JPS63261929A - Optical repeater - Google Patents
Optical repeaterInfo
- Publication number
- JPS63261929A JPS63261929A JP62095385A JP9538587A JPS63261929A JP S63261929 A JPS63261929 A JP S63261929A JP 62095385 A JP62095385 A JP 62095385A JP 9538587 A JP9538587 A JP 9538587A JP S63261929 A JPS63261929 A JP S63261929A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- repeater
- transmission
- point
- television
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 230000002457 bidirectional effect Effects 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 abstract description 11
- 239000000835 fiber Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は光中継装置を用いた伝送システムに関し、特に
片方向のテレビ伝送を含む伝送システムにおいて、光ス
イッチを用いることにより中継装置内の中継器の伝送方
向を変え、伝送容量の存効利用を計る光中継装置に関す
る。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a transmission system using an optical repeater, and in particular, in a transmission system including one-way television transmission, the relay within the repeater is improved by using an optical switch. This invention relates to an optical repeater that changes the transmission direction of a device and makes effective use of its transmission capacity.
従来の光中！！装置、例えば光海底中継装置は、多チャ
ンネルのテレビと電話を伝送する場合、第２図に示すよ
うに、Ａ点からＢ点への伝送用中継器１５と、Ｂ点から
Ａ点への伝送用中継器１６とを１システムとして、これ
を多システム含み、中継器１５はＡ点からＢ点へのテレ
ビと電話を、中継器１６はＢ点からＡ点への電話を伝送
する構成か、あるいは第３図に示すように、Ａ点からＢ
点へのテレビ伝送専用の中継器１７と、Ａ点からＢ点へ
電話を伝送する中継器１８と、Ｂ点からＡ点へ電話を伝
送する中継器１９とから構成されるものであった。なお
、第２図および第３図において、２０は光ファイバを示
している。Conventional Hikari! ! When transmitting multi-channel television and telephone equipment, for example, an optical submarine repeater, as shown in FIG. With the repeater 16 as one system, it includes multiple systems, with the repeater 15 transmitting television and telephone calls from point A to point B, and the repeater 16 transmitting telephone calls from point B to point A, or Or, as shown in Figure 3, from point A to B
It consisted of a repeater 17 dedicated to transmitting television to a point, a repeater 18 for transmitting telephone calls from point A to point B, and a repeater 19 for transmitting telephone calls from point B to point A. In addition, in FIGS. 2 and 3, 20 indicates an optical fiber.
上述した従来の光海底中継装置において、ある決まった
時間帯しかテレビを放送しない地域では、その放送しな
い時間帯に電話等の回線需要が回線容量を超えたとき、
第２図の中継装置では中継器を全て電話回線に振り向け
ることが可能であるが、通常のテレビを伝送している場
合、中継器１５の片方向伝送テレビにより占める伝送容
量が中継器１６では使用できない、あき容量となってお
り、この分を補うためにシステム数が増えるという欠点
がある。In the above-mentioned conventional optical submarine repeater, in areas where television is broadcast only during certain fixed hours, when the demand for telephone lines, etc. exceeds the line capacity during the non-broadcasting hours,
In the repeater shown in FIG. 2, it is possible to allocate all the repeaters to telephone lines, but when transmitting ordinary television, the transmission capacity occupied by the one-way transmission TV of repeater 15 is limited to that of repeater 16. The disadvantage is that the capacity is unusable, and the number of systems increases to compensate for this.
一方、第３図の光海底中継装置では、第２図の光海底中
継装置よりシステム数は減るが、上述のようにテレビを
伝送しないときに、テレビ伝送専用の回線を電話に振り
向けることができないという欠点がある。On the other hand, the optical submarine repeater shown in Figure 3 has fewer systems than the optical submarine repeater shown in Figure 2, but as mentioned above, it is possible to allocate a line dedicated to TV transmission to telephones when not transmitting television. The drawback is that it cannot be done.
本発明の目的は、上述のような欠点のない光中継装置を
提供することにある。An object of the present invention is to provide an optical repeater that does not have the above-mentioned drawbacks.
本発明は、片方向伝送のテレビ多チャンネルと、双方向
伝送の電話等を伝送するシステムに用いられる光中継装
置において、
中継装置内の中継器の伝送方向を切り替える光スイッチ
と、
光スイッチを制御する制御回路とを備え、テレビ伝送を
行わないときに、前記光スイッチにより中継器の伝送方
向を切り替えて、中継器を電話回線等に振り向けること
を特徴としている。The present invention provides an optical repeater used in a system for transmitting one-way multi-channel television and two-way telephone, etc., comprising: an optical switch that switches the transmission direction of a repeater in the repeater; and a control of the optical switch. The transmitter is characterized in that when television transmission is not performed, the optical switch switches the transmission direction of the repeater and directs the repeater to a telephone line or the like.
