JPS62102219A - Optical transmission equipment with optical by-pass mechanism - Google Patents

Optical transmission equipment with optical by-pass mechanism

Info

Publication number
JPS62102219A
JPS62102219A JP24131485A JP24131485A JPS62102219A JP S62102219 A JPS62102219 A JP S62102219A JP 24131485 A JP24131485 A JP 24131485A JP 24131485 A JP24131485 A JP 24131485A JP S62102219 A JPS62102219 A JP S62102219A
Authority
JP
Japan
Prior art keywords
optical
light
port
optical axis
reflector
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
JP24131485A
Other languages
Japanese (ja)
Inventor
Satoshi Takebe
武部　智
Masayuki Sugizaki
雅之 杉崎
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.)
Toshiba Corp
Toshiba Development and Engineering Corp
Original Assignee
Toshiba Corp
Toshiba Electronic Device Engineering Co 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 Toshiba Corp, Toshiba Electronic Device Engineering Co Ltd filed Critical Toshiba Corp
Priority to JP24131485A priority Critical patent/JPS62102219A/en
Publication of JPS62102219A publication Critical patent/JPS62102219A/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
    • G02B6/3586—Control or adjustment details, e.g. calibrating
    • 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
    • G02B6/3562—Switch of the bypass type, i.e. enabling a change of path in a network, e.g. to bypass a failed element in the network
    • 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
    • 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
    • G02B6/3598—Switching means directly located between an optoelectronic element and waveguides, including direct displacement of either the element or the waveguide, e.g. optical pulse generation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To attain rapid switching with a small coupling loss, to reduce the size of equipment and to improve the reliability of the equipment by transmitting an optical signal from an incident port and optical signals from the incident port and a light emitting element to a projecting port. CONSTITUTION:When a reflector 16 is positioned on the intersected part 23 of optical axes 21, 22, rays of light along the optical axis of a light incident port 20 are reflected by the reflector 16 and projected from a light projecting port 19 along the optical axis 21. When the reflector 16 is located on a position where the optical axes 21, 22 are not interrupted by the reflector 16, the optical signal from the port 20 is made incident upon a photodetecting element 15 along the optical axis 22, converted into an electric signal by an optical receiver 13 and transmitted to the external and the electric signal from the external is outputted from a light emitting element 14 in an optical transmitter 12 to the port 19 through the optical axis 21. Consequently, the coupling loss can be reduced, high speed switching operation can be attained, the size can be reduced and high reliability can be satisfied.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、例えば光通信ネットワークにおける局として
使用するのに好適な光バイパス機構付き光伝送装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an optical transmission device with an optical bypass mechanism suitable for use as a station in an optical communication network, for example.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

従来、光通信ネットワークにおける局は第３図及び第４
図に示すようになっている。Traditionally, stations in optical communication networks are
It is as shown in the figure.

先ず、局として使用する時の動作を第３図により説明す
る。この局は図に示すように光スィッチ■と光送信器■
及び先受（８１１９■とから構成され、例えば中継局と
して動作している場合、光スィッチ（υには第１の伝送
路（４１）からの光入力（Ｆｉ号を第１の光ファイバ（
９１）を介して光受信器■へ人力させ電気信号に変換さ
れる。そして、この電気（＋’を号は光送信器■により
再度光信号に変換され、第２の光ファイバ（９，）、第
２の光入力ポート（５□）からプリズム■を介して第１
の出力ポート（６，）を経て光出力として第２の伝送路
（４２）へ送信され、後続の局へ送信される。図におい
て（８）はプリズム■を移動させる駆動機構である。First, the operation when used as a station will be explained with reference to FIG. This station consists of an optical switch ■ and an optical transmitter ■ as shown in the figure.
and a pre-receiver (8119■).For example, when operating as a relay station, the optical switch (υ) connects the optical input (Fi) from the first transmission line (41) to the first optical fiber (
91) to the optical receiver (2), where it is converted into an electrical signal. Then, this electricity (+' sign) is converted into an optical signal again by the optical transmitter ■, and is transmitted from the second optical fiber (9,) and the second optical input port (5□) to the first signal through the prism ■.
It is transmitted as optical output to the second transmission line (42) through the output port (6,) of , and is transmitted to the subsequent station. In the figure, (8) is a drive mechanism that moves the prism (2).

