JPS58123502A - Optical switch - Google Patents

Optical switch

Info

Publication number
JPS58123502A
JPS58123502A JP604482A JP604482A JPS58123502A JP S58123502 A JPS58123502 A JP S58123502A JP 604482 A JP604482 A JP 604482A JP 604482 A JP604482 A JP 604482A JP S58123502 A JPS58123502 A JP S58123502A
Authority
JP
Japan
Prior art keywords
output
input
optical
mirror
terminals
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.)
Pending
Application number
JP604482A
Other languages
Japanese (ja)
Inventor
Toshikatsu Yasuda
家寿田　利勝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP604482A priority Critical patent/JPS58123502A/en
Publication of JPS58123502A publication Critical patent/JPS58123502A/en
Pending legal-status Critical Current

Links

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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
    • G02B6/3512—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror
    • G02B6/3514—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror the reflective optical element moving along a line so as to translate into and out of the beam path, i.e. across the beam path
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/3544—2D constellations, i.e. with switching elements and switched beams located in a plane
    • G02B6/3546—NxM switch, i.e. a regular array of switches elements of matrix type constellation
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
    • G02B6/3582—Housing means or package or arranging details of the switching elements, e.g. for thermal isolation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

PURPOSE:To permit insertion, connection, and disconnection relating to optical fiber cables in stations in a short time and to decrease the influences of signal interruption, etc. to be given upon local network by inserting and removing a double faced plane mirror. CONSTITUTION:When a double faced plane mirror 2 is in a position (inserted) including the point O of intersection of optical axes, the input rays from input terminals IP1, IP2 are made incident to the mirror surfaces A, B of the mirror 2 through input rod lenses 1A, 1B, reflect on said surfaces, pass through output rod lenses 1C, 1D, and are transmitted as output rays from output terminals OP1, OP2. When the mirror 2 is in a position (removed) where the point O is not contained as shown in broken lines in the figure, the input rays from the terminals IP1, IP2 pass straightly through the opposed lenses 1D, 1C and are transmitted as output rays from the terminals OP2, OP1.

Description

【発明の詳細な説明】 本発明は、２人力、２出力の光スィッチに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a two-manpower, two-output optical switch.

例えば、光フアイバケーブルを用いたローカルネットワ
ークにおいては、それに収容されているステーションの
故障時、試験時等の切離しく除去）を行うために、この
種の光スィッチが必要となる。For example, in a local network using optical fiber cables, this type of optical switch is required in order to separate and remove the stations accommodated therein in the event of failure, testing, etc.

第１図は、従来の光スィッチの一例の原理構成図である
。FIG. 1 is a diagram showing the principle configuration of an example of a conventional optical switch.

この光スィッチは、例えば、上記ローカルネットワーク
のステーションの挿入位置に設けられるもので、２つの
入力端子ＩＰＩ、ＩＰ２からの入力光は、それぞれ、入
力ロットレンズＩＡ、ＩＢを通過し、鏡体２Ａの鏡面Ａ
、Ｂで反射され、更に出力ロッドレンズＩＣ，ＩＤを通
過して出力端子ＯＰＩ、ＯＰ２から出力光として出力さ
れる。This optical switch is provided, for example, at the insertion position of the station of the local network, and the input light from the two input terminals IPI and IP2 passes through the input lens IA and IB, respectively, and the mirror body 2A. Mirror surface A
, B, further passes through output rod lenses IC and ID, and is output as output light from output terminals OPI and OP2.

入力端子ＩＰＩへの入力光は、ステーションの挿入位置
の前部の光フアイバーケーブルからのものであり、また
、出力端子ＯＰ２からの出力光は、後部の光フアイバー
ケーブルに対するものであって、当該ステーションから
所望の光通信情報が中継される。The input light to the input terminal IPI is from the optical fiber cable at the front of the insertion position of the station, and the output light from the output terminal OP2 is from the optical fiber cable at the rear of the station. Desired optical communication information is relayed from there.

すなわち、出力端子ＯＰＩからの出力光は、当該ステー
ションに入力され、所要の増幅、信号付加等を受け、そ
の出力光は、入力端子ＩＰ２への入力光となる。That is, the output light from the output terminal OPI is input to the station, undergoes necessary amplification, signal addition, etc., and the output light becomes the input light to the input terminal IP2.

ここで、そのステーションをロー力ルネットワ−りから
切シ離すために、例えば、鏡体２Ａを破線の位置まで水
平移動をすると、入力端子ＩＰＩからの入力光は、その
まま入力ロットレンズＩＡ。If, for example, the mirror body 2A is moved horizontally to the position indicated by the broken line in order to disconnect the station from the low power network, the input light from the input terminal IPI will be directly transmitted to the input power lens IA.