以下に本発明の実施例を図面を用いて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例である光海底中継装置を示す
。この中継装置は、Ａ点からＢ点への第１の伝送路中に
、伝送方向を切り替える自己保持型光スイッチ２と、光
結合器３と、中継器４と、光分配器５と、伝送方向を切
り替える光スイッチ６とを備えている。FIG. 1 shows an optical submarine repeater that is an embodiment of the present invention. This relay device includes a self-holding optical switch 2 for switching the transmission direction, an optical coupler 3, a repeater 4, an optical splitter 5, and a transmission path in a first transmission path from point A to point B. It is equipped with an optical switch 6 for switching the direction.
光スイッチ２の接点ａは光結合器３に接続され、接点す
は光分配器５に接続されている。一方、光スイッチ６の
接点Ｃは光分配器５に接続され、接点ｄは光結合器３に
接続されている。A contact a of the optical switch 2 is connected to an optical coupler 3, and a contact a is connected to an optical distributor 5. On the other hand, a contact C of the optical switch 6 is connected to the optical distributor 5, and a contact d is connected to the optical coupler 3.
また、Ａ点からＢ点への第２の伝送路中に、伝送方向を
切り替える自己保持型光スイッチ７と、光結合器８と、
中継器９と１．光分配器１０と、伝送方向を切り替える
光スイッチ１１とを備えている。In addition, in the second transmission path from point A to point B, a self-holding optical switch 7 for switching the transmission direction, and an optical coupler 8,
Repeaters 9 and 1. It includes an optical distributor 10 and an optical switch 11 that switches the transmission direction.
光スイッチ７の接点ｅは光結合器８に接続され、接点ｆ
は光分配器１０に接続されている。一方、光スイッチ１
１の接点ｇは光分配器１０に接続され、接点りは光結合
器８に接続されている。A contact e of the optical switch 7 is connected to an optical coupler 8, and a contact f
is connected to the optical distributor 10. On the other hand, optical switch 1
One contact g is connected to the optical distributor 10, and the other contact g is connected to the optical coupler 8.
本実施例の光海底中継装置は、さらに、第１の伝送路の
光スイッチ２，６の切り替えを制御する制御回路１２と
、第２の伝送路の光スイッチ７．１１の切り替えを制御
する制御回路１３とを備えている。The optical submarine repeater of this embodiment further includes a control circuit 12 that controls switching of the optical switches 2 and 6 on the first transmission line, and a control circuit that controls switching of the optical switches 7 and 11 on the second transmission line. A circuit 13 is provided.
制御回路１２は第２の伝送路の中継器９に接続され、制
御回路１３は第１の伝送路の中継器４に接続されている
。なお図中、１および１４は光ファイバである。The control circuit 12 is connected to the repeater 9 of the second transmission line, and the control circuit 13 is connected to the repeater 4 of the first transmission line. In the figure, 1 and 14 are optical fibers.
以上のような構成の光海底中継装置において、Ａ点から
Ｂ点に向かってテレビを片方向伝送しているときは、第
１の伝送路の光スイッチ２，６、第２の伝送路の光スイ
ッチ７．１１は実線矢印で示す位置に切り替えられてお
り、Ａ点から光ファイバ１，１４を通して入力された信
号は、光スイッチ２．７、光結合器３，８を通り、中継
器４，９で再生され、光分配器５．１０、光スイッチ６
．１１を通して、光ファイバ１，１４にＢ点の方向に伝
送される。In the optical submarine repeater with the above configuration, when transmitting television in one direction from point A to point B, the optical switches 2 and 6 on the first transmission line, the optical switches on the second transmission line The switch 7.11 is switched to the position indicated by the solid arrow, and the signal input from point A through the optical fibers 1 and 14 passes through the optical switch 2.7, the optical couplers 3 and 8, and is transmitted to the repeater 4, 9, optical splitter 5.10, optical switch 6
．． 11, and is transmitted to the optical fibers 1 and 14 in the direction of point B.
この状態から、テレビを伝送せず電話等の双方向通信の
必要が生じたとき、端局から第１の伝送路の光ファイバ
１、光スイッチ２、光結合器３、中継器４を通して、制
御回路１３に命令信号を送り、この信号を受けた制御回
路１３により、光スイッチ７．１１を点線矢印で示す位
置に切り替える。この結果第２の伝送路光ファイバ１４
は、Ｂ点からの入力信号を光スイッチ１１、光結合器８
を通して、中継器９により再生し、光分配器１０、光ス
イッチ１１を通して、Ａ点へと信号を伝送できる。In this state, when the need arises for two-way communication such as telephone without transmitting television, control is transmitted from the terminal station through the first transmission line's optical fiber 1, optical switch 2, optical coupler 3, and repeater 4. A command signal is sent to the circuit 13, and upon receiving this signal, the control circuit 13 switches the optical switch 7.11 to the position indicated by the dotted arrow. As a result, the second transmission line optical fiber 14
The input signal from point B is sent to the optical switch 11 and the optical coupler 8.
