ファイバＯｆ１と第２の光ファイバＯｆ２とが離れていても、結合効率ηを１とすることができることが分かる。
【００８１】
また、式(5) より、クラッド半径に対する比で表した光ファイバ間隔Ｄに関しては、以下の条件が満足されなければならない。
【００８２】
【数６】

【００８３】
この式(5) におけるパラメータαとクラッド半径に対する比で表した光ファイバ間隔Ｄとの関係を、クラッドの屈折率ｎ_c をパラメータとして示すと図８のようになる。図８において、任意の屈折率ｎ_c に対し、クラッド半径に対する比で表した光ファイバ間隔Ｄが小さい領域では、結合効率ηが１となるパラメータαが存在するが、クラッド半径に対する比で表した光ファイバ間隔Ｄがある値以上となると、その領域では、結合効率ηが１となるパラメータαが存在しない。従って、第１の光ファイバＯｆ１と第２の光ファイバＯｆ２とが一定以上離れると、結合効率ηを１とすることができないことが分かる。
【００８４】
従って、この光ファイバ間を双方の側面のレンズ作用を利用して光結合した光導波路では、光ファイバ間隔ｄは、式(5) を満たすように設定され、この設定は、入射せしめる光ビームの波長に応じて、第１の光ファイバＯｆ１内のスポットサイズω_A ，第２の光ファイバＯｆ２内のスポットサイズω_B ，クラッドの半径ａ，及びクラッドの屈折率ｎ_c を適宜選択することにより、該光ファイバ間隔ｄが所望の値となるように行われる。また、第１，第２の光ファイバ内のスポットサイズω_A ，ω_B は、コア１のドーパント等の熱拡散技術等を用いると比較的容易に変化させることができる。
【００８５】
次に、図４，図５において、以上のように構成された光導波路では、第１の光ファイバＯｆ１の他端に所定の波長λの光ビームを入射せしめると、入射した光ビームは、第１の光ファイバＯｆ１の中心部を中心軸Ａｘ１に沿ってスポットサイズω_A で伝搬し、第１の光ファイバＯｆ１の傾斜端面Ｆ１の中心点Ｃｐ１で該傾斜端面Ｆ１の中心軸Ａｘ４に対し４５°の角度で反射し、第１の光ファイバ／第２の光ファイバ直交軸Ａｘ３に沿って第１の光ファイバＯｆ１の側面，及び第２の光ファイバＯｆ２の側面を通過し、第２の光ファイバＯｆ２の傾斜端面Ｆ２で該傾斜端面Ｆ２の中心軸Ａｘ５に対し４５°の角度で反射し、第２の光ファイバＯｆ２の中心部を中心軸Ａｘ２に沿ってスポットサイズω_B で伝搬し、該第２の光ファイバＯｆ２の他端から出射される。
【００８６】
この際に、第１の光ファイバの傾斜端面Ｆ１の中心Ｃｐ１で反射された光ビームは、該第１の光ファイバＯｆ１の半径方向には光の閉じ込め構造が存在しないため径が拡がり、この径の拡がった光ビームは、互いに９０°捩じれた位置関係にある第１，第２の光ファイバＯｆ１，Ｏｆ２の側面のレンズ作用により、該光ビームの横断面方向において均等な収束効果を受ける。ここで、上記解析モデルによる解析により求めた光ファイバ間隔ｄは、第１の光ファイバの傾斜端面Ｆ１の中心Ｃｐ１で反射されて径が拡がった光ビームが上記収束効果を受けて、第２の光ファイバＯｆ２内を伝搬する際のスポットサイズω_B と同じ径を有するものとなる位置に、該第２の光ファイバの傾斜端面Ｆ２の中心Ｃｐ２が位置するような間隔であるので、上記収束効果を受けた光ビームは、第２の光ファイバの傾斜端面Ｆ２の中心Ｃｐ２にて、該第２の光ファイバＯｆ２内のスポットサイズω_B と同じ径を有するものとなり、該第２の光ファイバの傾斜端面Ｆ２で反射された光ビームの全部が該第２の光ファイバＯｆ２のコア１に入射する。従って、両光ファイバＯｆ１，Ｏｆ２間の結合効率ηが１となる。
【００８７】
また、第２の光ファイバＯｆ２の他端に所定の波長λの光ビームを入射せしめると、入射した光ビームは、上記と全く逆の経路を辿り、上記と同様にして結合効率１でもって第２の光ファイバＯｆ２から第１の光ファイバＯｆ１に伝搬し、該第１の光ファイバＯｆ１の他端から出射される。
【００８８】
なお、上記の説明では、第１，第２の光ファイバＯｆ１，Ｏｆ２と第１の光ファバ／第２の光ファイバ直交軸Ａｘ３との交差角、第１の光ファイバＯｆ１と第２の光ファイバＯｆ２との交差角、各光ファイバの傾斜端面Ｆ１，Ｆ２の傾斜角、及び光ファイバ間隔ｄが理想値であるものとしているが、図６のグラフから推測されるように、これら各角度，及び光ファイバ間隔ｄが理想値から若干ずれたとしても、光ファイバ間の結合効率は急激に低下するものではない。従って、これら各角度，及び光ファイバ間隔ｄは、理想値に近い範囲内で、必要とされる結合効率に応じた値に設定することができる。
【００８９】
また、光導波部材として、コア１とクラッド２とからなる光ファイバを用いているが、その半径方向に徐々に小さくなるように屈折率を変化せしめてなるロッドレンズを用いてもよい。
【００９０】
以上のように、光ファイバ間を双方の側面のレンズ作用を利用して光結合すれば、高効率な光接続が可能となり、また、上記説明した基本的な光接続構造では光配線をＬ字状に引き回すことが可能となる。
【００９１】
そして、この光接続構造は種々の応用が可能であり、以下に、その応用例を、図９，図１０を用いて説明する。
図９は光配線をＵ字状に引き回すことが可能な光導波路の構成を示す図であり、図９(a) は斜視図、図９(b) は図９(a) のＡ矢示図、図９(c) は図９(a) のＢ矢示図である。図において、図４と同一符号は同一又は相当する部分を示し、本光導波路は、図４の第１，第２の光ファイバＯｆ１，Ｏｆ２とロッドレンズ１００とで構成される。ロッドレンズ１００は、横断面が円形で中心軸Ａｘ６方向に径が一定な線形状を有しており、例えば、第１，第２の光ファイバＯｆ１，Ｏｆ２と同じ径を有し、同じ材料で構成される。また、ロッドレンズ１００の屈折率は、例えば、第１，第２の光ファイバＯｆ１，Ｏｆ２のクラッドの屈折率と同じとされる。また、ロッドレンズ１００として、第１，第２の光ファイバＯｆ１，Ｏｆ２と同じ構造の光ファイバを用いても構わない。
【００９２】
本光導波路は、第１の光ファイバＯｆ１とロッドレンズ１００との位置関係、及びロッドレンズ１００と第２の光ファイバＯｆ２との位置関係が図４の第１の光ファイバＯｆ１と第２の光ファイバＯｆ２との位置関係と同じになる。従って、第１の光ファイバＯｆ１とロッドレンズ１００との間隔、及びロッドレンズ１００と第２の光ファイバＯｆ２との間隔を、図４の光ファイバ間隔ｄと同様に設定することにより、第１の光ファイバＯｆ１とロッドレンズ１００との間、及びロッドレンズ１００と第２の光ファイバＯｆ２との間にて、光ビームを結合効率１でもって伝搬せしめることができる。従って、光配線をＵ字状に引き回すことができる。
【００９３】
図１０は光ビームを合分波可能な光導波路の構成を示す図であり、図１０(a) は斜視図、図１０(b) は図１０(a) のＡ矢示図、図１０(c) は図１０(a) のＢ矢示図である。図において、図４と同一符号は同一又は相当する部分を示し、本光導波路は、第１，第２の光ファイバＯｆ１，Ｏｆ２に加えて、該第１，第２の光ファイバＯｆ１，Ｏｆ２と同一の構造を有し、かつその一端に中心軸Ａｘ７に対し４５°傾斜した傾斜端面Ｆ３を有する第３の光ファイバＯｆ３をさらに有し、該第３の光ファイバＯｆ３を、該第３の光ファイバＯｆ３の中心軸Ａｘ７が、第１の光ファイバの中心軸Ａｘ１に一致し、かつ第３の光ファイバの傾斜端面Ｆ３が、第１の光ファイバの傾斜端面Ｆ１に対し略平行でかつ所定の間隔Ｓを有するよう配置してなる点が、図４の導波路と異なるものである。また、Ｐ１〜Ｐ３は、第１〜第３の光ファイバＯｆ１〜Ｏｆ３の他端である第１〜第３のポートを示している。
このように構成された光導波路では、光ビームを第１のポートＰ１から入射せしめると、入射した光ビームは、傾斜端面Ｆ１及び傾斜端面Ｆ３の間隔Ｓに応じた割合で、一部が傾斜端面Ｆ１及び傾斜端面Ｆ３を通過して第３の光ファイバＯｆ３に入射し、第３のポートＰ３から出射され、他は傾斜端面Ｆ１で反射して第２の光ファイバＯｆ２を通り、第２のポートＰ２から出射される。その結果、光分波器として機能する。
【００９４】
一方、第２のポートＰ２，及び第３のポートＰ３から光ビームをそれぞれ入射せしめると、入射した２つの光ビームは第１の光ファイバの傾斜端面Ｆ１で合波されて第１の光ファイバに入射し、第１のポートＰ１から出射される。その結果光合波器として機能する。
従って、本導波路は光合分波器として機能するとともに、光配線をＴ字状に引き回すことができる。
【００９５】
また、第１の光ファイバの傾斜端面Ｆ１と第２の光ファイバの傾斜端面Ｆ２との隙間に波長選択フィルタを介挿することにより、第１の光ファイバＯｆ１に入射せしめた光ビームを波長分割することが可能となる。
【００９６】
次に、図３に戻り、本実施の形態１による光モジュールでは、第１，第２の部品延設領域Ｒ１，Ｒ２にそれぞれ配置された光ファイバＯｆが、図４の第１，第２の光ファバＯｆ１，Ｏｆ２にそれぞれ相当する。また、図９，図１０の第１〜第３の光ファバＯｆ１〜Ｏｆ３，及びロッドレンズ１００に代えて、光ファイバＯｆが図９，図１０に示す位置関係を形成するよう、該光ファイバＯｆを第１，第２の部品延設領域Ｒ１，Ｒ２に配置することにより、図９，図１０に示す導波路を構築することができる。さらに、光ファイバ間を双方の側面のレンズ作用を利用して光結合した光接続構造の他の応用例についても、同様に、光ファイバＯｆを第１，第２の部品延設領域Ｒ１，Ｒ２に配置することにより構築することが可能である。
【００９７】
次に、以上のように構成された光モジュールの構築方法を図３を用いて説明する。
図３において、本光モジュールを構築するには、まず、４本の光ファイバＯｆについて、その一端に所定の傾斜端面Ｆを形成するとともに、これらを図示するような所定の長さに切断する。また、４本の積層部材Ｓｔを図示するような所定の長さに切断する。
【００９８】
次いで、光学台４００の後側の第１の部品延設領域Ｒ１ａに所定の２本の光ファイバＯｆ及び１本の積層部材Ｓｔを、前側の第１の部品延設領域Ｒ１ｂに３本の積層部材Ｓｔをそれぞれ配置する。この際、全ての光ファイバＯｆ及び積層部材Ｓｔの左端に案内板（図示せず）を当てる等して、それらの長手方向の位置を所定の位置となるように合わせる。２本の光ファイバＯｆは、さらに、傾斜端面Ｆが下方を向くように周方向の角度を合わせる。
【００９９】
次いで、光学台４００の右側の第２の部品延設領域Ｒ２に、先に配置された光ファイバＯｆ及び積層部材Ｓｔに積層するようにして、所定の２本の光ファイバＯｆを配置する。この際、２本の光ファイバＯｆの下端に案内板（図示せず）を当てる等して、それらの長手方向の位置を、それぞれの傾斜端面Ｆの中心が先に配置された各光ファイバＯｆの傾斜端面の中心に一致するように合わせる。そして、さらに２本の光ファイバＯｆの傾斜端面Ｆが下方を向くように周方向の角度を合わせる。
【０１００】
次いで、これら積層配置された光ファイバＯｆ及び積層部材Ｓｔを、接着剤（図示せず）で部分的に覆って固定する。
【０１０１】
次に、以上のように構成された光モジュールの動作を図３を用いて説明する。本光モジュールでは、いずれかの光ファイバＯｆの傾斜端面を有しない方の端に光ビームを入射せしめると、入射した光ビームは対応する光ファイバＯｆに結合効率１でもって伝搬し、その端から出射される。
【０１０２】
なお、上記の説明では、光ファイバＯｆ及び積層部材を２層に配置したが、もっと多数層に配置しても構わない。
【０１０３】
また、上記の説明では、各層の光ファイバＯｆ及び積層部材の径を同一にしたが、異なっていてもよい。
【０１０４】
また、上記の説明では、位置決めピンを格子状に１６本配置したが、もっと多数配置するようにしてもよく、また、第１の部品延設領域Ｒ１と第２の部品延設領域Ｒ２との対が方向を変えて多数形成されるようにしてもよい。
【０１０５】
以上のように、本実施の形態１においては、基台２０１の平坦な部品配設面２０１ａに、円柱形状の複数の位置決めピン２０２を、互いに垂直な２つの方向に直線的かつ帯状にそれぞれ延びる１以上の部品延設領域Ｒ１，Ｒ２の各々の両側縁に沿って、それらを幅方向に位置決め可能なように垂直に突設したので、構造が簡単で、しかも各光ファイバＯｆの側面のレンズ作用を利用して光接続してなる光接続，光合分波等の機能を有する光モジュールを容易に構築することが可能な光学台を提供することができる。
【０１０６】
また、本実施の形態１においては、光モジュールを、特定構造の円柱形状の光ファイバＯｆ及び積層部材Ｓｔを、上記光学台４００の第１の部品延設領域Ｒ１及び第２の部品延設領域Ｒ２に、１つの層においては１つの部品延設領域の幅方向に同一径のものが丁度整数本並び、方向の異なる方向の部品延設領域のもの同士が交差し、かつその交差点で、相接触する２つの光導波部材Ｏｆが双方の側面のレンズ作用を利用して光結合されるように積層配置してなるものとしたので、光ファイバＯｆを４５°の傾斜端面Ｆを有するものとし、これを積層部材Ｓｔとともにその長手方向の位置及び周方向の角度を合わせながら積層することにより容易に作成することができる、光接続，光合分波等の機能を有する光モジュールを提供することができる。
【０１０７】
また、本実施の形態１においては、第１の部品延設領域Ｒ１の幅と第２の部品延設領域Ｒ２の幅との比が整数比であるものとしたので、同一径の光ファイバＯｆを使用することができ、より容易に光モジュールを構築することができる。
【０１０８】
実施の形態２．
図１１は本発明の実施の形態２による光モジュールの構成を示す外観図であって、図１１(a) は上面図、図１１(b) は正面図、図１１(c) は右側面図である。図において、図３と同一符号は同一又は相当する部分を示し、本実施の形態２の光モジュールは、その構成要素として、さらにレンズアレイ（光素子アレイ）３０１を有している点が、実施の形態１の光モジュールと異なっているものである。
【０１０９】
すなわち、光学台４００の位置決めピン２０２のうち、左端に前後方向に並んだ４つの位置決めピン（係合ピン）にレンズアレイ３０１が嵌入されている。そして、光学台４００の３つの第１の部品延設領域Ｒ１の、上記左端の位置決めピン以外のピンが位置する部分に、それぞれ、光ファイバＯｆ及び積層部材Ｓｔが２層配置され、これら２層の光ファイバＯｆ及び積層部材Ｓｔは、下層に３本の積層部材が、上層に、中央に光ファイバＯｆが位置するようにして、１本の光ファイバＯｆと２本の積層部材Ｓｔとがそれぞれ配置されている。
【０１１０】
レンズアレイ３０１は、例えば矩形の板状の本体と３つの集光レンズ（光素子）２０３とからなり、該本体には、幅方向（高さ方向）に、位置決めピン２０２と嵌合する嵌合孔３０１ａが、位置決めピン２０２の前後方向のピッチと同じピッチで４つ穿設され、該４つ穿設された嵌合孔３０１ａの中間に位置するように３つの集光レンズ２０３が配設されている。該集光レンズ２０３は、レンズアレイ３０１が位置決めピン２０２に嵌入された状態で、その中心軸２０４が上記上層の中央に配置された光ファイバＯｆの中心軸Ａｘに一致するように配設されている。
【０１１１】
次に、以上のように構成された光モジュールの構築方法を説明する。
本光モジュールを構築するには、まず、３本の光ファイバＯｆ及び１５本の積層部材Ｓｔを図示するような所定の長さに切断する。
【０１１２】
次いで、光学台４００の３つの第１の部品延設領域Ｒ１に、３本の積層部材Ｓｔを長手方向に位置合わせしながら配置し、その後、該配置した３本の積層部材Ｓｔに重ねるように、１本の光ファイバＯｆと２本の積層部材Ｓｔとを光ファイバＯｆが中央に位置するようにして積層配置する。
【０１１３】
次いで、レンズアレイ３０１を光学台４００の左端の４つの位置決めピン２０２に嵌入する。
【０１１４】
次いで、これら積層配置された光ファイバＯｆ及び積層部材Ｓｔ、並びにレンズアレイ３０１を、それぞれ、接着剤（図示せず）で部分的に覆って固定する。
【０１１５】
次に、以上のように構成された光モジュールの動作を説明する。
本光モジュールでは、レンズアレイ３０１の集光レンズ２０３に入射した光ビームが、該集光レンズ２０３で収束されて光ファイバＯｆに入射する。
【０１１６】
なお、上記の説明では、部品延設領域Ｒ１を１方向にのみ形成したが、多数の方向に形成してもよい。
【０１１７】
なお、上記の説明では、光素子として光受動素子である集光レンズ２０３を用いるようにしたが、光フィルタ，光合分波器，レンズ，ミラー等の他の光受動素子を用いるようにしてもよい。
【０１１８】
以上のように、本実施の形態２においては、基台２０１の平坦な部品配設面２０１ａに、円柱形状の複数の位置決めピン２０２を、ある方向に直線的かつ帯状に延びる部品延設領域Ｒ１の各々の両側縁に沿って、それらを幅方向に位置決め可能なように垂直に突設したので、所定径の光ファイバＯｆ及び積層部材Ｓｔを部品延設領域Ｒ１に積層することにより、各光ファイバＯｆが幅方向及び高さ方向に位置決めされる。そして、さらに部品配設面２０１に垂直に複数の位置決めピン２０２をレンズアレイ位置決め用に突設したので、該レンズアレイ位置決め用の位置決めピン（係合ピン）でレンズアレイを位置決めすることができる。このため、レンズアレイ３０１を配置し、かつ光ファイバＯｆを長手方向に位置合わせしながら積層することにより集光レンズ２０３と光ファイバＯｆとを光接続することができる。その結果、構造が簡単で、しかも容易に光回路を構築することが可能な光学台を提供することができる。
【０１１９】
また、本実施の形態２においては、集光レンズ２０３が二次元方向に配置されたレンズアレイ３０１を、上記光学台４００の複数の位置決めピン２０２で集光レンズ２０３が各部品延設領域Ｒ１に位置するよう位置決めし、所定の光ファイバＯｆ及び積層部材Ｓｔを、集光レンズ２０３が位置する部品延設領域Ｒ１に、１つの部品延設領域Ｒ１の幅方向に同一径のものが丁度整数本並び、かつ光ファイバＯｆに対応する集光レンズ２０３と光結合するようにして積層配置したので、レンズアレイ３０１を位置決めピン２０２に嵌入して配置し、光ファイバＯｆを積層部材Ｓｔとともに長手方向に位置合わせしながら積層することにより、容易に光回路を構築することができる光モジュールを提供することができる。
【０１２０】
実施の形態３．
図１２は本発明の実施の形態３による光モジュールの構成を示す外観図であって、図１２(a) は上面図、図１２(b) は正面図、図１２(c) は右側面図である。
【０１２１】
図において、図３と同一符号は同一又は相当する部分を示し、本実施の形態３による光モジュールは、光配線基板４０１と、光ファイバＯｆと、積層部材Ｓｔとで構成される。
【０１２２】
光配線基板４０１は、光配線２０８を有する基板２０６の平坦な主面２０６ａに位置決めピン２０２と光接続ピン２０７とが垂直に突設されてなる。
【０１２３】
位置決めピン２０２の配置、位置決めピン２０２の間隔と光ファイバＯｆ及び積層部材Ｓｔの径との関係は図３の光学台４００と同じである。
【０１２４】
光接続ピン２０７は、例えば光ファイバＯｆと同一径で同一構造の光ファイバからなり、先端に光ファイバＯｆの傾斜端面Ｆと同じ傾斜端面を有し、基端は基板２０６の光配線２０８に光学的に接続されている。そして、光接続ピン２０７は、中心軸が第１の部品延設領域Ｒ１の幅方向の中央に位置し、傾斜端面Ｆが該幅方向（図示例では後方）を向き、かつ傾斜端面Ｆの中心の高さが２層目に配置される光ファイバＯｆの中心軸の高さに一致するように配設されている。
【０１２５】
そして、この光配線基板４０１の各第１の部品延設領域Ｒ１に、光ファイバＯｆが積層部材Ｓｔとともに２層配置され、これら２層の光ファイバＯｆ及び積層部材Ｓｔは、下層に３本の積層部材が、上層に、前側に光ファイバＯｆが位置するようにして、１本の光ファイバＯｆと２本の積層部材Ｓｔとがそれぞれ配置されている。そして、上記光ファイバＯｆは、傾斜端面Ｆが第１の部品延設領域Ｒ１の幅方向（図示例では前方）を向き、かつ傾斜端面Ｆの中心が該幅方向から見て光接続ピン２０７の傾斜端面Ｆの中心に一致するように配置されている。これにより、光ファイバＯｆと光接続ピン２０７とは、実施の形態１で説明した、光ファイバ間を双方の側面のレンズ作用を利用して光結合した光接続構造と同じ位置関係を有するものとなっている。
【０１２６】
そして、上記積層配置された光ファイバＯｆ及び積層部材Ｓｔは接着剤（図示せず）で固定されている。
【０１２７】
次に、以上のように構成された光モジュールの構築方法を説明する。