出力ロットレンズＩＤを通過し、出力端子ＯＰ２から出
力光として出力されるので、ローカルネットワークのル
ープは保たれてシステムの稼動に影響を与えることがな
い。Since the light passes through the output lot lens ID and is output as output light from the output terminal OP2, the loop of the local network is maintained and the operation of the system is not affected.

しかしながら、当該ステーションの入力側、出力側の間
は、光接続がなされないので、そのままでは、所望の試
験、自己チェック等をすることができない。However, since no optical connection is made between the input side and output side of the station, desired tests, self-checks, etc. cannot be performed as is.

したがって、他の光スィッチその他所要のものを用いて
上記入力側、出力側の間の光接続をしなければならず、
このような試験、自己チェック等専用のデバイスの設定
を必要とし、煩雑であった。Therefore, it is necessary to make an optical connection between the input side and output side using other optical switches and other necessary devices.
Such tests and self-checks require the setting of a dedicated device, which is complicated.

本発明の目的は、上記した従来技術の欠点をなくシ、例
えば、ローカルネット？−りのループ状態保持を行い、
かつ、ステーションの自己チェック等を簡易に行うこと
ができる経済的な２人力。It is an object of the present invention to eliminate the above-mentioned drawbacks of the prior art, for example, in a local network. - maintains the loop state,
Moreover, it is an economical two-person operation that can easily perform station self-checks.

２出力の光スィッチを提供することにある。The objective is to provide a two-output optical switch.

本発明の特徴は、２人力光それぞれに対応する入力ロッ
トレンズと、２出力光それぞれに対応する出力ロッドレ
ンズとを有し、それらの光軸が同一平面上にあるように
配設し、上記各ロッドレンズの径に比べて充分に薄い板
状の両面平面鏡を、上記各入力ロッドレンズの光軸を含
む平面に対して直角な当該光軸間２等分平面上で当該光
軸交差点を含む位置に挿入し、または当該光軸交差点を
含まない位置へ除去しうるように構成した光スィッチに
ある。The present invention is characterized by having an input rod lens corresponding to each of the two human-powered lights and an output rod lens corresponding to each of the two output lights, arranged so that their optical axes are on the same plane, and A plate-shaped double-sided plane mirror that is sufficiently thinner than the diameter of each rod lens is placed on a plane that bisects the optical axes, which is perpendicular to the plane that includes the optical axes of each input rod lens, and includes the intersection of the optical axes. The optical switch is configured such that it can be inserted into a position or removed to a position that does not include the optical axis intersection.

これを要するに、上記両面平面鏡を上記交差点の位置に
関して挿入、除去することにより、２人力光に対応すべ
き各出力光の出力経路が上記両面平面鏡の挿入、除去に
応じて相互に他方へ切り換るようにするものである。In short, by inserting and removing the double-sided plane mirror with respect to the intersection position, the output paths of the respective output lights that correspond to the two-man power beam are mutually switched to the other according to the insertion and removal of the double-sided plane mirror. The purpose is to ensure that

以下、本発明の実施例を図に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.

第２図は、本発明に係る光スィッチの一実施例の原理構
成図である。FIG. 2 is a diagram showing the principle configuration of an embodiment of the optical switch according to the present invention.

ここで、ＬＡ、ＩＢは、入力端子ＩＰＩ、ＩＰ２からの
入力に対して所望の集光等をする入力ロットレンズ、Ｉ
Ｃ９ＩＤは、入力ロッドレンズＩＡ。Here, LA and IB are input rotary lenses, I
C9ID is input rod lens IA.

ＩＢを通過した直接光、まだは両面平面鏡２での当該反
射光の集光等をして出力端子ＯＰＩ、ＯＰ２から出力光
を送出するための出力ロットレンズである。This is an output lens for condensing the direct light passing through the IB and the reflected light from the double-sided plane mirror 2, and sending out the output light from the output terminals OPI and OP2.

各ロッドレンズＩＡ、ＩＢ、ＩＣ，ＬＤの光軸（例えば
、それらの中心軸）は、同一平面上にあって、例えば、
入カロットレンズＩＡ、出カロットレンズＩＤおよび同
ＩＢ、ＩＣの光軸は、それぞれ、一致している。The optical axes (for example, their central axes) of each rod lens IA, IB, IC, and LD are on the same plane, and, for example,
The optical axes of the input calot lens IA, the output calot lens ID, IB, and IC coincide with each other.

