JPS6320324B2 - - Google Patents
Info
- Publication number
- JPS6320324B2 JPS6320324B2 JP54066874A JP6687479A JPS6320324B2 JP S6320324 B2 JPS6320324 B2 JP S6320324B2 JP 54066874 A JP54066874 A JP 54066874A JP 6687479 A JP6687479 A JP 6687479A JP S6320324 B2 JPS6320324 B2 JP S6320324B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- photodetector
- subscriber
- signal
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 31
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000013307 optical fiber Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明は光通信に用いられる光交換機に関し、
特に加入者の起呼を検出する光検出器を設けた光
交換機に関する。[Detailed Description of the Invention] The present invention relates to an optical switch used for optical communication,
In particular, the present invention relates to an optical exchange equipped with a photodetector for detecting a subscriber's call.
光フアイバを伝送路に用いた光通信は現在開発
段階にあるが、光フアイバが誘導雑音を全く受け
ないで高信頼度の伝送ができること、光フアイバ
の広帯域性を利用してその単位断面積当り多量の
情報が伝送できることなどの利点を有することか
ら将来多用されるものと予想されている。この光
通信をシステム化する場合は現在の電気通信と同
様に交換機が必要となる。このため現在、光交換
機は種々考案されつつあるが、加入者からの起呼
を検出する装置が未開発である。従つてこの開発
が要請されており、本発明はこの要請に基づいて
案出されたものである。 Optical communications using optical fibers as transmission paths are currently in the development stage, but optical fibers are capable of highly reliable transmission without any induced noise, and take advantage of the broadband properties of optical fibers to improve the performance per unit cross-sectional area. It is expected that it will be widely used in the future because it has the advantage of being able to transmit a large amount of information. If this optical communication is to be systematized, a switch will be required, similar to current telecommunications. For this reason, various types of optical switching equipment are currently being devised, but a device for detecting calls from subscribers has not yet been developed. Therefore, this development is required, and the present invention was devised based on this request.
このため本発明においては、フルミラーを持つ
複数個の光スイツチをマトリクス状に配列してな
る通話路接続用光スイツチにおいて、加入者から
の起呼を検出するための光検出器が各加入者に対
応して設けられ、待機状態では各加入者からの信
号が対応する光検出器に直接入力されるようにな
つており、該光検出器からの信号により対応する
ミラーが駆動されることを特徴とするものであ
る。 Therefore, in the present invention, in an optical switch for connecting a communication line, which is formed by arranging a plurality of optical switches having full mirrors in a matrix, a photodetector for detecting a call from a subscriber is provided for each subscriber. It is characterized in that in the standby state, signals from each subscriber are directly input to the corresponding photodetector, and the corresponding mirror is driven by the signal from the photodetector. That is.
以下添付図面に基づいて本発明の実施例につき
詳細に説明する。 Embodiments of the present invention will be described in detail below based on the accompanying drawings.
第１図に実施例の構成図を示す。図において１
は加入者、２は通話路接続用光スイツチ、３は光
フアイバケーブル、４は制御回路であつて、加入
者１と通話路接続用光スイツチ２とは光フアイバ
ケーブル３により結ばれている。また通話路接続
用光スイツチ２はフルミラー５を有する光スイツ
チの複数個を、行X0〜Xnと列Y0〜Ynを交差さ
せた交点に配置し、その行X0〜Xnを加入者１よ
りの光フアイバケーブル３に接続し、列Y0〜Yn
を光フアイバケーブル６により他局の交換機に接
続するようにしたもので、各行X0〜Xnの末端に
本発明の要点である光検出器７を設けている。こ
の光検出器７の出力は制御回路４に接続され、制
御回路４は通話路接続用光スイツチ２に接続して
いる。 FIG. 1 shows a configuration diagram of an embodiment. In the figure 1
2 is a subscriber, 2 is an optical switch for connecting a communication line, 3 is an optical fiber cable, and 4 is a control circuit, and the subscriber 1 and the optical switch 2 for communication line connection are connected by an optical fiber cable 3. In addition, the communication path connection optical switch 2 has a plurality of optical switches each having a full mirror 5 arranged at the intersection of the rows X 0 to Xn and the columns Y 0 to Yn, and connects the rows X 0 to Xn to the subscriber 1. Connect to the fiber optic cable 3 of the rows Y 0 ~ Yn
is connected to an exchange at another station by an optical fiber cable 6, and a photodetector 7, which is the main point of the present invention, is provided at the end of each row X0 to Xn. The output of this photodetector 7 is connected to a control circuit 4, and the control circuit 4 is connected to an optical switch 2 for connecting a communication path.
このように構成された本発明の通話路接続用光
スイツチの動作について次に説明する。 The operation of the communication path connecting optical switch of the present invention constructed in this manner will be described next.