本光モジュールを構築するには、まず、３本の光ファイバＯｆ及び１５本の積層部材Ｓｔを図示するような所定の長さに切断する。
【０１２８】
次いで、光配線基板４０１の３つの第１の部品延設領域Ｒ１に、３本の積層部材Ｓｔを長手方向に位置合わせしながら配置し、その後、該配置した３本の積層部材Ｓｔに重ねるように、１本の光ファイバＯｆと２本の積層部材Ｓｔとを光ファイバＯｆが前側に位置するようにして積層配置する。光ファイバＯｆは、さらに、傾斜端面Ｆが前方を向くように周方向の角度を合わせる。
【０１２９】
次いで、これら積層配置された光ファイバＯｆ及び積層部材Ｓｔを接着剤で部分的に覆って固定する。
【０１３０】
次に、以上のように構成された光モジュールの動作を説明する。
本光モジュールでは、光ファイバＯｆに光ビームを入射せしめると、該入射した光ビームは対応する光接続ピン２０７に結合効率１でもって伝搬し、基板２０６の光配線２０８に伝搬される。また逆に、光配線２０８からの光ビームが光接続ピン２０７を介して光ファイバＯｆに結合効率１でもって伝搬され、その端から出射される。
【０１３１】
以上のように、本実施の形態３においては、光配線２０８を有する基板２０６の平坦な部品配設面２０６ａに、基板２０６の光配線２０８と接続され光ファイバＯｆと同一構造を有する光接続ピン２０７を垂直に突設するとともに、円柱形状の複数の位置決めピン２０２を、１以上の部品延設領域Ｒ１の各々の両側縁に沿って、それらを幅方向に位置決め可能なように垂直に突設したので、光ファイバＯｆを積層部材Ｓｔとともに長手方向の位置及び周方向の角度を合わせながら積層配置することにより、光ファイバＯｆと光接続ピン２０７とを双方の側面のレンズ作用を利用して光接続することができるため、簡単な構成で光配線２０８を外部と容易に接続することが可能な光配線基板を提供することができる。
【０１３２】
また、本実施の形態３においては、特定構造の光ファイバＯｆ及び積層部材Ｓｔを、上記光配線基板４０１の部品延設領域Ｒ１に、部品延設領域Ｒ１の幅方向に同一径のものが丁度整数本並び、かつ光ファイバＯｆと光接続ピン２０７とが双方の側面のレンズ作用を利用して光結合されるように積層配置したので、光ファイバＯｆを積層部材Ｓｔとともにその長手方向の位置及び周方向の角度を合わせながら積層することにより、容易に光配線基板の外部光配線を行うことが可能な光モジュール提供することができる。
【０１３３】
実施の形態４．
図１３は本発明の実施の形態４による光モジュールの構成を示す外観図であって、図１３(a) は上面図、図１３(b) は正面図、図１３(c) は右側面図である。図において、図３，及び図１２と同一符号は同一又は相当する部分を示し、本実施の形態５による光モジュールは、ＥＯボード（光電子配線基板）４０２と、光ファイバＯｆと、積層部材Ｓｔと、レーザアレイ（光素子アレイ）３０２とで構成される。
【０１３４】
ＥＯボード４０２は、光配線２０８及び電気配線２１１を有する基板２０９の平坦な主面（部品配設面）２０９ａに、位置決めピン２０２と、光接続ピン２０７と、電極ピン２１０とが垂直に突設されてなる。
【０１３５】
電極ピン２１０は位置決めピン２０２と同一形状を有しており、さらに、電極ピン２１０は、第１の電極ピン２１０ａと第２の電極ピン２１０ｂとで構成され、第１の電極ピン２１０ａの基端，及び第２の電極ピン２１０ｂの基端は、基板２０９の電気配線２１１の例えば正極端子，及び負極端子（図示せず）にそれぞれ接続されている。そして、第１の電極ピン２１０ａ，及び第２の電極ピン２１０ｂは前後方向に交互に配置されており、かつこの電極ピン２１０と位置決めピン２０２とが、該電極ピン２１０が左端に位置するようにして、格子状に配置されている。
【０１３６】
これら位置決めピン２０２及び電極ピン２１０の間隔と光ファイバＯｆ及び積層部材Ｓｔの径との関係は、図３の光学台４００における位置決めピン２０２の間隔と光ファイバＯｆ及び積層部材Ｓｔの径との関係と同じである。
【０１３７】
光接続ピン２０７は、その中心軸の第１の部品延設領域Ｒ１の幅方向における位置が、該第１の部品延設領域Ｒ１に配置される後側の積層部材Ｓｔの中心軸の位置に一致するように配設される点を除き、図１２の光配線基板４０１の光接続ピン２０７と同じである。
【０１３８】
そして、ＥＯボード４０２の４つの電極ピン２１０にレーザアレイ３０２が嵌入されている。また、ＥＯボード４０２の３つの第１の部品延設領域Ｒ１の、位置決めピン２０２が位置する部分に、それぞれ、光ファイバＯｆ及び積層部材Ｓｔが２層配置され、これら２層の光ファイバＯｆ及び積層部材Ｓｔは、下層に３本の積層部材が、上層に、中央に光ファイバＯｆが位置するようにして、１本の光ファイバＯｆと２本の積層部材Ｓｔとがそれぞれ配置されている。そして、上記光ファイバＯｆと光接続ピン２０７とは、図１２と同様に、双方の側面のレンズ作用を利用して光結合した光接続構造を有するものとなっている。
【０１３９】
レーザアレイ３０２は、例えば矩形の板状の本体と３つの半導体レーザ（光素子）２１３とからなり、該本体には、幅方向に、電極ピン２１０と嵌合する嵌合孔３０２ａが、電極ピン２１０の前後方向のピッチと同じピッチで４つ穿設され、該４つ穿設された嵌合孔３０２ａの中間に位置するように３つの半導体レーザ２１３が配設されている。上記嵌合孔３０２ａの内面には、嵌合する電極ピン２１０と接触可能に電極ピン接触用電極２１２が配設され、該電極ピン接触用電極２１２は半導体レーザ２１３の正電極又は負電極（図示せず）に接続されている。半導体レーザ２１３のレーザ光出射孔（図示せず）の中心軸２１４と光ファイバＯｆの中心軸Ａｘとの位置関係は、図１１のレンズアレイの集光レンズ２０３の中心軸２０４と光ファイバＯｆの中心軸Ａｘとの位置関係と同じである。
【０１４０】
そして、上記積層配置された光ファイバＯｆ及び積層部材Ｓｔ、並びにレーザアレイ３０２は接着剤（図示せず）で固定されている。
【０１４１】
次に、以上のように構成された光モジュールの構築方法を説明する。
本光モジュールを構築するには、まず、３本の光ファイバＯｆ及び１５本の積層部材Ｓｔを図示するような所定の長さに切断する。
【０１４２】
次いで、ＥＯボード４０２の３つの第１の部品延設領域Ｒ１に、３本の積層部材Ｓｔを長手方向に位置合わせしながら配置し、その後、該配置した３本の積層部材Ｓｔに重ねるように、１本の光ファイバＯｆと２本の積層部材Ｓｔとを光ファイバＯｆが後側に位置するようにして積層配置する。光ファイバＯｆは、さらに、傾斜端面Ｆが前方を向くように周方向の角度を合わせる。
【０１４３】
次いで、レーザアレイ３０２をＥＯボード４０２の４つの電極ピン２１０に嵌入する。
【０１４４】
次いで、これら積層配置された光ファイバＯｆ及び積層部材Ｓｔ、並びに嵌入配置されレーザアレイ３０２を、それぞれ、接着剤（図示せず）で部分的に覆って固定する。
【０１４５】
次に、以上のように構成された光モジュールの動作を説明する。
本光モジュールでは、レーザアレイ３０２の半導体レーザ２１３は、ＥＯボード４０２の電気配線２１１から電極ピン２１０，及び電極ピン接触用電極２１２を介して給電される。そして、この給電を受けて半導体レーザ２１３がレーザ光を出射すると、この出射されたレーザ光は、光ファイバＯｆに入射し、次いで結合効率１でもってＥＯボード４０２の光接続ピン２０７に伝搬され、次いで光配線２０８に伝搬される。
【０１４６】
なお、上記の説明では、電極を有する光素子として半導体レーザ２１３を用いるようにしたが、フォトダイオード等の電極を有する光能動素子、光変調器等の電極を有する光受動素子を用いるようにしてもよい。
【０１４７】
以上のように、本実施の形態４においては、電気配線２１１及び光配線２０８を有する基板２０９の平坦な部品配設面２０９ａに、基板２０９の電気配線２１１に接続された電極ピン２１０，及び基板２０９の光配線２０８に接続された光接続ピン２０７をそれぞれ垂直に突設するとともに、円柱形状の複数の位置決めピン２０２を、ある方向に直線的かつ帯状に延びる１以上の第１の部品延設領域Ｒ１の各々の両側縁に沿って、それらを幅方向に位置決め可能なように垂直に突設したので、部品延設領域Ｒ１に光ファイバＯｆを積層部材Ｓｔとともに積層することにより簡単な構成で光配線２０８を外部と容易に接続することが可能であるとともに、電極ピン２１０をレーザアレイ３０２の位置決めに利用し、かつ、電極ピン２１０を通じてレーザアレイ３０２の半導体レーザ２１３に給電するように構成することにより光電子回路を容易に構築することが可能なＥＯボードを提供することができる。
【０１４８】
また、本実施の形態４においては、特定構造の光ファイバＯｆ及び積層部材Ｓｔを、上記ＥＯボードの部品延設領域Ｒ１に、１つの部品延設領域Ｒ１の幅方向に同一径のものが丁度整数本並び、かつ光ファイバＯｆと光接続ピン２０７とが双方の側面のレンズ作用を利用して光接続されるように積層配置したので、光ファイバＯｆを積層部材Ｓｔとともにその長手方向の位置及び周方向の角度を合わせながら積層することにより、容易にＥＯボードの外部光配線を行いかつ光電子回路を構築することが可能な光モジュールを提供することができる。
【０１４９】
実施の形態５．
図１４は本発明の実施の形態５による光モジュールの構成を示す外観図であって、図１４(a) は上面図、図１４(b) は正面図、図１４(c) は右側面図である。
【０１５０】
図において、図１３と同一符号は同一又は相当する部分を示し、本実施の形態５による光モジュールは、ＥＯボード４０２と、ジャンパ部材３０３とで構成される。
【０１５１】
ＥＯボード４０２は、光配線２０８及び電気配線２１１を有する基板２０９の平坦な主面（部品配設面）２０９ａに、位置決めピン２０２と、電極ピン２１０とが垂直に突設されてなる。
【０１５２】
これら電極ピン２１０及び位置決めピン２０２は、４つの電極ピン２１０の基端が基板２０９の電気配線２１１の異なる端子（図示せず）にそれぞれ接続されている点を除き、図１３の電極ピン２１０及び位置決めピン２０２と同様である。
【０１５３】
ジャンパ部材３０３は、導電性材料からなり、電極ピン２１０と嵌合する嵌合孔３０３ａが、電極ピン２１０の前後方向のピッチと同じピッチで複数（図示例では２つ）穿設されてなる。
【０１５４】
そして、このジャンパ部材３０３が、ＥＯボード４０２の４つの電極ピン２１０に２つ嵌入されている。これにより、各ジャンパ部材３０３と嵌合している２つの電極ピン２１０は、各ジャンパ部材３０３により電気的に接続されている。
【０１５５】
なお、上記の説明では、ジャンパ部材３０３は、嵌合孔３０３ａを有するものとしたが、これに代えて、図１５に示すような、その側面に電極ピン２１０と嵌合可能な半開状の嵌合溝３０３ｂを有するものとしてもよい。
【０１５６】
このように、本実施の形態５においては、ＥＯボード４０２の電極ピン２１０が、該電極ピン２１０に嵌合するジャンパ部材３０３で電気的に接続されているので、ジャンパ部材３０３を電極ピン２１０と嵌合せしめるだけで、容易にＥＯボード４０２の外部電気配線を行うことが可能な光モジュールを提供することができる。
【０１５７】
実施の形態６．
図１６は本発明の実施の形態６による光モジュールの構成を示す外観図であって、図１６(a) は上面図、図１６(b) は正面図、図１６(c) は右側面図である。
【０１５８】
図において、図１２と同一符号は同一又は相当する部分を示し、本実施の形態６の光モジュールは、ＥＯチップ（光電子集積装置）４０３と、光ファイバＯｆと、積層部材Ｓｔとで構成される。
【０１５９】
ＥＯチップ４０３は、光電子回路２１６を有するチップ２１５の平坦な上面（部品配設面）２１５ａに位置決めピン２０２と光接続ピン２０７とが垂直に突設されてなり、これら位置決めピン２０２及び光接続ピン２０７の配置は、光接続ピン２０７の基端が光電子回路２１６に光学的に接続されている点を除き、図１２の光配線基板４０１の位置決めピン２０２及び光接続ピン２０７の配置と同様である。
【０１６０】
そして、このＥＯチップ４０３の部品配設面２１５ａに光ファイバＯｆ及び積層部材Ｓｔが、図１２の光モジュールと全く同様に積層配置されている。
【０１６１】
従って、本実施の形態６によれば、実施の形態３と同様に、簡単な構成で光配線２０８を外部と容易に接続することが可能なＥＯチップを提供することができる。
【０１６２】
また、本実施の形態６によれば、実施の形態３と同様に、光ファイバＯｆを積層部材Ｓｔとともにその長手方向の位置及び周方向の角度を合わせながら積層することにより、容易にＥＯチップの外部光配線を行うことが可能な光モジュール提供することができる。
【０１６３】
実施の形態７．
図１７は本発明の実施の形態７による光モジュールの構成を示す外観図であって、図１７(a) は上面図、図１７(b) は正面図、図１７(c) は右側面図である。
【０１６４】
図において、図１３と同一符号は同一又は相当する部分を示し、本実施の形態７の光モジュールは、ＥＯチップ４０３と、光ファイバＯｆと、積層部材Ｓｔと、レーザアレイ３０２とで構成される。
【０１６５】
ＥＯチップ４０３は、光電子回路２１６を有するチップ２１５の平坦な上面（部品配設面）２１５ａに、位置決めピン２０２と、光接続ピン２０７と、電極ピン２１０とが垂直に突設されてなり、これら位置決めピン２０２、光接続ピン２０７、及び電極ピン２１０の配置は、光接続ピン２０７の基端が光電子回路２１６に光学的に接続され、電極ピン２１０の基端が光電子回路２１６に電気的に接続されている点を除き、図１３のＥＯボード４０２の位置決めピン２０２、光接続ピン２０７、及び電極ピン２１０の配置と同様である。
【０１６６】
そして、このＥＯチップ４０３の部品配設面２１５ａに光ファイバＯｆ，積層部材Ｓｔ，及びレーザアレイが、図１３の光モジュールと全く同様に配置されている。
【０１６７】
従って、本実施の形態７によれば、実施の形態４と同様に、部品延設領域Ｒ１に光ファイバＯｆを積層部材Ｓｔとともに積層することにより簡単な構成で光配線２０８を外部と容易に接続することが可能であるとともに、電極ピン２１０をレーザアレイ３０２の位置決めに利用し、かつ、電極ピン２１０を通じてレーザアレイ３０２の半導体レーザ２１３に給電するように構成することにより光電子回路を容易に構築することが可能なＥＯチップを提供することができる。
【０１６８】
また、本実施の形態７によれば、実施の形態４と同様に、光ファイバＯｆを積層部材Ｓｔとともにその長手方向の位置及び周方向の角度を合わせながら積層することにより、容易にＥＯチップ４０３の外部光配線を行いかつ光電子回路を構築することが可能な光モジュールを提供することができる。
【０１６９】
実施の形態８．
図１８は本発明の実施の形態８による光モジュールの構成を示す外観図であって、図１８(a) は上面図、図１８(b) は正面図、図１８(c) は右側面図である。ここで、図１８(a) はチップを除いた状態を示している。
図において、図１３，及び図１６と同一符号は同一又は相当する部分を示し、本実施の形態８の光モジュールは、ＥＯボード４０２と、該ＥＯボード４０２の部品配設面２０９ａにその部品配設面２１５ａが対向するように配置されたＥＯチップ４０３と、ＥＯボード４０２の部品配設面２０９ａに配置された光ファイバＯｆ，積層部材Ｓｔ，及びレーザアレイ３０２とで構成される。
【０１７０】
そして、ＥＯボード４０２は、図１３のＥＯボード４０２において、位置決めピン２０２のうちの左端に位置する４つのものを、第１，第２の電極ピン２１０ａ，２１０ｂと同じ構造を有しかつそれらより長い電極ピンで構成して第３の電極ピン２１０ｃとし、さらに光接続ピン２０７のうち前側及び後側に位置するものを残してこれを第１の光接続ピン２０７ａとしたものとなっており、また、ＥＯチップ４０３は、光電子回路２１６がＥＯボード４０２の第３の電極ピン２１０ａの先端と電気的に接続され、さらに、図１３のＥＯボード４０２における光接続ピン２０７のうち中央に位置するものに対応する位置に、該光接続ピン２０７と同一の構造を有しかつその基端が光電子回路２１６に光学的に接続された第２の光接続ピン２０７ｂを有している。ここで、ＥＯチップ４０３の部品配設面２１５ａの、第３の電極ピン２１０ｃに対応する位置には、その内面に光電子回路２１６に接続された電極を有する電極孔（図示せず）が配設されており、この電極孔にＥＯボードの第３の電極ピン２１０ｃが嵌挿されることにより、該第３の電極ピン２１０ｃが光電子回路２１６に接続されるようになっている。また、ＥＯボード４０２とＥＯチップ４０３とは、図示されない位置決め手段及び固定手段により着脱自在となっている。
【０１７１】
そして、中央の第１の部品延設領域に配置される光ファイバＯｆがＥＯチップ４０３の第２の光接続ピン２０７ｂと双方の側面のレンズ作用を利用して光接続される点を除き、図１３の光モジュールと同様にして、ＥＯボード４０２の部品配設面２０９ａに光ファイバＯｆ，積層部材Ｓｔ，及びレーザアレイ３０２が配置されている。
【０１７２】
次に、以上のように構成された光モジュールの動作を説明する。
本光モジュールでは、レーザアレイ３０２の半導体レーザ２１３が、ＥＯボード４０２の電気配線２１１から給電されてレーザ光を出射する。そして、レーザアレイ３０２の前側及び後側の半導体レーザ２１３から出射されたレーザ光は、前側及び後側の光ファイバＯｆに入射し、それぞれＥＯボード４０２の第１の光接続ピン２０７ａを通って光配線２０８に伝搬される。また、レーザアレイ３０２の中央の半導体レーザ２１３から出射されたレーザ光は、中央の光ファイバＯｆに入射し、ＥＯチップ４０３の第２の光接続ピン２０７ｂを通って光電子回路２１６に伝搬される。また、ＥＯボード４０２の電気配線２１１とＥＯチップ４０３の光電子回路２０９とが電気的に接続される。
【０１７３】
以上のように、本実施の形態８においては、実施の形態４の光モジュールにおいて、ＥＯチップ４０３が基板２０９の部品配設面２０９ａに対向するように配置され、少なくとも基板２０９の電極ピン２１０ｃがＥＯチップ４０３の光電子回路２１６に電気的に接続されてなるものとしたので、ＥＯボード４０２とＥＯチップ４０３との間に、所望の光配線又は光電子回路を容易に構築可能な光モジュールを提供することができる。
【０１７４】
また、本実施の形態８においては、位置決めピンの２０２の一部を、同一形状の電極ピン２１０ｃで構成するようにしたので、位置決めピン２０２を節約することができる。
【０１７５】
なお、上記実施の形態２，３，４，６，７，８において、第１の部品延設領域Ｒ１にのみ光ファイバＯｆ及び積層部材Ｓｔを配置しているが、実施の形態１と同様に、第２の部品延設領域Ｒ２にも光ファイバＯｆ及び積層部材Ｓｔを配置して所望の光ファイバ間を双方の側面のレンズ作用を利用して光接続するようにしてもよい。また、そのように双方の側面のレンズ作用を利用して光接続された一方の光ファイバと、光素子アレイ３０１，３０２の光素子２０３，２１３、又は光接続ピン２０７とを、双方の側面のレンズ作用を利用して光接続するようにしてもよい。
【０１７６】
また、上記実施の形態４，７，８において、電極ピン２１０を増設し、それらを実施の形態５と同様にジャンパ部材３０３を用いて電気的に接続するようにしてもよい。
【０１７７】
また、上記実施の形態８において、ＥＯボード４０２とＥＯチップ４０３との間を光接続ピン２０７で接続するようにしてもよい。
【０１７８】
また、上記実施の形態８において、ＥＯボード４０２ではなくＥＯチップ４０３に位置決めピン２０２を配設し、光ファイバＯｆ及び積層部材ＳｔをＥＯチップ４０３側に配置するようにしてもよい。
【０１７９】
また、上記実施の形態１〜８では、位置決めピン２０２又は電極ピン２１０を円柱形状としているが、これらは光ファイバＯｆ及び積層部材Ｓｔを積層しようとしている高さまで一定の径を有すればよく、先端の形状は問わない。また、断面も円形には限られず、例えば、４角形，３角形等としてもよい。
【０１８０】
また、上記実施の形態２，４，７，８において、光素子アレイ３０１，３０２は、嵌合孔３０１ａ，３０２ａを有するものとしているが、これを図１５に示すジャンパ部材３０３のように、半開状の嵌合溝３０２ｂを有するものとしてもよい。また、光素子アレイ３０１，３０２を位置決めピン２０２又は電極ピン２１０に嵌入するようにしているが、これらを位置決めピン２０２又は電極ピン２１０間に嵌挿することにより位置決めするようにしてもよい。
【０１８１】