このような局において局のシステムに故障が発生した場
合には、光スィッチ■のプリズム■を駆動機構（８）に
より移動して、第４図の状態に切替え、第１の伝送路（
４１）に接続される第１の光入力ポート（５，）からの
光入力信号を直接筒１の出力ポート（６，）から第２の
伝送路（４□）を介して後続の局へ送信されるようにな
っている。If a failure occurs in the station system at such a station, the prism (2) of the optical switch (2) is moved by the drive mechanism (8) to switch to the state shown in Fig. 4, and the first transmission line (
The optical input signal from the first optical input port (5,) connected to 41) is directly transmitted from the output port (6,) of tube 1 to the subsequent station via the second transmission line (4□). It is now possible to do so.

従って、このような光通信ネットワークの各局は全体と
して光スイッチ■、光送信器■、光受信器■及び光ファ
イバ（９，）、（９□）を組み合わせたシステムとなっ
ている。Therefore, each station in such an optical communication network as a whole is a system that combines an optical switch (2), an optical transmitter (2), an optical receiver (2), and optical fibers (9,), (9□).

このため従来のシステムでは次のような問題点がある。Therefore, the conventional system has the following problems.

第１に伝送路（４，）、（４□）と光送信器■及び光受
信器■を結合するに当り、プリズム■を介する光スィッ
チ■が介在するため、光スィッチ■の挿入損失がそのま
ま加わり、その結果、伝送路（４□）。First, when coupling the transmission lines (4,), (4□) with the optical transmitter ■ and optical receiver ■, an optical switch ■ via a prism ■ is involved, so the insertion loss of the optical switch ■ remains unchanged. As a result, the transmission line (4□).

（４２）への結合損失が大きくなる。The coupling loss to (42) increases.

第２に光スィッチ■において、プリズム■を移動してい
るため、移動体の重量、外形が大きくなり高速切替動作
に非常に不利である。Secondly, in the optical switch (2), since the prism (2) is moved, the weight and external size of the moving body become large, which is very disadvantageous for high-speed switching operation.

第３にシステムを構成する部品点数が多く、設置面積を
多く取り、また信頼性の低下を招く。Thirdly, the number of parts constituting the system is large, requiring a large installation area, and lowering reliability.

〔発明の目的〕[Purpose of the invention]

本発明は上述の問題点に鑑みてなされたものであり、特
に結合損失を小さくでき、高速切替動作の可能な小型か
つ高信頼性を満足することが可能な光バイパス機構付き
光伝送装置を提供することを目的としている。The present invention has been made in view of the above-mentioned problems, and provides an optical transmission device with an optical bypass mechanism that can reduce coupling loss, perform high-speed switching operation, be compact, and satisfy high reliability. It is intended to.

〔発明の概要〕[Summary of the invention]

即ち１本発明は第１の光軸を有する光入射ポート及び第
１の光軸と交差部を形成する第２の光軸を有する光出射
ポートを備える筐体と、筐体内に装着され交差後の第１
の光軸及び第２の光軸上にそれぞれ配設された受光素子
及び発光素子と、交差部を第１の位置とし、第１の光軸
と第２の光軸を妨げない筐体内を第２の位置とするよう
に駆動機構により移動させ得る反射鏡とを具備し１反射
鏡が第１の位置にあるとき光入射ポートからの光信号が
出射ポートに伝送され９反射鏡が第２の位置にあるとき
、光入射ポートからの光信号が出射ポートに伝送される
と共に発光素子からの光信号が光出射ポートに伝送され
るようになされていることを特徴とする光バイパス機構
付き光伝送装置である。That is, 1 the present invention provides a housing including a light entrance port having a first optical axis and a light exit port having a second optical axis forming an intersection with the first optical axis; the first of
The light-receiving element and the light-emitting element are arranged on the optical axis and the second optical axis, respectively, and the intersection is the first position, and the first optical axis and the second optical axis are arranged inside the housing without interfering with each other. and a reflecting mirror that can be moved by a drive mechanism so that the reflecting mirror is in the second position.When the reflecting mirror 1 is in the first position, the optical signal from the light input port is transmitted to the output port, and the reflecting mirror optical transmission with an optical bypass mechanism, characterized in that when the light is in the position, the optical signal from the optical input port is transmitted to the optical output port, and the optical signal from the light emitting element is transmitted to the optical output port. It is a device.

〔発明の実施例〕[Embodiments of the invention]

次に本発明の光バイパス機構付き光伝送装置の一実施例
を第１図及び第２図により説明する。Next, an embodiment of the optical transmission device with an optical bypass mechanism of the present invention will be described with reference to FIGS. 1 and 2.

即ち、外部伝送路の光コネクタと接続される光入射ポー
ト（２０）　、光出射ポート（１９）を備えた筐体（１
１）内には駆動機ｍ（１７）、発光素子（１４）を含む
光送信器（１２）と、受光素子（１５）を含む光受信器
（１３）が固定されている。これらの固定位置は光出射
ポート（１９）の光軸と発光素子（１４）の光軸とが第
１の光軸（２１）上にあり、光入射ポート（２０）の光
軸と受光素子（１５）の光軸とが第２の光軸（２ｚ）上
にあり。That is, the housing (1) includes a light input port (20) and a light output port (19) connected to an optical connector of an external transmission line.
1), a driver m (17), an optical transmitter (12) including a light emitting element (14), and an optical receiver (13) including a light receiving element (15) are fixed. These fixed positions are such that the optical axis of the light output port (19) and the optical axis of the light emitting element (14) are on the first optical axis (21), and the optical axis of the light input port (20) and the optical axis of the light receiving element ( 15) is on the second optical axis (2z).

また、この第１の光軸（２１）と第２の光軸とは同じ面
上にあるため交差部（２３）も平面交差するようになっ
ている。また、光損失を少なくするため光入射ポート（
ｚＯ）、光出射ポート（１９）、発光素子（１４）。Further, since the first optical axis (21) and the second optical axis are on the same plane, the intersection part (23) also intersects in the plane. In addition, in order to reduce optical loss, the optical input port (
zO), a light exit port (19), and a light emitting element (14).

受光素子（１５）の各光軸に沿って、それぞれロッドレ
ンズ（１８）が設けられている。A rod lens (18) is provided along each optical axis of the light receiving element (15).

また、駆動機構（１７）により作動される可動体（２４
）には反射鏡（１６）が固定されており、この反射鏡（
１６）は駆動機構（１７）により光軸（２１）　、　（
２２）の交差部（２３）を第１の位置とし、光軸（２１
）、　（２２）を妨げない部位を第２の位置とするよう
になっている。Moreover, the movable body (24) operated by the drive mechanism (17)
) is fixed with a reflecting mirror (16), and this reflecting mirror (
16) is the optical axis (21), (
The intersection (23) of the optical axis (22) is the first position, and the optical axis (21
), (22) is set as the second position.

このような構造にする二とにより第１図のように反射ｊ
１ｍ（１６）が第１の位置にある時は光入射ポート（２
０）からの光軸（２２）に沿った光は反射鏡（１６）で
反射され光軸（２１）に沿って光出射ポート（１９）か
ら出て行く、即ち、この状態では光伝送装置はバイパス
機能を持つことになる。By creating such a structure, the reflection j as shown in Fig.
When 1m (16) is in the first position, the light entrance port (2
The light along the optical axis (22) from 0) is reflected by the reflecting mirror (16) and exits from the light output port (19) along the optical axis (21), that is, in this state, the optical transmission device It will have a bypass function.

