USRE39378E1 - Optical channel regulator and method - Google Patents
Optical channel regulator and method Download PDFInfo
- Publication number
- USRE39378E1 USRE39378E1 US10/802,118 US80211804A USRE39378E US RE39378 E1 USRE39378 E1 US RE39378E1 US 80211804 A US80211804 A US 80211804A US RE39378 E USRE39378 E US RE39378E
- Authority
- US
- United States
- Prior art keywords
- optical
- signal
- tapped
- output
- coupler
- 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.)
- Expired - Lifetime
Links
Images
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
- H04B10/297—Bidirectional amplification
- H04B10/2971—A single amplifier for both directions
-
- 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
- H04B10/25073—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion using spectral equalisation, e.g. spectral filtering
-
- 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
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/802,118 USRE39378E1 (en) | 1997-09-30 | 2004-03-16 | Optical channel regulator and method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6052697P | 1997-09-30 | 1997-09-30 | |
US09/164,224 US5923450A (en) | 1998-09-30 | 1998-09-30 | Optical channel regulator and method |
US10/802,118 USRE39378E1 (en) | 1997-09-30 | 2004-03-16 | Optical channel regulator and method |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/164,224 Reissue US5923450A (en) | 1997-09-30 | 1998-09-30 | Optical channel regulator and method |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE39378E1 true USRE39378E1 (en) | 2006-11-07 |
Family
ID=22593520
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/164,224 Ceased US5923450A (en) | 1997-09-30 | 1998-09-30 | Optical channel regulator and method |
US09/212,972 Expired - Fee Related US6157475A (en) | 1998-09-30 | 1998-12-16 | Optical channel regulator and method |
US10/802,118 Expired - Lifetime USRE39378E1 (en) | 1997-09-30 | 2004-03-16 | Optical channel regulator and method |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/164,224 Ceased US5923450A (en) | 1997-09-30 | 1998-09-30 | Optical channel regulator and method |
US09/212,972 Expired - Fee Related US6157475A (en) | 1998-09-30 | 1998-12-16 | Optical channel regulator and method |
Country Status (1)
Country | Link |
---|---|
US (3) | US5923450A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070003281A1 (en) * | 2005-06-30 | 2007-01-04 | Infinera Corporation | Active control loop for power control of optical channel groups |
US20070154213A1 (en) * | 2005-12-30 | 2007-07-05 | Adva Ag Optical Networking | Method and device for monitoring an optical transmission line, especially an optical transmission line to an end subscriber of a transmission network |
US20100296808A1 (en) * | 2009-05-22 | 2010-11-25 | Hinderthuer Henning | Method and device for the 1+1 protection of an optical transmission path |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5768002A (en) | 1996-05-06 | 1998-06-16 | Puzey; Kenneth A. | Light modulation system including a superconductive plate assembly for use in a data transmission scheme and method |
US5923450A (en) * | 1998-09-30 | 1999-07-13 | Alcatel Network Systems, Inc. | Optical channel regulator and method |
JPH11122219A (en) * | 1997-10-17 | 1999-04-30 | Fujitsu Ltd | Wavelength multiplex optical signal amplifier |
JP3111964B2 (en) * | 1998-01-28 | 2000-11-27 | 日本電気株式会社 | Optical gain equalizing apparatus and method |
US6275313B1 (en) * | 1998-02-03 | 2001-08-14 | Lucent Technologies Inc. | Raman gain tilt equalization in optical fiber communication systems |
JP3565313B2 (en) * | 1998-05-25 | 2004-09-15 | 富士通株式会社 | Optical transmitter, terminal device having the optical transmitter, and optical communication system |
GB9825046D0 (en) * | 1998-11-17 | 1999-01-13 | Barr & Stroud Ltd | Data communications link |
JP2000180803A (en) * | 1998-12-15 | 2000-06-30 | Sumitomo Electric Ind Ltd | Multichannel optical variable attenuator |
US6275329B1 (en) * | 1999-05-10 | 2001-08-14 | Oni Systems Corp. | Method and apparatus for amplification of an optical signal |
US6259842B1 (en) * | 1999-06-17 | 2001-07-10 | Sdl, Inc. | Monitoring system for a high power light source |
WO2001015291A1 (en) * | 1999-08-23 | 2001-03-01 | Fujitsu Limited | Wavelength multiplexer |