また上記実施の形態６，７，８において、ＥＯチップを用いているが、これは平坦な部品配設面を有する光電子集積装置の一例を示したものであり、ＥＯチップに代えて、例えば、フレーム等の固定部材の中央部にＥＯチップを、周辺部にＥＯチップとボンディングワイヤで接続されたボンディングパッドをそれぞれ配設したパッケージであって、該固定部材の一部に平坦な部品配設面を有するようなものを用いてもよい。
【０１８２】
また、上記実施の形態１〜８では、積層配置された光ファイバＯｆ及び積層部材Ｓｔ、及び光素子アレイ３０１，３０２を接着剤で固定するようにしたが、例えば、位置決めピン２０２，電極ピン２１０との嵌合孔を有する押さえ板で押さえることにより固定するようにしてもよい。
【０１８３】
また、上記実施の形態２において、レンズアレイ３０１を固定する位置決めピン２０２（係合ピン）を１本とするとともに該係合ピン及びレンズアレイ３０１の嵌合孔３０１ａの断面形状を異形（３角形、４角形等）とし、それにより１本の係合ピンでレンズアレイ３０１を位置決めするようにしてもよい。
【０１８４】
また、上記実施の形態３，４，６，７，８において、光導波部材Ｏｆと光接続ピン２０７とを光コネクタで光接続するようにしてもよい。
【０１８５】
また、上記実施の形態１〜８において、部品延設領域Ｒ１，Ｒ２の片側に位置する位置決めピン２０２（並列方向保持手段）に代えて、例えば、Ｖ溝を有する固定台の該Ｖ溝で位置決めされた光ファイバＯｆ等、他の並列方向保持手段を用いるようにしてもよい。この場合でも、なお、他方の側の位置決めピン２０２が並列方向保持手段として用いられているため、簡単な構成で多数本の光ファイバを並列に密接配置することが可能である。
【０１９０】
また、請求項１の発明によれば、光配線を有する基板の平坦な部品配設面に、基板の光配線と接続され光導波部材と同一構造を有する光接続ピンを垂直に突設するとともに、所定の高さまで一定径を有する複数の位置決めピンを、ある方向に直線的かつ帯状に延びる１以上の部品延設領域の各々の両側縁に沿って、それらを幅方向に位置決め可能なように垂直に突設したので、位置決めピンの間隔より長い円柱形状の光導波部材を用い、予め部品延設領域の幅を光導波部材が丁度整数本並ぶように設定しておき、光導波部材を部品延設領域に積層することにより、各導波部材が幅方向及び高さ方向に位置決めされるとともに導波部材と光接続ピンとが互いに９０°捩じれた関係に位置せしめられる。このため、さらに導波部材及び光接続ピンを、４５°の傾斜端面を有する特定構造のものとするとともに導波部材が部品延設領域に積層されたとき該積層された導波部材の傾斜端面と光接続ピンの傾斜端面とが特定の位置関係となるように設定しておけば、導波部材を上記のように積層しかつその長手方向における位置及び周方向における角度を合わせるだけで、導波部材と光接続ピンとを双方の側面のレンズ作用を利用して光結合させることができ、その結果、簡単な構成で光配線を外部と容易に接続することが可能な光配線基板を提供することができる。また、部品配設面に、上記部品延設領域に垂直な他の部品延設領域を形成するように位置決めピンをさらに配設することにより、光回路を容易に構築することが可能な光配線基板を提供することができる。
【０１９１】
また、請求項２の発明によれば、電気配線及び光配線を有する基板の平坦な部品配設面に、基板の電気配線に接続された電極ピン，及び基板の光配線に接続された光接続ピンをそれぞれ垂直に突設するとともに、所定の高さまで一定径を有する複数の位置決めピンを、ある方向に直線的かつ帯状に延びる１以上の第１の部品延設領域の各々の両側縁に沿って、それらを幅方向に位置決め可能なように垂直に突設したので、部品延設領域に光導波部材を積層することにより簡単な構成で光配線を外部と容易に接続することが可能であるとともに、電極ピンを光素子アレイの位置決めに利用することにより光回路を容易に構築することが可能であり、かつ、電極ピンを通じて光素子アレイの光素子に給電するように構成することにより光電子回路を容易に構築することが可能な光電子配線基板を提供することができる。
【０１９２】
また、請求項３の発明によれば、請求項２の発明において、上記位置決めピンを、さらに第１の部品延設領域に垂直な方向に直線的かつ帯状に延びる１以上の第２の部品延設領域の各々の両側縁に沿って、それらを幅方向に位置決め可能なように配置したので、光導波部材を、方向が異なる部品延設領域に互いに交差するように積層することにより、側面のレンズ作用を利用してなる光接続，光合分波等の機能を有する光回路を容易に構築することが可能となる。
【０１９３】
また、請求項４の発明によれば、請求項２又は３の発明において、上記位置決めピンの一部を、少なくとも上記所定の高さまで一定の径を有するように形成された上記電極ピンで構成するようにしたので、位置決めピンを節約することができる。
【０１９４】
また、請求項５の発明によれば、本体の平坦な部品配設面に、本体の光電子回路に電気的に接続された電極ピン，及び本体の光電子回路に光学的に接続された光接続ピンをそれぞれ垂直に突設するとともに、所定の高さまで一定径を有する複数の位置決めピンを、ある方向に直線的かつ帯状に延びる１以上の第１の部品延設領域の各々の両側縁に沿って、それらを幅方向に位置決め可能なように垂直に突設したので、部品延設領域に光導波部材を積層することにより簡単な構成で光電子回路を光学的に外部と容易に接続することが可能であるとともに、電極ピンを光素子アレイの位置決めに利用することにより光回路を容易に構築することが可能であり、かつ、電極ピンをジャンパ部材で接続する等することにより容易にその光電子回路を外部配線等することが可能な光電子集積装置を提供することができる。
【０１９５】
また、請求項６の発明によれば、請求項５の発明において、上記位置決めピンを、さらに第１の部品延設領域に垂直な方向に直線的かつ帯状に延びる１以上の第２の部品延設領域の各々の両側縁に沿って、それらを幅方向に位置決め可能なように配置したので、光導波部材を、方向が異なる部品延設領域に互いに交差するように積層することにより、側面のレンズ作用を利用してなる光接続，光合分波等の機能を有する光回路を容易に構築することが可能となる。
【０１９６】
また、請求項７の発明によれば、請求項５又は６の発明において、上記位置決めピンの一部を、少なくとも上記所定の高さまで一定の径を有するように形成された上記電極ピンで構成するようにしたので、位置決めピンを節約することができる。
【０２０２】
また、請求項８の発明によれば、特定構造の円柱形状を有する光導波部材を、請求項５の光配線基板の一部又は全部の上記部品延設領域に、１つの部品延設領域の幅方向に同一径のものが丁度整数本並び、かつ光導波部材と光接続ピンとが光結合されるように１層以上積層したので、光導波部材を積層し、光接続ピンと光接続することにより、並列に積層配置された光配線基板の外部光配線を容易に行うことが可能な光モジュールを提供することができる。
【０２０３】
また、請求項９の発明によれば、特定構造の円柱形状を有する光導波部材を、請求項２〜４のいずれかの光電子配線基板の一部又は全部の上記部品延設領域に、１つの部品延設領域の幅方向に同一径のものが丁度整数本並び、かつ光導波部材と光接続ピンとが光結合されるように１層以上積層したので、光導波部材を積層し、光接続ピンと光接続することにより、並列に積層配置された光電子配線基板の外部光配線を容易に行うことが可能な光モジュールを提供することができる。
【０２０４】
また、請求項１０の発明によれば、特定構造の円柱形状の光導波部材を、請求項３の光電子配線基板の第１の部品延設領域及び第２の部品延設領域に、１つの層においては１つの部品延設領域の幅方向に同一径のものが丁度整数本並び、方向の異なる方向の部品延設領域のもの同士が交差し、交差点の一部又は全部で、相接触する２つの光導波部材が双方の側面のレンズ作用を利用して光結合され、かつ少なくとも１つの光導波部材と少なくとも１つの光接続ピンとが光結合されるように１層以上積層配置したので、光導波部材を４５°の傾斜端面を有するものとするとともに、これを長手方向の位置及び周方向の角度を合わせながら積層し、光導波部材と光接続ピンとを光接続することにより、容易に光電子配線基板の外部光配線が可能で容易に光導波部材間の光接続を構築することが可能な光モジュールを提供することができる。
【０２０５】
また、請求項１１の発明によれば、請求項９又は１０の発明において、光素子が二次元方向に配置された光素子アレイを、上記光電子配線基板の複数の位置決めピンで光素子が一部又は全部の部品延設領域に位置するよう位置決めし、上記光導波部材を、対応する光素子と光結合するように配置したので、光素子アレイを上記位置決めピンに嵌入する等して配置し、光導波部材を長手方向に位置合わせしながら積層することにより、さらに光回路を容易に得ることが可能な光モジュールを提供することができる。
【０２０６】
また、請求項１２の発明によれば、請求項９〜１１のいずれかの発明において、光電子集積装置が基板の部品配設面に対向するように配置され、少なくとも、基板の１以上の電極ピンの一部若しくは全部が光電子集積装置の光電子回路に電気的に接続され、又は基板の１以上の光接続ピンの一部若しくは全部が光電子集積装置の光電子回路に光学的に接続されてなるものとしたので、光電子配線基板と光電子集積装置との間に、所望の光配線又は光電子回路を容易に構築可能な光モジュールを提供することができる。
【０２０７】
また、請求項１３の発明によれば、特定構造の円柱形状を有する光導波部材を、請求項５〜７のいずれかの光電子集積装置の一部又は全部の上記部品延設領域に、１つの部品延設領域の幅方向に同一径のものが丁度整数本並び、かつ光導波部材と光接続ピンとが光結合されるように１層以上積層したので、光導波部材及び光接続ピンを４５°の傾斜端面を有するものとするとともに、光導波部材を長手方向の位置及び周方向の角度を合わせながら積層することにより、容易に光電子集積装置の外部光配線を行うことがが可能な光モジュールを提供することができる。
【０２０８】
また、請求項１４の発明によれば、特定構造の円柱形状の光導波部材を、請求項６の光電子集積装置の第１の部品延設領域及び第２の部品延設領域に、１つの層においては１つの部品延設領域の幅方向に同一径のものが丁度整数本並び、方向の異なる方向の部品延設領域のもの同士が交差し、交差点の一部又は全部で、相接触する２つの光導波部材が双方の側面のレンズ作用を利用して光結合され、かつ少なくとも１つの光導波部材と少なくとも１つの光接続ピンとが光結合されるように１層以上積層配置したので、光導波部材を４５°の傾斜端面を有するものとするとともに、これを長手方向の位置及び周方向の角度を合わせながら積層し、光導波部材と光接続ピンとを光接続することにより、容易に光電子集積装置の外部光配線が可能で容易に光導波部材間の光接続を構築することが可能な光モジュールを提供することができる。
【０２０９】
また、請求項１５の発明によれば、請求項１３又は１４の発明において、光素子が二次元方向に配置された光素子アレイを、上記光電子集積装置の複数の位置決めピンで光素子が一部又は全部の部品延設領域に位置するよう位置決めし、上記光導波部材を、対応する光素子と光結合するように配置したので、光素子アレイを上記位置決めピンに嵌入する等して配置し、光導波部材を長手方向に位置合わせしながら積層することにより、さらに光回路を容易に得ることが可能な光モジュールを提供することができる。
【０２１０】
また、請求項１６の発明によれば、請求項１３〜１５のいずれかの発明において、光電子配線基板が本体の部品配設面に対向するように配置され、少なくとも、本体の１以上の電極ピンの一部若しくは全部が光電子配線基板の電気配線に電気的に接続され、又は本体の１以上の光接続ピンの一部若しくは全部が光電子配線基板の光配線に光学的に接続されてなるものとしたので、光電子集積装置と光電子配線基板との間に、所望の光配線又は光電子回路を容易に構築可能な光モジュールを提供することができる。
【０２１１】
また、請求項１７の発明によれば、請求項１１又は１５の発明において、上記光素子アレイが電極を有する光素子からなるものを含み、電極を有する光素子からなる光素子アレイが、内面に光素子の電極に接続された電極ピンとの接触用の電極を有する孔又は溝を位置決め用の電極ピンと嵌合せしめることにより位置決めされてなるものとしたので、光素子アレイを所定の位置決め用電極ピンと嵌入し、光導波部材を位置決めピン間に積層することにより作成することができ、その結果、容易に光電子回路を構築可能な光モジュールを提供することができる。
【０２１２】
また、請求項１８の発明によれば、請求項８〜１７のいずれかの発明において、光導波部材と光接続ピンとの光結合が、双方の側面のレンズ作用を利用することにより形成されるようにしたので、光導波部材及び光接続ピンを４５°の傾斜端面を有するものとするとともに、光導波部材を長手方向の位置及び周方向の角度を合わせながら積層することにより、光配線基板，光電子配線基板，又は光電子集積装置と外部光配線との接続を容易に行うことが可能な光モジュールを提供することができる。
【０２１３】
また、請求項１９の発明によれば、請求項８〜１８のいずれかの発明において、光導波部材のうち、他の光導波部材，光素子アレイの光素子，又は光接続ピンと光結合しない光導波部材の一部又は全部を、該光結合しない光導波部材と同一形状の積層部材で構成するようにしたので、光導波部材を節約することができる。
【０２１４】
また、請求項２０の発明によれば、請求項２〜４のいずれかの光電子配線基板、請求項５〜７のいずれかの光電子集積装置、又は請求項９〜１８のいずれかの光モジュールと、この光電子配線基板，光電子集積装置，又は光モジュールの上記電極ピンに嵌合する複数の孔又は溝を有し、該複数の孔又は溝に嵌合する電極ピン同士を電気的に接続する１以上のジャンパ部材とを備え、上記光電子配線基板，光電子集積装置，又は光モジュールの電極ピンのうちの２以上のものが、上記１以上のジャンパ部材の孔又は溝と嵌合することにより各ジャンパ部材を介して電気的に接続されてなるものとしたので、ジャンパ部材を電極ピンに嵌入するだけで、光電子配線基板、光電子集積装置、又は光モジュールの所望の電気配線を行うことができ、その結果、容易に電気配線を行うことが可能な光モジュールを提供することができる。
【図面の簡単な説明】
【図１】 本発明の実施の形態１による光モジュールを構築するのに用いる光学台の構成を示す外観図であって、上面図（図１(a) ）、正面図（図１(b) ）、及び右側面図（図１(c) ）である。
【図２】 他の方法で位置決めピンを配置した光学台の構成を示す外観図であって、上面図（図２(a) ）、正面図（図２(b) ）、及び右側面図（図２(c) ）である。
【図３】 本実施の形態１による光モジュールの構成を示す外観図であって、上面図（図３(a) ）、正面図（図３(b) ）、及び右側面図（図３(c) ）である。
【図４】 光ファイバ間を双方の側面のレンズ作用を利用して光結合した光導波路の構成を示す図であり、斜視図（図４(a) ）、図４(a) のＡ矢示図（図４(b) ）、及び図４(a) のＢ矢示図（図４(c) ）である。
【図５】 図４の光導波路の解析モデルを示す模式図である。
【図６】 図４の光導波路のパラメータαに対する結合効率ηを示すグラフ図である。
【図７】 図４の光導波路のクラッドの屈折率ｎ_c に対するパラメータαを示すグラフ図である。
【図８】 図４の光導波路のクラッド半径に対する比で表した光ファイバ間隔Ｄに対するパラメータαを示すグラフ図である。
【図９】 光配線をＵ字状に引き回すことが可能な光導波路の構成を示す図であって、斜視図（図９(a) ），図９(a) のＡ矢示図（図９(b) ），及び図９(a) のＢ矢示図（図９(c) ）である。
【図１０】 光ビームを合分波可能な光導波路の構成を示す図であって、斜視図（図１０(a) ），図１０(a) のＡ矢示図（図１０(b) ），及び図１０(a) のＢ矢示図（図１０(c) ）である。
【図１１】 本発明の実施の形態２による光モジュールの構成を示す外観図であって、上面図（図１１(a) ）、正面図（図１１(b) ）、及び右側面図（図１１(c) ）である。
【図１２】 本発明の実施の形態３による光モジュールの構成を示す外観図であって、上面図（図１２(a) ）、正面図（図１２(b) ）、及び右側面図（図１２(c) ）である。
【図１３】 本発明の実施の形態４による光モジュールの構成を示す外観図であって、上面図（図１３(a) ）、正面図（図１３(b) ）、及び右側面図（図１３(c) ）である。
【図１４】 本発明の実施の形態５による光モジュールの構成を示す外観図であって、上面図（図１４(a) ）、正面図（図１４(b) ）、及び右側面図（図１４(c) ）である。
【図１５】 図１４の光モジュールに用いるジャンパ部材の他の構成を示す斜視図である。
【図１６】 本発明の実施の形態６による光モジュールの構成を示す外観図であって、上面図（図１６(a) ）、正面図（図１６(b) ）、及び右側面図（図１６(c) ）である。
【図１７】 本発明の実施の形態７による光モジュールの構成を示す外観図であって、上面図（図１７(a) ）、正面図（図１７(b) ）、及び右側面図（図１７(c) ）である。
【図１８】 本発明の実施の形態８による光モジュールの構成を示す外観図であって、上面図（図１８(a) ）、正面図（図１８(b) ）、及び右側面図（図１８(c) ）である。
【符号の説明】
１ コア、２ クラッド、１００ ロッドレンズ、１０１ 半板部、１０２ 半円部、２０１ 基台、２０１ａ，２０６ａ，２０９ａ，２１５ａ 部品配設面、２０２ 位置決めピン、２０３ 集光レンズ、２０４ レンズの中心軸、２０６，２０９ 基板、２０７ 光接続ピン、２０７ａ 第１の光接続ピン、２０７ｂ 第２の光接続ピン、２０８ 光配線、２１０ 電極ピン、２１０ａ 第１の電極ピン、２１０ｂ 第２の電極ピン、２１０ｃ 第３の電極ピン、２１１ 電気配線、２１２ 電極ピン接触用電極、２１３ 半導体レーザ、２１４ レーザ光出射孔の中心軸、２１５ チップ、２１６ 光電子回路、３０１ レンズアレイ、３０１ａ，３０２ａ，３０３ａ 嵌合孔、３０２ レーザアレイ、３０３ ジャンパ部材、３０３ｂ 嵌合溝、４００ 光学台、４０１ 光配線基板、４０２ ＥＯボード、４０３ ＥＯチップ、Ａｘ 光ファイバの中心軸、Ａｘ１ 第１の光ファイバの中心軸、Ａｘ２ 第２の光ファイバの中心軸、Ａｘ３ 第１の光ファイバ／第２の光ファイバ直交軸、Ａｘ４ 第１の光ファイバの傾斜端面の中心軸、Ａｘ５ 第２の光ファイバの傾斜端面の中心軸、Ａｘ６ ロッドレンズの中心軸、Ａｘ７ 第３の光ファイバの中心軸、Ｃｐ１ 第１の光ファイバの傾斜端面の中心点、Ｃｐ２ 第２の光ファイバの傾斜端面の中心点、ｄ 光ファイバ間隔、Ｆ 傾斜端面、Ｆ１ 第１の光ファイバの傾斜端面、Ｆ２ 第２の光ファイバの傾斜端面、Ｆ３ 第３の光ファイバの傾斜端面、ｎ_c クラッドの屈折率、ｎ_e 等価屈折率、Ｏｆ 光ファイバ、Ｏｆ１ 第１の光ファイバ、Ｏｆ２第２の光ファイバ、Ｏｆ３ 第３の光ファイバ、Ｐ１〜Ｐ３ ポート、Ｒ１ 第１の部品延設領域、Ｒ１ａ 後側の第１の部品延設領域、Ｒ１ｂ 前側の第１の部品延設領域、Ｒ２ 第２の部品延設領域、Ｓ 傾斜端面Ｆ１及び傾斜端面Ｆ３の間隔、Ｓｔ 積層部材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical bench, an optical wiring board, an optoelectronic wiring board, an optoelectronic integrated device, and an optical module, and in particular, an optical bench, an optical wiring board, and an optoelectronic integrated device capable of easily constructing an optical module by stacking optical waveguide members. And an optical module that can be easily constructed by laminating optical waveguide members.
[0002]
[Prior art]
A conventional optical bench is composed of an optical surface plate, on which optical light such as a semiconductor laser and a photodiode, an optical active element, an optical modulator, an optical switch, an optical filter, an optical multiplexer / demultiplexer, a lens, a mirror, and the like An optical system has been constructed by arranging optical components such as passive elements, optical fibers, and optical connectors using a fixed base. At this time, in order to fix the optical fiber, a fixing base having a U-shaped groove or a V-shaped groove formed on the upper surface thereof has been used.
[0003]
[Problems to be solved by the invention]
By the way, an optical computer or the like may be required to arrange a large number of optical fibers closely in parallel. In such a case, the conventional fixing base has a problem in that it is necessary to provide a large number of U-shaped or V-shaped grooves according to the number of optical fibers, and the configuration of the fixing base becomes complicated.
[0004]
In addition, in the previous application (Japanese Patent Application No. 9-161277, unpublished), the applicant improved the disadvantage of the conventional optical fiber optical connection structure that the coupling efficiency was low. We have proposed an optical connection structure that uses the lens action on the side to make optical connections.
[0005]
In this optical connection structure, a 45 ° inclined end face is provided at the end of a cylindrical optical waveguide member having a different refractive index so that light can propagate along its central axis, and the optical waveguide is provided with this inclined end face. When the members are viewed from the direction perpendicular to each other, the centers of both inclined end faces coincide with each other, they intersect at an angle of 90 °, both inclined end faces face in opposite directions, and both have a specific distance. With such a configuration, the light beams traveling along the central axis of one of the optical waveguide members and reflected by the inclined end faces are in a positional relationship where they are twisted by 90 ° relative to each other. Due to the lens action on the side surfaces of the two optical waveguide members, components in two directions orthogonal to each other in the cross-sectional direction of the light beam receive a convergence effect. Therefore, by appropriately selecting the diameter and refractive index of both optical waveguide members, the reflected light beam can be evenly converged in the cross-sectional direction, and the distance between the two optical waveguide members can be set to the other. By setting the inclined end face of the optical waveguide member to a position where the reflected light beam has the same diameter as the diameter of the light propagation portion of the other optical waveguide member, the reflected light beam Can be propagated to the other optical waveguide member. That is, the optical waveguide members can be optically connected with a coupling efficiency of 1. And by applying this optical connection structure, an optical waveguide, an optical multiplexer / demultiplexer, an optical filter, etc. can be constructed.
[0006]
Further, in this optical connection structure, by selecting the spot size, the diameter, and the refractive index of both optical waveguide members, the mutual coupling efficiency can be set to 1 in a state where both are in contact with each other. It is convenient for the wave member to have such a structure and to arrange both of them in a stacked manner.
[0007]
However, in the fixed base having a U-shaped or V-shaped groove used in the conventional optical bench, it is suitable for arranging one layer of the optical waveguide member in one direction, but like this optical connection structure, There is a problem that it is inconvenient to arrange the optical waveguide members to be optically stacked in a direction twisted by 90 °.
[0008]
The present invention has been made to solve the above-described problems. An optical bench, an optical wiring board, an optoelectronic wiring board, which can arrange a large number of optical waveguide members in close contact with each other with a simple configuration, Another object of the present invention is to provide an optical module that can be easily constructed by stacking optical optoelectronic integrated devices and optical waveguide members.
[0009]
The present invention also provides an optical bench, an optical wiring board, an optoelectronic wiring board, an optoelectronic integrated device, and optical connecting optical waveguides that are convenient for stacking optical waveguide members that are optically connected in a 90 ° twisted direction It is an object of the present invention to provide an optical module that can be easily constructed by stacking and stacking in a direction twisted by 90 °.
[0014]
  The present invention (claims)1) Optical wiring board having optical wiring, a main part having a flat component arrangement surface, and a vertical projection to the component arrangement surface of the substrate, the base end of which is a light of the substrate It is made of a material that is optically connected to the wiring and can transmit light. Its cross section is circular and columnar, and its refractive index is varied in the cross section direction so that light can propagate along its central axis. Each of the one or more optical connecting pins and one or more component extending regions that protrude perpendicularly to the component placement surface of the substrate and extend linearly and in a strip shape in a virtual direction on the component placement surface. A plurality of component extending regions are arranged along both side edges so as to be positioned in the width direction, and positioning pins are formed so as to have a constant diameter at least up to a predetermined height. .
[0015]
  The present invention (claims)2The optoelectronic wiring board is provided with an electric wiring and an optical wiring, a main part having a flat part disposition surface, and a base part projecting perpendicularly to the component disposition surface. One or more electrode pins electrically connected to the electrical wiring of the substrate, and projecting perpendicularly to the component placement surface of the substrate, the proximal end of which is optically connected to the optical wiring of the substrate, and light One or more optical connecting pins made of a material capable of transmitting light, having a circular cross section and a columnar shape, and having different refractive indexes in the cross sectional direction so that light can propagate along the central axis, and the substrate Along one side edge of each of the one or more first component extending regions extending perpendicularly to the component placement surface and extending linearly and in a belt-like direction on the component placement surface, A plurality of first component extension regions are arranged so as to be positioned in the width direction, and at least predetermined It is obtained by a positioning pin formed so as to have a constant diameter in summary.
[0016]
  The present invention (claims)3The optoelectronic wiring board is the optoelectronic wiring board (claim).2), The positioning pin is further hypothesized on the component placement surface of the substrate, and is one or more second component extending regions extending linearly and in a strip shape in a direction perpendicular to the first component extending region. A plurality of each of the second component extension regions are arranged along the both side edges so as to be positioned in the width direction.
[0017]
  The present invention (claims)4The optoelectronic wiring board is the optoelectronic wiring board (claim).2Or3)PartThe electrode pins are formed so as to have a constant diameter at least up to the predetermined height.
[0018]
  The present invention (claims)51) an integrated electronic device, an opto-electronic circuit including the optical device, a main body having a flat component arrangement surface formed on the surface thereof, and a projection perpendicular to the component arrangement surface of the main body. One or more electrode pins whose base ends are electrically connected to the optoelectronic circuit of the main body and projecting perpendicularly to the component mounting surface of the main body, and the base end is optically connected to the optoelectronic circuit of the main body And having a refractive index in the direction of the cross section so that the light can propagate along the central axis. Both sides of each of the optical connection pins and one or more first component extending regions that protrude perpendicularly to the component disposition surface of the main body and extend linearly and in a strip shape in a virtual direction on the component disposition surface Each of the first component extending regions can be positioned in the width direction along the edge. To a plurality of arranged, and is obtained by a positioning pin formed so as to have a constant diameter up to at least a predetermined height.
[0019]
  The present invention (claims)6The optoelectronic integrated device is the optoelectronic integrated device (claim).5In the optoelectronic integrated device described above, the positioning pin further includes at least one positioning pin that is hypothesized on the component placement surface of the main body and extends linearly and in a strip shape in a direction perpendicular to the first component extending region. A plurality of each of the second component extending regions are arranged so as to be positioned in the width direction along both side edges of each of the two component extending regions.
[0020]
  The present invention (claims)7The optoelectronic integrated device is the optoelectronic integrated device (claim).5Or6)PartThe electrode pins are formed so as to have a constant diameter at least up to the predetermined height.
[0026]
  The present invention (claims)8The optical module of claim)1An optical waveguide board made of a material that can transmit light, and has a circular cross section and a columnar shape, and a refractive index that is different in the cross section direction so that light can propagate along the central axis. The optical waveguide member is arranged such that an integral number of parts having the same diameter are arranged in a part extending region of a part or all of the optical wiring board in the width direction of one component extending region. One or more layers are arranged, and at least one of the optical waveguide members arranged in the one or more layers and at least one of the optical connection pins are optically coupled.
[0027]
  The present invention (claims)9The optical module of claim)2-4It is made of a material that can transmit light, and its cross section is circular and has a column shape, and its refractive index is different in the cross section direction so that light can propagate along its central axis. An optical waveguide member, and the optical waveguide member has an integer number of parts having the same diameter in the width direction of one component extension region in part or all of the component extension region of the optical wiring board. Thus, one or more layers are arranged, and at least one of the optical waveguide members arranged in one or more layers and at least one of the optical connection pins are optically coupled. .
[0028]
  The present invention (claims)10The optical module of claim)3An optical waveguide board made of a material capable of transmitting light, having a circular cross section and a column shape, and having a different refractive index in the cross section direction so that light can propagate along the central axis. The optical waveguide member is formed in one layer in a part or all of the first component extension region and part or all of the second component extension region of the optoelectronic wiring board. Are arranged such that one or more layers having the same diameter are aligned in the width direction of one component extending region, and the optical waveguide member of the first component extending region disposed one or more layers, and The optical waveguide member in the second component extension region intersects at one or more locations so as to be in phase contact with each other in the height direction, and the optical waveguide member in the first component extension region and the second component extension Two optical waveguide members that are in phase contact with each other at one or more of the intersections with the optical waveguide member in the installation area At least one of the optical waveguide members arranged so as to be optically coupled by utilizing the lens action on the side surface of the optical waveguide, and at least one of the optical waveguide members, and at least one of the optical connection pins are optically coupled. It is supposed to be.
[0029]
  The present invention (claims)11) Of the optical module (claim)9Or10), An optical element array in which one or more optical elements that change the physical quantity of light are arranged in a two-dimensional direction, and the optical element array is the first or the first optical element in which the waveguide member is arranged. It shall be positioned by two or more positioning pins or electrode pins of the optoelectronic wiring board so as to be optically coupled to a predetermined waveguide member of one or more of the second component extending regions It is.
[0030]
  The present invention (claims)12The optical module is the optical module (claim)9~111), an optoelectronic integrated device having an integrated electronic element and an optoelectronic circuit including the optical element is disposed to face the component placement surface of the substrate, and at least one or more electrode pins of the substrate are arranged. Part or all are electrically connected to the optoelectronic circuit of the optoelectronic integrated device, or part or all of one or more optical connection pins of the substrate are optically connected to the optoelectronic circuit of the optoelectronic integrated device. It is intended.
[0031]
  The present invention (claims)13The optical module of claim)5-7It is made of a material that can transmit light, and its cross section is circular and has a column shape, and the refractive index is made different in the cross section direction so that light can propagate along its central axis. An optical waveguide member, and the optical waveguide member has an integer number of parts having the same diameter in the width direction of one component extension region in part or all of the component extension region of the optical wiring board. Thus, one or more layers are arranged, and at least one of the optical waveguide members arranged in one or more layers and at least one of the optical connection pins are optically coupled. .
[0032]
  The present invention (claims)14The optical module of claim)6And an optical waveguide that is made of a material that can transmit light, has a circular cross section and a columnar shape, and has a different refractive index in the cross sectional direction so that light can propagate along the central axis. And the optical waveguide member is formed in one layer in a part or all of the first component extension region and part or all of the second component extension region of the optoelectronic integrated device. Are arranged such that one or more layers having the same diameter are aligned in the width direction of one component extending region, and the optical waveguide member of the first component extending region disposed one or more layers, and The optical waveguide member in the second component extension region intersects at one or more locations so as to be in phase contact with each other in the height direction, and the optical waveguide member in the first component extension region and the second component extension Two optical waveguide members that are in phase contact with each other at one or more of the intersections of the region with the optical waveguide member. At least one of the optical waveguide members arranged so as to be optically coupled using the lens action of the side surface and disposed in one or more layers and at least one of the optical connection pins are optically coupled. It is supposed to be.
[0033]
  The present invention (claims)15) Of the optical module (claim)13Or14), An optical element array in which one or more optical elements that change the physical quantity of light are arranged in a two-dimensional direction, and the optical element array is the first or the first optical element in which the waveguide member is arranged. It shall be positioned by two or more positioning pins or electrode pins of the optoelectronic wiring board so as to be optically coupled to a predetermined waveguide member of one or more of the second component extending regions It is.
[0034]
  The present invention (claims)16) Of the optical module (claim)13~15), An optoelectronic wiring board having an electrical wiring and an optical wiring is disposed so as to face the component placement surface of the main body, and at least a part or all of one or more electrode pins of the main body is the optoelectronic wiring board. Or part or all of one or more optical connection pins of the main body are optically connected to the optical wiring of the optoelectronic wiring board.
[0035]
  The present invention (claims)17) Of the optical module (claim)11Or15), The optical element array includes an optical element having an electrode. The optical element array including the optical element having the electrode is fitted to the positioning electrode pin, and the optical element array is formed on the inner surface thereof. A hole or groove having an electrode connected to the electrode of the element and arranged to contact the fitting electrode pin, and being positioned by fitting the hole or groove with the positioning electrode pin. It is supposed to be.
[0036]
  The present invention (claims)18) Of the optical module (claim)8~17In any of the above, the optical coupling between the optical waveguide member and the optical connection pin is made by utilizing the lens action on both side surfaces.
[0037]
  The present invention (claims)19) Of the optical module (claim)8~18In any of the above optical waveguide members, a part or all of the other optical waveguide members, the optical elements of the optical element array, or the optical waveguide members that are not optically coupled to the optical connection pins are not optically coupled. It is composed of a laminated member having the same shape as the wave member.
[0038]
  The present invention (claims)20The optical module of claim)2~4An optoelectronic wiring board according to claim 1,5~7Any of the optoelectronic integrated devices or claims9~18And a plurality of holes or grooves that fit into the electrode pins of the optoelectronic wiring board, optoelectronic integrated device, or optical module, and electrode pins that fit into the plurality of holes or grooves One or more jumper members that electrically connect the two or more of the electrode pins of the optoelectronic wiring board, optoelectronic integrated device, or optical module are holes or grooves of the one or more jumper members. Are electrically connected via each jumper member.
[0039]
  BookInvention (Claims)21The optical wiring board of the above-mentioned optical wiring board (claim)1), A V-shaped or U-shaped groove is formed on the substrate.
  The present invention (claims)22The optoelectronic wiring board is the optoelectronic wiring board (claim).2), A V-shaped or U-shaped groove is formed on the substrate.
  The present invention (claims)23The optoelectronic integrated device of the above-mentioned optoelectronic wiring board (claim)5), A V-shaped or U-shaped groove is formed on the substrate.
[0040]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 is an external view showing a configuration of an optical bench used for constructing an optical module according to Embodiment 1 of the present invention. FIG. 1 (a) is a top view, FIG. 1 (b) is a front view, FIG. 1 (c) is a right side view.
In the figure, reference numeral 400 denotes an optical bench, which has a positioning pin (parallel holding means) 202 protruding vertically on an upper surface 201a of a base (vertical holding means) 201.
[0041]
The positioning pins 202 have a cylindrical shape with a predetermined diameter, and a plurality (16 in the illustrated example) are arranged in a grid pattern in the left-right direction and the front-rear direction on the upper surface 201a of the base. The positioning pin 202 may be made of a material having sufficient strength, and is made of resin, metal, or the like.
[0042]
The base 201 has, for example, a rectangular parallelepiped shape, and the upper surface 201a constitutes a component arrangement surface. The base 201 may be made of a material having sufficient strength, and is made of resin, metal, or the like.
[0043]
In addition, a plurality of positioning pins 202 arranged in a lattice form form a virtual strip region R1 in contact with the adjacent positioning pin group between the positioning pin groups extending in the left-right direction, and the positioning pin group extending in the front-rear direction Between the adjacent positioning pin groups, a virtual strip region R2 is formed, and the strip regions R1 and R2 respectively correspond to the first component extension region and the second component extension region. Constitute.
[0044]
These first and second component extending regions R1 and R2 are formed in the width direction by two pairs of positioning pins 202 positioned in pairs on both sides of the first and second component extending regions R1 and R2. The position is determined (positioned in the width direction). Therefore, when two positioning pins 202 are arranged on both sides of the component extension regions R1 and R2 as shown in FIG. 1, at least four and two directions are required to form a component extension region in one direction. It is necessary to form at least four parts extending regions so as to overlap each other.
