FR2394936A1 - Repeteur de transmission optique en modulation par impulsions codees - Google Patents
Repeteur de transmission optique en modulation par impulsions codeesInfo
- Publication number
- FR2394936A1 FR2394936A1 FR7625831A FR7625831A FR2394936A1 FR 2394936 A1 FR2394936 A1 FR 2394936A1 FR 7625831 A FR7625831 A FR 7625831A FR 7625831 A FR7625831 A FR 7625831A FR 2394936 A1 FR2394936 A1 FR 2394936A1
- Authority
- FR
- France
- Prior art keywords
- circuit
- optical transmission
- pulse modulation
- coded pulse
- transmission repeater
- 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.)
- Granted
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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/2933—Signal power control considering the whole optical path
- H04B10/2935—Signal power control considering the whole optical path with a cascade of amplifiers
-
- 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
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/524—Pulse modulation
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Time-Division Multiplex Systems (AREA)
- Dc Digital Transmission (AREA)
Abstract
L'invention concerne un répéteur de transmission optique en modulation par impulsions codées. Il comporte un convertisseur opto-électrique, un amplificateur, un correcteur et un convertisseur électro-optique pour chaque fibre optique d'un groupe, et l'un au moins parmi les circuits suivants : un circuit de commande automatique de gain, un circuit de commande d'élément lumineux, un circuit d'alimentation, un circuit de synchronisation et un circuit de supervision. Applications à la transmission de données numériques à grande vitesse sur câble optique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50102524A JPS5227208A (en) | 1975-08-26 | 1975-08-26 | Optical pcm group transmission relay system |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2394936A1 true FR2394936A1 (fr) | 1979-01-12 |
FR2394936B1 FR2394936B1 (fr) | 1983-05-13 |
Family
ID=14329712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7625831A Granted FR2394936A1 (fr) | 1975-08-26 | 1976-08-26 | Repeteur de transmission optique en modulation par impulsions codees |
Country Status (5)
Country | Link |
---|---|
US (1) | US4074127A (fr) |
JP (1) | JPS5227208A (fr) |
DE (1) | DE2638079C2 (fr) |
FR (1) | FR2394936A1 (fr) |
GB (1) | GB1548974A (fr) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1534786A (en) * | 1976-06-29 | 1978-12-06 | Standard Telephones Cables Ltd | Data transmission system |
JPS53113401A (en) * | 1977-03-16 | 1978-10-03 | Hitachi Ltd | Light communication system |
DE2716788A1 (de) * | 1977-04-15 | 1978-10-19 | Spinner Georg | Optisches informationssystem |
US4183054A (en) * | 1977-09-30 | 1980-01-08 | Harris Corporation | Digital, frequency-translated, plural-channel, vestigial sideband television communication system |
JPS593051B2 (ja) * | 1978-01-09 | 1984-01-21 | ケイディディ株式会社 | 光中継伝送路の障害監視方式 |
US4317614A (en) * | 1980-02-20 | 1982-03-02 | General Dynamics, Pomona Division | Fiber optic bus manifold |
JPS57104339A (en) * | 1980-12-19 | 1982-06-29 | Ricoh Co Ltd | Optical communication network |
US4679252A (en) * | 1984-01-11 | 1987-07-07 | Chevron Research Company | Fiber optic receiver having a method and an apparatus for data clock extraction |
US4688268A (en) * | 1984-01-11 | 1987-08-18 | Chevron Research Company | Fiber optic receiver having a combined baseline clamp and automatic gain control detector |
US4641371A (en) * | 1985-01-16 | 1987-02-03 | Westinghouse Electric Corp. | Multi-star fiber optic network |
US4727600A (en) * | 1985-02-15 | 1988-02-23 | Emik Avakian | Infrared data communication system |
US5023942A (en) * | 1987-06-26 | 1991-06-11 | Martin Marietta | Fault tolerant data transmission network |
DE3818168A1 (de) * | 1988-05-26 | 1990-04-05 | Krone Ag | Empfangsvorverstaerker fuer eine optische nachrichtenuebertragungsstrecke |
DE3905547A1 (de) * | 1989-02-23 | 1990-09-06 | Standard Elektrik Lorenz Ag | Eingangsstufe fuer einen optischen breitbandempfaenger |
JP2986613B2 (ja) * | 1992-05-27 | 1999-12-06 | 株式会社日立製作所 | 光伝送モジュール |
WO1995021060A1 (fr) * | 1994-02-04 | 1995-08-10 | Dai Nippon Printing Co., Ltd. | Plaque de gaufrage pour impression en relief sur un materiau decoratif, pourvue d'elements en creux et en saillie reproduisant le grain et les veines du bois, et procede et appareil de production |
JP2003134055A (ja) * | 2001-10-29 | 2003-05-09 | Yokogawa Electric Corp | 光ディジタル通信用測定装置 |
US7002131B1 (en) | 2003-01-24 | 2006-02-21 | Jds Uniphase Corporation | Methods, systems and apparatus for measuring average received optical power |
US7215883B1 (en) | 2003-01-24 | 2007-05-08 | Jds Uniphase Corporation | Methods for determining the performance, status, and advanced failure of optical communication channels |
JP2008252310A (ja) * | 2007-03-29 | 2008-10-16 | Fujitsu Component Ltd | 中継装置及び中継システム |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2248211A1 (de) * | 1972-10-02 | 1974-04-11 | Allg Elek Citaets Ges Aeg Tele | Faserleitungs-nachrichtenuebertragungssystem |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3727061A (en) * | 1970-07-06 | 1973-04-10 | Us Army | Pulse laser communication system |
DE2144780A1 (de) * | 1971-09-08 | 1973-03-15 | Licentia Gmbh | Nachrichtenuebertragungssystem mit einem kabel mit parallelgefuehrten glasfaserlichtleitungen |
JPS4922015A (fr) * | 1972-06-16 | 1974-02-27 | ||
US3851167A (en) * | 1972-12-11 | 1974-11-26 | Itt | Light-guide communication system with image intensifier repeater elements |
CH559990A5 (fr) * | 1973-06-12 | 1975-03-14 | Patelhold Patentverwertung | |
FR2239063B1 (fr) * | 1973-07-27 | 1977-09-16 | Thomson Csf |
-
1975
- 1975-08-26 JP JP50102524A patent/JPS5227208A/ja active Pending
-
1976
- 1976-08-23 GB GB35001/76A patent/GB1548974A/en not_active Expired
- 1976-08-24 DE DE2638079A patent/DE2638079C2/de not_active Expired
- 1976-08-24 US US05/717,273 patent/US4074127A/en not_active Expired - Lifetime
- 1976-08-26 FR FR7625831A patent/FR2394936A1/fr active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2248211A1 (de) * | 1972-10-02 | 1974-04-11 | Allg Elek Citaets Ges Aeg Tele | Faserleitungs-nachrichtenuebertragungssystem |
Non-Patent Citations (1)
Title |
---|
EXBK/73 * |
Also Published As
Publication number | Publication date |
---|---|
DE2638079A1 (de) | 1977-03-10 |
FR2394936B1 (fr) | 1983-05-13 |
JPS5227208A (en) | 1977-03-01 |
GB1548974A (en) | 1979-07-18 |
US4074127A (en) | 1978-02-14 |
DE2638079C2 (de) | 1983-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |