JPS6290043A - Optical submarine repeater - Google Patents
Optical submarine repeaterInfo
- Publication number
- JPS6290043A JPS6290043A JP60228826A JP22882685A JPS6290043A JP S6290043 A JPS6290043 A JP S6290043A JP 60228826 A JP60228826 A JP 60228826A JP 22882685 A JP22882685 A JP 22882685A JP S6290043 A JPS6290043 A JP S6290043A
- Authority
- JP
- Japan
- Prior art keywords
- repeater
- submarine
- optical
- optical submarine
- cable
- 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
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は海底中継器、特に光海底中継器に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a submarine repeater, particularly an optical submarine repeater.
一般的な海底ケーブル中継方式では海底同軸ケーブルを
用いた単一システムの中継方式であり、又、光海底中継
方式にしても１個の光海底中継器の耐圧筺体内に収容し
得る内部中継システム数の２倍の心線を有する１条の光
海底ファイバケーブルと光海底中継器とを接続した中継
方式である。The general submarine cable relay system is a single system relay system using a submarine coaxial cable, and even in the optical submarine relay system, an internal relay system that can be accommodated within the pressure-resistant enclosure of one optical submarine repeater. This is a relay system in which a single optical submarine fiber cable with twice the number of fibers is connected to an optical submarine repeater.
しかし、光海底中継伝送方式はディジタル伝送方式が主
流であり、その光海底中継器は、光信号を電気信号に変
換した後、再び光信号に変換する再生中継方法を取らざ
るを得ず、通信を行う場合、少なくとも１個の光海底中
継器には各々２組の送信部、受信部を必要とする事から
、同軸ケーブルを用いたアナログ方式の海底中継器に比
較して、その回路構成は格段に複雑となり、必然的に中
継器本体が大型化となる。−・方、この光海底中継器を
収容する耐圧筐体自体の大きさは、敷設船の関係上大型
化を図る事は困難であり、耐圧筺体内に収容し得るシス
テム数（送信部、受信部各々２組で構成したも、のを１
システムとする）は、３システム程度が現状である。However, the mainstream optical submarine relay transmission system is a digital transmission system, and the optical submarine repeater has no choice but to use a regenerative relay method that converts the optical signal into an electrical signal and then converts it back into an optical signal. When performing this, at least one optical submarine repeater requires two sets of transmitting sections and two receiving sections each, so its circuit configuration is smaller than that of an analog submarine repeater using coaxial cables. This becomes much more complicated, and the repeater itself inevitably becomes larger. - On the other hand, it is difficult to increase the size of the pressure casing itself that accommodates this optical submarine repeater due to the size of the installation ship, and the number of systems that can be accommodated in the pressure casing (transmitting section, receiving section, etc.) is difficult to increase. Each part consisted of two sets, but one
Currently, there are about three systems.
第３図は、■システムの従来の光海底中継器を利用した
海底ケーブル中継システムを示す。第３図に於いて、Ａ
、Ｂは海底ケーブル陸揚局であり、光’ｔＦ４底ファイ
バケーブル１０の途中にＡ −ＢおよびＢ−Ａへ伝送可
能な再生中継器１１．１２を有する光海底中継器１３が
設けられている。光海底ファイバケーブル１０の光フア
イバ心線数は、光海底中継器内に収容したシステム数×
２倍、この場合には２本である。システム数が２の場合
には心線数は４本、システム数が３の場合には心線数は
６本となる。Figure 3 shows a submarine cable relay system using a conventional optical submarine repeater of system (1). In Figure 3, A
, B is a submarine cable landing station, and an optical submarine repeater 13 having regenerative repeaters 11 and 12 capable of transmitting to A-B and B-A is installed in the middle of the optical 'tF4 bottom fiber cable 10. . The number of optical fiber cores in the optical submarine fiber cable 10 is calculated by multiplying the number of systems accommodated in the optical submarine repeater.
Twice, in this case two. When the number of systems is 2, the number of core wires is 4, and when the number of systems is 3, the number of core wires is 6.
従来の光海底中継器を用いたこのような中継方式では、
前述したように光海底中継器内に収容できるシステム数
に制限があることから、伝送容量を大きくするためには
海底ケーブル中継システムの条数を増やさなければなら
ず、中継システムが高価になるという欠点がある。In this type of relay system using conventional optical submarine repeaters,
As mentioned above, there is a limit to the number of systems that can be accommodated within an optical submarine repeater, so in order to increase transmission capacity, the number of submarine cable repeating systems must be increased, making the repeater system expensive. There are drawbacks.