[0045]
Further, the ratio of the distance between the positioning pins 202 in the front-rear direction (the width of the first component extending region R1) and the interval in the left-right direction (the width of the second component extending region R2) is set to 3: 2, for example. Has been.
[0046]
As will be described later, the distance between the positioning pins 202 is set according to the number of optical fibers to be arranged in the first component extending region R1 and the second component extending region R2 and the number of dummy laminated members. Is done. Further, as described above, the positioning pins 202 may be alternately arranged on both sides of the component extending regions R1 and R2 instead of being arranged in pairs on both sides of the component extending regions R1 and R2. This is shown in FIG.
[0047]
2A and 2B are external views showing the configuration of an optical bench in which positioning pins are arranged by another method. FIG. 2A is a top view, FIG. 2B is a front view, and FIG. 2C is a right side. FIG.
2, the same reference numerals as those in FIG. 1 denote the same or corresponding parts, and FIG. 2 is different from FIG. 1 in that the positioning pins 202 are arranged in a staggered manner on the component arrangement surface 201a. .
[0048]
When the positioning pins are arranged in a staggered manner in this way, the component extending regions R1 and R2 are positioned in the width direction by the three positioning pins 202 alternately positioned on both sides of the component extending regions R1 and R2. Is done. Therefore, in the case where the positioning pins are alternately arranged on both sides of the component extending regions R1 and R2 in this way, at least three two-way component extending regions are formed to form one component extending region. It is necessary to form at least 4 pieces so as to overlap each other.
[0049]
3A and 3B are external views showing the configuration of the optical module according to the first embodiment. FIG. 3A is a top view, FIG. 3B is a front view, and FIG. 3C is a right side view. .
In the figure, the same reference numerals as those in FIG. 1 denote the same or corresponding parts, and the optical module according to the first embodiment includes the optical bench 400 of FIG. 1, the optical fiber Of, and the laminated member St.
[0050]
The optical fiber Of has a circular cross section with a predetermined diameter and a uniform structure in the longitudinal direction, a core 1 is formed at the center, a clad 2 is formed outside the core 1, and its spot size. The diameter of the clad 2 and the refractive index of the clad 2 are set to values that satisfy a specific condition described later. The optical fiber Of has an inclined end face F inclined by 45 ° with respect to the central axis, and the inclined end face F satisfies the total reflection condition for the light beam propagating through the core 1. .
[0051]
The laminated member St is used as a dummy of the optical fiber Of in order to position the optical fiber Of, and has a cylindrical shape having the same diameter as the optical fiber Of. The material of the laminated member St is not particularly limited. For example, the material of the laminated member St is SiO like the optical fiber Of.₂Etc. Here, of course, the optical fiber Of may be used instead of the laminated member St.
[0052]
In addition, the distance between the positioning pins 202 of the optical bench 400 (the width of each component extending region) is such that the optical fiber Of or the laminated member St is exactly three pieces in the first component extending region R1 and the second component. It is set so that exactly two lines are arranged in the extended region R2. Here, if the number of the optical fibers Of or the laminated members St arranged in the component extension region is too large, it is difficult to align them. For example, optical fibers Of having a diameter of 125 μm, 200 μm, 250 μm, 500 μm, and 1 mm are used. The size of the base 201 is, for example, about 5 mm square to several cm square.
[0053]
Further, the optical fiber Of or the laminated member St disposed at both edges of the component extending regions R1 and R2 is longer than the distance between the positioning pins 202 in the direction of the component extending regions R1 and R2. There is a need.
[0054]
Then, two optical fibers Of and one laminated member St are disposed in the rear first component extending region R1a, and three laminated members St are disposed in the first first component extending region R1b. Two optical fibers Of are disposed in the second component extending region R2 on the right side, and the optical fibers Of are disposed on the optical fiber Of and the laminated member St disposed in the first component extending region R1. And it arrange | positions so that the lamination | stacking member St may be crossed. Accordingly, the optical fiber Of and the laminated member St arranged in this manner are positioned in the width direction of the component extension regions R1 and R2 by the positioning pins 202, and are positioned in the height direction by their own stacked structure. Here, each of the two optical fibers Of arranged in the first component extension region R1 and the two optical fibers Of arranged in the second component extension region R2 is 1 each. Each pair of optical fibers Of is viewed in a direction (vertical direction) perpendicular to both optical fibers Of, and the centers of both inclined end faces F coincide with each other, and both inclined end faces F are in opposite directions. It is arranged to face.
[0055]
The optical fiber Of and the laminated member St arranged in this manner are fixed to the base 201 so as to be partially covered with an adhesive (not shown).
[0056]
Next, the principle of an optical connection structure in which optical fibers are optically coupled using the lens action on both side surfaces will be described with reference to FIGS.
4A and 4B are diagrams showing the configuration of an optical waveguide in which optical fibers are optically coupled using the lens action on both side surfaces. FIG. 4A is a perspective view and FIG. 4B is a diagram in FIG. FIG. 4 (c) is a view shown by an arrow B in FIG. 4 (a). In the figure, the optical waveguide is composed of a first optical fiber Of1 and a second optical fiber Of2, and both the first and second optical fibers Of1, Of2 have a circular cross section and a central axis Ax1. , Ax2 has a linear shape with a constant diameter, one end has inclined end faces F1 and F2 made of mirror surfaces inclined by 45 ° with respect to the central axes Ax1 and Ax2, and the central portion has a predetermined diameter and a central axis direction. And a clad 2 formed on the outside of the core 1.
[0057]
The center Cp2 of the inclined end face F2 of the second optical fiber Of2 is the center Cp1 of the inclined end face F1 of the first optical fiber Of1 of the second optical fiber Of2 with respect to the first optical fiber Of1. The second optical fiber Of2 is positioned on the first optical fiber / second optical fiber orthogonal axis Ax3 orthogonal to the central axis Ax1 of the first optical fiber Of1 so as to sandwich the central axis Ax4 of the inclined end face F1. Of the second optical fiber Of2 is perpendicular to the first optical fiber / second optical fiber orthogonal axis Ax3 so as to sandwich the central axis Ax5 of the inclined end face F2 of the second optical fiber Of2, and the first optical fiber / first optical fiber The crossing angle of 90 ° with respect to the central axis Ax1 of the first optical fiber Of1 when viewed from the direction of the two optical fiber orthogonal axes Ax3, and the inclined end face F1 of the first optical fiber Of1 and the second optical fiber. The inclined end face F2 of the bar Of2 faces in directions opposite to each other when viewed from the first optical fiber / second optical fiber orthogonal axis Ax3 direction, and the second optical fiber Of2 and the first optical fiber Of1 The distance d is set to a specific value described later.
[0058]
The first and second optical fibers Of1, Of2 are made of a material that can transmit light, that is, a dielectric or a semiconductor, for example, SiO.sub.2.₂Is used.
[0059]
The refractive index of the clad 2 is made smaller than the refractive index of the core 1, and the refractive indexes of the core 1 and the clad 2 are first relative to the refractive index of the medium (here, air) around the optical waveguide. , A value sufficiently large to satisfy the total reflection condition at the inclined end faces F1 and F2 of the second optical fibers Of1 and Of2.
[0060]
Further, in order to obtain the inclined end faces F1 and F2 of the first and second optical fibers Of1 and Of2, for example, first, a polishing machine having a polished surface with a rough finished surface is used, and the end of the optical fiber is polished to the polished surface. Then, the surface is polished at an angle of 45 ° to the surface, and then polished in the same manner using a polishing machine having a polished surface with a fine finished surface roughness, and finally the final polishing is performed. Thereby, the inclined end surfaces F1 and F2 which consist of mirror surfaces inclined 45 degrees with respect to the central axis can be obtained.
[0061]
Next, an analysis model of the optical waveguide configured as described above will be described.
FIG. 5 is a schematic diagram showing an analysis model. As shown in the figure, it is assumed that the first optical fiber Of1 and the second optical fiber Of2 are in contact with each other, and a light beam is incident on the first optical fiber Of1 and is emitted from the second optical fiber Of2. And Also, the coordinate axis is taken so that the traveling direction of the incident beam of the first optical fiber Of1 is the x direction and the traveling direction of the outgoing beam of the second optical fiber Of2 is the -y direction. For the sake of simplicity, the Goose Henschen shift is ignored. In the drawing, the diameter of the core 1 is greatly exaggerated for easy understanding.
[0062]
In this case, the light beam incident on the first optical fiber Of1 is totally reflected at the inclined end face F1 of the first optical fiber and the inclined end face F2 of the second optical fiber, and is bent at a right angle. A bent light beam is considered to go straight if the Goose Henschen shift is ignored. At this time, the incident beam (propagation mode) traveling in the x direction and the outgoing beam traveling in the -y direction are both considered to be propagation problems of the mode traveling in the z direction. Accordingly, the connecting portion between the first optical fiber Of1 and the second optical fiber Of2 is provided with a refractive index n of the cladding._cCan be equivalently replaced with the half-plate part 101 and the semi-circular part 102.
[0063]
Next, the coupling efficiency η (hereinafter simply referred to as coupling efficiency η) from the first optical fiber Of1 to the second optical fiber Of2 is obtained. The mode function in a single mode optical fiber can be approximated by a Gaussian function. Here, the spot size (light beam diameter) in the optical fiber is ω, and the light propagating in the optical fiber is converted into the equivalent refractive index n of the core 1._eWhen approximated by a Gaussian beam having a spot size ω propagating in a homogeneous fiber having λ, the ABCD parameter of the ray matrix at the connection between the first optical fiber Of1 and the second optical fiber Of2 is ,
[0064]
[Expression 1]

[0065]
It becomes. Here, a is the radius of the cladding (= radius of the optical fiber).
[0066]
Therefore, the spot size in the first optical fiber Of1 is_A, The spot size in the second optical fiber Of2 is ω_BThen, the ratio ω_A/ Ω_BFrom equation (1)
[0067]
[Expression 2]

[0068]
It becomes. Here, if the wavelength of the light beam is λ, the parameter α is α = πω_A ²/ Λa, which equivalently represents the spot size of the light beam.
[0069]
The coupling efficiency η is
[0070]
[Equation 3]

[0071]
It is expressed.
[0072]
Where the refractive index n of the cladding_cAs a parameter, the relationship between the coupling efficiency η and the parameter α is shown in FIG. In FIG. 6, it can be seen that the coupling efficiency η is the highest in the vicinity where the parameter α is 2, and becomes 1, and the coupling efficiency η decreases as the parameter α further increases.
[0073]
Next, when obtaining the condition that the coupling efficiency η = 1, from the equations (2) and (3),
[0074]
[Expression 4]

[0075]
It becomes.
[0076]
The parameter α in this equation (4) and the refractive index n of the cladding_cThe relationship is shown in FIG.
[0077]
Therefore, from FIG. 6 and FIG. 7, the parameter α and the refractive index n of the clad_cIt can be seen that the coupling efficiency η can be set to 1 by appropriately selecting. Further, the condition for the coupling efficiency η to be 1 is that the equivalent refractive index n of the core 1 is obtained from the equation (4)._e, Refractive index n of clad 2_c, And the parameter α. The parameter α is determined by the spot size ω of the optical fiber, the radius a of the cladding, and the wavelength λ of the light beam. In the above analysis, it is assumed that the medium around the optical waveguide is air. However, when the medium around the optical waveguide is a substance other than air, depending on the refractive index of the medium. The analysis result may be corrected. Therefore, the condition for the coupling efficiency η to be 1 is uniquely determined if the wavelength λ of the incident light beam and the structure of the optical fiber are determined.
[0078]
Next, a case where the first optical fiber Of1 and the second optical fiber Of2 are separated will be described. The distance between the first optical fiber Of1 and the second optical fiber Of2 (hereinafter referred to as the optical fiber distance) is d, and the ratio of the optical fiber distance d to the cladding radius a (hereinafter referred to as the ratio to the cladding radius). When d / a is described as D, and the coupling efficiency η is 1 in the same manner as described above,
[0079]
[Equation 5]

[0080]
It becomes. Therefore, it can be seen that by satisfying the expression (5), the coupling efficiency η can be set to 1 even when the first optical fiber Of1 and the second optical fiber Of2 are separated.
[0081]
In addition, the following condition must be satisfied with respect to the optical fiber distance D expressed by the ratio to the cladding radius from the equation (5).
[0082]
[Formula 6]

[0083]
The relationship between the parameter α in this equation (5) and the optical fiber distance D expressed as a ratio to the cladding radius is expressed by the refractive index n of the cladding._cIs shown as a parameter in FIG. In FIG. 8, an arbitrary refractive index n_cOn the other hand, in a region where the optical fiber distance D expressed by the ratio to the cladding radius is small, there is a parameter α at which the coupling efficiency η is 1, but when the optical fiber distance D expressed by the ratio to the cladding radius is greater than a certain value. In that region, there is no parameter α at which the coupling efficiency η is 1. Therefore, it can be seen that the coupling efficiency η cannot be 1 when the first optical fiber Of1 and the second optical fiber Of2 are separated from each other by a certain distance.
[0084]
Therefore, in the optical waveguide in which the optical fibers are optically coupled using the lens action on both side surfaces, the optical fiber interval d is set so as to satisfy the formula (5). Depending on the wavelength, the spot size ω in the first optical fiber Of1_A, Spot size ω in the second optical fiber Of2_B, Cladding radius a, and cladding refractive index n_cIs appropriately selected so that the distance d between the optical fibers becomes a desired value. Also, the spot size ω in the first and second optical fibers_A, Ω_BCan be changed relatively easily by using a thermal diffusion technique such as the dopant of the core 1.
[0085]
Next, in FIGS. 4 and 5, in the optical waveguide configured as described above, when a light beam having a predetermined wavelength λ is incident on the other end of the first optical fiber Of1, the incident light beam is The spot size ω along the central axis Ax1 at the center of one optical fiber Of1._AAnd is reflected at a central point Cp1 of the inclined end face F1 of the first optical fiber Of1 at an angle of 45 ° with respect to the central axis Ax4 of the inclined end face F1, and the first optical fiber / second optical fiber orthogonal axis It passes along the side surface of the first optical fiber Of1 and the side surface of the second optical fiber Of2 along Ax3, and is 45 ° with respect to the central axis Ax5 of the inclined end surface F2 at the inclined end surface F2 of the second optical fiber Of2. Reflecting at an angle, the center size of the second optical fiber Of2 is spot size ω along the central axis Ax2_BAnd is emitted from the other end of the second optical fiber Of2.
[0086]
At this time, the light beam reflected at the center Cp1 of the inclined end face F1 of the first optical fiber expands in diameter because there is no light confinement structure in the radial direction of the first optical fiber Of1, and this diameter is increased. The light beam having a spread is subjected to a uniform convergence effect in the cross-sectional direction of the light beam by the lens action of the side surfaces of the first and second optical fibers Of1 and Of2, which are in a positional relationship twisted by 90 °. Here, the optical fiber interval d obtained by the analysis based on the above analysis model is obtained by reflecting the light beam whose diameter is expanded by being reflected at the center Cp1 of the inclined end face F1 of the first optical fiber, by the convergence effect. Spot size ω when propagating in the optical fiber Of2_BSince the spacing is such that the center Cp2 of the inclined end face F2 of the second optical fiber is located at a position having the same diameter as that of the second optical fiber, the light beam subjected to the convergence effect is the same as that of the second optical fiber. The spot size ω in the second optical fiber Of2 at the center Cp2 of the inclined end face F2_BAnd the entire light beam reflected by the inclined end face F2 of the second optical fiber is incident on the core 1 of the second optical fiber Of2. Therefore, the coupling efficiency η between the two optical fibers Of1, Of2 is 1.
[0087]
Further, when a light beam having a predetermined wavelength λ is incident on the other end of the second optical fiber Of2, the incident light beam follows a path completely opposite to that described above, and has a coupling efficiency of 1 as described above. The second optical fiber Of2 propagates to the first optical fiber Of1, and is emitted from the other end of the first optical fiber Of1.
[0088]
In the above description, the crossing angle between the first and second optical fibers Of1, Of2 and the first optical fiber / second optical fiber orthogonal axis Ax3, the first optical fiber Of1 and the second optical fiber. The intersection angle with Of2, the inclination angles of the inclined end faces F1 and F2 of each optical fiber, and the optical fiber interval d are assumed to be ideal values. As can be inferred from the graph of FIG. Even if the optical fiber interval d is slightly deviated from the ideal value, the coupling efficiency between the optical fibers does not rapidly decrease. Therefore, each of these angles and the optical fiber interval d can be set to values according to the required coupling efficiency within a range close to the ideal value.
[0089]
Moreover, although the optical fiber which consists of the core 1 and the clad 2 is used as an optical waveguide member, you may use the rod lens which changes a refractive index so that it may become small gradually in the radial direction.
[0090]
As described above, if the optical fibers are optically coupled using the lens action on both side surfaces, highly efficient optical connection becomes possible. In the basic optical connection structure described above, the optical wiring is L-shaped. It becomes possible to draw around.
[0091]
This optical connection structure can be applied in various ways, and the application examples will be described below with reference to FIGS.
9A and 9B are diagrams showing the configuration of an optical waveguide capable of routing optical wiring in a U-shape. FIG. 9A is a perspective view, and FIG. 9B is an A arrow view of FIG. 9A. FIG. 9 (c) is a view shown by an arrow B in FIG. 9 (a). In the figure, the same reference numerals as those in FIG. 4 denote the same or corresponding parts, and this optical waveguide is composed of the first and second optical fibers Of1, Of2 and the rod lens 100 in FIG. The rod lens 100 has a linear shape with a circular cross section and a constant diameter in the direction of the central axis Ax6. For example, the rod lens 100 has the same diameter as the first and second optical fibers Of1, Of2, and is made of the same material. Composed. The refractive index of the rod lens 100 is the same as the refractive index of the clad of the first and second optical fibers Of1, Of2, for example. Further, as the rod lens 100, an optical fiber having the same structure as the first and second optical fibers Of1, Of2 may be used.
[0092]
In the present optical waveguide, the positional relationship between the first optical fiber Of1 and the rod lens 100, and the positional relationship between the rod lens 100 and the second optical fiber Of2, the first optical fiber Of1 and the second light in FIG. This is the same as the positional relationship with the fiber Of2. Accordingly, by setting the distance between the first optical fiber Of1 and the rod lens 100 and the distance between the rod lens 100 and the second optical fiber Of2 in the same manner as the optical fiber distance d in FIG. A light beam can be propagated with a coupling efficiency of 1 between the optical fiber Of1 and the rod lens 100 and between the rod lens 100 and the second optical fiber Of2. Therefore, the optical wiring can be routed in a U shape.
[0093]
10A and 10B are diagrams showing a configuration of an optical waveguide capable of multiplexing and demultiplexing a light beam. FIG. 10A is a perspective view, FIG. 10B is an A arrow view of FIG. c) is an arrow B view of FIG. 10 (a). In the figure, the same reference numerals as those in FIG. 4 denote the same or corresponding parts, and this optical waveguide includes the first and second optical fibers Of1, Of2 in addition to the first and second optical fibers Of1, Of2. A third optical fiber Of3 having the same structure and having an inclined end face F3 inclined at 45 ° with respect to the central axis Ax7 at one end thereof, and the third optical fiber Of3 is connected to the third light The center axis Ax7 of the fiber Of3 coincides with the center axis Ax1 of the first optical fiber, and the inclined end face F3 of the third optical fiber is substantially parallel to the inclined end face F1 of the first optical fiber and has a predetermined value. The point which arrange | positions so that it may have the space | interval S differs from the waveguide of FIG. P1 to P3 indicate first to third ports that are the other ends of the first to third optical fibers Of1 to Of3.
In the optical waveguide configured as described above, when the light beam is incident from the first port P1, the incident light beam is partially inclined at the ratio according to the interval S between the inclined end surface F1 and the inclined end surface F3. F1 and the inclined end face F3 are incident on the third optical fiber Of3, emitted from the third port P3, and the others are reflected by the inclined end face F1 and pass through the second optical fiber Of2, and the second port. It is emitted from P2. As a result, it functions as an optical demultiplexer.
