JP2617054B2 - Optical connection module - Google Patents
Optical connection moduleInfo
- Publication number
- JP2617054B2 JP2617054B2 JP3271013A JP27101391A JP2617054B2 JP 2617054 B2 JP2617054 B2 JP 2617054B2 JP 3271013 A JP3271013 A JP 3271013A JP 27101391 A JP27101391 A JP 27101391A JP 2617054 B2 JP2617054 B2 JP 2617054B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- light
- substrate
- optical
- reflection mirror
- 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.)
- Expired - Fee Related
Links
Landscapes
- Optical Couplings Of Light Guides (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Light Receiving Elements (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は光通信の分野において、
複数の光ファイバ間で光信号を切り換える光接続モジュ
ールに関するものである。BACKGROUND OF THE INVENTION The present invention relates to the field of optical communications.
The present invention relates to an optical connection module for switching an optical signal between a plurality of optical fibers.
【０００２】[0002]
【従来の技術】従来、二次元ファイバアレイ間で光信号
を切り換える空間接続では、図４に示すように、二次元
ファイバアレイを配置した基板１の間に、幾つかのビー
ムシフタ２を設置した構成になっている。この構成で
は、光ファイバ３から出てきた光が、マイクロレンズ４
によって平行な光ビーム５に変換され、すべてのビーム
シフタ２を通過してから、最後に他方のファイバアレイ
に到達する。光ビーム５はビームシフタ２を通過すると
き電気信号の有無によって、その進路が変えられ、進路
変更を受けた光ビーム５は、ビームシフタ２内の幾つか
に分割されているセクションを一つだけ隣に移動する。
したがって、ビームの進路を大きく変えるためには、多
くのビームシフタが必要になる。例えば、図４において
一方の二次元ファイバアレイ１の隅のファイバを、他方
の二次元ファイバアレイ上で対角の位置にあるファイバ
に接続する場合、８個のビームシフタが必要になる。こ
のように空間接続する二つの光ファイバの間に多くの部
品が存在すると、ファイバ間での光の損失が大きくなる
だけでなく、二次元ファイバアレイ１およびビームシフ
タ２の相互の位置合わせに高精度が必要となるといった
問題が起きる。2. Description of the Related Art Conventionally, in a spatial connection for switching an optical signal between two-dimensional fiber arrays, as shown in FIG. 4, a structure in which several beam shifters 2 are installed between substrates 1 on which two-dimensional fiber arrays are arranged. It has become. In this configuration, light coming out of the optical fiber 3 is
Is converted into a parallel light beam 5, passes through all the beam shifters 2, and finally reaches the other fiber array. When the light beam 5 passes through the beam shifter 2, its path is changed depending on the presence or absence of an electric signal, and the light beam 5 having undergone the change in path is placed next to one section of the beam shifter 2 which is divided into several sections. Moving.
Therefore, in order to largely change the course of the beam, many beam shifters are required. For example, in FIG. 4, when connecting a fiber at a corner of one two-dimensional fiber array 1 to a fiber at a diagonal position on the other two-dimensional fiber array, eight beam shifters are required. If there are many components between the two optical fibers spatially connected as described above, not only the loss of light between the fibers will increase, but also the two-dimensional fiber array 1 and the beam shifter 2 will be required to have high precision in the mutual alignment. Is required.
【０００３】[0003]
【発明が解決しようとする課題】本発明は二つの回転反
射ミラーを用いることにより、前記の問題を解消する光
接続モジュールを提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide an optical connection module which solves the above-mentioned problem by using two rotating reflection mirrors.
【０００４】本発明の光接続モジュールは、光ファイバ
と縦方向及び横方向の２軸に独立に回転可能なミラーと
を二次元配列し、更にそれらの間に受光素子を配列した
基板を用い、一方の基板の光ファイバの端面と他方の基
板の反射ミラーとが互いに向き合うように一定の間隔を
おいて対向させ、受光素子によって光の位置を検出し
て、一方の基板の光ファイバから出た光を他方の基板の
反射ミラーで反射させ、この光を対向する基板上の光フ
ァイバまたは反射ミラーに光を当てることにより、任意
の光ファイバ同士を光接続する。An optical connection module according to the present invention uses a substrate on which an optical fiber and a mirror which can be independently rotated in two axes in a vertical direction and a horizontal direction are two-dimensionally arranged, and a light receiving element is arranged between them. The end face of the optical fiber of one substrate and the reflection mirror of the other substrate face each other at a fixed interval so as to face each other, the position of light is detected by a light receiving element, and the light exits from the optical fiber of one substrate. The light is reflected by the reflection mirror of the other substrate, and the light is applied to an optical fiber or a reflection mirror on the opposing substrate, thereby optically connecting arbitrary optical fibers to each other.