JP2001186107A (en) * | 1999-12-24 | 2001-07-06 | Fujitsu Ltd | Level adjustment method, and wavelength multiplex transmitter and system utilizing the method |
US6760532B1 (en) | 2000-01-28 | 2004-07-06 | Ciena Corporation | Optical device having dynamic channel equalization |
US6634807B1 (en) * | 2000-03-14 | 2003-10-21 | Lucent Technologies Inc. | Optical transmission system including performance optimization |
US6456409B2 (en) | 2000-07-21 | 2002-09-24 | Sycamore Networks, Inc. | Method and apparatus for extending fiber transmission distance with multiple pre-emphases in optically amplified DWDM system |
GB2366925A (en) * | 2000-09-13 | 2002-03-20 | Marconi Comm Ltd | Power control and equalisation in an optical WDM system |
DE10047342A1 (en) * | 2000-09-25 | 2002-05-08 | Siemens Ag | Method to compensate for channel quality differences in a WDM system |
US6961525B2 (en) | 2000-11-17 | 2005-11-01 | Sycamore Networks, Inc. | Method for channel balance |
CA2365373A1 (en) * | 2000-12-28 | 2002-06-28 | Jeffrey K. Emery | Methods for equalization of a dwdm system |
US6633430B1 (en) | 2001-02-15 | 2003-10-14 | Onetta, Inc. | Booster amplifier with spectral control for optical communications systems |
KR100387072B1 (en) * | 2001-02-23 | 2003-06-12 | 삼성전자주식회사 | Bidirectional Optical Amplifier |
US20020163683A1 (en) * | 2001-03-26 | 2002-11-07 | Antoniades Neophytos A. | Performance optimizer for transmission systems |
KR100378111B1 (en) * | 2001-04-02 | 2003-03-29 | 삼성전자주식회사 | Optical amplifier and bidirectional wavelength division multiplexing optical communication system using that |
US7266298B2 (en) * | 2001-05-07 | 2007-09-04 | Aurora Networks, Inc. | N-way broadcast/narrowcast optical combiner demultiplexing a multiplexed narrowcast input signal |
US6660990B2 (en) * | 2001-06-01 | 2003-12-09 | Nortel Networks Limited | Optical amplification and receiving system and method |
US6760512B2 (en) * | 2001-06-08 | 2004-07-06 | Hrl Laboratories, Llc | Electro-optical programmable true-time delay generator |
JP3905083B2 (en) * | 2001-12-03 | 2007-04-18 | 富士通株式会社 | Optical communication system |
US6542671B1 (en) | 2001-12-12 | 2003-04-01 | Super Light Wave Corp. | Integrated 3-dimensional multi-layer thin-film optical couplers and attenuators |
US20040052529A1 (en) * | 2002-02-15 | 2004-03-18 | Richard Lauder | WDM transmission link design |
FR2838190B1 (en) * | 2002-04-08 | 2004-10-15 | Cit Alcatel | DEVICE FOR DYNAMIC MEASUREMENT AND / OR CONTROL OF POWER LOSS IN AN OPTICAL TRANSMISSION LINE WITH SUPERVISORY CHANNEL, AND ASSOCIATED PROCESS |
US20050089332A1 (en) * | 2003-10-03 | 2005-04-28 | Near Margalit | Long reach optical transmission over a single fiber |
US20060133826A1 (en) * | 2004-12-22 | 2006-06-22 | Cisco Technology, Inc. | Adaptive receiver for APD based modules |
US20070003283A1 (en) * | 2005-06-29 | 2007-01-04 | At&T Corp. | Dynamic allocation of bandwidth in a bidirectional optical transmission system |
US20070071450A1 (en) * | 2005-09-29 | 2007-03-29 | Adc Telecommunications, Inc. | Systems and methods for optical power window control |
US7729620B2 (en) * | 2005-09-29 | 2010-06-01 | Adc Telecommunications, Inc. | Methods and systems for controlling optical power attenuation |
JP4571054B2 (en) * | 2005-09-30 | 2010-10-27 | 富士通株式会社 | Optical wavelength control method and system |
US7684698B2 (en) * | 2006-02-08 | 2010-03-23 | Adc Telecommunications, Inc. | Methods and systems for controlling power in a communications network |
US7724994B1 (en) | 2008-02-04 | 2010-05-25 | Hrl Laboratories, Llc | Digitally controlled optical tapped time delay modules and arrays |
US8494369B2 (en) * | 2008-06-06 | 2013-07-23 | Infinera Corporation | Planar lightwave circuit |
US7729572B1 (en) | 2008-07-08 | 2010-06-01 | Hrl Laboratories, Llc | Optical tapped time delay modules and arrays |
EP2645599B1 (en) | 2012-03-29 | 2015-08-19 | Alcatel Lucent | Flexible Optimization of the Signal-to-Noise Ratio for Ultra Dense Coherent WDM Systems |
WO2015087448A1 (en) * | 2013-12-13 | 2015-06-18 | 富士通株式会社 | Multicarrier optical transmission system, multicarrier optical transmission method, optical transmitter, and optical receiver |
WO2017032406A1 (en) * | 2015-08-24 | 2017-03-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Control of an optical transmitter in a radio over fibre system |
US10187149B2 (en) * | 2017-05-05 | 2019-01-22 | Cisco Technology, Inc. | Downstream node setup |
WO2021095192A1 (en) * | 2019-11-14 | 2021-05-20 | 日本電信電話株式会社 | Optical communication system, optical line terminal, and optical communication control method |
US11296791B1 (en) * | 2020-10-02 | 2022-04-05 | Cisco Technology, Inc. | Auto-tuneable optical transceiver modules |
US11536916B1 (en) * | 2021-05-10 | 2022-12-27 | Amazon Technologies, Inc. | Pathloss optimization for optical systems |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0637148A1 (en) * | 1993-07-31 | 1995-02-01 | Nortel Networks Corporation | Wavelength division multiplex optical transmission system using optical amplification |
US5392154A (en) * | 1994-03-30 | 1995-02-21 | Bell Communications Research, Inc. | Self-regulating multiwavelength optical amplifier module for scalable lightwave communications systems |
GB2294170A (en) * | 1994-09-26 | 1996-04-17 | Fujitsu Ltd | Optical amplification of wavelength-division-multiplexed signals |
US5557439A (en) * | 1995-07-25 | 1996-09-17 | Ciena Corporation | Expandable wavelength division multiplexed optical communications systems |
EP0762677A2 (en) * | 1995-08-23 | 1997-03-12 | Fujitsu Limited | Optical communication system which determines the spectrum of a wavelength division multiplexed signal and performs various processes in accordance with the determined spectrum |
US5812710A (en) * | 1996-02-07 | 1998-09-22 | Fujitsu Limited | Apparatus and method for optical equalization and amplification |
US5815299A (en) * | 1995-09-08 | 1998-09-29 | Alcatel N.V. | Method and system for equalizing respective power levels of channels of a received optical frequency division multiplexed signal |
US5900983A (en) * | 1997-08-22 | 1999-05-04 | Lucent Technologies Inc. | Level-setting optical attenuator |
US5963291A (en) * | 1997-07-21 | 1999-10-05 | Chorum Technologies Inc. | Optical attenuator using polarization modulation and a feedback controller |
US5970201A (en) * | 1997-09-18 | 1999-10-19 | Lucent Technologies Inc. | Power regulation in optical networks |
US5974216A (en) * | 1997-02-13 | 1999-10-26 | Nec Corporation | Optical waveguide electrically controlled variable attenuator |
US6031647A (en) * | 1996-10-23 | 2000-02-29 | Nortel Networks Corporation | Stable power control for optical transmission systems |
US6157475A (en) * | 1998-09-30 | 2000-12-05 | Alcatel | Optical channel regulator and method |
-
1998
- 1998-09-30 US US09/164,224 patent/US5923450A/en not_active Ceased
- 1998-12-16 US US09/212,972 patent/US6157475A/en not_active Expired - Fee Related
-
2004
- 2004-03-16 US US10/802,118 patent/USRE39378E1/en not_active Expired - Lifetime
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0637148A1 (en) * | 1993-07-31 | 1995-02-01 | Nortel Networks Corporation | Wavelength division multiplex optical transmission system using optical amplification |
US5392154A (en) * | 1994-03-30 | 1995-02-21 | Bell Communications Research, Inc. | Self-regulating multiwavelength optical amplifier module for scalable lightwave communications systems |
GB2294170A (en) * | 1994-09-26 | 1996-04-17 | Fujitsu Ltd | Optical amplification of wavelength-division-multiplexed signals |
US5557439A (en) * | 1995-07-25 | 1996-09-17 | Ciena Corporation | Expandable wavelength division multiplexed optical communications systems |
EP0762677A2 (en) * | 1995-08-23 | 1997-03-12 | Fujitsu Limited | Optical communication system which determines the spectrum of a wavelength division multiplexed signal and performs various processes in accordance with the determined spectrum |
US5815299A (en) * | 1995-09-08 | 1998-09-29 | Alcatel N.V. | Method and system for equalizing respective power levels of channels of a received optical frequency division multiplexed signal |
US5812710A (en) * | 1996-02-07 | 1998-09-22 | Fujitsu Limited | Apparatus and method for optical equalization and amplification |
US6031647A (en) * | 1996-10-23 | 2000-02-29 | Nortel Networks Corporation | Stable power control for optical transmission systems |
US5974216A (en) * | 1997-02-13 | 1999-10-26 | Nec Corporation | Optical waveguide electrically controlled variable attenuator |
US5963291A (en) * | 1997-07-21 | 1999-10-05 | Chorum Technologies Inc. | Optical attenuator using polarization modulation and a feedback controller |
US5900983A (en) * | 1997-08-22 | 1999-05-04 | Lucent Technologies Inc. | Level-setting optical attenuator |
US5970201A (en) * | 1997-09-18 | 1999-10-19 | Lucent Technologies Inc. | Power regulation in optical networks |
US6157475A (en) * | 1998-09-30 | 2000-12-05 | Alcatel | Optical channel regulator and method |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070003281A1 (en) * | 2005-06-30 | 2007-01-04 | Infinera Corporation | Active control loop for power control of optical channel groups |
US8064771B2 (en) * | 2005-06-30 | 2011-11-22 | Infinera Corporation | Active control loop for power control of optical channel groups |
US20070154213A1 (en) * | 2005-12-30 | 2007-07-05 | Adva Ag Optical Networking | Method and device for monitoring an optical transmission line, especially an optical transmission line to an end subscriber of a transmission network |
US7778544B2 (en) * | 2005-12-30 | 2010-08-17 | Adva Ag Optical Networking | Method and device for monitoring an optical transmission line, especially an optical transmission line to an end subscriber of a transmission network |
US20100296808A1 (en) * | 2009-05-22 | 2010-11-25 | Hinderthuer Henning | Method and device for the 1+1 protection of an optical transmission path |
US8213790B2 (en) * | 2009-05-22 | 2012-07-03 | Adva Ag Optical Networking | Method and device for the 1+1 protection of an optical transmission path |
Also Published As
Publication number | Publication date |
---|---|
US5923450A (en) | 1999-07-13 |
US6157475A (en) | 2000-12-05 |
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Legal Events
Date | Code | Title | Description |
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FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: CREDIT SUISSE AG, NEW YORK Free format text: SECURITY AGREEMENT;ASSIGNOR:LUCENT, ALCATEL;REEL/FRAME:029821/0001 Effective date: 20130130 Owner name: CREDIT SUISSE AG, NEW YORK Free format text: SECURITY AGREEMENT;ASSIGNOR:ALCATEL LUCENT;REEL/FRAME:029821/0001 Effective date: 20130130 |
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Owner name: ALCATEL LUCENT, FRANCE Free format text: CHANGE OF NAME;ASSIGNOR:ALCATEL;REEL/FRAME:032884/0527 Effective date: 20061130 |
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AS | Assignment |
Owner name: ALCATEL LUCENT, FRANCE Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CREDIT SUISSE AG;REEL/FRAME:033868/0001 Effective date: 20140819 |
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AS | Assignment |
Owner name: PROVENANCE ASSET GROUP LLC, CONNECTICUT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NOKIA TECHNOLOGIES OY;NOKIA SOLUTIONS AND NETWORKS BV;ALCATEL LUCENT SAS;REEL/FRAME:043877/0001 Effective date: 20170912 Owner name: NOKIA USA INC., CALIFORNIA Free format text: SECURITY INTEREST;ASSIGNORS:PROVENANCE ASSET GROUP HOLDINGS, LLC;PROVENANCE ASSET GROUP LLC;REEL/FRAME:043879/0001 Effective date: 20170913 Owner name: CORTLAND CAPITAL MARKET SERVICES, LLC, ILLINOIS Free format text: SECURITY INTEREST;ASSIGNORS:PROVENANCE ASSET GROUP HOLDINGS, LLC;PROVENANCE ASSET GROUP, LLC;REEL/FRAME:043967/0001 Effective date: 20170913 |
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Owner name: NOKIA US HOLDINGS INC., NEW JERSEY Free format text: ASSIGNMENT AND ASSUMPTION AGREEMENT;ASSIGNOR:NOKIA USA INC.;REEL/FRAME:048370/0682 Effective date: 20181220 |
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Owner name: PROVENANCE ASSET GROUP LLC, CONNECTICUT Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CORTLAND CAPITAL MARKETS SERVICES LLC;REEL/FRAME:058983/0104 Effective date: 20211101 Owner name: PROVENANCE ASSET GROUP HOLDINGS LLC, CONNECTICUT Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CORTLAND CAPITAL MARKETS SERVICES LLC;REEL/FRAME:058983/0104 Effective date: 20211101 Owner name: PROVENANCE ASSET GROUP LLC, CONNECTICUT Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:NOKIA US HOLDINGS INC.;REEL/FRAME:058363/0723 Effective date: 20211129 Owner name: PROVENANCE ASSET GROUP HOLDINGS LLC, CONNECTICUT Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:NOKIA US HOLDINGS INC.;REEL/FRAME:058363/0723 Effective date: 20211129 |
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Owner name: RPX CORPORATION, CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PROVENANCE ASSET GROUP LLC;REEL/FRAME:059352/0001 Effective date: 20211129 |