JPH02125209A - Optical waveguide and optical fiber coupling structure - Google Patents
Optical waveguide and optical fiber coupling structureInfo
- Publication number
- JPH02125209A JPH02125209A JP63278471A JP27847188A JPH02125209A JP H02125209 A JPH02125209 A JP H02125209A JP 63278471 A JP63278471 A JP 63278471A JP 27847188 A JP27847188 A JP 27847188A JP H02125209 A JPH02125209 A JP H02125209A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- optical
- optical waveguide
- grooves
- coupling structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 87
- 239000013307 optical fiber Substances 0.000 title claims abstract description 80
- 230000008878 coupling Effects 0.000 title claims abstract description 22
- 238000010168 coupling process Methods 0.000 title claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 22
- 239000000758 substrate Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 10
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 241000283986 Lepus Species 0.000 description 1
- 229910003327 LiNbO3 Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/30—Optical coupling means for use between fibre and thin-film device
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は光導波路・光ファイバ結合構造に関し、特に詳
細には、光導波路基体上に形成された光導波路と先ファ
イバとの間の位置決め調整を不用にした光導波路・光フ
ァイバ結合構造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an optical waveguide/optical fiber coupling structure, and more particularly, to positioning adjustment between an optical waveguide formed on an optical waveguide substrate and a destination fiber. This invention relates to an optical waveguide/optical fiber coupling structure that eliminates the need for optical waveguides and optical fibers.
近年、光導波路を利用して、光（３号を直接処理する方
法が開発されてきている。そして、この様な光導波路に
光信号を人力したり、またこの光導波路から光信号を取
り出すためには光導波路の端面に光ファイバを位置決め
して固定しておく必要がある。In recent years, methods for directly processing light (No. 3) using optical waveguides have been developed. It is necessary to position and fix the optical fiber to the end face of the optical waveguide.
このような位置決め固定方法としては、第６図に示すよ
うな方法がある。例えば第６図（ａ）に示す方法では、
光ファイバ１及び光導波路基体２をそれぞれ微動台上（
図示せず）に固定し、相対的に３軸方向に動かしながら
光ファイバ１と光導波路信号入出力端部２ａ間の調心を
行い、光信号の伝達損失が最小となる位置をさがし、そ
の位置で樹脂３等により互いに固定している。As such a positioning and fixing method, there is a method as shown in FIG. For example, in the method shown in FIG. 6(a),
The optical fiber 1 and the optical waveguide base 2 are each placed on a fine movement table (
(not shown), align the optical fiber 1 and the optical waveguide signal input/output end 2a while moving them in three axial directions relatively, find the position where the transmission loss of the optical signal is minimum, and then They are fixed to each other by resin 3 or the like at the position.
また、第６図（ｂ）に示す方法では、光ファイバ１ ａ
、１ ｂ−１ｃｌｌ ｄを互いに平行に、光導波路４の
光信婦人出力端部間隔と同じに、かつ光ファイバ１ａ等
の光軸長手方向（Ｚ軸方向）の端面を正確に位置決めし
た状態でコネクタ部材５に固定する。その後、このコネ
クタ部材５を光導波路基体２に対して当接させ、相対的
に２軸方向に動かして調心を行った後、このコネクタ部
材５と光導波路基体２とを固定している。Furthermore, in the method shown in FIG. 6(b), the optical fiber 1 a
, 1b-1cll d are parallel to each other, the distance between the optical fiber output ends of the optical waveguide 4 is the same, and the end face of the optical fiber 1a etc. in the longitudinal direction of the optical axis (Z-axis direction) is accurately positioned. It is fixed to member 5. Thereafter, the connector member 5 is brought into contact with the optical waveguide base 2 and aligned by relatively moving in two axial directions, and then the connector member 5 and the optical waveguide base 2 are fixed.
更に、第６図（ｃ）に示す方法では、光ファイバｌａ、
ｌｂ、ｌｃ、ｌｄ、ｌｅを互いに平行に、それらの配列
の間隔を光導波路４の光信婦人出力端部間隔と同じに、
かつ光ファイバ１ａ等の光ファイバ光軸長手方向の端面
を正確に位置決めした状態で所定のコネクタ部材６に固
定する。このコネクタ部材６は図に示すように、上側保
持部６ａと下側保持部６ｂとより構成され、光ファイバ
１８等はこれらの上側保持部６ａと下側保持部６ｂとの
間に挾まれて保持され、かつ上側保持部６ａの下面６ｂ
が光導波路基体２の上面２ｂに当接することにより、光
ファイバ１ａ等を図においてＺ方向に位置決めを行う。Furthermore, in the method shown in FIG. 6(c), the optical fibers la,
lb, lc, ld, and le are arranged parallel to each other, and the spacing between them is the same as the spacing between the optical fiber output ends of the optical waveguide 4.
