IN191995B - - Google Patents
Info
- Publication number
- IN191995B IN191995B IN1298CA1997A IN191995B IN 191995 B IN191995 B IN 191995B IN 1298CA1997 A IN1298CA1997 A IN 1298CA1997A IN 191995 B IN191995 B IN 191995B
- Authority
- IN
- India
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
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- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0204—Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0205—Select and combine arrangements, e.g. with an optical combiner at the output after adding or dropping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
- H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0213—Groups of channels or wave bands arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0215—Architecture aspects
- H04J14/0217—Multi-degree architectures, e.g. having a connection degree greater than two
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0221—Power control, e.g. to keep the total optical power constant
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0016—Construction using wavelength multiplexing or demultiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0018—Construction using tunable transmitters or receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0024—Construction using space switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0037—Operation
- H04Q2011/0045—Synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0037—Operation
- H04Q2011/0049—Crosstalk reduction; Noise; Power budget
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960032235A KR100210913B1 (ko) | 1996-08-01 | 1996-08-01 | 전송광의 파장을 자동 추적하여 필터링하는 광섬유증폭기 및 그 운용방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
IN191995B true IN191995B (de) | 2004-02-07 |
Family
ID=19468595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN1298CA1997 IN191995B (de) | 1996-08-01 | 1997-07-09 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6028697A (de) |
JP (1) | JP3178661B2 (de) |
KR (1) | KR100210913B1 (de) |
CN (1) | CN1090414C (de) |
DE (1) | DE19733365A1 (de) |
FR (1) | FR2752067B1 (de) |
GB (1) | GB2315939B (de) |
IN (1) | IN191995B (de) |
RU (1) | RU2146069C1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11284263A (ja) * | 1998-01-30 | 1999-10-15 | Hitachi Cable Ltd | 超広帯域波長分散補償デバイス,およびそれを用いた光通信システム |
JP3468097B2 (ja) * | 1998-03-17 | 2003-11-17 | 日立電線株式会社 | 超広帯域波長分散補償・増幅デバイス |
US6275328B1 (en) * | 1999-07-27 | 2001-08-14 | Nortel Networks Limited | Amplifier control |
US20020159051A1 (en) * | 2001-04-30 | 2002-10-31 | Mingxian Guo | Method for optical wavelength position searching and tracking |
US20030113058A1 (en) * | 2001-12-14 | 2003-06-19 | Stayt John William | Control system for dynamic gain equalization filter |
CN1788445A (zh) * | 2003-06-04 | 2006-06-14 | 马科尼英国知识产权有限公司 | 通信系统 |
JP2004361818A (ja) * | 2003-06-06 | 2004-12-24 | Fujitsu Ltd | 信号光送出部 |
TW200827798A (en) * | 2006-12-20 | 2008-07-01 | Inventec Multimedia & Telecom | Switching device of light-beam channel of optical fiber network |
CN101211087B (zh) * | 2006-12-31 | 2011-08-10 | 华为技术有限公司 | 一种光纤放大器及制作方法及光纤通信系统 |
WO2009004720A1 (ja) * | 2007-07-03 | 2009-01-08 | Fujitsu Limited | レベル低下検出装置、光増幅装置、およびレベル低下検出方法 |