一方、光フアイバケーブルは細くて、軽く、ファイバケ
ーブル相互間の干渉を受けないという長所があるが、従
来の光海底中継器を用いた中継方式に於いては、１条の
光海底ファイバケーブルに収容可能なファイバ心線数は
、耐圧筺体内に収容された光海底中継器のシステム構成
により制限を受け、光ファイバの長所を損なうという欠
点もあった。On the other hand, optical fiber cables have the advantage of being thin, light, and free from interference between fiber cables, but in the relay system using conventional optical submarine repeaters, it is difficult to use a single optical submarine fiber cable. The number of fibers that can be accommodated is limited by the system configuration of the optical submarine repeater housed in the pressure-resistant enclosure, which also has the disadvantage of compromising the advantages of optical fibers.
本発明の目的は、上述のような欠点を改善することので
きる光海底中継器を提供することにある。An object of the present invention is to provide an optical submarine repeater that can improve the above-mentioned drawbacks.
本発明の光海底中継器は、耐圧筺体内に、複数の再生中
継器と、複数のスルーラインとを有している。The optical submarine repeater of the present invention includes a plurality of regenerative repeaters and a plurality of through lines in a pressure resistant housing.
第１図は本発明による光海底中継器の一実施例を示す図
である。この光海底中継器１は耐圧筺体２内に一方向へ
伝送可能な再生中継器３と、他方向へ伝送可能な再生中
継器４と、再生中継器を通らない２本のスルーライン５
，６とを有している。FIG. 1 is a diagram showing an embodiment of an optical submarine repeater according to the present invention. This optical submarine repeater 1 includes a regenerative repeater 3 that can transmit data in one direction, a regenerative repeater 4 that can transmit data in the other direction, and two through lines 5 that do not pass through the regenerative repeater, in a pressure-resistant housing 2.
, 6.
この光海底中継器を利用した海底ケーブル中継システム
の一例を第２図に示す。第２図において、Ａ、Ｂは海底
ケーブル陸揚局であり、これら陸揚局間に光フアイバ心
線数が４本の光海底ファイバケーブル７が敷設されてい
る。このケーブル中には光海底中継器１ａ、ｌｂが設け
られており、中４１Ｗ１ａの再生中継器を３ａ、４ａ、
スルーラインを５ａ、６ａで示し、中継器１ｂの再生中
継器を３ｂ、４ｂ、スルーラインを５ｂ、６ｂで示す。An example of a submarine cable relay system using this optical submarine repeater is shown in Fig. 2. In FIG. 2, A and B are submarine cable landing stations, and an optical submarine fiber cable 7 having four optical fiber cores is laid between these landing stations. Optical submarine repeaters 1a, lb are installed in this cable, and regenerative repeaters 3a, 4a, 41W1a are installed in this cable.
The through lines are indicated by 5a and 6a, the regenerative repeaters of the repeater 1b are indicated by 3b and 4b, and the through lines are indicated by 5b and 6b.
これら再生中継器およびスルーラインの海底ケーブル７
の光ファイバによる接続は、一方の光海底中継器の再生
中継器が他方の光海底中継器のスルーラインに接続され
るよう溝底する。These regenerative repeaters and through-line submarine cables 7
The optical fiber connections are made so that the regenerative repeater of one optical submarine repeater is connected to the through line of the other optical submarine repeater.
この海底ケーブル中継システムを、第３図に示した従来
の光海底中継器を用いた海底ケーブル中継システムと比
較すると、従来の伝送容量の２倍の伝送容量を有する中
継システムを１条のｌホ底ケーブルで提供できることが
わかる。一般に、１（固の光海底中継器が複数の再生中
継器と複数のスルーラインを有する場合、再生中継器の
数の整数倍の光フアイバ心線数を持つ１条の海底ケーブ
ルを、光海底中継器に縦続接続することができる。この
ことは、光海底ファイバケーブルが許容する範囲まで、
ケーブルを多心化でき、かつ中継システムを大容量化で
きることを意味している。Comparing this submarine cable relay system with the conventional submarine cable relay system using optical submarine repeaters shown in Figure 3, we can see that the relay system has twice the transmission capacity of the conventional one. You can see that it can be provided with a bottom cable. Generally, if a fixed optical submarine repeater has multiple regenerative repeaters and multiple through lines, one submarine cable with an integral multiple of the number of regenerative repeaters is connected to the optical submarine cable. can be cascaded to repeaters, to the extent permitted by submarine fiber optic cables.
This means that the cable can be multi-core and the relay system can have a large capacity.