【０００５】[0005]
【実施例】以下、図面を参照して、本発明の実施例を詳
細に説明する。図１は光ファイバと回転反射ミラーを二
次元に配列したアレイ基板の基本構成を示す斜視図であ
って、３は光ファイバ、４はマイクロレンズ基板上のマ
イクロレンズ、６はマイクロレンズ基板上で回転反射ミ
ラーを配置するための開孔、７はマイクロレンズを配置
した基板、８は二軸方向に回転できる回転反射ミラー、
９は二次元に配列してファイバ３と回転反射ミラー８を
保持するアレイ基板である。マイクロレンズ４は光ファ
イバ３の端面と対向しており、出射光を平行な光ビーム
に変換する。回転反射ミラー８は縦方向と横方向の二軸
に独立で回転可能であるので、ミラー面を任意の方向に
向けることができる。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing a basic configuration of an array substrate in which optical fibers and rotating reflection mirrors are two-dimensionally arranged. 3 is an optical fiber, 4 is a microlens on a microlens substrate, and 6 is a microlens on a microlens substrate. An opening for disposing a rotating reflection mirror, 7 a substrate on which a microlens is disposed, 8 a rotating reflection mirror capable of rotating in two axial directions,
Reference numeral 9 denotes an array substrate that holds the fibers 3 and the rotating reflection mirror 8 in a two-dimensional array. The microlens 4 faces the end face of the optical fiber 3 and converts the outgoing light into a parallel light beam. Since the rotating reflection mirror 8 can be independently rotated about two axes of the vertical direction and the horizontal direction, the mirror surface can be directed to an arbitrary direction.
【０００６】図２は光接続モジュールの基本構成を示す
斜視図であって、アレイ基板（マイクロレンズ基板７は
図示せず）ＡとＢによる接続状態をわかり易くするた
め、ファイバアレイを傾けた状態で図示している。本
来、アレイ基板Ａは、そのファイバと回転反射ミラー
が、アレイ基板Ｂの回転反射ミラーとファイバとに一定
の距離をおいて平行に対向するように固定される。FIG. 2 is a perspective view showing the basic structure of the optical connection module. In order to make the connection state of the array substrates (microlens substrate 7 not shown) A and B easy to understand, the fiber array is tilted. It is illustrated. Originally, the array substrate A is fixed such that the fiber and the rotary reflection mirror face the rotary reflection mirror and the fiber of the array substrate B in parallel at a fixed distance.
【０００７】この構成において、アレイ基板Ａのｉ番目
のファイバＦa (i) とアレイ基板Ｂのｊ番目のファイバ
Ｆb (j) を接続する場合、ファイバＦa (i) と対向する
位置にあるアレイ基板Ｂの上の回転ミラーＭb (i) は、
ファイバＦa (i) から出てきた光が、アレイ基板Ａのｊ
番目にある回転反射ミラーＭa (j) に当たるように、そ
の角度を設定し、同様に回転反射ミラーＭa (j) は、回
転反射ミラーＭb (i)からの反射ビームを、ファイバＦ
b (j) に伝搬するように調整すればよい。In this configuration, when connecting the i-th fiber F a (i) of the array substrate A and the j-th fiber F b (j) of the array substrate B, the fiber F a (i) is located at a position facing the fiber F a (i). The rotating mirror M b (i) on a certain array substrate B is
The light emitted from the fiber F a (i)
The angle is set so as to impinge on the second rotating reflecting mirror M a (j). Similarly, the rotating reflecting mirror M a (j) transmits the reflected beam from the rotating reflecting mirror M b (i) to the fiber F
It may be adjusted to propagate to b (j).
