JPS59111432A - Submarine optical communication system - Google Patents
Submarine optical communication systemInfo
- Publication number
- JPS59111432A JPS59111432A JP57221208A JP22120882A JPS59111432A JP S59111432 A JPS59111432 A JP S59111432A JP 57221208 A JP57221208 A JP 57221208A JP 22120882 A JP22120882 A JP 22120882A JP S59111432 A JPS59111432 A JP S59111432A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber cable
- optical
- submarine
- section
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は海底光通信方式に関する。[Detailed description of the invention] The present invention relates to a submarine optical communication system.
従来の海底光通信方式では、海底光中継装置と光フアイ
バケーブルの布設時に布設ルート変更等が生じ布設距離
が結果として長くなり、予定されていた海底中継装置数
、光フアイバケーブル数では不足を来たしたとき、新た
に少なくとも１中継区間（１海底光中継装置と光ファイ
バケーブル１中継区間長）を追加挿入し信号レベル調整
を行っていた。With conventional submarine optical communication systems, when installing submarine optical repeaters and optical fiber cables, the installation route has to be changed, resulting in longer installation distances, and the planned number of submarine repeaters and optical fiber cables is insufficient. At that time, at least one new repeater section (one submarine optical repeater and one repeater section length of optical fiber cable) was added and signal levels were adjusted.
この方式では、変更に伴う布設距離長にかかわらず最低
１中継区・間の海底光中継装置と光フアイバケーブルが
要求され、さらに布設工事期間もそれに応じて延長され
、工事期間の長期化及び工事費の増加を招く欠点があっ
た。This method requires at least one submarine optical repeater and optical fiber cable between relay sections regardless of the length of the installation distance due to the change, and the installation period is also extended accordingly, resulting in longer construction periods and This had the disadvantage of increasing costs.
本発明は、この欠点を除去し、布設距離に変動が生じた
場合に中継区間を増設することなしに、最小限の光フア
イバケーブルと短期間の布設工事により対処することの
できる海底光通信方式を提供することを目的としている
。The present invention eliminates this drawback, and provides a submarine optical communication system that can cope with changes in the installation distance by using a minimum number of optical fiber cables and short-term installation work, without adding relay sections. is intended to provide.
本発明の海底光通信方式は、光送信端局と、光受信端局
と、この両端局間に従属に接続された光フアイバケーブ
ルと、光フアイバケーブルを接続するためのジヨイント
ボックスと、海底光中継装置とを含む光海底通信方式に
おいて、任意の海底光中継区間が光フアイバケーブルの
標準長より短い光フアイバケーブル短距離区間で接続さ
れる場合に、外部制御形光減衰器を接続し、光フアイバ
ケーブルの標準長と実際に挿入される光フアイバケーブ
ルの差によって発生する損失をケーブル布設船上で制御
盤により前記外部制御形影光減衰器に磁界を印加するこ
とで、光の減衰量を可変し該当中継区間の標準損失と一
致させるようにしたことを特徴とするものである。The submarine optical communication system of the present invention includes an optical transmitting terminal station, an optical receiving terminal station, an optical fiber cable subordinately connected between these two terminal stations, a joint box for connecting the optical fiber cable, and a submarine optical fiber cable. In an optical submarine communication system including an optical repeater, when any submarine optical repeater section is connected by a short-distance optical fiber cable section shorter than the standard length of the optical fiber cable, an externally controlled optical attenuator is connected, The loss caused by the difference between the standard length of the optical fiber cable and the optical fiber cable actually inserted can be reduced by applying a magnetic field to the externally controlled shadow attenuator using a control panel on the cable installation ship to vary the amount of light attenuation. This is characterized in that the loss matches the standard loss of the corresponding relay section.
本発明では光フアイバケーブルの設計標準長と実際に使
用される光フアイバケーブル長の差によって発生する損
失を光減衰器で補償する。In the present invention, an optical attenuator compensates for the loss caused by the difference between the design standard length of the optical fiber cable and the actually used optical fiber cable length.
本発明の実施例は第１図に示すように、光送信端局１と
、光受信端局２と、この両端局間に従属に接続された光
フアイバケーブル４と、光フアイバケーブルを接続する
ためのジヨイントボックス８と、海底光中継装置３とを
含む光海底通信方式において、任意の海底光中継区間９
が光フアイバケーブルの標準長より短い光フアイバケー
ブルすなわち光ファイバ冴−プル短距離区間７で接続さ
れる場合拠外部制御形光減衰器５を接続し、光フアイバ
ケーブルの標準長と実際に挿入される光フアイバケーブ
ルの差によって発生する損失をケーブル布設船１０上で
制御盤６により外部制御形影光減衰器５に磁界を印加す
ることで、光の減衰量を可変し、該当中継区間の標準損
失と一致させるようにしたことを特徴とするものである
。As shown in FIG. 1, an embodiment of the present invention connects an optical transmitting terminal station 1, an optical receiving terminal station 2, an optical fiber cable 4 connected subordinately between these two terminal stations, and an optical fiber cable. In an optical submarine communication system including a joint box 8 for
If the fiber optic cable is shorter than the standard length of the optical fiber cable, i.e., the optical fiber cable is connected with the short distance section 7, the externally controlled optical attenuator 5 is connected, and the standard length of the optical fiber cable and the actual inserted length are connected. By applying a magnetic field to the externally controlled shadow light attenuator 5 from the control panel 6 on the cable installation ship 10, the amount of light attenuation is varied and the standard loss of the relevant relay section is reduced. It is characterized by being made to match.