The signal can be regenerated by the repeater 9 and transmitted to point A through the optical distributor 10 and optical switch 11.
また、第１の伝送路側を切り替えるときは、端局から第
２の伝送路の光ファイバ１４、光スイッチ７、光結合器
８、中継器９を通して、制御回路１２に命令信号を送り
、この制御回路１２により光スイッチ２．６を切り替え
る。When switching the first transmission line side, a command signal is sent from the terminal station to the control circuit 12 through the optical fiber 14 of the second transmission line, the optical switch 7, the optical coupler 8, and the repeater 9. The circuit 12 switches the optical switch 2.6.
以上のように切り替えることにより、電話等の双方向通
信が可能となる。By switching as described above, two-way communication such as telephone communication becomes possible.
以上説明したように本発明は片方向伝送のテレビ多チャ
ンネルと、双方向伝送の電話等を伝送するシステムにお
いて、光中継装置内の中継器の伝送方向を切り替えるこ
とによって、システム数を増やさず、テレビ伝送が行わ
れないときの双方向伝送の電話等の回線容量を増やし、
回線の有効利用を計れる効果がある。As explained above, the present invention can be used in a system that transmits multi-channel TV with one-way transmission and telephone with two-way transmission, by switching the transmission direction of the repeater in the optical repeater, without increasing the number of systems. Increase the line capacity of telephones, etc. for two-way transmission when television transmission is not available,
This has the effect of measuring the effective use of lines.
第１図は本発明の一実施例である光海底中継装置を示す
図、
第２図および第３図は従来の光海底中継装置を示す図で
ある。
１・・・・・第１の伝送路の光ファイバ２．６，７．１
１・・・自己保持型光スイッチ３．８・・・光結合器
４．９・・・中継器
５．１０・・・光分配器
１２、１３・・・制御回路
１４・・・・・第２の伝送路の光ファイバ代理人 弁理
士 岩 佐 義 幸
１．１４・・−・・・・−光ファイハ
２．６，７．Ｉ＋−・・光スイノ千
３．８・・・・・・・・・−光結合器
４．９ ・・−・・−・・−中＋＃器
５．１ｏ・−・−・・−・−・光分配器１２．１３−・
・・・・・−−−・・制徂回路第１図FIG. 1 is a diagram showing an optical submarine repeater according to an embodiment of the present invention, and FIGS. 2 and 3 are diagrams showing conventional optical submarine repeaters. 1...Optical fibers 2.6, 7.1 of the first transmission line
1...Self-holding optical switch 3.8...Optical coupler 4.9...Repeater 5.10...Optical distributor 12, 13...Control circuit 14...No. Optical fiber agent for the transmission line in No. 2 Yoshiyuki Iwasa, patent attorney 1.14...- Optical fiber 2.6, 7. I+-...Hikari Suino Sen 3.8...-Optical coupler 4.9...-Medium+# unit 5.1o-------- -・Light splitter 12.13-・
・・・・・・－－－・・Strength control circuit diagram 1
Claims (1)
の電話等を伝送するシステムに用いられる光中継装置に
おいて、 中継装置内の中継器の伝送方向を切り替える光スイッチ
と、 光スイッチを制御する制御回路とを備え、 テレビ伝送を行わないときに、前記光スイッチにより中
継器の伝送方向を切り替えて、中継器を電話回線等に振
り向けることを特徴とする光中継装置。(1) In optical repeating equipment used in systems that transmit unidirectional multi-channel television and bidirectional telephone transmission, etc., an optical switch that switches the transmission direction of the repeater in the repeater equipment and controls the optical switch. An optical repeater comprising: a control circuit, wherein the optical switch switches the transmission direction of the repeater to direct the repeater to a telephone line or the like when television transmission is not performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62095385A JPS63261929A (en) | 1987-04-20 | 1987-04-20 | Optical repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62095385A JPS63261929A (en) | 1987-04-20 | 1987-04-20 | Optical repeater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63261929A true JPS63261929A (en) | 1988-10-28 |
Family
ID=14136180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62095385A Pending JPS63261929A (en) | 1987-04-20 | 1987-04-20 | Optical repeater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63261929A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000077758A (en) * | 1998-09-01 | 2000-03-14 | Kdd Corp | Light amplifier and light transmission system |
-
1987
- 1987-04-20 JP JP62095385A patent/JPS63261929A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000077758A (en) * | 1998-09-01 | 2000-03-14 | Kdd Corp | Light amplifier and light transmission system |
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