In addition, the end face of the optical fiber such as the optical fiber 1a in the longitudinal direction of the optical axis is accurately positioned and fixed to a predetermined connector member 6. As shown in the figure, this connector member 6 is composed of an upper holding part 6a and a lower holding part 6b, and the optical fiber 18 etc. is sandwiched between these upper holding part 6a and lower holding part 6b. The lower surface 6b of the upper holding part 6a
comes into contact with the upper surface 2b of the optical waveguide base 2, thereby positioning the optical fiber 1a etc. in the Z direction in the figure.
この固定方法では、光導波路基体２の光導波路４の光信
号入出力端面と先ファイバとの間の調心はＹ方向にのみ
行えばよい。In this fixing method, alignment between the optical signal input/output end face of the optical waveguide 4 of the optical waveguide base 2 and the tip fiber only needs to be performed in the Y direction.
先に説明した従来のいずれの固定方法でも光ファイバと
光導波路の光信号入出力端部間の調心をしなければなら
ず１．この調心には非常に多くの時間が係り、作業効率
が悪くなっていた。In any of the conventional fixing methods described above, it is necessary to align the optical signal input/output ends of the optical fiber and the optical waveguide.1. This alignment took an extremely large amount of time, resulting in poor work efficiency.
具体的には、第６図（ａ）に示す固定方法では３輔ツノ
゛向での調心作業を必要とし、更に、樹脂により光ファ
イバと光導波路基体とを固定１．、ているため経時変化
、温度変化等により、固定した後に調心状聾が崩れてし
まうことがあった。また、第６図（ｂ）に示す例では、
図においてＸ方向の調心作業はあらかじめ成されている
ため、この方向の調心作業は必要ないが、Ｙ及びＺ方向
での調心作業が必要になる。また更に、第６図（Ｃ）に
示す例ではＸ方向の調心はコネクタに固定する際に成さ
れ、Ｚ方向の調心はコネクタの下面を光導波路基体上面
に当接することにより成されているが、Ｙ方向の調心作
業をしなければならない。このように従来のいずれの固
定方法でも、少なくとも一方向での調心作業を必要とし
、その結果光ファイバと光導波路基体を結合する際、作
業効率が悪くなっていた。Specifically, the fixing method shown in FIG. 6(a) requires alignment work in three horn directions, and also fixes the optical fiber and the optical waveguide base using resin. , due to aging, temperature changes, etc., the centric form of the deaf may collapse after it has been fixed. Moreover, in the example shown in FIG. 6(b),
In the figure, since the alignment work in the X direction has been completed in advance, alignment work in this direction is not necessary, but alignment work in the Y and Z directions is required. Furthermore, in the example shown in FIG. 6(C), alignment in the X direction is achieved when fixing to the connector, and alignment in the Z direction is achieved by bringing the bottom surface of the connector into contact with the top surface of the optical waveguide base. However, it is necessary to perform alignment work in the Y direction. As described above, all of the conventional fixing methods require alignment work in at least one direction, resulting in poor work efficiency when coupling the optical fiber and the optical waveguide base.
本発明は上記問題点を解決するため、光ファイバと光導
波路とを結合する際、調心作業を必要としない光ファイ
バ・光導波路結合構造を提供することを目的とする。SUMMARY OF THE INVENTION In order to solve the above problems, it is an object of the present invention to provide an optical fiber/optical waveguide coupling structure that does not require alignment work when coupling an optical fiber and an optical waveguide.
上記課題を達成するため、本発明の光ファイバ・光導波
路結合構造では、所定の間隔で互いに平行に形成された
ガイド溝を有し、端面に光信号の導入出口を有する光導
波路が形成されている光導波路基体と、前記ガイド溝に
係合するガイドピンを白°し、前１；己ガイドピンが前
３己ガイドｉ笥に係合したとき、前記導入出口に光結合
するように光ファイバを保持する光ファイバ保持部材と
を備えることを特徴とする。In order to achieve the above object, in the optical fiber/optical waveguide coupling structure of the present invention, an optical waveguide is formed which has guide grooves formed parallel to each other at predetermined intervals and has an optical signal introduction/exit at the end face. The optical waveguide base body and the guide pin that engages with the guide groove are separated, and when the guide pin engages with the guide groove, the optical fiber is optically coupled to the introduction exit. and an optical fiber holding member that holds the optical fiber.