また中継システム全体として考えた場合、光海底中２）
？器の台数は従来の光海底中継器を使用した時の２倍（
第２図のシステムに於いて）〜数倍となるが、同じ伝送
容量を得る為に２条〜数条の海底ケーブル中継システム
を敷設する事を考えればはるかに経済的である。Also, when considering the relay system as a whole, optical submarine medium 2)
? The number of devices is twice that of using conventional optical submarine repeaters (
(In the system shown in Fig. 2), it will be several times as large, but it will be much more economical if you consider laying two to several submarine cable relay systems to obtain the same transmission capacity.
以北説明した様に、光海底中継器内にスルーラインを設
け、この光海底中継器に縦続接続される光海底ファイバ
ケーブルを１条の多心化構造とする事により、
（１）従来技術の光海底中継器で大容量のシステムが実
現可能となる、
（２）光海底ファイバケーブルを多条敷設する事がなく
経済的である、
等の効果がある。As explained above, by providing a through line in the optical submarine repeater and making the optical submarine fiber cable cascade-connected to the optical submarine repeater a single multi-core structure, (1) Conventional technology (2) It is economical because there is no need to lay multiple optical submarine fiber cables, and so on.
第１図は本発明による光海底中継器の一実施例を示す図
、
第２図は第１図の光海底中継器を利用したシステムを示
す図、
第３図は従来の光海底中継器を利用したシステムを示す
図である。
１・・・・・光海底中継器
２・・・・・耐圧筐体
３．４・・・再生中継器
５．６・・・スルーライン
７・・・・・光海底ファイバケーブル
Ａ、Ｂ・・・陸揚局Fig. 1 is a diagram showing an embodiment of an optical submarine repeater according to the present invention, Fig. 2 is a diagram showing a system using the optical submarine repeater of Fig. 1, and Fig. 3 is a diagram showing a conventional optical submarine repeater. It is a diagram showing the system used. 1... Optical submarine repeater 2... Pressure resistant housing 3.4... Regenerative repeater 5.6... Through line 7... Optical submarine fiber cable A, B.・Landing station
Claims (1)
ーラインとを有する光海底中継器。(1) An optical submarine repeater having a plurality of regenerative repeaters and a plurality of through lines in a pressure-resistant housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60228826A JPS6290043A (en) | 1985-10-16 | 1985-10-16 | Optical submarine repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60228826A JPS6290043A (en) | 1985-10-16 | 1985-10-16 | Optical submarine repeater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6290043A true JPS6290043A (en) | 1987-04-24 |
Family
ID=16882461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60228826A Pending JPS6290043A (en) | 1985-10-16 | 1985-10-16 | Optical submarine repeater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6290043A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0853396A2 (en) * | 1996-10-21 | 1998-07-15 | Fujitsu Limited | Optical transmission system including optical repeaters with selectively enabled gain equalizers contained therein and including an add/drop apparatus with a plurality of individually selectable filters |
| JPH1168706A (en) * | 1997-05-12 | 1999-03-09 | Alcatel Alsthom Co General Electricite | Wavelength division multiplex branching device and operating method for optical transmission system |
| US6236776B1 (en) | 1997-04-25 | 2001-05-22 | Nec Corporation | Submarine optical gain equalizer, submarine optical transmission line and its installation method |
-
1985
- 1985-10-16 JP JP60228826A patent/JPS6290043A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0853396A2 (en) * | 1996-10-21 | 1998-07-15 | Fujitsu Limited | Optical transmission system including optical repeaters with selectively enabled gain equalizers contained therein and including an add/drop apparatus with a plurality of individually selectable filters |
| EP0853396A3 (en) * | 1996-10-21 | 2001-12-05 | Fujitsu Limited | Optical transmission system including optical repeaters with selectively enabled gain equalizers contained therein and including an add/drop apparatus with a plurality of individually selectable filters |
| EP1487138A1 (en) * | 1996-10-21 | 2004-12-15 | Fujitsu Limited | Apparatus comprising optical circuits linked to an optical fibre cable |
| US6236776B1 (en) | 1997-04-25 | 2001-05-22 | Nec Corporation | Submarine optical gain equalizer, submarine optical transmission line and its installation method |
| US6366718B2 (en) | 1997-04-25 | 2002-04-02 | Nec Corporation | Submarine optical gain equalizer, submarine optical transmission line and its installation method |
| JPH1168706A (en) * | 1997-05-12 | 1999-03-09 | Alcatel Alsthom Co General Electricite | Wavelength division multiplex branching device and operating method for optical transmission system |
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