また、第２図のように反射鏡（１６）を光軸（２１）。Also, as shown in Figure 2, the reflecting mirror (16) is aligned with the optical axis (21).

（２２）を妨げない第２の位置に駆動機構（１７）で移
動すると、光入射ポート（２０）からの光信号は光軸（
２２）に沿って受光素子（１５）に入り、この受光素子
（１５）に入射した光信号は光受信器（１３）により電
気信号に変換されて外部に伝送され、また外部からの電
気４Ｒ号は光送信器（１２）の発光素子（１４）から光
軸（２１）を通り光出射ポート（１９）から出て行く、
つまり、この状態では、光送信器（１２）と光受信器（
１３）は外部伝送回路と接続され、光通信ネットワーク
における局、例えば中継局として動作されている。When the drive mechanism (17) moves the optical signal from the optical input port (20) to the second position where the optical axis (22) is not obstructed, the optical signal from the optical axis (
22) and enters the light receiving element (15), and the optical signal incident on the light receiving element (15) is converted into an electrical signal by the optical receiver (13) and transmitted to the outside. passes from the light emitting element (14) of the optical transmitter (12) through the optical axis (21) and exits from the light output port (19).
In other words, in this state, the optical transmitter (12) and the optical receiver (
13) is connected to an external transmission circuit and operates as a station in an optical communication network, for example a relay station.

〔発明の効果〕〔Effect of the invention〕

上述のように本発明の光バイパス機端付き光伝送装置に
よれば、電気信号を光信号に変換して光出射ポートから
出すまでの光損失、または光入射ポートから入った光信
号を電気信号に変換するまでの光損失またはバイパス時
の光入射ポートから入った光４Ｒ号が光出射ポートから
出るまでの光損失は、いずれも２個のロッドレンズ間だ
けの光損失となり、光挿入損失を小さくすることが可能
であり、伝送距離を伸ばすことができる。また、駆動機
構も反射鏡をほぼ光ビーム径だけ移動させればよいので
可動体を小さく、かつ軽くできる。また移動量も少ない
ために駆動機構も簡単な構造にできる。また、光スイツ
チ機能と光電変換機能を兼ね備えた光バイパス機構付き
光伝送装置であるから小型化ができ、信頼性も向上する
。As described above, according to the optical transmission device with an optical bypass terminal of the present invention, there is no optical loss between converting an electrical signal into an optical signal and outputting it from the optical output port, or converting an optical signal input from the optical input port into an electrical signal. The optical loss until the light 4R enters from the optical input port during bypass and exits from the optical output port is the optical loss only between the two rod lenses, and the optical insertion loss is It can be made smaller and the transmission distance can be extended. Furthermore, since the drive mechanism only needs to move the reflecting mirror by approximately the diameter of the light beam, the movable body can be made smaller and lighter. Furthermore, since the amount of movement is small, the drive mechanism can also be of a simple structure. Furthermore, since it is an optical transmission device with an optical bypass mechanism that has both an optical switch function and a photoelectric conversion function, it can be made smaller and its reliability is improved.

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

第１図及び第２図は本発明の光バイパス機構付き光伝送
装置の一実施例を示す図であり、第１図はバイパス時の
各部の位置関係を示す説明図、第２図は局として動作時
の各部の位置関係を示す説明図、第３ｒｊ！ｉ及び第４
図は従来の光バイパス機構付き光伝送装置の一例を示す
図であり、第３図は局として動作時の各部の位置関係を
示す説明図。 第４図はバイパス時の各部の位置関係を示す説明図であ
る。1 and 2 are diagrams showing an embodiment of the optical transmission device with an optical bypass mechanism of the present invention, FIG. 1 is an explanatory diagram showing the positional relationship of each part during bypass, and FIG. Explanatory diagram showing the positional relationship of each part during operation, 3rd rj! i and 4th
The figure is a diagram showing an example of a conventional optical transmission device with an optical bypass mechanism, and FIG. 3 is an explanatory diagram showing the positional relationship of each part when operating as a station. FIG. 4 is an explanatory diagram showing the positional relationship of each part during bypass.