【０００８】もし回転反射ミラーＭa (j) の反射ビーム
をファイバＦb (j) ではなく、回転反射ミラーＭb (k)
に当て、さらにこのミラーの反射ビームをＦa (k) に照
射すると、アレイ基板Ａから出た光を、同じ基板上の他
の光ファイバと接続できる。すなわち、２枚の反射ミラ
ーを使うと、出射ビームと対向するアレイ基板上の任意
の光ファイバと、また３枚の反射ミラーを使うと、出射
ビームと同じアレイ基板上の任意の光ファイバと、それ
ぞれ空間接続ができる。なお、反射ミラーを１枚だけ使
う接続も可能で、この場合には、入出射する光ファイバ
が同じ基板上にあり、かつ光が斜め入射になるので、光
伝搬は一方向という制限を受ける。If the reflected beam from the rotary reflecting mirror M a (j) is not reflected by the fiber F b (j), the rotating reflecting mirror M b (k)
When the reflected beam of the mirror is applied to F a (k), the light emitted from the array substrate A can be connected to another optical fiber on the same substrate. That is, if two reflection mirrors are used, any optical fiber on the array substrate facing the output beam, and if three reflection mirrors are used, any optical fiber on the same array substrate as the output beam, Each can be connected in space. In addition, connection using only one reflection mirror is also possible. In this case, since the optical fibers to enter and exit are on the same substrate and the light is obliquely incident, the light propagation is limited to one direction.
【０００９】ファイバＦa (i) から出てきた光を、回転
反射ミラーＭb (i) で元のファイバＦa (i) に反射ビー
ムを戻す空間接続まで含めて考えると、本発明の光接続
モジュールでは、自己を含めモジュールを構成するすべ
ての光ファイバを、相互に空間接続できる。[0009] The light emerging from the fiber F a (i), considering including a rotating reflecting mirror M b (i) until the reflected beam space connected back to the original fiber F a (i), the light of the present invention In the connection module, all optical fibers constituting the module including itself can be spatially connected to each other.
【００１０】この空間接続における光の損失は、光接続
の経路や長さにほとんど関係なく、２枚または３枚の反
射ミラーによる反射率だけを考慮すればよく、これに対
しては、従来から広く使われている高反射膜の採用によ
り、光の損失は小さくなる。なお、マイクロレンズを透
過するときのフレネル反射損に対しても低反射膜を使う
ことで、その影響を低減できる。[0010] The loss of light in this spatial connection is almost irrespective of the path and length of the optical connection, and it is sufficient to consider only the reflectivity of two or three reflecting mirrors. Light loss is reduced by adopting a widely used high reflection film. In addition, by using a low-reflection film, the influence of Fresnel reflection loss when transmitting through a microlens can be reduced.
【００１１】また、アレイ基板Ａ，Ｂの相対的な位置お
よびアレイ基板上に配列する各ファイバの位置について
は、高精度を必要とせず、ファイバＦa (i) から出た光
ビームが、回転反射ミラーＭb (i) に確実に当たるだけ
の精度があればよい。この理由は、回転反射ミラーＭb
(i) で受けた光ビームを、回転反射ミラーＭa (j) で中
断し、ファイバＦb (j) に伝搬するとき、いずれも相手
の位置に関係なく、回転反射ミラーを角度調整すること
により接続できるからである。The relative position of the array substrates A and B and the position of each fiber arranged on the array substrate do not require high precision, and the light beam emitted from the fiber F a (i) rotates. It suffices if there is accuracy enough to reliably hit the reflecting mirror M b (i). The reason is that the rotating reflection mirror M b
When the light beam received in (i) is interrupted by the rotating reflection mirror M a (j) and propagates to the fiber F b (j), the angle of the rotation reflection mirror is adjusted regardless of the position of the other party. This is because the connection can be made by
【００１２】しかしながら、この方法では、アレイ基板
上のビームの位置を知るには、ファイバに光ビームを当
てて、その位置を検出することになる。ところが目的の
ファイバ以外、他のすべてのファイバが接続されてい
て、これらのファイバに、もう一つの光ビームを当てる
ことができない場合には、ビームの位置検出が困難にな
るという問題がある。However, in this method, in order to know the position of the beam on the array substrate, a light beam is applied to the fiber and the position is detected. However, if all other fibers are connected except for the target fiber and it is not possible to apply another light beam to these fibers, there is a problem that beam position detection becomes difficult.
【００１３】図３は二次元配列基板上でファイバ端面と
回転反射ミラーの間に、受光素子１０を配置し、光ビー
ムの位置検出を可能にしたアレイ基板の正面図であっ
て、モジュールの構成は前記と同様に行う。このアレイ
基板では、以下のようにして、目的のミラーやファイバ
に、光ビームを当てることができる。FIG. 3 is a front view of an array substrate in which a light receiving element 10 is arranged between a fiber end face and a rotating reflection mirror on a two-dimensional array substrate to enable light beam position detection. Is performed in the same manner as described above. With this array substrate, a light beam can be applied to a target mirror or fiber as follows.
【００１４】まず、向かい側にあるアレイ基板上の任意
の受光素子１０に光ビーム５を当て、当たっている光ビ
ーム位置Ｐ1 を検知する。次に、ここから目的とするフ
ァイバＦ0 或いはミラーＭ0 （図示せず）の位置を計算
して、光ビームを走査する。この方法において、この光
ビーム走査の際、ビームを直接目的とする例えばファイ
バＦ0 に移動するのではなく、先ずその周囲に配置され
ている四つの受光素子１０′の一つで光ビームの位置を
検出し、次に光ビームをファイバＦ0 に走査すると、フ
ァイバＦ0 と受光素子１０′との相対位置が近いことか
ら、目的のファイバＦ0 に正確に光ビームを当てること
ができる。First, the light beam 5 is applied to an arbitrary light receiving element 10 on the array substrate on the opposite side, and the position P 1 of the light beam is detected. Next, the position of the target fiber F 0 or mirror M 0 (not shown) is calculated from this, and the light beam is scanned. In this method, when scanning the light beam, the beam is not moved directly to the target, for example, the fiber F 0 , but the position of the light beam is first detected by one of the four light receiving elements 10 ′ arranged around the fiber F 0. detects, then the light beam scanning the fiber F 0, since the relative position of the fiber F 0 and the light receiving element 10 'are close, it is possible to apply accurately light beam to the fiber F 0 purposes.
【００１５】[0015]
【発明の効果】以上説明したように、本発明の光接続モ
ジュールは、アレイ基板上の光ファイバを相互接続する
場合、光の進路変更と位置決めには、それぞれのファイ
バに対向する２枚の回転反射ミラーしか使わないので、
操作は簡単であり、光損失も小さい。また、すでに接続
されているファイバ間の組合せを変更する場合も、同様
にすればよい。しかもファイバの配列やアレイ基板の相
対位置に対して高精度を必要としないので、これらの部
品の加工や組立が容易になるという効果が期待できる。As described above, in the optical connection module of the present invention, when the optical fibers on the array substrate are interconnected, the optical path change and the positioning are performed by two rotations facing each fiber. Since only a reflection mirror is used,
Operation is simple and light loss is small. Further, the same may be applied to a case where the combination between already connected fibers is changed. Moreover, since high precision is not required for the arrangement of the fibers and the relative position of the array substrate, an effect that processing and assembling of these components can be easily expected can be expected.
【図１】光ファイバと回転反射ミラーを二次元に配列し
たアレイ基板の基本構成を示す斜視図である。FIG. 1 is a perspective view showing a basic configuration of an array substrate in which an optical fiber and a rotating reflection mirror are two-dimensionally arranged.
【図２】２枚のアレイ基板を用いた光の空間接続状態を
示す図である。FIG. 2 is a diagram showing a spatial connection state of light using two array substrates.
【図３】二次元配列基板でファイバ端面と回転反射ミラ
ーの間に受光素子を配置し、光ビームの位置検出を可能
にしたアレイ基板の正面図である。FIG. 3 is a front view of an array substrate in which a light receiving element is disposed between a fiber end face and a rotating reflection mirror on a two-dimensional array substrate, and a light beam position can be detected.
【図４】ビームシフタを用いた二次元の光接続モジュー
ルの構成を示す斜視図である。FIG. 4 is a perspective view showing a configuration of a two-dimensional optical connection module using a beam shifter.
１ 二次元ファイバアレイ基板 ２ ビームシフタ ３ 光ファイバ ４ マイクロレンズ ５ 光ビーム ６ 開孔 ７ マイクロレンズ基板 ８ 回転反射ミラー ９ アレイ基板 １０，１０′ 受光素子 Ａ，Ｂ アレイ基板 Ｆ0 ，Ｆa (i) ，Ｆa (k) ，Ｆb(i) ファイバ Ｐ1 光ビーム位置 Ｍb (i) ，Ｍa (j) ，Ｍb (k) 回転反射ミラーREFERENCE SIGNS LIST 1 two-dimensional fiber array substrate 2 beam shifter 3 optical fiber 4 micro lens 5 light beam 6 aperture 7 micro lens substrate 8 rotating reflection mirror 9 array substrate 10, 10 'light receiving element A, B array substrate F 0 , F a (i) , F a (k), F b (i) Fiber P 1 Light beam position M b (i), M a (j), M b (k) Rotating reflection mirror
Claims (1)
独立に回転可能なミラーとを二次元配列し、更にそれら
の間に受光素子を配列した基板を用い、一方の基板の光
ファイバの端面と他方の基板の反射ミラーとが互いに向
き合うように一定の間隔をおいて対向させ、前記受光素
子によって光の位置を検出して、一方の基板の光ファイ
バから出た光を他方の基板の反射ミラーで反射させ、こ
の光を対向する基板上の光ファイバまたは反射ミラーに
光を当てることにより、任意の光ファイバ同士を光接続
することを特徴とする光接続モジュール。1. An optical fiber of one of two substrates, wherein a substrate in which an optical fiber and a mirror which can be independently rotated in two axes in a vertical direction and a horizontal direction are two-dimensionally arranged and a light receiving element is arranged therebetween. The end face of the substrate and the reflection mirror of the other substrate are opposed to each other at a fixed interval so as to face each other, the position of light is detected by the light receiving element, and the light emitted from the optical fiber of one substrate is transmitted to the other substrate. An optical connection module, wherein arbitrary optical fibers are optically connected to each other by reflecting the light with a reflection mirror and irradiating the light to an optical fiber or a reflection mirror on an opposing substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3271013A JP2617054B2 (en) | 1991-10-18 | 1991-10-18 | Optical connection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3271013A JP2617054B2 (en) | 1991-10-18 | 1991-10-18 | Optical connection module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05107485A JPH05107485A (en) | 1993-04-30 |
| JP2617054B2 true JP2617054B2 (en) | 1997-06-04 |
Family
ID=17494196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3271013A Expired - Fee Related JP2617054B2 (en) | 1991-10-18 | 1991-10-18 | Optical connection module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2617054B2 (en) |
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| US8131123B2 (en) | 2006-11-07 | 2012-03-06 | Olympus Corporation | Beam steering element and associated methods for manifold fiberoptic switches and monitoring |
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|---|---|---|---|---|
| US6295154B1 (en) * | 1998-06-05 | 2001-09-25 | Texas Instruments Incorporated | Optical switching apparatus |
| US6320993B1 (en) | 1998-06-05 | 2001-11-20 | Astarte Fiber Networks, Inc. | Optical switch pathway configuration using control signals |
| CN1192263C (en) | 1998-06-05 | 2005-03-09 | Afn有限责任公司 | Planar array optical switch and method |
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| JPS55142307A (en) * | 1979-04-24 | 1980-11-06 | Matsushita Electric Ind Co Ltd | Optical axis position correcting device |
| JPH0830787B2 (en) * | 1987-10-16 | 1996-03-27 | 日本電信電話株式会社 | Fiber optic connector |
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| US6819823B2 (en) | 1997-02-13 | 2004-11-16 | The Regents Of The University Of California | Multi-wavelength cross-connect optical switch |
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| US6922239B2 (en) | 1997-02-13 | 2005-07-26 | The Regents Of The University Of California | Multi-wavelength cross-connect optical switch |
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| US6831391B2 (en) | 2001-09-27 | 2004-12-14 | Memx, Inc. | Microelectromechanical system for tilting a platform |
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| Publication number | Publication date |
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| JPH05107485A (en) | 1993-04-30 |
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