また、両面平面鏡２は、その厚さが谷ロッドレンズＩＡ
〜ＩＤの径に比べて充分に薄く、上記各光軸を含む平面
に対して直角な当該光軸間２等分平面上で当該光軸交差
点Ｏを中心点として含む位置に挿入されたときに、その
両反射面Ａ、Ｂからの反射光の光軸と上記各ロッドレン
ズＩＡ、ＩＢ。Moreover, the double-sided plane mirror 2 has a thickness equal to that of the valley rod lens IA.
- Sufficiently thin compared to the diameter of the ID, when inserted at a position that includes the optical axis intersection point O as the center point on a plane that bisects the optical axes at right angles to the plane that includes each of the optical axes. , the optical axis of the reflected light from both reflecting surfaces A and B, and each of the above-mentioned rod lenses IA and IB.

ＩＣ，ＬＤの光軸との間隔が当該集光作用等によって実
用上無視しうる程度となるように選定する。The distance between the IC and the optical axis of the LD is selected so that it can be ignored in practical terms due to the light condensing effect and the like.

なお、上記光軸の関係については、上述とは逆に、両面
平面鏡２の入射光２反射光の光軸が、それぞれ、入力ロ
ンドレンズＩＡ、出カロットレンズＩＣおよび同ＩＢ、
ＩＤの光軸と一致するようにしても実用上回等であるこ
とは明らかである。Regarding the relationship of the optical axes, contrary to the above, the optical axes of the incident light 2 reflected light of the double-sided plane mirror 2 are the input Rondo lens IA, the output Karot lens IC, and the output Karot lens IB, respectively.
It is clear that even if the optical axis is made to coincide with the optical axis of the ID, this is more than practical.

まず、両面平面鏡２が第２図の実線で示すように上記光
軸交差点Ｏを含む位置（挿入状態）にあるときは、入力
端子ＩＰＩ、ＩＰ２からの各入力光は、それぞれ、入カ
ロットレンズＩＡ、ＩＢｔ−通過して両面平面鏡２の鏡
面Ａ、Ｈに同一人射角α（０°〈α〈９０°）で入射し
、また、同一反射角αで反射して出力ロットレンズＩＣ
，ＩＤを通過し、出力端子ＯＰＩ、ＯＰ２から出力光と
して送出される。First, when the double-sided plane mirror 2 is in a position (inserted state) including the optical axis intersection O as shown by the solid line in FIG. , IBt- passes through and enters the mirror surfaces A and H of the double-sided plane mirror 2 at the same angle of incidence α (0° < α < 90°), and is reflected at the same reflection angle α and outputs the lot lens IC.
, ID, and is sent out as output light from output terminals OPI and OP2.

次に、例えば、両面平面鏡２が第２図の破線で示すよう
に上記光軸の交差点０を含まない位置（交差点Ｏを含ま
なければ任意の位置でよく、これを除去状態という。）
にあるときは、入力端子ＩＰＩ、ＩＰ２からの各入力光
は、それぞれ、入力ロットレンズＩＡ、ＩＢを通過し、
そのまま対向する出力ロットレンズＬＤ、ＩＣを通過し
て出力端子ＯＰ２．ＯＰＩから出力光として送出される
。Next, for example, the double-sided plane mirror 2 is placed at a position that does not include the intersection point 0 of the optical axis, as shown by the broken line in FIG.
, each input light from input terminals IPI and IP2 passes through input lenses IA and IB, respectively,
It passes through the opposing output lens LD and IC and is connected to the output terminal OP2. It is sent out as output light from OPI.

このようにすると、例えば、前述のローカルネットワー
クにおいて、両面平面鏡２が挿入状態のときは、入力端
子ＩＰＩ、出力端子０Ｐ２（ｔだは同ＩＰ２，０ＰＩ）
および出力端子ＯＰＩ、入力端子ＩＰ２　（または同Ｏ
Ｐ２．ＩＰＩ）を介してステーション、光フアイバーケ
ーブル間の結合をすることができ、また、両面平面鏡２
が除去状態のときは、光フアイバーケーブルは、入力端
子ＩＰＩ、出力端子０Ｐ２（まだは同ＩＰ２，０ＰＩ）
を通してスルー状態になるとともに、当該ステーション
は、その入出力側が入力端子ＩＰ２．出力端子０ＰＩ（
または同Ｉｐｌ、０Ｐ２）を通して光接続をされ、所要
の試験、自己チェック等を行うことができる。In this way, for example, in the above-mentioned local network, when the double-sided plane mirror 2 is inserted, the input terminal IPI and the output terminal 0P2 (t is the same IP2, 0PI)
and output terminal OPI, input terminal IP2 (or same O
P2. The connection between the station and the optical fiber cable can be made via IPI), and the double-sided plane mirror 2
When is in the removed state, the optical fiber cable has input terminal IPI and output terminal 0P2 (still the same IP2, 0PI).
At the same time, the station enters the through state through the input terminal IP2. Output terminal 0PI (
Optical connections can be made through the IPL, 0P2) and necessary tests, self-checks, etc. can be performed.