[0094]
On the other hand, when the light beams are respectively incident from the second port P2 and the third port P3, the two incident light beams are combined at the inclined end face F1 of the first optical fiber and are incident on the first optical fiber. Incident light is emitted from the first port P1. As a result, it functions as an optical multiplexer.
Therefore, the present waveguide functions as an optical multiplexer / demultiplexer, and the optical wiring can be routed in a T shape.
[0095]
Further, a wavelength selective filter is inserted in the gap between the inclined end face F1 of the first optical fiber and the inclined end face F2 of the second optical fiber, so that the light beam incident on the first optical fiber Of1 is wavelength-divided. It becomes possible to do.
[0096]
Next, returning to FIG. 3, in the optical module according to the first embodiment, the optical fibers Of respectively disposed in the first and second component extending regions R1 and R2 are connected to the first and second optical components shown in FIG. It corresponds to the optical fibers Of1, Of2, respectively. Further, in place of the first to third optical fibers Of1 to Of3 of FIG. 9 and FIG. 10 and the rod lens 100, the optical fiber Of is formed so that the optical fiber Of forms the positional relationship shown in FIGS. Is disposed in the first and second component extending regions R1 and R2, the waveguide shown in FIGS. 9 and 10 can be constructed. Further, for other application examples of the optical connection structure in which the optical fibers are optically coupled using the lens action on both side surfaces, the optical fiber Of is similarly connected to the first and second component extending regions R1, R2. It is possible to construct by arranging in the.
[0097]
Next, a method for constructing the optical module configured as described above will be described with reference to FIG.
In FIG. 3, in order to construct the present optical module, first, a predetermined inclined end face F is formed at one end of each of the four optical fibers Of, and these are cut into a predetermined length as shown in the figure. Further, the four laminated members St are cut into a predetermined length as shown in the figure.
[0098]
Next, predetermined two optical fibers Of and one laminated member St are disposed in the first component extending region R1a on the rear side of the optical bench 400, and three laminated members are disposed on the first component extending region R1b on the front side. Each member St is arranged. At this time, a guide plate (not shown) is applied to the left ends of all the optical fibers Of and the laminated members St so that the positions in the longitudinal direction are adjusted to a predetermined position. Further, the two optical fibers Of are aligned at an angle in the circumferential direction so that the inclined end face F faces downward.
[0099]
Next, two predetermined optical fibers Of are arranged in the second component extension region R2 on the right side of the optical bench 400 so as to be laminated on the previously arranged optical fiber Of and the laminated member St. At this time, a guide plate (not shown) is applied to the lower ends of the two optical fibers Of so that the positions in the longitudinal direction thereof are changed to the respective optical fibers Of in which the centers of the respective inclined end faces F are arranged first. Align to the center of the inclined end face. Then, the angle in the circumferential direction is adjusted so that the inclined end faces F of the two optical fibers Of face downward.
[0100]
Next, the laminated optical fiber Of and the laminated member St are partially covered with an adhesive (not shown) and fixed.
[0101]
Next, the operation of the optical module configured as described above will be described with reference to FIG. In this optical module, when a light beam is incident on the end of one of the optical fibers Of that does not have the inclined end face, the incident light beam propagates to the corresponding optical fiber Of with a coupling efficiency of 1, and from that end. Emitted.
[0102]
In the above description, the optical fiber Of and the laminated member are arranged in two layers, but they may be arranged in more layers.
[0103]
In the above description, the diameters of the optical fiber Of and the laminated member in each layer are the same, but may be different.
[0104]
In the above description, 16 positioning pins are arranged in a lattice pattern, but a larger number of positioning pins may be arranged, and the first component extending region R1 and the second component extending region R2 may be arranged. Many pairs may be formed by changing the direction.
[0105]
As described above, in the first embodiment, a plurality of cylindrical positioning pins 202 are linearly and vertically extended in two directions perpendicular to each other on the flat component disposition surface 201a of the base 201. Since each of the one or more component extending regions R1 and R2 is protruded vertically so as to be positioned in the width direction along each side edge, the structure is simple and the lens on the side surface of each optical fiber Of It is possible to provide an optical bench capable of easily constructing an optical module having functions such as optical connection and optical multiplexing / demultiplexing that are optically connected by utilizing the action.
[0106]
Further, in the first embodiment, the optical module includes the columnar optical fiber Of having a specific structure and the laminated member St, and the first component extending region R1 and the second component extending region of the optical bench 400. In R2, in one layer, an integer number of parts having the same diameter are arranged in the width direction of one part extending area, parts extending areas in different directions intersect each other, and at the intersection, Since the two optical waveguide members Of in contact with each other are laminated and arranged so as to be optically coupled using the lens action of both side surfaces, the optical fiber Of has an inclined end surface F of 45 °, It is possible to provide an optical module having functions such as optical connection and optical multiplexing / demultiplexing, which can be easily created by laminating the laminated member St together with the longitudinal position and the circumferential angle. .
[0107]
In the first embodiment, since the ratio between the width of the first component extending region R1 and the width of the second component extending region R2 is an integer ratio, the optical fiber Of with the same diameter is used. The optical module can be constructed more easily.
[0108]
Embodiment 2. FIG.
11A and 11B are external views showing the configuration of the optical module according to Embodiment 2 of the present invention. FIG. 11A is a top view, FIG. 11B is a front view, and FIG. 11C is a right side view. It is. In the figure, the same reference numerals as those in FIG. 3 indicate the same or corresponding parts, and the optical module of the second embodiment further includes a lens array (optical element array) 301 as a component. This is different from the optical module of the first embodiment.
[0109]
That is, among the positioning pins 202 of the optical bench 400, the lens array 301 is fitted into four positioning pins (engagement pins) arranged in the front-rear direction at the left end. Then, two layers of the optical fiber Of and the laminated member St are respectively arranged in the portions where the pins other than the positioning pin at the left end of the three first component extending regions R1 of the optical bench 400 are located. In the optical fiber Of and the laminated member St, one optical fiber Of and two laminated members St are respectively arranged so that the three laminated members are positioned in the lower layer and the optical fiber Of is positioned in the upper layer and the center. Has been placed.
[0110]
The lens array 301 includes, for example, a rectangular plate-shaped main body and three condenser lenses (optical elements) 203, and the main body is fitted with the positioning pins 202 in the width direction (height direction). Four holes 301a are formed at the same pitch as the pitch in the front-rear direction of the positioning pins 202, and three condenser lenses 203 are disposed so as to be positioned in the middle of the four formed fitting holes 301a. ing. The condensing lens 203 is disposed so that the central axis 204 of the condensing lens 203 coincides with the central axis Ax of the optical fiber Of disposed in the center of the upper layer in a state where the lens array 301 is fitted into the positioning pin 202. Yes.
[0111]
Next, a construction method of the optical module configured as described above will be described.
In order to construct this optical module, first, the three optical fibers Of and the fifteen laminated members St are cut to a predetermined length as shown in the figure.
[0112]
Next, the three laminated members St are arranged in the three first component extending regions R1 of the optical bench 400 while being aligned in the longitudinal direction, and then overlapped with the arranged three laminated members St. One optical fiber Of and two laminated members St are laminated so that the optical fiber Of is positioned at the center.
[0113]
Next, the lens array 301 is fitted into the four positioning pins 202 at the left end of the optical bench 400.
[0114]
Next, the laminated optical fiber Of, the laminated member St, and the lens array 301 are each partially covered with an adhesive (not shown) and fixed.
[0115]
Next, the operation of the optical module configured as described above will be described.
In the present optical module, the light beam incident on the condenser lens 203 of the lens array 301 is converged by the condenser lens 203 and enters the optical fiber Of.
[0116]
In the above description, the component extension region R1 is formed only in one direction, but may be formed in a number of directions.
[0117]
In the above description, the condensing lens 203 which is an optical passive element is used as the optical element. However, other optical passive elements such as an optical filter, an optical multiplexer / demultiplexer, a lens, and a mirror may be used. Good.
[0118]
As described above, in the second embodiment, a plurality of cylindrical positioning pins 202 are provided on a flat component arrangement surface 201a of the base 201, and a component extending region R1 that extends linearly and in a strip shape in a certain direction. Since each of the optical fibers Of and the laminated member St are stacked in the component extending region R1 so as to be positioned in the width direction so as to be positioned in the width direction, The fiber Of is positioned in the width direction and the height direction. Further, since a plurality of positioning pins 202 are projected for lens array positioning perpendicularly to the component arrangement surface 201, the lens array can be positioned with the lens array positioning positioning pins (engagement pins). Therefore, the condensing lens 203 and the optical fiber Of can be optically connected by arranging the lens array 301 and laminating the optical fibers Of while aligning them in the longitudinal direction. As a result, it is possible to provide an optical bench having a simple structure and capable of easily constructing an optical circuit.
[0119]
In the second embodiment, the lens array 301 in which the condensing lens 203 is arranged in a two-dimensional direction is used to place the condensing lens 203 in each component extending region R1 with the plurality of positioning pins 202 of the optical bench 400. It is positioned so that the predetermined optical fiber Of and the laminated member St are in the component extension region R1 where the condenser lens 203 is located, and the number of the same diameter in the width direction of one component extension region R1 is just an integer. Since the lens arrays 301 are arranged so as to be optically coupled to the condensing lenses 203 corresponding to the optical fibers Of, the lens array 301 is fitted into the positioning pins 202, and the optical fibers Of together with the laminated members St are arranged in the longitudinal direction. By stacking while aligning, an optical module that can easily construct an optical circuit can be provided.
[0120]
Embodiment 3 FIG.
12 is an external view showing the configuration of the optical module according to Embodiment 3 of the present invention. FIG. 12 (a) is a top view, FIG. 12 (b) is a front view, and FIG. 12 (c) is a right side view. It is.
[0121]
In the figure, the same reference numerals as those in FIG. 3 denote the same or corresponding parts, and the optical module according to the third embodiment includes an optical wiring substrate 401, an optical fiber Of, and a laminated member St.
[0122]
The optical wiring board 401 has positioning pins 202 and optical connection pins 207 protruding vertically on a flat main surface 206a of a substrate 206 having an optical wiring 208.
[0123]
The relationship between the arrangement of the positioning pins 202 and the distance between the positioning pins 202 and the diameters of the optical fiber Of and the laminated member St is the same as that of the optical bench 400 of FIG.
[0124]
The optical connection pin 207 is made of, for example, an optical fiber having the same diameter and the same structure as the optical fiber Of. The optical connection pin 207 has an inclined end surface that is the same as the inclined end surface F of the optical fiber Of at the distal end. Connected. The optical connection pin 207 has a central axis positioned at the center in the width direction of the first component extension region R1, the inclined end surface F faces the width direction (rear in the illustrated example), and the center of the inclined end surface F Is arranged so as to coincide with the height of the central axis of the optical fiber Of arranged in the second layer.
[0125]
And in each 1st component extension area | region R1 of this optical wiring board 401, two layers of optical fiber Of are arrange | positioned with the lamination | stacking member St, and these two layers of optical fiber Of and lamination | stacking member St are three layers in the lower layer. One optical fiber Of and two laminated members St are arranged so that the laminated member is positioned on the upper layer and the optical fiber Of is positioned on the front side. In the optical fiber Of, the inclined end face F faces the width direction (front in the illustrated example) of the first component extending region R1, and the center of the inclined end face F is viewed from the width direction of the optical connecting pin 207. It arrange | positions so that it may correspond to the center of the inclination end surface F. FIG. As a result, the optical fiber Of and the optical connection pin 207 have the same positional relationship as the optical connection structure described in the first embodiment in which the optical fibers are optically coupled using the lens action on both side surfaces. It has become.
[0126]
The optical fiber Of and the laminated member St arranged in a stacked manner are fixed with an adhesive (not shown).
[0127]
Next, a construction method of the optical module configured as described above will be described.
In order to construct this optical module, first, the three optical fibers Of and the fifteen laminated members St are cut to a predetermined length as shown in the figure.
[0128]
Next, the three laminated members St are arranged in the three first component extension regions R1 of the optical wiring board 401 while being aligned in the longitudinal direction, and then overlapped with the arranged three laminated members St. In addition, one optical fiber Of and two laminated members St are laminated and disposed such that the optical fiber Of is positioned on the front side. The optical fiber Of is further adjusted in the circumferential angle so that the inclined end face F faces the front.
[0129]
Next, the optical fiber Of and the laminated member St arranged in layers are partially covered with an adhesive and fixed.
[0130]
Next, the operation of the optical module configured as described above will be described.
In this optical module, when a light beam is incident on the optical fiber Of, the incident light beam propagates to the corresponding optical connection pin 207 with a coupling efficiency of 1 and propagates to the optical wiring 208 of the substrate 206. Conversely, the light beam from the optical wiring 208 is propagated to the optical fiber Of via the optical connection pin 207 with a coupling efficiency of 1 and emitted from the end thereof.
[0131]
As described above, in the third embodiment, an optical connection pin connected to the optical wiring 208 of the substrate 206 and having the same structure as the optical fiber Of is formed on the flat component arrangement surface 206a of the substrate 206 having the optical wiring 208. 207 is vertically projected, and a plurality of cylindrical positioning pins 202 are vertically projected so that they can be positioned in the width direction along each side edge of each of the one or more component extending regions R1. Therefore, the optical fiber Of and the optical connection pin 207 are optically utilized by using the lens action on both side surfaces by arranging the optical fiber Of together with the laminated member St while adjusting the position in the longitudinal direction and the angle in the circumferential direction. Since they can be connected, an optical wiring board capable of easily connecting the optical wiring 208 to the outside with a simple configuration can be provided.
[0132]
Further, in the third embodiment, the optical fiber Of and the laminated member St having a specific structure are exactly the same in the component extending region R1 of the optical wiring board 401 and in the width direction of the component extending region R1. Since the integer number of optical fibers Of and the optical connection pins 207 are laminated so as to be optically coupled using the lens action on both side surfaces, the optical fibers Of together with the laminated members St and their longitudinal positions and By laminating while adjusting the angle in the circumferential direction, it is possible to provide an optical module capable of easily performing external optical wiring on the optical wiring board.
[0133]
Embodiment 4 FIG.
13A and 13B are external views showing the configuration of the optical module according to Embodiment 4 of the present invention. FIG. 13A is a top view, FIG. 13B is a front view, and FIG. 13C is a right side view. It is. In the figure, the same reference numerals as those in FIGS. 3 and 12 denote the same or corresponding parts. The optical module according to the fifth embodiment includes an EO board (optoelectronic wiring board) 402, an optical fiber Of, and a laminated member St. And a laser array (optical element array) 302.
[0134]
In the EO board 402, a positioning pin 202, an optical connection pin 207, and an electrode pin 210 project vertically on a flat main surface (component arrangement surface) 209a of a substrate 209 having an optical wiring 208 and an electrical wiring 211. Being done.
[0135]
The electrode pin 210 has the same shape as the positioning pin 202, and the electrode pin 210 includes a first electrode pin 210a and a second electrode pin 210b, and the base end of the first electrode pin 210a. , And the base ends of the second electrode pins 210b are connected to, for example, a positive terminal and a negative terminal (not shown) of the electric wiring 211 of the substrate 209, respectively. The first electrode pins 210a and the second electrode pins 210b are alternately arranged in the front-rear direction, and the electrode pins 210 and the positioning pins 202 are arranged so that the electrode pins 210 are positioned at the left end. Are arranged in a grid pattern.
[0136]
The relationship between the distance between the positioning pins 202 and the electrode pins 210 and the diameter of the optical fiber Of and the laminated member St is the relationship between the distance between the positioning pins 202 and the diameter of the optical fiber Of and the laminated member St in the optical bench 400 of FIG. Is the same.
[0137]
The optical connecting pin 207 has a central axis at a position in the width direction of the first component extending region R1 at a position of the central axis of the rear laminated member St disposed in the first component extending region R1. The optical connection pins 207 of the optical wiring board 401 in FIG.
[0138]
The laser array 302 is inserted into the four electrode pins 210 of the EO board 402. In addition, two layers of the optical fiber Of and the laminated member St are respectively disposed in the portions where the positioning pins 202 are positioned in the three first component extending regions R1 of the EO board 402. In the laminated member St, one laminated optical fiber Of and two laminated members St are arranged so that three laminated members are positioned in the lower layer and the optical fiber Of is positioned in the upper layer in the center. And the said optical fiber Of and the optical connection pin 207 have the optical connection structure which carried out the optical coupling using the lens effect | action of both side surfaces similarly to FIG.
[0139]
The laser array 302 includes, for example, a rectangular plate-shaped main body and three semiconductor lasers (optical elements) 213. The main body has a fitting hole 302a that fits the electrode pin 210 in the width direction. Four semiconductor lasers 213 are arranged at the same pitch as the pitch in the front-rear direction 210, and are positioned in the middle of the four fitting holes 302a. An electrode pin contact electrode 212 is disposed on the inner surface of the fitting hole 302a so as to be in contact with the electrode pin 210 to be fitted, and the electrode pin contact electrode 212 is a positive electrode or a negative electrode of the semiconductor laser 213 (see FIG. (Not shown). The positional relationship between the center axis 214 of the laser beam emission hole (not shown) of the semiconductor laser 213 and the center axis Ax of the optical fiber Of is such that the central axis 204 of the condenser lens 203 of the lens array of FIG. The positional relationship with the central axis Ax is the same.
[0140]
The optical fiber Of, the laminated member St, and the laser array 302 arranged in a stacked manner are fixed with an adhesive (not shown).
[0141]
Next, a construction method of the optical module configured as described above will be described.
In order to construct this optical module, first, the three optical fibers Of and the fifteen laminated members St are cut to a predetermined length as shown in the figure.
[0142]
Next, the three laminated members St are arranged in the three first component extending regions R1 of the EO board 402 while being aligned in the longitudinal direction, and then overlapped with the arranged three laminated members St. One optical fiber Of and two laminated members St are stacked and disposed such that the optical fiber Of is positioned on the rear side. The optical fiber Of is further adjusted in the circumferential angle so that the inclined end face F faces the front.
[0143]
Next, the laser array 302 is fitted into the four electrode pins 210 of the EO board 402.
[0144]
Next, the laminated optical fiber Of and the laminated member St, and the inserted and arranged laser array 302 are partially covered with an adhesive (not shown) and fixed.
[0145]
Next, the operation of the optical module configured as described above will be described.
In this optical module, the semiconductor laser 213 of the laser array 302 is supplied with power from the electrical wiring 211 of the EO board 402 via the electrode pin 210 and the electrode pin contact electrode 212. When the semiconductor laser 213 emits laser light in response to this power supply, the emitted laser light is incident on the optical fiber Of and is then propagated to the optical connection pin 207 of the EO board 402 with a coupling efficiency of 1. Then, it is propagated to the optical wiring 208.
[0146]
In the above description, the semiconductor laser 213 is used as an optical element having an electrode. However, an optical active element having an electrode such as a photodiode and an optical passive element having an electrode such as an optical modulator are used. Also good.
[0147]
As described above, in the fourth embodiment, the electrode pin 210 connected to the electric wiring 211 of the substrate 209, the substrate, on the flat component arrangement surface 209a of the substrate 209 having the electric wiring 211 and the optical wiring 208, and the substrate The optical connection pins 207 connected to the optical wiring 208 of 209 protrude vertically, and a plurality of cylindrical positioning pins 202 are extended to one or more first parts extending linearly and in a strip shape in a certain direction. Since each of the regions R1 protrudes vertically along both side edges so as to be positioned in the width direction, the optical fiber Of is laminated together with the laminated member St in the component extending region R1 with a simple configuration. The optical wiring 208 can be easily connected to the outside, and the electrode pins 210 are used for positioning the laser array 302 and are passed through the electrode pins 210. It is possible to provide a EO board capable of establishing the optoelectronic circuits easily by adapted to power the semiconductor laser 213 of the laser array 302.
[0148]
Further, in the fourth embodiment, the optical fiber Of and the laminated member St having a specific structure are the same in the component extending region R1 of the EO board and having the same diameter in the width direction of one component extending region R1. Since an integer number of the optical fibers Of and the optical connection pins 207 are stacked so as to be optically connected by using the lens action on both side surfaces, the optical fibers Of together with the stacked members St and the positions in the longitudinal direction thereof are arranged. By laminating while adjusting the angle in the circumferential direction, an optical module capable of easily performing external optical wiring of the EO board and constructing an optoelectronic circuit can be provided.