以上説明したように、本発明によれば光フアイバケーブ
ル長を海底光中継装置と光フアイバケーブルの特性によ
って決定される最大中継区間長以下で自由に設定するこ
とができる。As explained above, according to the present invention, the length of the optical fiber cable can be freely set to be less than or equal to the maximum relay section length determined by the characteristics of the submarine optical repeater and the optical fiber cable.
第１図は本発明の海底光通信方式の実施例を示す構成図
である。
１・・・・・・光送信端局、２・・・・・・光受信端局
、３・・・・・・海底光中継装置、４・・・・・・光フ
アイバケーブル標準区間、５・・・・・・外部制御形光
減衰器、６・・・・・・制御盤、７・・・・・・光フア
イバケーブル短距離区間、８・・・・・・ジヨイントボ
ックス、９・・・・・・海底光中継区間、１０・・・・
・・ケーブル布設船。FIG. 1 is a block diagram showing an embodiment of the submarine optical communication system of the present invention. 1... Optical transmitting terminal station, 2... Optical receiving terminal station, 3... Submarine optical repeater, 4... Optical fiber cable standard section, 5 ...Externally controlled optical attenuator, 6...Control panel, 7...Optical fiber cable short distance section, 8...Joint box, 9. ...Undersea optical relay section, 10...
...Cable laying ship.
Claims (1)
続された光フアイバケーブルと、光フアイバケーブルを
接続するためのシミインドボックスと、海底光中継装置
とを含む光海底通信方式において、任意の海底光中継区
間が光フアイバケーブルの標準長より短い光フアイバケ
ーブル短距離区間で接続される場合に外部制御形光減衰
器を接続し、光フアイバケーブルの標準長と実際に挿入
される光フアイバケーブルの差によって発生する損失を
ケーブル布設船上で制御盤により前記外部制御形影光減
衰器に磁界を印加することで、光の減衰量を可変し該当
中継区間の標準損失と一致させるようにしたことを特徴
とする海底光通信方式。Optical submarine communication including an optical transmitting terminal station, an optical receiving terminal station, an optical fiber cable connected submissively between the two terminal stations, a stain box for connecting the optical fiber cable, and a submarine optical repeater. In this method, when any submarine optical repeater section is connected with a short distance section of optical fiber cable shorter than the standard length of optical fiber cable, an externally controlled optical attenuator is connected and the actual length of the optical fiber cable is connected to the standard length of optical fiber cable. By applying a magnetic field to the externally controlled shadow light attenuator using a control panel on board the cable laying ship, the amount of light attenuation is varied and made equal to the standard loss of the relevant relay section. A submarine optical communication system that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57221208A JPS59111432A (en) | 1982-12-17 | 1982-12-17 | Submarine optical communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57221208A JPS59111432A (en) | 1982-12-17 | 1982-12-17 | Submarine optical communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59111432A true JPS59111432A (en) | 1984-06-27 |
Family
ID=16763153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57221208A Pending JPS59111432A (en) | 1982-12-17 | 1982-12-17 | Submarine optical communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59111432A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63263079A (en) * | 1987-04-20 | 1988-10-31 | Nisshin Oil Mills Ltd:The | Propagation promoter for marine bacteria |
| WO2003098846A1 (en) * | 2002-05-16 | 2003-11-27 | Schleifring Und Apparatebau Gmbh | Device for optically transmitting signals between two units moving relative to one another |
| CN110798262A (en) * | 2019-10-23 | 2020-02-14 | 中国海洋大学 | Underwater wireless optical communication network |
-
1982
- 1982-12-17 JP JP57221208A patent/JPS59111432A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63263079A (en) * | 1987-04-20 | 1988-10-31 | Nisshin Oil Mills Ltd:The | Propagation promoter for marine bacteria |
| JP2584227B2 (en) * | 1987-04-20 | 1997-02-26 | 日清製油株式会社 | Marine bacterial growth promoter |
| WO2003098846A1 (en) * | 2002-05-16 | 2003-11-27 | Schleifring Und Apparatebau Gmbh | Device for optically transmitting signals between two units moving relative to one another |
| US7099532B2 (en) | 2002-05-16 | 2006-08-29 | Schleifring Und Apparatebau Gmbh | Device for optical signal transmission between two units movable relative to each other |
| CN110798262A (en) * | 2019-10-23 | 2020-02-14 | 中国海洋大学 | Underwater wireless optical communication network |
| CN110798262B (en) * | 2019-10-23 | 2023-02-24 | 中国海洋大学 | Underwater wireless optical communication network |
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