IT1276379B1 - Sistema di trasmissione su una linea a fibra ottica senza ripetitore, con amplificazioni remota e locale. - Google Patents
Sistema di trasmissione su una linea a fibra ottica senza ripetitore, con amplificazioni remota e locale.Info
- Publication number
- IT1276379B1 IT1276379B1 IT95TO000491A ITTO950491A IT1276379B1 IT 1276379 B1 IT1276379 B1 IT 1276379B1 IT 95TO000491 A IT95TO000491 A IT 95TO000491A IT TO950491 A ITTO950491 A IT TO950491A IT 1276379 B1 IT1276379 B1 IT 1276379B1
- Authority
- IT
- Italy
- Prior art keywords
- repeater
- remote
- transmission system
- fiber optic
- optic line
- Prior art date
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
- H04B10/2937—Systems with a repeater placed only at the beginning or the end of the system, i.e. repeaterless systems, e.g. systems with only post and pre-amplification
-
- 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
-
- 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
- H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
-
- 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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
- H04B10/671—Optical arrangements in the receiver for controlling the input optical signal
- H04B10/675—Optical arrangements in the receiver for controlling the input optical signal for controlling the optical bandwidth of the input signal, e.g. spectral filtering
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Communication System (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9407263A FR2721158B1 (fr) | 1994-06-14 | 1994-06-14 | Système de transmission sur une ligne à fibre optique sans répéteur, avec amplifications distante et locale. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO950491A0 ITTO950491A0 (it) | 1995-06-13 |
ITTO950491A1 ITTO950491A1 (it) | 1996-12-13 |
IT1276379B1 true IT1276379B1 (it) | 1997-10-31 |
Family
ID=9464193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT95TO000491A IT1276379B1 (it) | 1994-06-14 | 1995-06-13 | Sistema di trasmissione su una linea a fibra ottica senza ripetitore, con amplificazioni remota e locale. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5561553A (it) |
JP (1) | JPH0856195A (it) |
DE (1) | DE19521400B4 (it) |
FR (1) | FR2721158B1 (it) |
IT (1) | IT1276379B1 (it) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5737460A (en) * | 1995-12-29 | 1998-04-07 | Lucent Technologies Inc. | Applications of solitons in transmission systems employing high launch powers |
KR970064034A (ko) * | 1996-02-10 | 1997-09-12 | 김광호 | 다중파장 자동 파워 및 이득 조절용 광전송 시스템 및 레이저 |
US5764405A (en) * | 1996-10-10 | 1998-06-09 | Tyco Submarine Systems Ltd. | Lossless optical transmission system architecture with non-failing optical amplifiers |
JP3860278B2 (ja) * | 1997-03-13 | 2006-12-20 | 富士通株式会社 | 遠隔励起方式の波長多重光伝送システム |
CA2258935A1 (en) * | 1997-04-30 | 1998-11-05 | Sony Corporation | Device and method for transmitting digital data |
US6043928A (en) * | 1997-06-27 | 2000-03-28 | Lucent Technologies Inc. | Robust multi-wavelength optical fiber communication systems |
US5978130A (en) * | 1997-09-16 | 1999-11-02 | Mci Communications Corporation | Dual-band fiber optic amplification system using a single pump source |
US6151336A (en) * | 1998-02-11 | 2000-11-21 | Sorrento Networks, Inc. | Time division multiplexing expansion subsystem |
US6400478B1 (en) | 1998-04-02 | 2002-06-04 | Sorrento Networks, Inc. | Wavelength-division-multiplexed optical transmission system with expanded bidirectional transmission capacity over a single fiber |
US6298103B1 (en) | 1998-06-16 | 2001-10-02 | Sorrento Networks Corporation | Flexible clock and data recovery module for a DWDM optical communication system with multiple clock rates |
FR2786638A1 (fr) * | 1998-11-26 | 2000-06-02 | Cit Alcatel | Suppression de l'effet raman par modulation de la polarisation |
DE19961515C2 (de) * | 1999-12-20 | 2002-04-25 | Siemens Ag | Anordnung zur Übertragung von Pumplicht hoher Leistung zur Fernspeisung eines Faserverstärkers |
KR20060016808A (ko) * | 2003-06-11 | 2006-02-22 | 코닝 인코포레이티드 | 억제된 sbs를 갖는 광통신 시스템 |
WO2005018117A1 (en) * | 2003-07-31 | 2005-02-24 | Corning Incorporated | Unrepeatered optical communication system with suppressed sbs |
US7574140B2 (en) | 2004-12-22 | 2009-08-11 | Tyco Telecommunications (Us) Inc. | Optical transmission system including repeatered and unrepeatered segments |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2019253C (en) * | 1989-06-23 | 1994-01-11 | Shinya Inagaki | Optical fiber amplifier |
JPH04506593A (ja) * | 1989-07-13 | 1992-11-12 | ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー | 光通信ネットワーク |
JP3137632B2 (ja) * | 1989-08-31 | 2001-02-26 | 富士通株式会社 | 光ファイバ増幅器を備えた光通信方式 |
US5058974A (en) * | 1989-10-06 | 1991-10-22 | At&T Bell Laboratories | Distributed amplification for lightwave transmission system |
DE4036327A1 (de) * | 1990-11-15 | 1992-05-21 | Standard Elektrik Lorenz Ag | Optisches nachrichtenuebertragungssystem mit einem faseroptischen verstaerker |
GB2253514A (en) * | 1991-03-06 | 1992-09-09 | Marconi Gec Ltd | Optical amplifiers |
JP2776124B2 (ja) * | 1992-03-23 | 1998-07-16 | 日本電気株式会社 | 直接検波光受信装置 |
US5392153A (en) * | 1993-08-31 | 1995-02-21 | At&T Corp. | Optical amplifier |
-
1994
- 1994-06-14 FR FR9407263A patent/FR2721158B1/fr not_active Expired - Lifetime
-
1995
- 1995-06-13 US US08/489,768 patent/US5561553A/en not_active Expired - Lifetime
- 1995-06-13 DE DE19521400A patent/DE19521400B4/de not_active Expired - Lifetime
- 1995-06-13 IT IT95TO000491A patent/IT1276379B1/it active IP Right Grant
- 1995-06-14 JP JP7147509A patent/JPH0856195A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2721158B1 (fr) | 1996-07-12 |
ITTO950491A0 (it) | 1995-06-13 |
JPH0856195A (ja) | 1996-02-27 |
DE19521400B4 (de) | 2007-04-12 |
ITTO950491A1 (it) | 1996-12-13 |
FR2721158A1 (fr) | 1995-12-15 |
US5561553A (en) | 1996-10-01 |
DE19521400A1 (de) | 1996-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |