JPH0213011A - Light switch - Google Patents

Light switch

Info

Publication number
JPH0213011A
JPH0213011A JP63161016A JP16101688A JPH0213011A JP H0213011 A JPH0213011 A JP H0213011A JP 63161016 A JP63161016 A JP 63161016A JP 16101688 A JP16101688 A JP 16101688A JP H0213011 A JPH0213011 A JP H0213011A
Authority
JP
Japan
Prior art keywords
signal
light
circuit
emitting element
switching
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
JP63161016A
Other languages
Japanese (ja)
Inventor
Nobuyuki Tanaka
信行 田中
Takashi Kase
加瀬 隆
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.)
NEC Engineering Ltd
Original Assignee
NEC Engineering 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 NEC Engineering Ltd filed Critical NEC Engineering Ltd
Priority to JP63161016A priority Critical patent/JPH0213011A/en
Publication of JPH0213011A publication Critical patent/JPH0213011A/en
Pending legal-status Critical Current

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  • Electronic Switches (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To exclude a mechanical action part from a light switch, to execute a high-speed switching, to lengthen a lifetime, and simultaneously, to increase a reliability by converting a light signal to an electric signal once, thereafter, executing the switching, converting the electric signal to the light signal again, and outputting it. CONSTITUTION:A light input signal is inputted from a fiber 1 for an input and converted to the electric signal by a light-receiving element 2. The converted electric signal is amplified by an amplifying circuit 3 and sent to one or plural number of electric switching circuits 4. The electric switching circuit 4 is turned on and off in receiving the signal of ON or OFF from a control circuit 5. The electric switching circuit 4 sends the electric signal to a light-emitting element driving circuit 6 at a next stage. The light-emitting element driving circuit 6 is composed to drive a light-emitting element 7, and the same light signal as the light input signal inputted from the fiber 1 for the input is outputted from a fiber 8 for an output. The signals of ON and OFF outputted from the control circuit 5 are freely set by inputting a digital signal 9 from an external part.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はファイバ伝送回路や端末装置等の切り換えに用
いられる光スィッチに係わり、特に機械的な動作を伴な
わずに光伝送路の切り換えを行うことのできる無接点式
光スィッチに関する。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an optical switch used for switching fiber transmission circuits, terminal devices, etc. This invention relates to a non-contact type optical switch that can be used.

〔従来の技術〕[Conventional technology]

従来、この種の光スィッチとしては、プリズムまたは反
射板等を電磁石等で動かして光伝送路の切り換えを行う
機械的スイッチング構造が知られている。
Conventionally, as this type of optical switch, a mechanical switching structure is known in which an optical transmission path is switched by moving a prism or a reflecting plate using an electromagnet or the like.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

しかしながら、上述した従来の光スィッチにあっては主
として次のような欠点を有していた。
However, the above-mentioned conventional optical switch mainly has the following drawbacks.

すなわち、光スィッチは機械的な動作を伴うため、スイ
ッチング速度が機械部分によって制限され、高速スイッ
チングができないという不具合がある。
That is, since the optical switch involves mechanical operation, the switching speed is limited by the mechanical part, and there is a problem that high-speed switching cannot be performed.

このことは、将来LAN(o−カル靭アネットワーク)
等で高速データ伝送を行うことが必要になったとき、光
スィッチがネットワーク高速化の大きな妨げとなる。ま
た、機械的なスイッチング構造のため、機械部が摩耗す
るため寿命が短い。更に、塵や埃、摩耗による動作不良
や光学系のくもり、汚れ等による損失の増加および振動
による誤動作や破損等が伴うので、信頼性が低いという
問題もあった。
This means that the future LAN (o-Cal network)
When it becomes necessary to perform high-speed data transmission in applications such as networks, optical switches become a major hindrance to speeding up the network. Furthermore, because of the mechanical switching structure, the mechanical parts wear out, resulting in a short lifespan. Furthermore, there is also the problem of low reliability, as malfunctions due to dirt and abrasion, increased loss due to fogging and contamination of the optical system, and malfunctions and damage due to vibrations occur.

本発明の目的は上述した不具合等に鑑みてなされたもの
で、高速スイッチングが可能で、しかも寿命を長くする
ことができ、更に信頼性の高い光スィッチを提供するこ
とにある。
The object of the present invention was made in view of the above-mentioned problems, and it is an object of the present invention to provide an optical switch that is capable of high-speed switching, has a long service life, and is highly reliable.

〔課題を解決するための手段〕[Means to solve the problem]

前記目的を達成するために、本発明に係わる光スィッチ
は、光信号を電気信号に変換する受光素子と、この電気
信号を増幅する増幅回路と、この増幅回路に接続され、
増幅された電気信号が送られてくる電気的スイッチング
回路と、この電気的スイッチング回路に接続され電気信
号を光信号に変換する発光素子と、この発光素子を駆動
する発光素子駆動回路と、電気的スイッチング回路を制
御する制御回路とを備えた構成としたものである。
In order to achieve the above object, an optical switch according to the present invention includes a light receiving element that converts an optical signal into an electrical signal, an amplifier circuit that amplifies the electrical signal, and a light receiving element that is connected to the amplifier circuit,
An electrical switching circuit to which an amplified electrical signal is sent, a light-emitting element connected to this electrical switching circuit and converting the electrical signal into an optical signal, a light-emitting element drive circuit that drives this light-emitting element, and an electrical The configuration includes a control circuit that controls the switching circuit.

〔作用〕[Effect]

このように本発明は、非機械的スイッチング構造であり
、機械的動作部分を排除できるので、高速スイッチング
が可能であると共に寿命の長命化を図ることができ、し
かも信頼的にも高い光スィッチを製作できる。
As described above, the present invention has a non-mechanical switching structure and eliminates mechanical operating parts, so it is possible to achieve high-speed switching, extend the service life, and provide a highly reliable optical switch. Can be manufactured.

〔実施例〕〔Example〕

以下、図に示す実施例を用いて本発明の詳細な説明する
Hereinafter, the present invention will be explained in detail using embodiments shown in the drawings.

第1図は本発明に係わる光スィッチの一実施例を示すブ
ロック図である。光入力信号は入力用ファイバ1より入
力し、受光素子2で電気信号に変換されにようになって
いる。この変換された電気信号は、増幅回路3で増幅さ
れて、1個または複数個の電気的スイッチング回路4へ
送られる。
FIG. 1 is a block diagram showing an embodiment of an optical switch according to the present invention. An optical input signal is input through an input fiber 1 and converted into an electrical signal by a light receiving element 2. This converted electrical signal is amplified by an amplifier circuit 3 and sent to one or more electrical switching circuits 4.

一方、電気的スイッチング回路4は制御回路5に接続さ
れており、この制御回路5からONまたハOF Fの信
号を受けている。電気的スイッチング回路4が制御回路
5よりOFFの信号を受けている場合、この電気的スイ
ッチング回路4は電気的信号を止め、次段へは送らない
ようになっている。一方、電気的スイッチング回路4が
制御回路5からONの信号を受けている場合、この電気
的スイッチング回路4は電気信号を次段の発光素子駆動
回路6へ送る。
On the other hand, the electrical switching circuit 4 is connected to a control circuit 5 and receives an ON or OFF signal from the control circuit 5. When the electrical switching circuit 4 receives an OFF signal from the control circuit 5, the electrical switching circuit 4 stops the electrical signal and does not send the electrical signal to the next stage. On the other hand, when the electrical switching circuit 4 receives an ON signal from the control circuit 5, the electrical switching circuit 4 sends an electrical signal to the light emitting element drive circuit 6 at the next stage.

発光素子駆動回路6は発光素子7を駆動するように構成
されており、人力用ファイバ1より入力した光入力信号
と同じ光信号を出力用ファイバ8より出力するようにな
っている。なお、制御回路5より出力されるON、OF
Fの信号は外部よりディジタル信号9を人力することに
より自由に設定できる。
The light emitting element drive circuit 6 is configured to drive the light emitting element 7, and outputs from the output fiber 8 the same optical signal as the optical input signal inputted from the human power fiber 1. In addition, the ON, OF output from the control circuit 5
The F signal can be freely set by manually inputting the digital signal 9 from the outside.

以上述べたように、本発明の無接点光スィッチはディジ
タル信号9の設定により、人力用ファイバ1より人力し
た光信号を任意の出力用ファイバ8より出力することが
できる。
As described above, the non-contact optical switch of the present invention can output an optical signal manually generated from the human-powered fiber 1 to any output fiber 8 by setting the digital signal 9.

第2図は本発明の光スィッチの一実施例を示す斜視図で
ある。この第2図の無接点光スィッチは1人力、4出力
の例を示している。すなわち、第2図においては、1本
の入力用ファイバ1と4本の出力用ファイバ8を有して
おり、その他の構成部品はパッケージ10に格納された
構造となっている。第1図における制御用のディジタル
信号9は電気入力端子11より人力するようになってい
る。なお、内部回路群の電源は電源端子12より供給さ
れる。
FIG. 2 is a perspective view showing an embodiment of the optical switch of the present invention. The non-contact optical switch shown in FIG. 2 is an example of a one-man operation and four outputs. That is, in FIG. 2, there is one input fiber 1 and four output fibers 8, and the other components are housed in a package 10. The control digital signal 9 in FIG. 1 is manually inputted from an electrical input terminal 11. Note that power for the internal circuit group is supplied from the power supply terminal 12.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明に係わる光スィッチは、光信
号を一度電気信号に変換してからスイッチングを行い、
再び電気信号を光信号に変換して出力する非機械的構成
となっているので、光スィッチから機械的な動作部分を
排除することができる。従って、以下に示すような種々
な効果を有する。
As explained above, the optical switch according to the present invention converts an optical signal into an electrical signal and then performs switching.
Since it has a non-mechanical configuration that converts the electrical signal into an optical signal and outputs it again, mechanical operating parts can be eliminated from the optical switch. Therefore, it has various effects as shown below.

(i)電気的なスイッチングを行うため、従来の光スィ
ッチに較べて高速スイッチングが可能である。
(i) Since electrical switching is performed, high-speed switching is possible compared to conventional optical switches.

(ii )電気回路と光学部品のみによって構成できる
ため、従来の光スィッチに比べて寿命を十分長くするこ
とができる。
(ii) Since it can be constructed from only an electric circuit and optical components, it can have a sufficiently longer lifespan than conventional optical switches.

(iii )可動部分がないため、パッケージ内に樹脂
等で固定でき、塵や埃、振動に強く、信頼性の高い光ス
ィッチを製作できる。
(iii) Since there are no moving parts, it can be fixed in the package with resin, etc., making it possible to manufacture highly reliable optical switches that are resistant to dirt, dust, and vibration.

(iv )光出力を同時に複数の出力用ファイバより出
力したり、或いはどの出力用ファイバからも出力しない
ようにしたりすることができ、任意の組合けが可能なた
め、従来の光スィッチとは異なった使用方法も可能であ
る。
(iv) Optical output can be output from multiple output fibers at the same time, or not output from any output fiber, and any combination is possible, making it different from conventional optical switches. Usage methods are also possible.

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

第1図は本発明に係わる光スィッチの一実施例を示すブ
ロック図、第2図は同光スィッチの斜視図である。 1・・・・・・人力用ファイバ、2・・・・・・受光素
子、3・・・・・・増幅回路、 4・・・・・・電気的スイッチング回路、5・・・・・
・制御回路、6・・・・・・発光素子駆動回路、7・・
・・・・発光素子、8・・・・・・出力用ファイバ9・
・・・・・ディジタル信号、10・・・・・・パッケー
ジ。
FIG. 1 is a block diagram showing an embodiment of an optical switch according to the present invention, and FIG. 2 is a perspective view of the same optical switch. 1... Fiber for human power, 2... Light receiving element, 3... Amplifying circuit, 4... Electrical switching circuit, 5...
・Control circuit, 6... Light emitting element drive circuit, 7...
...Light emitting element, 8... Output fiber 9.
...Digital signal, 10...Package.

Claims (1)

【特許請求の範囲】 光信号を電気信号に変換する受光素子と、 この電気信号を増幅する増幅回路と、 この増幅回路に接続され、増幅された電気信号が送られ
てくる電気的スイッチング回路と、この電気的スイッチ
ング回路に接続され電気信号を光信号に変換する発光素
子と、 この発光素子を駆動する発光素子駆動回路と、前記電気
的スイッチング回路を制御する制御回路 とを具備したことを特徴とする光スイッチ。
[Claims] A light-receiving element that converts an optical signal into an electrical signal, an amplifier circuit that amplifies this electrical signal, and an electrical switching circuit connected to this amplifier circuit and to which the amplified electrical signal is sent. , comprising a light emitting element connected to the electrical switching circuit and converting an electrical signal into an optical signal, a light emitting element drive circuit driving the light emitting element, and a control circuit controlling the electrical switching circuit. and a light switch.
JP63161016A 1988-06-30 1988-06-30 Light switch Pending JPH0213011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63161016A JPH0213011A (en) 1988-06-30 1988-06-30 Light switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63161016A JPH0213011A (en) 1988-06-30 1988-06-30 Light switch

Publications (1)

Publication Number Publication Date
JPH0213011A true JPH0213011A (en) 1990-01-17

Family

ID=15726982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63161016A Pending JPH0213011A (en) 1988-06-30 1988-06-30 Light switch

Country Status (1)

Country Link
JP (1) JPH0213011A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001151319A (en) * 1999-11-30 2001-06-05 Nippon Filcon Co Ltd Belt for processing nonwoven cloth product for stain- proof sanitary use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001151319A (en) * 1999-11-30 2001-06-05 Nippon Filcon Co Ltd Belt for processing nonwoven cloth product for stain- proof sanitary use

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