[0149]
Embodiment 5 FIG.
14A and 14B are external views showing the configuration of the optical module according to Embodiment 5 of the present invention. FIG. 14A is a top view, FIG. 14B is a front view, and FIG. 14C is a right side view. It is.
[0150]
In the figure, the same reference numerals as those in FIG. 13 denote the same or corresponding parts, and the optical module according to the fifth embodiment includes an EO board 402 and a jumper member 303.
[0151]
The EO board 402 has a positioning pin 202 and an electrode pin 210 protruding vertically on a flat main surface (component arrangement surface) 209a of a substrate 209 having an optical wiring 208 and an electric wiring 211.
[0152]
These electrode pins 210 and positioning pins 202 are the same as the electrode pins 210 and 210 in FIG. 13 except that the base ends of the four electrode pins 210 are connected to different terminals (not shown) of the electric wiring 211 of the substrate 209, respectively. This is the same as the positioning pin 202.
[0153]
The jumper member 303 is made of a conductive material, and a plurality of (two in the illustrated example) perforation holes 303 a that fit the electrode pins 210 are formed at the same pitch as the pitch in the front-rear direction of the electrode pins 210.
[0154]
Two jumper members 303 are inserted into the four electrode pins 210 of the EO board 402. Thereby, the two electrode pins 210 fitted to each jumper member 303 are electrically connected by each jumper member 303.
[0155]
In the above description, the jumper member 303 has the fitting hole 303a. However, instead of this, as shown in FIG. It is good also as what has the joint groove 303b.
[0156]
Thus, in the fifth embodiment, since the electrode pin 210 of the EO board 402 is electrically connected by the jumper member 303 fitted to the electrode pin 210, the jumper member 303 is connected to the electrode pin 210. It is possible to provide an optical module capable of easily performing external electrical wiring of the EO board 402 simply by fitting.
[0157]
Embodiment 6 FIG.
16 is an external view showing the configuration of the optical module according to Embodiment 6 of the present invention. FIG. 16 (a) is a top view, FIG. 16 (b) is a front view, and FIG. 16 (c) is a right side view. It is.
[0158]
In the figure, the same reference numerals as those in FIG. 12 denote the same or corresponding parts, and the optical module according to the sixth embodiment includes an EO chip (optoelectronic integrated device) 403, an optical fiber Of, and a laminated member St. .
[0159]
The EO chip 403 includes a positioning pin 202 and an optical connection pin 207 protruding vertically on a flat upper surface (component arrangement surface) 215a of a chip 215 having an optoelectronic circuit 216, and the positioning pin 202 and the optical connection pin. The arrangement of 207 is the same as the arrangement of the positioning pins 202 and the optical connection pins 207 of the optical wiring board 401 in FIG. 12 except that the base ends of the optical connection pins 207 are optically connected to the optoelectronic circuit 216. .
[0160]
The optical fiber Of and the laminated member St are laminated and arranged on the component arrangement surface 215a of the EO chip 403 in exactly the same manner as the optical module of FIG.
[0161]
Therefore, according to the sixth embodiment, as in the third embodiment, it is possible to provide an EO chip that can easily connect the optical wiring 208 to the outside with a simple configuration.
[0162]
Further, according to the sixth embodiment, similarly to the third embodiment, the optical fiber Of is laminated together with the laminated member St while adjusting the position in the longitudinal direction and the angle in the circumferential direction. An optical module capable of performing external optical wiring can be provided.
[0163]
Embodiment 7 FIG.
17 is an external view showing the configuration of the optical module according to Embodiment 7 of the present invention. FIG. 17 (a) is a top view, FIG. 17 (b) is a front view, and FIG. 17 (c) is a right side view. It is.
[0164]
In the figure, the same reference numerals as those in FIG. 13 denote the same or corresponding parts, and the optical module according to the seventh embodiment includes an EO chip 403, an optical fiber Of, a laminated member St, and a laser array 302. .
[0165]
The EO chip 403 includes a positioning pin 202, an optical connection pin 207, and an electrode pin 210 protruding vertically on a flat upper surface (component arrangement surface) 215a of a chip 215 having an optoelectronic circuit 216. The positioning pin 202, the optical connection pin 207, and the electrode pin 210 are arranged such that the base end of the optical connection pin 207 is optically connected to the optoelectronic circuit 216, and the base end of the electrode pin 210 is electrically connected to the optoelectronic circuit 216. Except for these points, the arrangement of the positioning pins 202, the optical connection pins 207, and the electrode pins 210 of the EO board 402 in FIG.
[0166]
The optical fiber Of, the laminated member St, and the laser array are arranged on the component arrangement surface 215a of the EO chip 403 in exactly the same manner as the optical module shown in FIG.
[0167]
Therefore, according to the seventh embodiment, as in the fourth embodiment, the optical fiber 208 is laminated together with the laminated member St in the component extending region R1, and the optical wiring 208 is easily connected to the outside with a simple configuration. In addition, it is possible to easily construct an optoelectronic circuit by using the electrode pins 210 for positioning the laser array 302 and supplying power to the semiconductor laser 213 of the laser array 302 through the electrode pins 210. An EO chip capable of being provided can be provided.
[0168]
Further, according to the seventh embodiment, as in the fourth embodiment, the optical fiber Of is laminated together with the laminated member St while adjusting the position in the longitudinal direction and the angle in the circumferential direction, thereby easily making the EO chip 403. It is possible to provide an optical module capable of performing external optical wiring and constructing an optoelectronic circuit.
[0169]
Embodiment 8 FIG.
18 is an external view showing the configuration of an optical module according to Embodiment 8 of the present invention. FIG. 18 (a) is a top view, FIG. 18 (b) is a front view, and FIG. 18 (c) is a right side view. It is. Here, FIG. 18A shows a state in which the chip is removed.
In the figure, the same reference numerals as those in FIGS. 13 and 16 denote the same or corresponding parts. In the optical module of the eighth embodiment, the components are arranged on the EO board 402 and the component arrangement surface 209a of the EO board 402. The EO chip 403 is disposed so that the installation surface 215 a faces each other, the optical fiber Of disposed on the component disposition surface 209 a of the EO board 402, the laminated member St, and the laser array 302.
[0170]
The EO board 402 has the same structure as the first and second electrode pins 210a and 210b in the four positions of the positioning pins 202 in the EO board 402 of FIG. A long electrode pin is used as the third electrode pin 210c, and the optical connection pin 207 is left as the first optical connection pin 207a except for those located on the front side and the rear side. In the EO chip 403, the optoelectronic circuit 216 is electrically connected to the tip of the third electrode pin 210a of the EO board 402, and is further located at the center of the optical connection pins 207 in the EO board 402 of FIG. The second optical connection pin 207 having the same structure as that of the optical connection pin 207 and having a base end optically connected to the optoelectronic circuit 216 at a position corresponding to The has. Here, an electrode hole (not shown) having an electrode connected to the optoelectronic circuit 216 is provided on the inner surface of the component placement surface 215a of the EO chip 403 at a position corresponding to the third electrode pin 210c. The third electrode pin 210c of the EO board is inserted into the electrode hole, so that the third electrode pin 210c is connected to the optoelectronic circuit 216. Further, the EO board 402 and the EO chip 403 are detachable by positioning means and fixing means (not shown).
[0171]
The optical fiber Of disposed in the central first component extension region is optically connected to the second optical connection pin 207b of the EO chip 403 by using the lens action on both sides. Similarly to the optical module 13, the optical fiber Of, the laminated member St, and the laser array 302 are arranged on the component arrangement surface 209 a of the EO board 402.
[0172]
Next, the operation of the optical module configured as described above will be described.
In this optical module, the semiconductor laser 213 of the laser array 302 is fed from the electrical wiring 211 of the EO board 402 and emits laser light. The laser beams emitted from the front and rear semiconductor lasers 213 of the laser array 302 are incident on the front and rear optical fibers Of, and light passes through the first optical connection pins 207a of the EO board 402, respectively. Propagated to the wiring 208. The laser light emitted from the central semiconductor laser 213 of the laser array 302 is incident on the central optical fiber Of and propagates to the optoelectronic circuit 216 through the second optical connection pin 207b of the EO chip 403. Further, the electrical wiring 211 of the EO board 402 and the optoelectronic circuit 209 of the EO chip 403 are electrically connected.
[0173]
As described above, in the eighth embodiment, in the optical module of the fourth embodiment, the EO chip 403 is disposed so as to face the component placement surface 209a of the substrate 209, and at least the electrode pin 210c of the substrate 209 is provided. Since it is assumed that it is electrically connected to the optoelectronic circuit 216 of the EO chip 403, an optical module capable of easily constructing a desired optical wiring or optoelectronic circuit between the EO board 402 and the EO chip 403 is provided. be able to.
[0174]
In the eighth embodiment, since a part of the positioning pin 202 is configured by the electrode pin 210c having the same shape, the positioning pin 202 can be saved.
[0175]
In the second, third, fourth, sixth, seventh, and eighth embodiments, the optical fiber Of and the laminated member St are disposed only in the first component extending region R1, but as in the first embodiment. The optical fiber Of and the laminated member St may also be arranged in the second component extension region R2 so that desired optical fibers are optically connected using the lens action on both side surfaces. Also, one optical fiber thus optically connected using the lens action on both side surfaces and the optical elements 203 and 213 or the optical connection pins 207 of the optical element arrays 301 and 302 are connected to both side surfaces. An optical connection may be made using the lens action.
[0176]
In the fourth, seventh, and eighth embodiments, the electrode pins 210 may be added and electrically connected using the jumper member 303 as in the fifth embodiment.
[0177]
In the eighth embodiment, the EO board 402 and the EO chip 403 may be connected by the optical connection pin 207.
[0178]
In the eighth embodiment, the positioning pin 202 may be disposed on the EO chip 403 instead of the EO board 402, and the optical fiber Of and the laminated member St may be disposed on the EO chip 403 side.
[0179]
Moreover, in the said Embodiment 1-8, although the positioning pin 202 or the electrode pin 210 is made into the column shape, these should just have a fixed diameter to the height which is going to laminate | stack the optical fiber Of and the laminated member St, The shape of the tip does not matter. Further, the cross section is not limited to a circle, and may be a quadrangle, a triangle, or the like.
[0180]
In the second, fourth, seventh, and eighth embodiments, the optical element arrays 301 and 302 have the fitting holes 301a and 302a. However, like the jumper member 303 shown in FIG. It is good also as what has a shape-like fitting groove 302b. Further, although the optical element arrays 301 and 302 are fitted into the positioning pins 202 or the electrode pins 210, they may be positioned by being inserted between the positioning pins 202 or the electrode pins 210.
[0181]
In the sixth, seventh and eighth embodiments, an EO chip is used. This is an example of an optoelectronic integrated device having a flat component arrangement surface. For example, instead of the EO chip, for example, A package in which an EO chip is arranged at the center of a fixing member such as a frame, and bonding pads connected to the EO chip and bonding wires are arranged around the periphery, and a flat component arrangement surface is provided on a part of the fixing member. You may use what has.
[0182]
In the first to eighth embodiments, the laminated optical fiber Of, the laminated member St, and the optical element arrays 301 and 302 are fixed with an adhesive. However, for example, the positioning pin 202 and the electrode pin 210 are fixed. You may make it fix by pressing down with the holding plate which has a fitting hole.
[0183]
In the second embodiment, one positioning pin 202 (engagement pin) for fixing the lens array 301 is provided, and the cross-sectional shape of the engagement pin and the fitting hole 301a of the lens array 301 is irregular (triangular). The lens array 301 may be positioned with a single engagement pin.
[0184]
In the third, fourth, sixth, seventh, and eighth embodiments, the optical waveguide member Of and the optical connection pin 207 may be optically connected by an optical connector.
[0185]
Further, in the first to eighth embodiments, instead of the positioning pins 202 (parallel direction holding means) located on one side of the component extending regions R1 and R2, for example, positioning is performed with the V grooves of the fixing base having the V grooves. Other parallel direction holding means such as the optical fiber Of may be used. Even in this case, since the positioning pin 202 on the other side is used as the parallel direction holding means, a large number of optical fibers can be closely arranged in parallel with a simple configuration.
[0190]
  Claims1According to the invention, optical connection pins connected to the optical wiring of the substrate and having the same structure as the optical waveguide member are vertically provided on the flat component arrangement surface of the substrate having the optical wiring, and up to a predetermined height. A plurality of locating pins having a constant diameter are vertically projected so that they can be positioned in the width direction along both side edges of each of one or more component extending regions extending linearly and in a strip shape in a certain direction. Therefore, using a cylindrical optical waveguide member that is longer than the interval between the positioning pins, the width of the component extending region is set in advance so that an integer number of optical waveguide members are arranged in advance, and the optical waveguide member is stacked on the component extending region. By doing so, each waveguide member is positioned in the width direction and the height direction, and the waveguide member and the optical connection pin are positioned so as to be twisted by 90 ° relative to each other. For this reason, the waveguide member and the optical connection pin have a specific structure having an inclined end surface of 45 °, and when the waveguide member is laminated in the component extension region, the inclined end surface of the laminated waveguide member And the inclined end face of the optical connection pin are set to have a specific positional relationship, the waveguide members are laminated as described above, and the guiding position can be obtained simply by adjusting the position in the longitudinal direction and the angle in the circumferential direction. Provided is an optical wiring board capable of optically coupling a wave member and an optical connecting pin by utilizing the lens action on both side surfaces, and as a result, capable of easily connecting an optical wiring to the outside with a simple configuration. be able to. Also, an optical wiring that can easily construct an optical circuit by further arranging a positioning pin on the component arrangement surface so as to form another component extension region perpendicular to the component extension region. A substrate can be provided.
[0191]
  Claims2According to this invention, the electrode pin connected to the electric wiring of the substrate and the optical connection pin connected to the optical wiring of the substrate are vertically placed on the flat component arrangement surface of the substrate having the electric wiring and the optical wiring. A plurality of positioning pins projectingly provided and having a constant diameter up to a predetermined height are arranged to extend the width of each of the one or more first component extending regions extending linearly and in a certain direction along each side edge. Since the optical waveguide member is stacked in the component extension region, the optical wiring can be easily connected to the outside with a simple configuration, and the electrode pin is attached to the outside. An optical circuit can be easily constructed by using the optical element array for positioning, and an optoelectronic circuit can be easily constructed by supplying power to the optical elements of the optical element array through the electrode pins. It is possible to provide an optoelectronic circuit board capable.
[0192]
  Claims3According to the invention of claim2In the invention described above, the positioning pins are further extended along the side edges of each of the one or more second component extending regions extending linearly and in a strip shape in a direction perpendicular to the first component extending region. Since the optical waveguide members are arranged so that they can be positioned in the direction, the optical waveguide members are stacked so as to intersect with each other in the component extension regions with different directions, so that the optical connection, optical multiplexing / demultiplexing, etc. using the lens action on the side surface It is possible to easily construct an optical circuit having the above function.
[0193]
  Claims4According to the invention of claim2Or3In the invention of the above, one of the positioning pinsPartSince the electrode pins are formed so as to have a constant diameter at least up to the predetermined height, positioning pins can be saved.
[0194]
  Claims5According to the invention, the electrode component pin electrically connected to the optoelectronic circuit of the main body and the optical connection pin optically connected to the optoelectronic circuit of the main body are vertically projected on the flat component arrangement surface of the main body. And positioning a plurality of positioning pins having a constant diameter up to a predetermined height along both side edges of each of the one or more first component extending regions extending linearly and in a certain direction in a width direction. Since the optical waveguide member is laminated in the component extension region, the optoelectronic circuit can be optically easily connected to the outside with a simple configuration, and the electrodes can be positioned. An optical circuit can be easily constructed by using the pins for positioning the optical element array, and the optoelectronic circuit can be easily connected to an external wiring by connecting electrode pins with jumper members. It is possible to provide an optoelectronic integrated apparatus capable.
[0195]
  Claims6According to the invention of claim5In the invention described above, the positioning pins are further extended along the side edges of each of the one or more second component extending regions extending linearly and in a strip shape in a direction perpendicular to the first component extending region. Since the optical waveguide members are arranged so that they can be positioned in the direction, the optical waveguide members are stacked so as to intersect with each other in the component extension regions with different directions, so that the optical connection, optical multiplexing / demultiplexing, etc. using the lens action on the side surface It is possible to easily construct an optical circuit having the above function.
[0196]
  Claims7According to the invention of claim5Or6In the invention of the above, one of the positioning pinsPartSince the electrode pins are formed so as to have a constant diameter at least up to the predetermined height, positioning pins can be saved.
[0202]
  Claims8According to the invention, an optical waveguide member having a columnar shape with a specific structure is provided in a part or all of the component extension region of the optical wiring board according to claim 5 with the same diameter in the width direction of one component extension region. Since one or more layers are stacked so that the optical waveguide members and the optical connection pins are optically coupled to each other, the optical waveguide members are stacked and optically connected to the optical connection pins. It is possible to provide an optical module capable of easily performing external optical wiring on the optical wiring board thus formed.
[0203]
  Claims9According to the invention, an optical waveguide member having a columnar shape with a specific structure is provided.2-4An integer of just the same diameter is arranged in the width direction of one component extension region in a part or all of the component extension region of any one of the optoelectronic circuit boards, and the optical waveguide member and the optical connection pin are optically connected. Since one or more layers are laminated so as to be coupled, the optical waveguide member is laminated, and optical connection with the optical connection pin can be performed to easily perform external optical wiring of the optoelectronic wiring boards arranged in parallel. Modules can be provided.
[0204]
  Claims10According to the invention, the cylindrical optical waveguide member having a specific structure is claimed.3In the first component extending region and the second component extending region of the optoelectronic wiring board, just one integer of the same diameter is arranged in the width direction of one component extending region in one layer, and the directions are different. The parts extending in the direction intersect each other, and two or more optical waveguide members that are in phase contact with each other at some or all of the intersections are optically coupled by using the lens action on both side surfaces, and at least one optical waveguide Since one or more layers are laminated so that the member and at least one optical connection pin are optically coupled, the optical waveguide member has an inclined end surface of 45 °, and is provided with a longitudinal position and a circumferential angle. Optical modules that can be easily connected to the optical waveguide board and can be easily constructed by connecting the optical waveguide members and the optical connection pins together by optically connecting the optical waveguide members and the optical connection pins. To provide It can be.
[0205]
  Claims11According to the invention of claim9Or10In this invention, the optical element array in which the optical elements are arranged in a two-dimensional direction is positioned with a plurality of positioning pins of the optoelectronic wiring board so that the optical elements are located in a part or all of the component extension regions, and the optical Since the wave member is arranged so as to be optically coupled with the corresponding optical element, the optical element array is arranged by being fitted into the positioning pin, and the optical waveguide member is laminated while being aligned in the longitudinal direction. Furthermore, an optical module capable of easily obtaining an optical circuit can be provided.
[0206]
  Claims12According to the invention of claim9~11In any of the inventions, the optoelectronic integrated device is disposed so as to face the component placement surface of the substrate, and at least a part or all of one or more electrode pins of the substrate are electrically connected to the optoelectronic circuit of the optoelectronic integrated device. Since a part or all of one or more optical connection pins of the substrate are optically connected to the optoelectronic circuit of the optoelectronic integrated device, it is desired to connect between the optoelectronic wiring board and the optoelectronic integrated device. It is possible to provide an optical module capable of easily constructing an optical wiring or an optoelectronic circuit.
[0207]
  Claims13According to the invention, an optical waveguide member having a columnar shape with a specific structure is provided.5-7An integer of just the same diameter is aligned in the width direction of one component extension region in a part or all of the component extension region of any one of the optoelectronic integrated devices, and the optical waveguide member and the optical connection pin are optically connected. Since one or more layers are laminated so as to be coupled, the optical waveguide member and the optical connection pin have an inclined end surface of 45 °, and the optical waveguide member is laminated while adjusting the position in the longitudinal direction and the angle in the circumferential direction. Thus, an optical module capable of easily performing external optical wiring of the optoelectronic integrated device can be provided.