本発明の光ファイバ・光導波路結合構造では、先に説明
した構造とし、ガイドピンを介して光ファイバと光導波
路基体とを互いに位置決めすることにより、光ファイバ
と光導波路間の調心作業をなくしている。The optical fiber/optical waveguide coupling structure of the present invention has the structure described above, and by positioning the optical fiber and the optical waveguide base relative to each other via guide pins, alignment work between the optical fiber and the optical waveguide can be eliminated. ing.
以下図面を参照しつつ本発明に従う実施例について説明
する。Embodiments according to the present invention will be described below with reference to the drawings.
同一符号を付した要素は同一機能をＨするため重複する
説明は省略する。Elements with the same reference numerals have the same functions, so redundant explanations will be omitted.
第１図は本発明に従う実施例の光ファイバ・光導波路結
合構造の結合前の状態を示す斜視図である。FIG. 1 is a perspective view showing a state before coupling of an optical fiber/optical waveguide coupling structure according to an embodiment of the present invention.
第１図に示すように、本実施例は、光ファイバを保持す
る先ファイバ保持コネクタ１０と光導波路９がその上面
に形成された光導波路基体１１とより構成される。この
光導波路基体１１は例えばＬｉＮｂＯ３の基板を使用し
、Ｔｉ拡散法により光導波路９を形成しである。光導波
路９は光導波路基体１１の端面１１ａ、１１ｂまで伸び
ており、この光導波路９の端面部９８％ ９ ｂ ｓ
９ ｃにおいて光信号が光ファイバから入力したり、ま
た先ファイバへ出力される。そして、光導波路９の光フ
ァイバへの入出力端部９ａ等は、所定のパターンで形成
されている。そして、光導波路９の端面９ａ等は光学研
磨されている。第３図（ａ）にその矢印Ｘ方向より見た
図を示す。その他の部分の光導波路９の形状は本発明と
は直接関係ないので詳細な説明は省略する。As shown in FIG. 1, this embodiment is comprised of a fiber-end holding connector 10 that holds an optical fiber and an optical waveguide base 11 on which an optical waveguide 9 is formed. This optical waveguide base 11 uses, for example, a LiNbO3 substrate, and the optical waveguide 9 is formed by a Ti diffusion method. The optical waveguide 9 extends to the end surfaces 11a and 11b of the optical waveguide base 11, and the end surface portion of the optical waveguide 9 is 98% 9 b s
At 9c, an optical signal is input from the optical fiber and output to the destination fiber. The input/output end 9a of the optical waveguide 9 to the optical fiber, etc. are formed in a predetermined pattern. The end face 9a of the optical waveguide 9 and the like are optically polished. FIG. 3(a) shows a view seen from the direction of arrow X. Since the shape of the other portions of the optical waveguide 9 is not directly related to the present invention, detailed description thereof will be omitted.
更に光導波路基体１１の上面１１ａにはガイドピンが挿
入されるガイドピン用溝１２ａ、１２ｂか形成されてい
る。このガイドピン用溝１２ａ１１２ｂは所定の間隔Ｐ
で互いに平行に形成され、このガイドピン用溝１２ａ、
１２ｂの形成は機械加工、基体のエツチング（例えば、
Ｃ（１４を用いたプラズマエツチング等） 、ＹＡＧレ
ーザ等で形成することができる。このガイドピン用溝１
２ａ、１２ｂは断面がＶ形の溝として第１図及び第３図
（ａ）に示しているが、断面が直方体状の角溝、断面が
弓形状の丸溝であってもよい。また、第１図のＷ方向か
ら光ファイバ保持コネクタ１０を見た図を第３図（ｂ）
に示す。Furthermore, guide pin grooves 12a and 12b into which guide pins are inserted are formed in the upper surface 11a of the optical waveguide base 11. This guide pin groove 12a112b has a predetermined interval P.
These guide pin grooves 12a,
12b can be formed by machining, etching the substrate (e.g.
