JP4542144B2 - 雑音装荷光ファイバ伝送システム - Google Patents
雑音装荷光ファイバ伝送システム Download PDFInfo
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- JP4542144B2 JP4542144B2 JP2007518313A JP2007518313A JP4542144B2 JP 4542144 B2 JP4542144 B2 JP 4542144B2 JP 2007518313 A JP2007518313 A JP 2007518313A JP 2007518313 A JP2007518313 A JP 2007518313A JP 4542144 B2 JP4542144 B2 JP 4542144B2
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- Japan
- Prior art keywords
- noise
- optical
- channel
- signal
- output
- 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 - Fee Related
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- 230000005540 biological transmission Effects 0.000 title claims description 57
- 239000013307 optical fiber Substances 0.000 title description 3
- 230000003287 optical effect Effects 0.000 claims description 158
- 230000003321 amplification Effects 0.000 claims description 11
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 11
- 230000006854 communication Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 9
- 230000002238 attenuated effect Effects 0.000 claims description 6
- 230000002269 spontaneous effect Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 34
- 238000001228 spectrum Methods 0.000 description 23
- 238000010586 diagram Methods 0.000 description 19
- 238000000926 separation method Methods 0.000 description 6
- 230000003595 spectral effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052691 Erbium Inorganic materials 0.000 description 2
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- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000000411 transmission spectrum Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 230000002452 interceptive effect Effects 0.000 description 1
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- 238000007493 shaping process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- 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
- 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
- H04B10/564—Power control
-
- 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
- H04J14/02212—Power control, e.g. to keep the total optical power constant by addition of a dummy signal
-
- 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
- H04J14/02216—Power control, e.g. to keep the total optical power constant by gain equalization
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Description
106,107,108 光ケーブル
110 中継器
120,130 端子
202 信号源
204 WDM信号
206 パワー調節器
208 減衰WDM出力信号
210 光増幅器
212 出力信号
Claims (1)
- WDM(波長分割多重)光システムであって、
前記WDM光システムの少なくとも1つの使用チャネル及び少なくとも1つの不使用チャネルを含む帯域幅を有するWDM信号を供給するように構成されたWDM送信器であって、前記少なくとも1つの使用チャンネルがその上に情報信号を有するものであるWDM送信器、
前記WDM信号を前記帯域幅にわたって減衰させるための前記送信器に接続された少なくとも1つのパワー調節器、
前記少なくとも1つのパワー調節器に接続された光増幅器であって、当該光増幅器が前記減衰されたWDM信号を増幅して前記帯域幅にわたって増幅された自然放出(ASE)雑音を生成することにより、前記使用チャネル上に前記情報信号のそれぞれを含む出力を供給し、前記使用チャネル及び前記不使用チャネルに前記雑音を供給するように構成されたもの、及び
複数の中継器を含み、前記光増幅器の前記出力が当該複数の中継器のうちの第1の中継器に供給される光増幅伝送経路、
を有してなるWDM(波長分割多重)光システムにおいて、
前記パワー調整器が、信頼できるデータ通信を達成するために、前記情報信号のための所望の光学的なQを得られるように、前記WDM信号を減衰するように構成されている
ことを特徴とするシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/877,059 US7526201B2 (en) | 2004-06-25 | 2004-06-25 | Optical fiber transmission system with noise loading |
PCT/US2005/022502 WO2006012303A2 (en) | 2004-06-25 | 2005-06-23 | Optical fiber transmission system with noise loading |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009274264A Division JP4981882B2 (ja) | 2004-06-25 | 2009-12-02 | 雑音装荷光ファイバ伝送システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008504747A JP2008504747A (ja) | 2008-02-14 |
JP4542144B2 true JP4542144B2 (ja) | 2010-09-08 |
Family
ID=35505883