このように、両面平面鏡２の挿入、除去により、ステー
ションの光フアイバーケーブルに係る挿入・接続、切離
しを容易に極めて短時間で行うことが可能となり、ロー
カルネットワークに与える信号断等の影響を少なくする
ことができる。In this way, by inserting and removing the double-sided plane mirror 2, it becomes possible to easily insert, connect, and disconnect the optical fiber cable of the station in an extremely short time, thereby reducing the effects of signal interruptions, etc. on the local network. be able to.

なお、両面平面鏡２は、機構的に移動して光接続の切換
えを行うものでなく、液晶等の物質を用い、そのままの
位置で電圧制御等によって反射。Note that the double-sided plane mirror 2 does not move mechanically to switch optical connections, but instead uses a substance such as liquid crystal, and reflects light at the same position by voltage control or the like.

無反射（上記機構的な挿入、除去に相当する。）となる
ようなものとすることができるのは明らかである。It is clear that it can be made to be non-reflective (corresponding to the mechanical insertion and removal described above).

以上、詳細に説明したように、本発明によれば、簡単で
経済的な光スィッチを実現することができ、特に、ロー
カルネットワーク用として、そのループ保持を行いつつ
、ステーションの自己チェック等を簡易に行うことがで
きるなど、顕著な効果が得られる。As described in detail above, according to the present invention, it is possible to realize a simple and economical optical switch, and in particular, for local networks, it is possible to easily perform self-checks of stations while maintaining the loop. Remarkable effects can be obtained, such as being able to perform

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、従来の光スィッチの一例の原理構成図、第２
図は、本発明に係る光スィッチの一実施例の原理構成図
である。 ＬＡ、ＩＢ・・・入カロッ′：：：ドレンズ、ＩＣ，Ｉ
Ｄ・・・出力ロットレンズ、２・・・両面平面鏡。 代理人　弁理士　福田幸作 （ほか１名）Figure 1 is a principle configuration diagram of an example of a conventional optical switch;
The figure is a principle configuration diagram of an embodiment of an optical switch according to the present invention. LA, IB...Input '::: Drains, IC, I
D...Output lens, 2...Double-sided plane mirror. Agent: Patent attorney Kosaku Fukuda (and one other person)

Claims (1)

【特許請求の範囲】[Claims] １．２人力光それぞれに対応する入力ロッドレンズと、
２出力光それぞれに対応する出力ロットレンズとを有し
、それらの光軸が同一平面上にあるように配設し、上記
各ロッドレンズの径に比べて充分に薄い板状の両面平面
鏡を、上記各入力ロッドレンズの光軸を含む平面に対し
て直角な当該光軸間２等分子面上で当該光軸交差点を含
む位置に挿入し、または当該光軸交差点を含まない位置
へ除去しうるように構成したことを特徴とする光スィッ
チ。1. Input rod lens corresponding to each of the two human-powered lights,
A plate-shaped double-sided plane mirror having output rod lenses corresponding to each of the two output lights, arranged so that their optical axes are on the same plane, and which is sufficiently thinner than the diameter of each rod lens, The input rod lens can be inserted at a position including the optical axis intersection on the isometric plane between the optical axes perpendicular to the plane containing the optical axis of each of the input rod lenses, or removed to a position not including the optical axis intersection. An optical switch characterized in that it is configured as follows.
JP604482A 1982-01-20 1982-01-20 Optical switch Pending JPS58123502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP604482A JPS58123502A (en) 1982-01-20 1982-01-20 Optical switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP604482A JPS58123502A (en) 1982-01-20 1982-01-20 Optical switch

Publications (1)

Publication Number Publication Date
JPS58123502A true JPS58123502A (en) 1983-07-22

Family

ID=11627624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP604482A Pending JPS58123502A (en) 1982-01-20 1982-01-20 Optical switch

Country Status (1)

Country Link
JP (1) JPS58123502A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645283A1 (en) * 1989-03-31 1990-10-05 Gen Electric Cgr OPTICAL DISTRIBUTOR WITH ROTATING MIRROR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645283A1 (en) * 1989-03-31 1990-10-05 Gen Electric Cgr OPTICAL DISTRIBUTOR WITH ROTATING MIRROR
US5107367A (en) * 1989-03-31 1992-04-21 General Electric Cgr Sa Optical distributor with rotating mirror

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