HK1029675A1 - Optical communication system - Google Patents
Optical communication systemInfo
- Publication number
- HK1029675A1 HK1029675A1 HK00107856A HK00107856A HK1029675A1 HK 1029675 A1 HK1029675 A1 HK 1029675A1 HK 00107856 A HK00107856 A HK 00107856A HK 00107856 A HK00107856 A HK 00107856A HK 1029675 A1 HK1029675 A1 HK 1029675A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- communication system
- optical communication
- optical
- communication
- 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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0771—Fault location on the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/07—Monitoring an optical transmission system using a supervisory signal
- H04B2210/078—Monitoring an optical transmission system using a supervisory signal using a separate wavelength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/08—Shut-down or eye-safety
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9906394A GB2348063B (en) | 1999-03-19 | 1999-03-19 | Optical communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1029675A1 true HK1029675A1 (en) | 2001-04-06 |
Family
ID=10849990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK00107856A HK1029675A1 (en) | 1999-03-19 | 2000-12-07 | Optical communication system |
Country Status (9)
Country | Link |
---|---|
US (1) | US6483616B1 (de) |
EP (2) | EP1041747A3 (de) |
JP (1) | JP4447105B2 (de) |
CN (2) | CN1267981A (de) |
AU (1) | AU2227200A (de) |
GB (1) | GB2348063B (de) |
HK (1) | HK1029675A1 (de) |
NO (1) | NO20001260L (de) |
RU (1) | RU2000106750A (de) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6681079B1 (en) * | 2000-05-18 | 2004-01-20 | Nortel Networks Limited | Optical fibre monitoring system |
SE519731C2 (sv) * | 2000-09-29 | 2003-04-01 | Transmode Systems Ab | En sändare-mottagareanordning, samt ett kommunikationssystem med övervakning av optisk kommunikation |
SE517754C2 (sv) * | 2000-11-15 | 2002-07-09 | Ericsson Telefon Ab L M | Anordning och förfarande för styrning av kommunikationslänkar |
US6845189B2 (en) | 2000-11-15 | 2005-01-18 | Telefonaktiebolaget Lm Ericsson (Publ) | System and a method for limiting the maximum of light transmitted from a ribbon fiber |
GB2369509A (en) * | 2000-11-28 | 2002-05-29 | Marconi Comm Ltd | Optical shutter for a communication system |
JP3768110B2 (ja) * | 2001-02-22 | 2006-04-19 | 富士通株式会社 | 光増幅器 |
US20020181037A1 (en) * | 2001-06-01 | 2002-12-05 | Richard Lauder | Failure protection switching in optical network |
US20030002109A1 (en) * | 2001-06-29 | 2003-01-02 | Jim Hochberg | Eye safety shutdown |
JP4632585B2 (ja) * | 2001-07-16 | 2011-02-16 | 富士通株式会社 | 光伝送システム |
US7092630B2 (en) * | 2001-11-16 | 2006-08-15 | Avago Technologies Fiber Ip(Singapore) Ptd. Ltd. | Open fiber control for optical transceivers |
US20030113118A1 (en) * | 2001-11-28 | 2003-06-19 | Meir Bartur | Smart single fiber optic transceiver |
US7957643B2 (en) * | 2002-03-07 | 2011-06-07 | Alcatel-Lucent Usa Inc. | Method and apparatus for automatically controlling optical signal power in optical transmission systems |
AU2003226263A1 (en) * | 2002-04-12 | 2003-10-27 | Thomson Licensing S.A. | Digital control circuit for serial uart transmissions |
JP3934529B2 (ja) * | 2002-10-30 | 2007-06-20 | 富士通株式会社 | 波長多重光通信システム |
JP3898137B2 (ja) | 2003-03-06 | 2007-03-28 | 富士通株式会社 | 自動出力復帰方法および光通信システム |
CN1305243C (zh) * | 2003-05-09 | 2007-03-14 | 中兴通讯股份有限公司 | 密集波分复用系统自动光功率减小进程时间的测试方法和装置 |
JP4584563B2 (ja) * | 2003-10-07 | 2010-11-24 | パイオニア株式会社 | 光伝送システム |
JP4337603B2 (ja) * | 2004-03-31 | 2009-09-30 | 日本電気株式会社 | 光伝送システム |
IL165958A (en) * | 2004-12-23 | 2010-12-30 | Eci Telecom Ltd | Method of controlling optical amplifier located along an optical link |
US7218442B2 (en) * | 2005-03-04 | 2007-05-15 | Jds Uniphase Corporation | Optical communications system with fiber break detection in the presence of Raman amplification |
GB2425904A (en) * | 2005-05-03 | 2006-11-08 | Marconi Comm Gmbh | Optical network fault test apparatus which modifies a received test signal using a passive optical device to generate a response signal |
CN1874193B (zh) * | 2005-06-03 | 2012-05-23 | 华为技术有限公司 | 实现激光安全保护的方法及光放大器、标识信号加载方法 |
JP4699924B2 (ja) * | 2006-03-16 | 2011-06-15 | 富士通株式会社 | 光特性を測定する方法およびシステム |
US7630296B2 (en) * | 2006-04-14 | 2009-12-08 | Adc Telecommunications, Inc. | System and method for remotely restoring inoperative data communications |
JP4751934B2 (ja) * | 2006-12-28 | 2011-08-17 | 富士通株式会社 | 光伝送装置および光伝送方法 |
US8861952B2 (en) * | 2007-02-28 | 2014-10-14 | Finisar Corporation | Redundancy and interoperability in multi-channel optoelectronic devices |
US8032021B2 (en) * | 2007-02-28 | 2011-10-04 | Finisar Corporation | Status link for multi-channel optical communication systems |
US8526810B2 (en) * | 2007-04-30 | 2013-09-03 | Finisar Corporation | Eye safety and interoperability of active cable devices |
CN101325650B (zh) * | 2007-06-11 | 2010-04-14 | 青岛海信电器股份有限公司 | 可兼容多种接入方式的音视频接收设备 |
US8509624B2 (en) * | 2007-11-28 | 2013-08-13 | Cisco Technology, Inc. | Transceiver module sleep mode |
US9287991B2 (en) * | 2012-10-17 | 2016-03-15 | Christie Digital Systems Usa, Inc. | Light module interlock system |
EP2819322B1 (de) * | 2013-06-28 | 2018-04-04 | Deutsche Telekom AG | Automatisierte Fehlerreaktion bei einem optischen Übertragungssystem |
JP6638210B2 (ja) | 2015-04-17 | 2020-01-29 | ソニー株式会社 | 通信装置、通信方法、および通信システム |
CN104993871B (zh) * | 2015-05-28 | 2017-11-28 | 武汉光迅科技股份有限公司 | 一种新型塔内光中继放大器装置 |
JP7180298B2 (ja) * | 2018-11-13 | 2022-11-30 | 日本電信電話株式会社 | 光伝送システム及び非使用経路確認方法 |
US11652545B2 (en) * | 2020-11-24 | 2023-05-16 | Ciena Corporation | Avoiding fiber damage on non-supervisory optical fiber links |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8616873D0 (en) * | 1986-07-10 | 1986-08-20 | British Telecomm | Optical telecommunications system |
JPH02209030A (ja) * | 1989-02-09 | 1990-08-20 | Fujitsu Ltd | 光伝送回線装置 |
US4994675A (en) * | 1989-04-28 | 1991-02-19 | Rebo Research, Inc. | Method and apparatus for checking continuity of optic transmission |
US5136410A (en) * | 1990-01-09 | 1992-08-04 | Ibm Corporation | Optical fiber link control safety system |
US5019769A (en) * | 1990-09-14 | 1991-05-28 | Finisar Corporation | Semiconductor laser diode controller and laser diode biasing control method |
US5428471A (en) * | 1992-07-30 | 1995-06-27 | Alcatel Network Systems, Inc. | Fail-safe automatic shut-down apparatus and method for high output power optical communications system |
US5335104A (en) * | 1992-10-22 | 1994-08-02 | Laser Precision Corp. | Method of detecting breaks in multi-drop feeder systems |
GB2292495B (en) * | 1994-08-17 | 1998-03-25 | Northern Telecom Ltd | Fault location in optical communication systems |
JP2682517B2 (ja) * | 1995-07-26 | 1997-11-26 | 日本電気株式会社 | 光出力遮断システム |
US5790293A (en) * | 1995-10-27 | 1998-08-04 | Lucent Technologies Inc. | Systems for monitoring optical path characteristics in an optical communication system |
US6452701B1 (en) * | 1997-03-19 | 2002-09-17 | Fujitsu Limited | Wavelength division multiplexing communications network supervisory system |
US6359708B1 (en) * | 1997-09-18 | 2002-03-19 | Lucent Technologies Inc. | Optical transmission line automatic power reduction system |
-
1999
- 1999-03-19 GB GB9906394A patent/GB2348063B/en not_active Expired - Lifetime
- 1999-09-08 US US09/391,750 patent/US6483616B1/en not_active Expired - Lifetime
-
2000
- 2000-02-07 EP EP00300932A patent/EP1041747A3/de not_active Ceased
- 2000-02-07 EP EP10181841.7A patent/EP2271005B1/de not_active Expired - Lifetime
- 2000-03-10 NO NO20001260A patent/NO20001260L/no unknown
- 2000-03-14 AU AU22272/00A patent/AU2227200A/en not_active Abandoned
- 2000-03-17 CN CN00104322A patent/CN1267981A/zh active Pending
- 2000-03-17 RU RU2000106750/09A patent/RU2000106750A/ru not_active Application Discontinuation
- 2000-03-17 CN CN200910002832.6A patent/CN101521542B/zh not_active Expired - Lifetime
- 2000-03-21 JP JP2000078316A patent/JP4447105B2/ja not_active Expired - Lifetime
- 2000-12-07 HK HK00107856A patent/HK1029675A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1041747A3 (de) | 2003-08-13 |
CN101521542A (zh) | 2009-09-02 |
GB2348063B (en) | 2001-03-07 |
EP2271005A1 (de) | 2011-01-05 |
JP4447105B2 (ja) | 2010-04-07 |
NO20001260L (no) | 2000-09-13 |
NO20001260D0 (no) | 2000-03-10 |
RU2000106750A (ru) | 2002-01-20 |
CN1267981A (zh) | 2000-09-27 |
EP1041747A2 (de) | 2000-10-04 |
US6483616B1 (en) | 2002-11-19 |
CN101521542B (zh) | 2016-01-06 |
EP2271005B1 (de) | 2018-04-11 |
JP2000286798A (ja) | 2000-10-13 |
GB9906394D0 (en) | 1999-05-12 |
GB2348063A (en) | 2000-09-20 |
AU2227200A (en) | 2000-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PE | Patent expired |
Effective date: 20190318 |