通話路接続用光スイツチ２は加入者１からの起
呼がない場合はＸ行とＹ列の接続を行なわないた
たミラー５を制御回路４により下方にさげてお
り、光検出器７は加入者１からの起呼が起るのを
待期している。この状態で加入者１が受話器を取
り上げると起呼の光信号が送出され、光フアイバ
ケーブル３を通つて通話路接続用光スイツチ２に
送られる。この光信号は全べての光スイツチのフ
ル・ミラーが下方にあるため直接光検出器７に入
力される。この光信号が入力した光検出器７は光
信号を電気信号に変換して制御回路４に入力す
る。制御回路４はこの情報に基づいて必要なミラ
ー５を上げてＸ行とＹ列の接続を行なうのであ
る。 The communication path connection optical switch 2 does not connect the X row and the Y column when there is no call from the subscriber 1, and the mirror 5 is lowered downward by the control circuit 4. Waiting for person 1 to call. When the subscriber 1 picks up the handset in this state, an optical signal for calling is sent out, and is sent to the communication line connection optical switch 2 through the optical fiber cable 3. This optical signal is input directly to the photodetector 7 since the full mirrors of all the optical switches are located below. The photodetector 7 to which this optical signal is input converts the optical signal into an electrical signal and inputs it to the control circuit 4. Based on this information, the control circuit 4 raises the necessary mirrors 5 to connect the X row and Y column.
以上の如く本発明の通話路接続用光スイツチは
その中に光検出器が組込まれているため小形であ
り、かつ加入者の起呼を簡単に検出することがで
きる。また主信号路（通話路）での光信号の損失
が少なく、光信号の入力端および出力端にレンズ
８および９を用いて光ビームを整形すればさらに
低損失化が可能である。また光信号がアナログ信
号の場合には広帯域が利用でき、デジタル信号の
場合には伝送速度を大とすることが可能である。 As described above, the optical switch for connecting a communication path of the present invention has a photodetector built into it, so it is small in size and can easily detect a subscriber's call. Further, the loss of the optical signal in the main signal path (communication path) is small, and it is possible to further reduce the loss by shaping the optical beam using lenses 8 and 9 at the input and output ends of the optical signal. Further, when the optical signal is an analog signal, a wide band can be used, and when the optical signal is a digital signal, it is possible to increase the transmission speed.
第１図は本発明にかかる実施例の光検出器を持
つフル・ミラー形通話路接続用光スイツチの構成
図である。
１……加入者、２……通話路接続用光スイツ
チ、３，６……光フアイバケーブル、４……制御
回路、５……フルミラー、７……光検出器。
FIG. 1 is a block diagram of a full-mirror type communication line connection optical switch having a photodetector according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Subscriber, 2...Optical switch for communication line connection, 3, 6...Optical fiber cable, 4...Control circuit, 5...Full mirror, 7...Photodetector.
Claims (1)
リクス状に配列してなる通話路接続用光スイツチ
において、 加入者からの起呼を検出するための光検出器が
各加入者に対応して設けられ、待機状態では各加
入者からの信号が対応する光検出器に直接入力さ
れるようになつており、該光検出器からの信号に
より対応するミラーが駆動されることを特徴とし
た光検出器を持つフルミラー形通話路接続用スイ
ツチ。[Claims] 1. In an optical switch for connecting a communication path, which is formed by arranging a plurality of optical switches each having a full mirror in a matrix, each subscriber is provided with a photodetector for detecting a call from the subscriber. It is characterized in that in the standby state, signals from each subscriber are directly input to the corresponding photodetector, and the corresponding mirror is driven by the signal from the photodetector. A full-mirror type communication path connection switch with a photodetector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6687479A JPS55159402A (en) | 1979-05-31 | 1979-05-31 | Full mirror type channel-connecting photo switch having photo detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6687479A JPS55159402A (en) | 1979-05-31 | 1979-05-31 | Full mirror type channel-connecting photo switch having photo detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55159402A JPS55159402A (en) | 1980-12-11 |
| JPS6320324B2 true JPS6320324B2 (en) | 1988-04-27 |
Family
ID=13328441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6687479A Granted JPS55159402A (en) | 1979-05-31 | 1979-05-31 | Full mirror type channel-connecting photo switch having photo detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55159402A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4955686A (en) * | 1989-06-16 | 1990-09-11 | Gte Laboratories Incorporated | Optical fiber crossconnect switch |
| WO1999066354A2 (en) * | 1998-06-05 | 1999-12-23 | Astarte Fiber Networks, Inc. | Planar array optical switch and method |
| AU2001292895A1 (en) * | 2000-09-22 | 2002-04-02 | Movaz Networks, Inc. | Variable transmission multi-channel optical switch |
| JP2003270553A (en) | 2002-03-15 | 2003-09-25 | Fujitsu Ltd | Optical switch |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934214A (en) * | 1972-07-28 | 1974-03-29 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS532237U (en) * | 1976-06-25 | 1978-01-11 |
-
1979
- 1979-05-31 JP JP6687479A patent/JPS55159402A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934214A (en) * | 1972-07-28 | 1974-03-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55159402A (en) | 1980-12-11 |
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