Claims (1)

【特許請求の範囲】[Claims] 第１の光軸を有する光入射ポート及び前記第１の光軸と
交差部を形成する第２の光軸を有する光出射ポートを備
える筐体と、前記筐体内に装着され交差後の前記第１の
光軸及び前記第２の光軸上にそれぞれ配設された受光素
子及び発光素子と、前記交差部を第１の位置とし、前記
第１の光軸と前記第２の光軸を妨げない前記筐体内を第
２の位置とするように駆動機構により移動させ得る反射
鏡とを具備し、前記反射鏡が前記第１の位置にあるとき
前記光入射ポートからの光信号が前記光出射ポートに伝
送され、前記反射鏡が前記第２の位置にあるとき、前記
光入射ポートからの光信号が前記光出射ポートに伝送さ
れると共に前記発光素子からの光信号が前記光出射ポー
トに伝送されるようになされていることを特徴とする光
バイパス機構付き光伝送装置。a casing including a light entrance port having a first optical axis and a light exit port having a second optical axis forming an intersection with the first optical axis; a light-receiving element and a light-emitting element disposed on the first optical axis and the second optical axis, respectively, and the intersection is set as a first position, and the first optical axis and the second optical axis are obstructed. a reflecting mirror that can be moved by a drive mechanism to a second position within the housing, and when the reflecting mirror is in the first position, the optical signal from the light input port is transmitted to the light output port. port, and when the reflecting mirror is in the second position, the optical signal from the light input port is transmitted to the light output port, and the optical signal from the light emitting element is transmitted to the light output port. 1. An optical transmission device with an optical bypass mechanism.
JP24131485A 1985-10-30 1985-10-30 Optical transmission equipment with optical by-pass mechanism Pending JPS62102219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24131485A JPS62102219A (en) 1985-10-30 1985-10-30 Optical transmission equipment with optical by-pass mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24131485A JPS62102219A (en) 1985-10-30 1985-10-30 Optical transmission equipment with optical by-pass mechanism

Publications (1)

Publication Number Publication Date
JPS62102219A true JPS62102219A (en) 1987-05-12

Family

ID=17072447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24131485A Pending JPS62102219A (en) 1985-10-30 1985-10-30 Optical transmission equipment with optical by-pass mechanism

Country Status (1)

Country Link
JP (1) JPS62102219A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004803A1 (en) * 1988-10-24 1990-05-03 Australian Optical Fibre Research Pty Limited Optical switch
US5440655A (en) * 1993-12-29 1995-08-08 At&T Corp. Optical fiber connector bypass device and method using same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106404A (en) * 1979-02-08 1980-08-15 Mitsubishi Electric Corp Photo switch
JPS56137305A (en) * 1980-03-31 1981-10-27 Mitsubishi Electric Corp By-pass optical switch
JPS60112018A (en) * 1983-11-24 1985-06-18 Toshiba Corp Optical switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106404A (en) * 1979-02-08 1980-08-15 Mitsubishi Electric Corp Photo switch
JPS56137305A (en) * 1980-03-31 1981-10-27 Mitsubishi Electric Corp By-pass optical switch
JPS60112018A (en) * 1983-11-24 1985-06-18 Toshiba Corp Optical switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004803A1 (en) * 1988-10-24 1990-05-03 Australian Optical Fibre Research Pty Limited Optical switch
US5440655A (en) * 1993-12-29 1995-08-08 At&T Corp. Optical fiber connector bypass device and method using same

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