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007518313A Expired - Fee Related JP4542144B2 (ja) | 2004-06-25 | 2005-06-23 | 雑音装荷光ファイバ伝送システム |
JP2009274264A Expired - Fee Related JP4981882B2 (ja) | 2004-06-25 | 2009-12-02 | 雑音装荷光ファイバ伝送システム |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009274264A Expired - Fee Related JP4981882B2 (ja) | 2004-06-25 | 2009-12-02 | 雑音装荷光ファイバ伝送システム |
Country Status (6)
Country | Link |
---|---|
US (2) | US7526201B2 (ja) |
EP (1) | EP1766812B1 (ja) |
JP (2) | JP4542144B2 (ja) |
AU (1) | AU2005267180B2 (ja) |
CA (1) | CA2571414C (ja) |
WO (1) | WO2006012303A2 (ja) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040130778A1 (en) * | 2003-01-06 | 2004-07-08 | Corvis Corporation | Optical transmission systems including optical amplifiers and methods of use therein |
US7526201B2 (en) * | 2004-06-25 | 2009-04-28 | Tyco Telecommunications (Us) Inc. | Optical fiber transmission system with noise loading |
CA2575067C (en) * | 2004-08-11 | 2015-10-06 | Tyco Telecommunications (Us) Inc. | System and method for spectral loading an optical transmission system |
JP4557771B2 (ja) * | 2005-03-30 | 2010-10-06 | 富士通株式会社 | 光伝送装置 |
US8379297B2 (en) | 2006-05-30 | 2013-02-19 | Weatherford/Lamb, Inc. | Wavelength swept light source and filter based on sweep function, and its method of operation |
US20090290160A1 (en) * | 2006-05-30 | 2009-11-26 | Domino Taverner | Wavelength sweep control |
US8045861B1 (en) * | 2006-11-17 | 2011-10-25 | Hrl Laboratories, Llc | Method and system for spectral suppression of noise in a communication signal |
CN100546229C (zh) * | 2007-04-10 | 2009-09-30 | 华为技术有限公司 | 海缆光补偿的装置和方法 |
US8554081B2 (en) * | 2008-07-09 | 2013-10-08 | Tyco Electronics Subsea Communications, Llc | Optical add/drop multiplexer including reconfigurable filters and system including the same |
US8401392B2 (en) * | 2010-02-17 | 2013-03-19 | Tyco Electronics Subsea Communications Llc | Flexible branching unit and system including the same |
US9319169B2 (en) | 2010-07-07 | 2016-04-19 | Tyco Electronics Subsea Communications Llc | Orthogonally-combining interleaving filter multiplexer and systems and methods using same |
US20120087658A1 (en) * | 2010-10-12 | 2012-04-12 | Tyco Electronics Subsea Communications Llc | Wavelength Selective Switch Band Aggregator and Band Deaggregator and Systems and Methods Using Same |
JP5724416B2 (ja) * | 2011-02-03 | 2015-05-27 | 富士通株式会社 | 光伝送装置および光伝送システム |
JP5776254B2 (ja) * | 2011-03-25 | 2015-09-09 | 富士通株式会社 | 通信システム、通信装置および通信方法 |
CN102763350B (zh) | 2012-05-02 | 2016-11-09 | 华为技术有限公司 | 一种波长通道光性能监测的方法、系统和节点设备 |
US8780277B2 (en) * | 2012-05-22 | 2014-07-15 | Sony Corporation | Television receiver, television controller circuitry and method |
US9276694B2 (en) * | 2012-10-08 | 2016-03-01 | Tyco Electronics Subsea Communications Llc | Fault recovery in branched optical networks |
US9509113B2 (en) * | 2014-06-17 | 2016-11-29 | Fujitsu Limited | Transient gain cancellation for optical amplifiers |
US10419147B2 (en) | 2014-09-03 | 2019-09-17 | Alcatel Lucent | Optical line loading using variable bandwidth noise |
US20160173202A1 (en) * | 2014-12-16 | 2016-06-16 | Alcatel-Lucent Canada Inc. | Adaptive Noise Loading in Optical Communication Networks |
US10218454B2 (en) | 2017-03-13 | 2019-02-26 | Google Llc | Open, modular, and scalable optical line system |
CN108880670B (zh) * | 2017-05-11 | 2021-12-03 | 海思光电子有限公司 | Mpi噪声生成器、检测mpi噪声问题的方法和装置 |
US11362755B2 (en) | 2018-08-31 | 2022-06-14 | Nokia Solutions And Networks Oy | Adaptive capacity optimization in optical transmission systems |
Family Cites Families (21)
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USH1702H (en) | 1995-01-06 | 1998-01-06 | Esman; Ronald D. | Wideband fiber-optic signal processor |
GB2299683A (en) | 1995-04-04 | 1996-10-09 | Northern Telecom Ltd | Optical notch filter manufacture in a single mode fibre |
JPH09116492A (ja) | 1995-10-18 | 1997-05-02 | Nec Corp | 波長多重光増幅中継伝送方法およびその装置 |
JPH09321701A (ja) | 1996-05-31 | 1997-12-12 | Fujitsu Ltd | 光通信システム及び光増幅器 |
US5754718A (en) | 1996-08-26 | 1998-05-19 | Jds Fitel Inc. | Hybrid optical filtering circuit |
US5719697A (en) * | 1996-10-10 | 1998-02-17 | At&T Submarine Systems, Inc. | Method and apparatus for combining add/drop optical signal lines from a plurality of branching units |
US6400498B1 (en) * | 1997-05-29 | 2002-06-04 | Nec Corporation | Optical signal repeating and amplifying device and optical level adjusting device |
US6025941A (en) * | 1997-09-15 | 2000-02-15 | Lucent Technologies Inc. | Stable wavelength division multiplex ring network |
JP3995781B2 (ja) * | 1998-02-02 | 2007-10-24 | 富士通株式会社 | 波長選択フィルタを用いた光分岐・挿入装置及び光分岐装置 |
US5923797A (en) | 1998-03-12 | 1999-07-13 | Lanhopper System, Inc. | Frequency-controlled optical switch |
US20020024706A1 (en) * | 1998-11-06 | 2002-02-28 | Fausto Meli | Multiple-wavelength amplified telecommunications system with gain compensation |
JP3803000B2 (ja) * | 1999-09-28 | 2006-08-02 | 富士通株式会社 | 波長間光パワー偏差のモニタ方法、並びに、それを用いた光等化器および光増幅器 |
US6256138B1 (en) | 2000-01-07 | 2001-07-03 | Lucent Technologies Inc | Fiber filter to improve return loss at signal band of a fiber amplifier for pump laser modules |
US6704511B1 (en) | 2000-03-27 | 2004-03-09 | Tyco Telecommunications (Us) Inc. | Optical fiber transmission system with noise loaded idler channels |
JP3875190B2 (ja) * | 2000-07-31 | 2007-01-31 | 三菱電機株式会社 | 波長分割多重光伝送装置 |
JP2002051008A (ja) * | 2000-08-07 | 2002-02-15 | Kddi Submarine Cable Systems Inc | 光伝送システム及び光送信装置 |
US7106969B1 (en) * | 2001-02-12 | 2006-09-12 | Atrica Israel Ltd. | Optical network terminator |
JP2002353939A (ja) * | 2001-05-25 | 2002-12-06 | Kddi Submarine Cable Systems Inc | 光送信装置 |
US7054562B1 (en) * | 2002-02-01 | 2006-05-30 | Ciena Corporation | Method and system for suppressing ASE on a WDM network |
ITMI20030050A1 (it) * | 2003-01-15 | 2004-07-16 | Marconi Comm Ltd | Sistema di trasmissione ad anello amplificato ottico |
US7526201B2 (en) * | 2004-06-25 | 2009-04-28 | Tyco Telecommunications (Us) Inc. | Optical fiber transmission system with noise loading |
-
2004
- 2004-06-25 US US10/877,059 patent/US7526201B2/en not_active Expired - Fee Related
-
2005
- 2005-06-23 AU AU2005267180A patent/AU2005267180B2/en not_active Ceased
- 2005-06-23 WO PCT/US2005/022502 patent/WO2006012303A2/en not_active Application Discontinuation
- 2005-06-23 EP EP05784211.4A patent/EP1766812B1/en not_active Expired - Fee Related
- 2005-06-23 CA CA2571414A patent/CA2571414C/en not_active Expired - Fee Related
- 2005-06-23 JP JP2007518313A patent/JP4542144B2/ja not_active Expired - Fee Related
-
2009
- 2009-03-17 US US12/405,559 patent/US7881611B2/en not_active Expired - Fee Related
- 2009-12-02 JP JP2009274264A patent/JP4981882B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2571414A1 (en) | 2006-02-02 |
JP4981882B2 (ja) | 2012-07-25 |
CA2571414C (en) | 2014-08-12 |
WO2006012303A3 (en) | 2007-03-01 |
US20090214214A1 (en) | 2009-08-27 |
JP2008504747A (ja) | 2008-02-14 |
AU2005267180B2 (en) | 2010-03-18 |
EP1766812A2 (en) | 2007-03-28 |
EP1766812A4 (en) | 2012-02-01 |
EP1766812B1 (en) | 2014-12-24 |
AU2005267180A1 (en) | 2006-02-02 |
US7881611B2 (en) | 2011-02-01 |
JP2010093836A (ja) | 2010-04-22 |
US20050286905A1 (en) | 2005-12-29 |
WO2006012303A2 (en) | 2006-02-02 |
US7526201B2 (en) | 2009-04-28 |
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