C (plasma etching using 14, etc.), YAG laser, etc. can be used. This guide pin groove 1
Although 2a and 12b are shown in FIGS. 1 and 3(a) as grooves with a V-shaped cross section, they may be square grooves with a rectangular parallelepiped cross section, or round grooves with an arcuate cross section. In addition, FIG. 3(b) shows a view of the optical fiber holding connector 10 from the W direction in FIG.
Shown below.
第２図に光ファイバ保持コネクタ１１の分解斜視図を示
す。第２図に示すように、光ファイバ保持コネクタ１１
は上側プレート１３と、ガイドピン１４ａ、１４ｂとド
側プレート１５とより構成されている。そして、上側プ
レート１３及び下側プレート１５はＳｉチップやプラス
チックなどで作成できる。Ｓｉチップとしては既にＶ溝
加工されている、例えば住友電気工業株式会社が製作し
ているＳ■コネクタを利用することもできる。また、こ
のガイドピン１４ａ、１４ｂは通常光コネクタに使用さ
れるガイドピンでよい。FIG. 2 shows an exploded perspective view of the optical fiber holding connector 11. As shown in FIG. 2, the optical fiber holding connector 11
is composed of an upper plate 13, guide pins 14a and 14b, and a side plate 15. The upper plate 13 and the lower plate 15 can be made of Si chips, plastic, or the like. As the Si chip, it is also possible to use an S■ connector manufactured by Sumitomo Electric Industries, Ltd., which has already been processed into a V-groove. Further, the guide pins 14a and 14b may be guide pins commonly used in optical connectors.
一方上側プレート１３及び下側プレート１５は、第２図
に示すように、それぞれ略直方体状の形状をしており、
上側プレート１３のほうが下側プレート１５より長く形
成されている。そして、これらの上側プレート１３及び
下側プレート１５を互いに固定して光導波路基体１１に
結合した時、上側プレート１３の下面１３ａが光導波路
基体１１の上面１１ａに当接し、Ｚ方向の位置合せが成
されるように構成しておくことが好ましい。上側プレー
ト溝にはそれぞれガイドピン１４ａ１１４ｂを挿入固定
するためのＶ溝１６ａ、１６ｂが、■側プレートにはＶ
溝１７ａ、１７ｂが形成されている。ガイドピン１４ａ
はこの上側プレート１３及び下側プレート１５の■溝１
６ａ１１７ａ間に挾み込まれて固定され、ガイドピン１
４ｂはこの上側プレート１３及び下側プレート１５のＶ
溝１６ｂ、１７ｂとの間に挾み込まれて固定される。更
に上側プレート溝には光ファイバ１８ ａ ｓ １８
ｂ ｓ １８ ｃを保持するためのＶ満１９ａ、１９ｂ
、１９ｃが形成され、下側プレート１５にも上側プレー
ト１３と対向して固定したとき、Ｖｔ４１９ａ、１９ｂ
、１９ｃに対応する位置にＶ １Ｍ ２０ ａ 、 ２
０ ｂ 、 ２０ ｃが形成しである。On the other hand, the upper plate 13 and the lower plate 15 each have a substantially rectangular parallelepiped shape, as shown in FIG.
The upper plate 13 is longer than the lower plate 15. When these upper plate 13 and lower plate 15 are fixed to each other and coupled to the optical waveguide base 11, the lower surface 13a of the upper plate 13 comes into contact with the upper surface 11a of the optical waveguide base 11, and alignment in the Z direction is performed. It is preferable to configure the system so that it can be done. The upper plate grooves have V grooves 16a and 16b for inserting and fixing the guide pins 14a and 114b, respectively, and the side plate has V grooves 16a and 16b.
Grooves 17a and 17b are formed. Guide pin 14a
is the groove 1 of this upper plate 13 and lower plate 15.
It is inserted between 6a and 117a and fixed, and the guide pin 1
4b is the V of this upper plate 13 and lower plate 15.
It is inserted and fixed between the grooves 16b and 17b. Furthermore, an optical fiber 18 a s 18 is installed in the upper plate groove.
V full 19a, 19b to hold b s 18 c
, 19c are formed, and when the lower plate 15 is also fixed facing the upper plate 13, Vt419a, 19b
, 19c at the position corresponding to V 1M 20 a , 2
0 b and 20 c are formed.