[0208]
  Claims14According to the invention, the cylindrical optical waveguide member having a specific structure is claimed.6In the first component extension region and the second component extension region of the optoelectronic integrated device of FIG. 2, in one layer, just one integer having the same diameter is aligned in the width direction of one component extension region, and the directions are different. The parts extending in the direction intersect each other, and two or more optical waveguide members that are in phase contact with each other at some or all of the intersections are optically coupled by using the lens action on both side surfaces, and at least one optical waveguide Since one or more layers are laminated so that the member and at least one optical connection pin are optically coupled, the optical waveguide member has an inclined end surface of 45 °, and is provided with a longitudinal position and a circumferential angle. Optical modules capable of easily constructing an optical connection between optical waveguide members by allowing external optical wiring of an optoelectronic integrated device to be easily performed by stacking together and aligning optical waveguide members and optical connection pins. To provide It can be.
[0209]
  Claims15According to the invention of claim13Or14In the invention, the optical element array in which the optical elements are arranged in a two-dimensional direction is positioned with the plurality of positioning pins of the optoelectronic integrated device so that the optical elements are located in a part or all of the component extending regions, and the optical Since the wave member is arranged so as to be optically coupled with the corresponding optical element, the optical element array is arranged by being fitted into the positioning pin, and the optical waveguide member is laminated while being aligned in the longitudinal direction. Furthermore, an optical module capable of easily obtaining an optical circuit can be provided.
[0210]
  Claims16According to the invention of claim13~15In any of the inventions, the optoelectronic wiring board is disposed so as to face the component placement surface of the main body, and at least a part or all of one or more electrode pins of the main body are electrically connected to the electric wiring of the optoelectronic wiring board. Since a part or all of one or more optical connection pins of the main body are optically connected to the optical wiring of the optoelectronic wiring board, it is desired to connect between the optoelectronic integrated device and the optoelectronic wiring board. It is possible to provide an optical module capable of easily constructing an optical wiring or an optoelectronic circuit.
[0211]
  Claims17According to the invention of claim11Or15In the invention, the optical element array includes an optical element having an electrode, and the optical element array having the electrode has an electrode for contact with an electrode pin connected to the electrode of the optical element on the inner surface. Since the hole or groove is positioned by fitting it with the positioning electrode pin, the optical element array is inserted into the predetermined positioning electrode pin, and the optical waveguide member is laminated between the positioning pins. As a result, an optical module capable of easily constructing an optoelectronic circuit can be provided.
[0212]
  Claims18According to the invention of claim8~17In any of the inventions, since the optical coupling between the optical waveguide member and the optical connection pin is formed by utilizing the lens action on both side surfaces, the optical waveguide member and the optical connection pin are inclined by 45 °. Easily connect an optical wiring board, optoelectronic wiring board, or optoelectronic integrated device to external optical wiring by stacking optical waveguide members while adjusting the position in the longitudinal direction and the angle in the circumferential direction. It is possible to provide an optical module that can be performed in the same manner.
[0213]
  Claims19According to the invention of claim8~18In any one of the optical waveguide members, a part or all of the optical waveguide member that is not optically coupled to another optical waveguide member, the optical element of the optical element array, or the optical connection pin among the optical waveguide members is not optically coupled. Therefore, the optical waveguide member can be saved.
[0214]
  Claims20According to the invention of claim2~4An optoelectronic wiring board according to claim 15~7An optoelectronic integrated device according to claim 1 or claim9~18Any one of the optical module and a plurality of holes or grooves that fit into the electrode pins of the optoelectronic wiring board, the optoelectronic integrated device, or the optical module, and the electrode pins that fit into the plurality of holes or grooves One or more jumper members that electrically connect the two or more electrode pins of the optoelectronic wiring board, the optoelectronic integrated device, or the optical module, the holes or grooves of the one or more jumper members Since it is electrically connected through each jumper member by fitting, the desired electrical wiring of the optoelectronic wiring board, the optoelectronic integrated device, or the optical module can be obtained simply by inserting the jumper member into the electrode pin. As a result, an optical module capable of easily performing electrical wiring can be provided.
[Brief description of the drawings]
FIG. 1 is an external view showing a configuration of an optical bench used for constructing an optical module according to Embodiment 1 of the present invention, and is a top view (FIG. 1 (a)) and a front view (FIG. 1 (b)). ) And a right side view (FIG. 1 (c)).
FIG. 2 is an external view showing a configuration of an optical bench in which positioning pins are arranged by another method, and is a top view (FIG. 2 (a)), a front view (FIG. 2 (b)), and a right side view ( FIG. 2 (c)).
3 is an external view showing the configuration of the optical module according to the first embodiment, and is a top view (FIG. 3A), a front view (FIG. 3B), and a right side view (FIG. 3 c)).
FIG. 4 is a diagram showing a configuration of an optical waveguide in which optical fibers are optically coupled using the lens action on both side surfaces, and is a perspective view (FIG. 4 (a)) and an arrow A in FIG. 4 (a). It is a figure (FIG.4 (b)) and the B arrow figure of FIG.4 (a) (FIG.4 (c)).
5 is a schematic diagram showing an analysis model of the optical waveguide of FIG. 4. FIG.
6 is a graph showing the coupling efficiency η with respect to the parameter α of the optical waveguide shown in FIG. 4;
7 is a refractive index n of the clad of the optical waveguide of FIG._cIt is a graph which shows parameter (alpha) with respect to.
8 is a graph showing a parameter α with respect to an optical fiber interval D expressed as a ratio to the cladding radius of the optical waveguide of FIG. 4;
FIG. 9 is a diagram showing a configuration of an optical waveguide capable of routing optical wiring in a U-shape, and is a perspective view (FIG. 9 (a)) and an arrow A view in FIG. 9 (a) (FIG. 9). (b)), and B arrow figure of FIG. 9 (a) (FIG. 9 (c)).
FIG. 10 is a diagram showing a configuration of an optical waveguide capable of multiplexing and demultiplexing a light beam, and is a perspective view (FIG. 10 (a)) and an arrow A view in FIG. 10 (a) (FIG. 10 (b)). And FIG. 10 (a) is an arrow B view (FIG. 10 (c)).
11 is an external view showing a configuration of an optical module according to Embodiment 2 of the present invention, and is a top view (FIG. 11 (a)), a front view (FIG. 11 (b)), and a right side view (FIG. 11). 11 (c)).
12 is an external view showing the configuration of an optical module according to Embodiment 3 of the present invention, and is a top view (FIG. 12 (a)), a front view (FIG. 12 (b)), and a right side view (FIG. 12). 12 (c)).
13 is an external view showing the configuration of an optical module according to Embodiment 4 of the present invention, and is a top view (FIG. 13 (a)), a front view (FIG. 13 (b)), and a right side view (FIG. 13). 13 (c)).
14 is an external view showing a configuration of an optical module according to Embodiment 5 of the present invention, and is a top view (FIG. 14 (a)), a front view (FIG. 14 (b)), and a right side view (FIG. 14). 14 (c)).
15 is a perspective view showing another configuration of a jumper member used in the optical module of FIG.
16 is an external view showing the configuration of an optical module according to Embodiment 6 of the present invention, and is a top view (FIG. 16 (a)), a front view (FIG. 16 (b)), and a right side view (FIG. 16). 16 (c)).
17 is an external view showing a configuration of an optical module according to a seventh embodiment of the present invention, and is a top view (FIG. 17 (a)), a front view (FIG. 17 (b)), and a right side view (FIG. 17). 17 (c)).
18 is an external view showing a configuration of an optical module according to an eighth embodiment of the present invention, and is a top view (FIG. 18 (a)), a front view (FIG. 18 (b)), and a right side view (FIG. 18). 18 (c)).
[Explanation of symbols]
1 core, 2 clad, 100 rod lens, 101 half plate part, 102 half circle part, 201 base, 201a, 206a, 209a, 215a component placement surface, 202 positioning pin, 203 condenser lens, 204 central axis of lens 206, 209 Substrate, 207 Optical connection pin, 207a First optical connection pin, 207b Second optical connection pin, 208 Optical wiring, 210 Electrode pin, 210a First electrode pin, 210b Second electrode pin, 210c Third electrode pin, 211 Electrical wiring, 212 Electrode for electrode contact, 213 Semiconductor laser, 214 Center axis of laser light emission hole, 215 chip, 216 Optoelectronic circuit, 301 Lens array, 301a, 302a, 303a Fitting hole, 302 Laser array, 303 Jumper member, 303b Fitting groove, 400 Gakudai, 401 Optical wiring board, 402 EO board, 403 EO chip, Ax optical fiber central axis, Ax1 first optical fiber central axis, Ax2 second optical fiber central axis, Ax3 first optical fiber / Second optical fiber orthogonal axis, Ax4 central axis of the inclined end face of the first optical fiber, Ax5 central axis of the inclined end face of the second optical fiber, central axis of the Ax6 rod lens, Ax7 central axis of the third optical fiber , Cp1 center point of the inclined end face of the first optical fiber, Cp2 center point of the inclined end face of the second optical fiber, d optical fiber spacing, F inclined end face, F1 inclined end face of the first optical fiber, F2 second Inclined end face of optical fiber, F3 Inclined end face of third optical fiber, n_c  The refractive index of the cladding, n_e  Equivalent Refractive Index, Of Optical Fiber, Of1 First Optical Fiber, Of2 Second Optical Fiber, Of3 Third Optical Fiber, P1-P3 Port, R1 First Component Extension Region, R1a Rear First Component extending region, R1b Front first component extending region, R2 Second component extending region, S Spacing between inclined end surface F1 and inclined end surface F3, St laminated member.

Claims (23)

An optical wiring board for stacking a plurality of optical members to form an optical system,
A substrate having optical wiring and having a flat component arrangement surface on its main surface;
Protruding perpendicularly to the component mounting surface of the substrate, the base end of which is optically connected to the optical wiring of the substrate and made of a material that can transmit light, and the cross section is circular and has a column shape One or more optical connection pins having different refractive indexes in the cross-sectional direction so that light can propagate along the central axis;
Protruding perpendicularly to the component placement surface of the substrate and extending along both side edges of each of the one or more component extension regions extending linearly and in a strip in a direction virtually imagined on the component placement surface An optical wiring board comprising: a plurality of positioning pins arranged so that each of the extended regions can be positioned in the width direction and having a fixed diameter at least up to a predetermined height. An optoelectronic wiring board for stacking a plurality of optical members and electronic members to form an optical system,
A substrate having electrical wiring and optical wiring and having a flat component arrangement surface on the main surface;
One or more electrode pins projecting perpendicularly to the component placement surface of the substrate, the base end of which is electrically connected to the electrical wiring of the substrate;
Protruding perpendicularly to the component mounting surface of the substrate, the base end of which is optically connected to the optical wiring of the substrate and made of a material that can transmit light, and the cross section is circular and has a column shape One or more optical connection pins having different refractive indexes in the cross-sectional direction so that light can propagate along the central axis;
Along each side edge of each of the one or more first component extending regions that protrude perpendicularly to the component placement surface of the substrate and extend linearly and in a strip shape in a direction virtually imagined on the component placement surface. And a plurality of positioning pins which are arranged so as to be positioned in the width direction and have a constant diameter at least up to a predetermined height. Optoelectronic wiring board. The optoelectronic wiring board according to claim 2 ,
The positioning pin is further imaginary on the component placement surface of the substrate, and each of the one or more second component extending regions extending linearly and in a strip shape in a direction perpendicular to the first component extending region. An optoelectronic wiring board, wherein a plurality of the second component extending regions are arranged along both side edges so as to be positioned in the width direction. In the optoelectronic wiring board according to claim 2 or 3 ,
The one part of the positioning pin, an optoelectronic circuit board characterized by comprising consists of the electrode pin formed so as to have a constant diameter at least up to the predetermined height. An optoelectronic integrated apparatus for stacking a plurality of optical members and electronic members to form an optical system,
An optoelectronic circuit including an integrated electronic element and an optical element, and a main body having a flat component arrangement surface formed on the surface;
One or more electrode pins protruding perpendicularly to the component placement surface of the main body, the base end of which is electrically connected to the optoelectronic circuit of the main body;
Protruding perpendicularly to the component mounting surface of the main body, the base end of which is optically connected to the optoelectronic circuit of the main body and made of a material capable of transmitting light, and has a circular cross section and a column shape One or more optical connection pins having different refractive indexes in the cross-sectional direction so that light can propagate along the central axis;
Along each side edge of each of the one or more first component extending regions that protrude perpendicularly to the component arrangement surface of the main body and extend linearly and in a strip shape in a direction virtually imagined on the component arrangement surface. And a plurality of positioning pins which are arranged so as to be positioned in the width direction and have a constant diameter at least up to a predetermined height. Optoelectronic integrated device. The optoelectronic integrated device according to claim 5 .
The positioning pin is further imaginary on the component placement surface of the main body, and each of the one or more second component extension regions extending linearly and in a strip shape in a direction perpendicular to the first component extension region. An optoelectronic integrated device comprising a plurality of second component extending regions arranged along both side edges so as to be positioned in the width direction. The optoelectronic integrated device according to claim 5 or 6 ,
Part of the positioning pin is at least the predetermined optoelectronic integrated apparatus characterized by comprising consists of formed the electrode pin so as to have a constant diameter up to a height. An optical wiring board according to claim 1 ;
An optical waveguide member made of a material capable of transmitting light, having a circular cross section and a columnar shape, and having a different refractive index in the cross sectional direction so that light can propagate along the central axis;
One or more layers of the optical waveguide member are arranged in the part extending region of a part or all of the optical wiring board so that an integer number of members having the same diameter are arranged in the width direction of one component extending region. And
An optical module comprising at least one optical waveguide member among the optical waveguide members arranged in one or more layers and at least one optical connection pin. The optoelectronic wiring board according to any one of claims 2 to 4 ,
An optical waveguide member made of a material capable of transmitting light, having a circular cross section and a columnar shape, and having a different refractive index in the cross sectional direction so that light can propagate along the central axis;
One or more layers of the optical waveguide member are arranged in the part extending region of a part or all of the optical wiring board so that an integer number of members having the same diameter are arranged in the width direction of one component extending region. And
An optical module comprising at least one optical waveguide member among the optical waveguide members arranged in one or more layers and at least one optical connection pin. An optoelectronic wiring board according to claim 3 ;
An optical waveguide member made of a material capable of transmitting light, having a circular cross section and a columnar shape, and having a different refractive index in the cross sectional direction so that light can propagate along the central axis;
The optical waveguide member has one component extending in one layer in a part or all of the first component extending region and part or all of the second component extending region of the optoelectronic wiring board. One or more layers are arranged so that an integer number of the same diameter is aligned in the width direction of the installation area,
The optical waveguide member in the first component extension region and the optical waveguide member in the second component extension region, which are arranged in one or more layers, intersect so that they are in phase contact with each other in one or more locations. And
Two optical waveguide members that are in phase contact with each other at one or more of the intersections of the optical waveguide member in the first component extension region and the optical waveguide member in the second component extension region are lenses on both side surfaces. Arranged to be optically coupled using the action,
An optical module comprising at least one optical waveguide member among the optical waveguide members arranged in one or more layers and at least one optical connection pin. The optical module according to claim 9 or 10 ,
An optical element array in which one or more optical elements that change the physical quantity of light are arranged in a two-dimensional direction;
In the optical element array, the optoelectronic wiring is arranged such that the optical element is optically coupled to a predetermined waveguide member of one or more of the first or second component extending regions where the waveguide member is disposed. An optical module characterized by being positioned by two or more positioning pins or electrode pins on a substrate. The optical module according to any one of claims 9 to 11 ,
An optoelectronic integrated device having an optoelectronic circuit including an integrated electronic element and an optical element is disposed so as to face the component placement surface of the substrate,
At least a part or all of one or more electrode pins of the substrate is electrically connected to an optoelectronic circuit of the optoelectronic integrated device, or a part or all of one or more optical connection pins of the substrate is the optoelectronic integrated device. An optical module that is optically connected to the optoelectronic circuit. An optoelectronic integrated device according to any one of claims 5 to 7 ;
An optical waveguide member made of a material capable of transmitting light, having a circular cross section and a columnar shape, and having a different refractive index in the cross sectional direction so that light can propagate along the central axis;
One or more layers of the optical waveguide member are arranged in the part extending region of a part or all of the optical wiring board so that an integer number of members having the same diameter are arranged in the width direction of one component extending region. And
An optical module comprising at least one optical waveguide member among the optical waveguide members arranged in one or more layers and at least one optical connection pin. An optoelectronic integrated device according to claim 6 ;
An optical waveguide member made of a material capable of transmitting light, having a circular cross section and a columnar shape, and having a different refractive index in the cross sectional direction so that light can propagate along the central axis;
The optical waveguide member has one component extending in one layer in a part or all of the first component extension region and part or all of the second component extension region of the optoelectronic integrated device. One or more layers are arranged so that an integer number of the same diameter is aligned in the width direction of the installation area,
The optical waveguide member in the first component extending region and the optical waveguide member in the second component extending region, which are arranged in one or more layers, intersect so that they are in phase contact with each other in one or more locations. ,
Two optical waveguide members that are in phase contact with each other at one or more of the intersections of the optical waveguide member in the first component extension region and the optical waveguide member in the second component extension region are lenses on both side surfaces. Arranged to be optically coupled using the action,
An optical module comprising at least one optical waveguide member among the optical waveguide members arranged in one or more layers and at least one optical connection pin. The optical module according to claim 13 or 14 ,
An optical element array in which one or more optical elements that change the physical quantity of light are arranged in a two-dimensional direction;
In the optical element array, the optoelectronic wiring is arranged such that the optical element is optically coupled to a predetermined waveguide member of one or more of the first or second component extending regions where the waveguide member is disposed. An optical module characterized by being positioned by two or more positioning pins or electrode pins on a substrate. The optical module according to any one of claims 13 to 15 ,
An optoelectronic wiring board having electrical wiring and optical wiring is disposed so as to face the component placement surface of the main body,
At least some or all of the one or more electrode pins of the main body are electrically connected to the electrical wiring of the optoelectronic wiring board, or some or all of the one or more optical connection pins of the main body are the optoelectronic wiring board. An optical module characterized by being optically connected to the optical wiring. The optical module according to claim 11 or 15 ,
The optical element array comprises an optical element having an electrode,
An optical element array composed of optical elements having the electrodes is fitted to the electrode pins for positioning, and electrodes arranged on the inner surface thereof so as to be in contact with the electrode pins to be fitted are connected to the electrodes of the optical elements. An optical module comprising a hole or a groove and having the hole or groove positioned by fitting the hole or groove with the electrode pin for positioning. The optical module according to any one of claims 8 to 17 ,
An optical module characterized in that the optical coupling between the optical waveguide member and the optical connecting pin is made by utilizing the lens action on both side surfaces. The optical module according to any one of claims 8 to 18 ,
Among the optical waveguide members, a part or all of the other optical waveguide members, the optical elements of the optical element array, or the optical waveguide members that are not optically coupled to the optical connection pins have the same shape as the optical waveguide members that are not optically coupled. An optical module comprising a laminated member. The optoelectronic wiring board according to any one of claims 2 to 4, the optoelectronic integrated device according to any one of claims 5 to 7 , or the optical module according to any one of claims 9 to 18 ,
1 or more which has the several hole or groove | channel fitted to the said electrode pin of the said optoelectronic wiring board, an optoelectronic integrated device, or an optical module, and electrically connects the electrode pins fitted to this some hole or groove | channel With a jumper member
Two or more of the electrode pins of the optoelectronic wiring board, optoelectronic integrated device, or optical module are electrically connected via the respective jumper members by fitting with the holes or grooves of the one or more jumper members. An optical module characterized by being connected. The optical wiring board according to claim 1 ,
Having V-shaped or U-shaped grooves on the substrate;
An optical wiring board characterized by that. The optoelectronic wiring board according to claim 2 ,
Having V-shaped or U-shaped grooves on the substrate;
An optical wiring electronic board characterized by the above. The optoelectronic integrated device according to claim 5 .
Having V-shaped or U-shaped grooves on the substrate;
An optoelectronic integrated device.

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