KR101811383B1 (ko) * | 2015-12-23 | 2017-12-22 | 금오공과대학교 산학협력단 | 어댑터 |
KR200492116Y1 (ko) | 2019-05-02 | 2020-08-10 | 송성빈 | 이중칫솔 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4671604A (en) * | 1985-02-06 | 1987-06-09 | The United States Of America As Represented By The Secretary Of The Air Force | Wavelength dependent, tunable, optical time delay system for electrical signals |
JPH0681119B2 (ja) * | 1986-04-17 | 1994-10-12 | 日本電気株式会社 | 波長多重光伝送方式 |
US5260823A (en) * | 1990-05-21 | 1993-11-09 | University Of Southampton | Erbium-doped fibre amplifier with shaped spectral gain |
JPH04264532A (ja) * | 1991-02-20 | 1992-09-21 | Fujitsu Ltd | 光増幅器 |
GB2260046B (en) * | 1991-09-26 | 1995-02-15 | Northern Telecom Ltd | Optical communications systems |
JPH05224158A (ja) * | 1992-02-14 | 1993-09-03 | Matsushita Electric Ind Co Ltd | 光フィルター及びその光フィルターを用いた光増幅装置 |
JPH05257186A (ja) * | 1992-03-16 | 1993-10-08 | Fujitsu Ltd | 光増幅器 |
JP3256713B2 (ja) * | 1992-06-27 | 2002-02-12 | キヤノン株式会社 | 波長可変フィルタ制御方式、制御装置及びそれを用いた光通信システム |
JP3396270B2 (ja) * | 1993-08-10 | 2003-04-14 | 富士通株式会社 | 光分散補償方式 |
JP2715883B2 (ja) * | 1993-12-28 | 1998-02-18 | 日本電気株式会社 | 光増幅装置 |
CA2139957C (en) * | 1994-02-18 | 1999-02-09 | Andrew R. Chraplyvy | Multi-channel optical fiber communication system |
JPH07240551A (ja) * | 1994-03-02 | 1995-09-12 | Fujitsu Ltd | 光増幅伝送装置におけるサージ光発生防止方式 |
JPH088835A (ja) * | 1994-06-21 | 1996-01-12 | Fujitsu Ltd | 光伝送方式 |
JP2723067B2 (ja) * | 1995-03-14 | 1998-03-09 | 日本電気株式会社 | 光増幅装置 |
JPH08331048A (ja) * | 1995-06-05 | 1996-12-13 | Fujitsu Ltd | 光信号受信装置 |
US5600467A (en) * | 1995-06-14 | 1997-02-04 | Mci Communications Corp. | Method and apparatus for reducing harmonic interference on multiplexed optical communication lines |
US5633743A (en) * | 1995-11-07 | 1997-05-27 | Lucent Technologies Inc. | Optical communications system using tunable tandem Fabry-Perot etalon |
KR100194421B1 (ko) * | 1996-01-29 | 1999-06-15 | 윤종용 | 광섬유증폭기 |
JP3512050B2 (ja) * | 1996-06-11 | 2004-03-29 | 住友電気工業株式会社 | 光フィルタおよび光伝送システム |
-
1996
- 1996-08-01 KR KR1019960032235A patent/KR100210913B1/ko not_active IP Right Cessation
-
1997
- 1997-07-09 IN IN1298CA1997 patent/IN191995B/en unknown
- 1997-07-24 JP JP19902497A patent/JP3178661B2/ja not_active Expired - Fee Related
- 1997-07-29 CN CN97116141A patent/CN1090414C/zh not_active Expired - Fee Related
- 1997-07-30 FR FR9709717A patent/FR2752067B1/fr not_active Expired - Fee Related
- 1997-07-31 RU RU97113525A patent/RU2146069C1/ru not_active IP Right Cessation
- 1997-08-01 US US08/904,113 patent/US6028697A/en not_active Expired - Fee Related
- 1997-08-01 GB GB9716218A patent/GB2315939B/en not_active Expired - Fee Related
- 1997-08-01 DE DE19733365A patent/DE19733365A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP3178661B2 (ja) | 2001-06-25 |
GB2315939A (en) | 1998-02-11 |
RU2146069C1 (ru) | 2000-02-27 |
KR100210913B1 (ko) | 1999-07-15 |
FR2752067B1 (fr) | 2001-12-07 |
DE19733365A1 (de) | 1998-02-12 |
GB9716218D0 (en) | 1997-10-08 |
KR19980013662A (ko) | 1998-05-15 |
JPH1075002A (ja) | 1998-03-17 |
CN1090414C (zh) | 2002-09-04 |
US6028697A (en) | 2000-02-22 |
CN1181647A (zh) | 1998-05-13 |
FR2752067A1 (fr) | 1998-02-06 |
GB2315939B (en) | 1998-10-14 |