そして光ファイバは上側プレート１３及び下側プレート
１５の光ファイバ用■溝間に挾み込まれることにより位
置決め固定される。そして、これらのガイドピン用Ｖ溝
及び光ファイバ用ｖ ｔｉｌｔはそれぞれ、先に説明し
た光導波路に形成されたガイドピン用Ｖ溝及び光導波路
端面部に対応する位置に形成され、第１図に示す様に光
導波路基体と光ファイバ保持コネクタとをガイドピンを
利用して結合したとき互いに、調心されているように形
成されている。The optical fiber is positioned and fixed by being inserted between the optical fiber grooves of the upper plate 13 and the lower plate 15. These guide pin V grooves and optical fiber V tilts are formed at positions corresponding to the guide pin V grooves and the optical waveguide end surface formed in the optical waveguide described above, respectively, and are shown in FIG. As shown, the optical waveguide base and the optical fiber holding connector are formed so that they are aligned with each other when they are coupled using guide pins.
第４図を用いて上記実施例の結合構造の調心状態を説明
する。The alignment state of the coupling structure of the above embodiment will be explained using FIG.
第４図（ａ）には、上記実施例の結合構造の側面図、第
４図（ｂ）には、結合構造の光ファイバが装むされてい
る面で切った部分断面図及び第４図（Ｃ）には、結合構
造のがイドビンが設けられている面で切った部分断面図
を示す。FIG. 4(a) is a side view of the coupling structure of the above embodiment, and FIG. 4(b) is a partial cross-sectional view of the coupling structure taken along the plane in which the optical fiber is wrapped. (C) shows a partial cross-sectional view of the coupling structure taken along the plane where the idbin is provided.
先に説明したように光ファイバ１８ａ等は光ファイバ保
ｔ１コネクタ１０が光導波路基体１１に装むされた時、
光ファイバ保持コネクタ１０に保持されるようになって
おり、その光ファイバコネクタ１０と光導波路基体１１
とのＺ方向の位置決めは上側プレート１３の下面１３ａ
と光導波路基体１１の上面１１ ａとが当接することに
よりなされ、Ｘ方向の位置決めは光ファイバ保持コネク
タ１０の下側プレート１５の前面１５ａと光導波路基体
１１の側面１ｂに当接させることにより行い、更にＹ方
向の位置決めに関して、光ファイバ保持コネクタ１０の
Ｖ／ｉｖｊに装着されたガイドピン１４ａ１１４ｂが光
導波路基体１１のＶ溝１２ａ、１２ｂ及び挿入されるこ
とにより成される。As explained above, when the optical fiber 18a etc. are mounted on the optical waveguide base 11,
It is designed to be held by an optical fiber holding connector 10, and the optical fiber connector 10 and optical waveguide base 11
Positioning in the Z direction with the lower surface 13a of the upper plate 13
The positioning in the X direction is performed by bringing the front surface 15a of the lower plate 15 of the optical fiber holding connector 10 into contact with the side surface 1b of the optical waveguide base 11. Furthermore, regarding positioning in the Y direction, guide pins 14a114b attached to V/ivj of the optical fiber holding connector 10 are inserted into the V grooves 12a, 12b of the optical waveguide base 11.
この様に単に光ファイバ保持コネクタ１０に装着された
ガイドピンを光導波路基体１１のＶ溝の挿入し、更に、
光ファイバ保持コネクタ１０の２面を光導波路基体１１
の２面にそれぞれ当接させることにより、光導波路基体
に形成された光導波路の入出力端部と光ファイバとを調
心することができる。In this way, simply insert the guide pin attached to the optical fiber holding connector 10 into the V-groove of the optical waveguide base 11, and further,
Two sides of the optical fiber holding connector 10 are attached to the optical waveguide base 11
By bringing these two surfaces into contact with each other, it is possible to align the input and output ends of the optical waveguide formed on the optical waveguide base and the optical fiber.
更に、上記実施例の光導波路基体と光ファイバ保持コネ
クタとを互いに装着固定しただけでは上方からの力によ
り外れやすい。そこで、第５図（ａ）に示すように接続
後樹脂等２１で固定したり、更に第５図（ｂ）に示すよ
うに、ホルダー２３内に嵌め込み樹脂等２２で固定して
使用することが好ましい。Furthermore, if the optical waveguide base body and the optical fiber holding connector of the above embodiment are simply attached and fixed to each other, they are likely to come off due to a force from above. Therefore, as shown in FIG. 5(a), it may be fixed with resin etc. 21 after connection, or it may be used by being fitted into a holder 23 and fixed with resin etc. 22 as shown in FIG. 5(b). preferable.
本発明は上記実施例に限定されるものでなく、種々の変
形例が考えられ得る。The present invention is not limited to the above embodiments, and various modifications may be made.
具体的には、上記実施例ではＺ方向の位置決めを、先フ
ァイバ保持コネクタの１面と光導波路基体の上面とを当
接させているが、光ファイバ保持コネクタに装心された
ガイドピンを光導波路基体の上面に形成されたＶ溝に挿
入することにより成すこともできる。この場合には光フ
ァイバ保持コネクタの１下面を光導波路基体の上面に当
接させる必要はない。Specifically, in the above embodiment, the positioning in the Z direction is carried out by bringing one surface of the end fiber holding connector into contact with the top surface of the optical waveguide base, but the guide pin attached to the optical fiber holding connector is It can also be achieved by inserting it into a V-groove formed on the upper surface of the waveguide substrate. In this case, it is not necessary to bring the bottom surface of the optical fiber holding connector into contact with the top surface of the optical waveguide base.
更に上記実施例では、光導波路基体の一方の側にのみ光
ファイバ保持コネクタを設ける例について説明している
が、通常は両側に設けている。Further, in the above embodiments, an example is described in which the optical fiber holding connector is provided only on one side of the optical waveguide substrate, but normally it is provided on both sides.
更に、上記実施例では光ファイバ、ガイドピンが挿入固
定される溝をＶ形としているが、Ｕ形で・も、矩形状で
もよい。Further, in the above embodiment, the groove into which the optical fiber and guide pin are inserted and fixed is V-shaped, but it may be U-shaped or rectangular.
本発明の光導波路・光ファイバ結合構造では、先に説明
したように、光ファイバと光導波路の大人出力端部の間
を位置決め調整作業をすることなく、単に光ファイバを
保持している光ファイバ保持コネクタのガイドピンを光
導波路基体のＶ溝に挿入することにより簡単に行うこと
ができる。In the optical waveguide/optical fiber coupling structure of the present invention, as described above, the optical fiber that simply holds the optical fiber does not need to be adjusted for positioning between the optical fiber and the output end of the optical waveguide. This can be easily done by inserting the guide pin of the holding connector into the V-groove of the optical waveguide base.
第１図は本発明に従う光導波路・光ファイバ結合構造の
分解斜視図、第２図は第１図に示す先ファイバ保持コネ
クタの分解斜視図、第３図は第１図に示す光導波路基体
及び光ファイバ保持コネクタの側面図、第４図は第１図
に示す光導波路・光ファイバ結合構造の各断面を示す図
、第５図は、第１図に示す光導波路・光ファイバ結合構
造の固定例を示す図及び第６図は従来の光導波路・先フ
ァイバ結合＋Ｍｊｆｌの例を示す図である。
１０・・・光ファイバ保持コネクタ、１１・・・光導波
路基体、１２ａ、１２ｂ・・・ガイドピン用■溝、１３
上側プレート、１４ａ、１４ｂ・・・ガイドピン、１５
・・・ド側プレート。
特許出願人 住友電気工業株式会社
代理人弁理士 長谷用 芳 樹間
寺 嶋 史 朗２０ｃ
光ファイバづ予行コ″Ｆ、７り
第２図
（ａ）
（ｂ）
光叫スフシ８イ本足０ζ゛声二ファイバづ爪杼コネ２り
慣）Ｊ面Ｎ ３ 図
ｆ殴合ズ３
圓欠万舌
第
図FIG. 1 is an exploded perspective view of an optical waveguide/optical fiber coupling structure according to the present invention, FIG. 2 is an exploded perspective view of the end fiber holding connector shown in FIG. 1, and FIG. 3 is an exploded perspective view of the optical waveguide base and optical fiber shown in FIG. A side view of the optical fiber holding connector, Fig. 4 is a cross-sectional view of the optical waveguide/optical fiber coupling structure shown in Fig. 1, and Fig. 5 is a diagram showing the fixing of the optical waveguide/optical fiber coupling structure shown in Fig. 1. The figure showing an example and FIG. 6 are views showing an example of the conventional optical waveguide/end fiber coupling +Mjfl. 10... Optical fiber holding connector, 11... Optical waveguide base, 12a, 12b... ■Groove for guide pin, 13
Upper plate, 14a, 14b...guide pin, 15
...Do side plate. Patent applicant: Sumitomo Electric Industries, Ltd. Representative patent attorney Yoshiki Hase
Fumiaki Terashima 20c Optical fiber zu rehearsal ``F, 7ri Figure 2 (a) (b) Light shouting Sufushi 8 legs 0ζ゛voice 2 fibers claw shuttle connection 2ri) J side N 3 Figure f Hitgozu 3 Enchikumantonzu Zu
Claims (1)
し、端面に光信号の導入出口を有する光導波路が形成さ
れている光導波路基体と、前記ガイド溝に係合するガイ
ドピンを有し、前記ガイドピンが前記ガイド溝に係合し
たとき、前記導入出口に光結合するように位置決めされ
た光ファイバを保持する光ファイバ保持コネクタ部材と
を備えた光導波路・光ファイバ結合構造。 ２、前記光ファイバ保持コネクタ部材が前記光導波路基
体の上面に当接する当接面を備え、前記当接面が前記光
導波路基体の上面に当接することにより前記光ファイバ
保持コネクタ部材に保持される光ファイバと前記光導波
路基体上の光導波路の光信号導入出口との間のＺ軸方向
の位置決めが成される請求項１記載の光導波路・光ファ
イバ結合構造。[Scope of Claims] 1. An optical waveguide substrate having guide grooves formed parallel to each other at predetermined intervals, and an optical waveguide having an optical signal introduction/exit on an end surface, and an optical fiber holding connector member that holds an optical fiber positioned to be optically coupled to the inlet/outlet when the guide pin engages with the guide groove; Optical fiber coupling structure. 2. The optical fiber holding connector member includes a contact surface that comes into contact with the upper surface of the optical waveguide base, and the optical fiber is held by the optical fiber holding connector member by the contact surface contacting the upper surface of the optical waveguide base. 2. The optical waveguide/optical fiber coupling structure according to claim 1, wherein the optical fiber and the optical signal introduction exit of the optical waveguide on the optical waveguide base are positioned in the Z-axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63278471A JPH02125209A (en) | 1988-11-02 | 1988-11-02 | Optical waveguide and optical fiber coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63278471A JPH02125209A (en) | 1988-11-02 | 1988-11-02 | Optical waveguide and optical fiber coupling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02125209A true JPH02125209A (en) | 1990-05-14 |
| JPH0560844B2 JPH0560844B2 (en) | 1993-09-03 |
Family
ID=17597795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63278471A Granted JPH02125209A (en) | 1988-11-02 | 1988-11-02 | Optical waveguide and optical fiber coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02125209A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02125208A (en) * | 1988-11-04 | 1990-05-14 | Nippon Telegr & Teleph Corp <Ntt> | Optical waveguide and optical fiber connecting connector |
| WO1992021047A1 (en) * | 1991-05-20 | 1992-11-26 | The Furukawa Electric Co., Ltd. | Method of connecting optical waveguide to optical fiber |
| US5197109A (en) * | 1991-04-15 | 1993-03-23 | Ngk Insulators, Ltd. | Method of manufacturing assembly of optical waveguide substrate and optical fiber aligning substrate |
| EP0611142A1 (en) * | 1993-02-12 | 1994-08-17 | Ngk Insulators, Ltd. | A process for optically joining an optical fiber array to an opponent member |
| JPH08201650A (en) * | 1995-01-27 | 1996-08-09 | Ngk Insulators Ltd | Device for adjusting parallelism of end surface of optical substrate |
| US5557695A (en) * | 1994-05-12 | 1996-09-17 | Fujitsu Limited | Waveguide-optical fiber connection structure and waveguide-optical fiber connection method |
| US5611014A (en) * | 1994-12-07 | 1997-03-11 | Lucent Technologies Inc. | Optoelectronic device connecting techniques |
| US5656120A (en) * | 1994-07-28 | 1997-08-12 | Ngk Insulators, Ltd. | Method of fixing optical fiber array to substrate |
| US5835659A (en) * | 1995-02-21 | 1998-11-10 | Ngk Insulators, Ltd. | Optical fiber-fixing substrate, method of producing the same and optical device |
| US6027253A (en) * | 1995-08-24 | 2000-02-22 | Ngk Insulators, Ltd. | Optical fiber array |
| JP2002501468A (en) * | 1997-04-17 | 2002-01-15 | イギリス国 | Etching method |
| US6668119B2 (en) * | 2001-02-27 | 2003-12-23 | Ngk Insulators, Ltd. | Substrate for mounting optical parts, method of manufacturing same, and assembly using the substrate |
| JP2007178790A (en) * | 2005-12-28 | 2007-07-12 | Sony Corp | Optical coupler and optical connector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6187017B2 (en) | 2013-08-09 | 2017-08-30 | セイコーエプソン株式会社 | Channel unit, liquid ejecting head, liquid ejecting apparatus, and method for manufacturing channel unit |
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|---|---|---|---|---|
| JPS5473061A (en) * | 1977-11-21 | 1979-06-12 | Nec Corp | Connector for optical fibers |
| JPS58100307U (en) * | 1981-12-28 | 1983-07-08 | 三菱電機株式会社 | Optical transmission connector |
| JPS59139580A (en) * | 1982-12-09 | 1984-08-10 | アライド・コ−ポレイシヨン | Optical fiber of female and male same type or connector member for electric line |
| JPS6235308U (en) * | 1985-08-20 | 1987-03-02 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54127217A (en) * | 1978-03-27 | 1979-10-03 | Sony Corp | Load driver circuit |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5473061A (en) * | 1977-11-21 | 1979-06-12 | Nec Corp | Connector for optical fibers |
| JPS58100307U (en) * | 1981-12-28 | 1983-07-08 | 三菱電機株式会社 | Optical transmission connector |
| JPS59139580A (en) * | 1982-12-09 | 1984-08-10 | アライド・コ−ポレイシヨン | Optical fiber of female and male same type or connector member for electric line |
| JPS6235308U (en) * | 1985-08-20 | 1987-03-02 |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02125208A (en) * | 1988-11-04 | 1990-05-14 | Nippon Telegr & Teleph Corp <Ntt> | Optical waveguide and optical fiber connecting connector |
| US5197109A (en) * | 1991-04-15 | 1993-03-23 | Ngk Insulators, Ltd. | Method of manufacturing assembly of optical waveguide substrate and optical fiber aligning substrate |
| WO1992021047A1 (en) * | 1991-05-20 | 1992-11-26 | The Furukawa Electric Co., Ltd. | Method of connecting optical waveguide to optical fiber |
| US5361382A (en) * | 1991-05-20 | 1994-11-01 | The Furukawa Electric Co., Ltd. | Method of connecting optical waveguide and optical fiber |
| EP0611142A1 (en) * | 1993-02-12 | 1994-08-17 | Ngk Insulators, Ltd. | A process for optically joining an optical fiber array to an opponent member |
| US5482585A (en) * | 1993-02-12 | 1996-01-09 | Ngk Insulators, Ltd. | Process for optically joining an optical fiber array to an opponent member |
| US5784509A (en) * | 1994-05-12 | 1998-07-21 | Fujitsu Limited | Waveguide-optical fiber connection structure and waveguide-optical fiber connection method |
| US5557695A (en) * | 1994-05-12 | 1996-09-17 | Fujitsu Limited | Waveguide-optical fiber connection structure and waveguide-optical fiber connection method |
| US5656120A (en) * | 1994-07-28 | 1997-08-12 | Ngk Insulators, Ltd. | Method of fixing optical fiber array to substrate |
| US5611014A (en) * | 1994-12-07 | 1997-03-11 | Lucent Technologies Inc. | Optoelectronic device connecting techniques |
| JPH08201650A (en) * | 1995-01-27 | 1996-08-09 | Ngk Insulators Ltd | Device for adjusting parallelism of end surface of optical substrate |
| US5835659A (en) * | 1995-02-21 | 1998-11-10 | Ngk Insulators, Ltd. | Optical fiber-fixing substrate, method of producing the same and optical device |
| US5991492A (en) * | 1995-02-21 | 1999-11-23 | Ngk Insulators, Ltd. | Optical fiber-fixing substrate, method of producing the same and optical device |
| US6027253A (en) * | 1995-08-24 | 2000-02-22 | Ngk Insulators, Ltd. | Optical fiber array |
| JP2002501468A (en) * | 1997-04-17 | 2002-01-15 | イギリス国 | Etching method |
| JP4667544B2 (en) * | 1997-04-17 | 2011-04-13 | キネティック リミテッド | Etching method |
| US6668119B2 (en) * | 2001-02-27 | 2003-12-23 | Ngk Insulators, Ltd. | Substrate for mounting optical parts, method of manufacturing same, and assembly using the substrate |
| JP2007178790A (en) * | 2005-12-28 | 2007-07-12 | Sony Corp | Optical coupler and optical connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0560844B2 (en) | 1993-09-03 |
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