JP6317357B2 - 分岐した光ネットワークにおける障害回復 - Google Patents
分岐した光ネットワークにおける障害回復 Download PDFInfo
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- JP6317357B2 JP6317357B2 JP2015536811A JP2015536811A JP6317357B2 JP 6317357 B2 JP6317357 B2 JP 6317357B2 JP 2015536811 A JP2015536811 A JP 2015536811A JP 2015536811 A JP2015536811 A JP 2015536811A JP 6317357 B2 JP6317357 B2 JP 6317357B2
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Classifications
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- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
-
- 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
- H04J14/0206—Express channels 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
- H04J14/0202—Arrangements therefor
- H04J14/0213—Groups of channels or wave bands arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Description
Claims (6)
- 波長分割多重化光システム(100)であって、
トランク経路(102)に、複数のエクスプレス・チャネルと、複数のドロップ・チャネルとを占有するトランク入力信号を提供するように構成された第1のトランク端末(A)と、
ブランチ経路(104)に、複数のアド・チャネルを占有するブランチ入力信号を提供するように構成されたブランチ端末(B)と、
前記トランク経路(102)と、前記ブランチ経路(104)とに結合され、前記トランク入力信号と前記ブランチ入力信号とを受信し、前記トランク経路(102)に前記エクスプレス・チャネルおよび前記アド・チャネルを含むトランク出力信号を提供し、前記ブランチ経路(104)に前記ドロップ・チャネルを含むブランチ出力信号とを提供するための光アド−ドロップ・マルチプレクサ(OADM)と、
前記OADMに結合され、前記トランク出力信号を受信するように構成された第2のトランク端末(C)と
を備え、前記第1のトランク端末(A)と、前記ブランチ端末(B)とのうちの少なくとも一方は、それぞれ、前記トランク入力信号または前記ブランチ入力信号の出力電力を調整し、前記トランク経路(102)または前記ブランチ経路(104)での障害から回復するように構成され、
前記調整はメリット関数を最小にするものであり、
前記第1のトランク端末(A)と、前記ブランチ端末(B)とのうちの前記少なくとも一方は、それぞれ、前記トランク入力信号または前記ブランチ入力信号における、第1の電力比と第2の電力比とを調整し、前記メリット関数を最小にするように構成され、
前記第1の電力比は、
- 前記メリット関数は、
- 前記メリット関数は、光信号対雑音比と、非線形位相シフトとに基づいている、請求項1に記載のシステム(100)。
- 分岐したWDM光ネットワークにおける障害回復のための方法(800)であって、
障害に応じて、メリット関数を最小にするように送信チャネル(804)の電力分布を調整するステップ
を含み、
前記調整するステップは、前記送信チャネルにおいて第1の電力比と、第2の電力比とを調整するステップを含み、
前記第1の電力比は、
- 前記メリット関数は、
- 前記メリット関数は、光信号対雑音比と、非線形位相シフトとに基づいている、請求項4に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261711165P | 2012-10-08 | 2012-10-08 | |
US61/711,165 | 2012-10-08 | ||
US13/841,619 | 2013-03-15 | ||
US13/841,619 US9276694B2 (en) | 2012-10-08 | 2013-03-15 | Fault recovery in branched optical networks |
PCT/US2013/063207 WO2014058702A1 (en) | 2012-10-08 | 2013-10-03 | Fault recovery in branched optical networks |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015533271A JP2015533271A (ja) | 2015-11-19 |
JP6317357B2 true JP6317357B2 (ja) | 2018-04-25 |
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Application Number | Title | Priority Date | Filing Date |
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JP2015536811A Active JP6317357B2 (ja) | 2012-10-08 | 2013-10-03 | 分岐した光ネットワークにおける障害回復 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9276694B2 (ja) |
EP (1) | EP2904724B1 (ja) |
JP (1) | JP6317357B2 (ja) |
CN (1) | CN104685811B (ja) |
WO (1) | WO2014058702A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5525041B2 (ja) * | 2009-05-14 | 2014-06-18 | タイコ エレクトロニクス サブシー コミュニケーションズ エルエルシー | 別個の分岐ユニットと所定波長フィルタ・ユニットを含む分岐構成およびこれを含むシステムおよび方法 |
US8891957B2 (en) * | 2011-07-13 | 2014-11-18 | Tyco Electronics Subsea Communications Llc | Method and system for fault recovery in an optical network |
WO2015096068A1 (zh) * | 2013-12-25 | 2015-07-02 | 华为海洋网络有限公司 | 一种光分插复用光分支器 |
CN107925475A (zh) * | 2015-08-03 | 2018-04-17 | 日本电气株式会社 | 光分插设备和光分插方法 |
US10230456B2 (en) * | 2016-09-21 | 2019-03-12 | Subcom, Llc | Branching configuration including a cross-coupling arrangement to provide fault tolerance and topside recovery in the event of subsea umbilical assembly failure and system and method including same |
CN111295851B (zh) * | 2017-10-30 | 2023-05-12 | 日本电气株式会社 | 海底光学通信系统和海底分支装置 |
EP3605890A1 (en) * | 2018-07-30 | 2020-02-05 | SubCom, LLC | Submarine cable branching units with fiber pair switching |
US11487063B2 (en) | 2020-03-31 | 2022-11-01 | Subcom, Llc | Pair routing between three undersea fiber optic cables |
Family Cites Families (20)
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US6816681B2 (en) | 1998-09-24 | 2004-11-09 | Nortel Networks Limited | Analogous channel method for performance monitoring and equalization in optical networks |
US6304347B1 (en) * | 1999-09-03 | 2001-10-16 | Oni Systems Corporation | Optical power management in an optical network |
US7430373B2 (en) * | 2003-03-10 | 2008-09-30 | Nec Corporation | Optical node processor, optical network system and its control method |
US7444078B1 (en) * | 2003-09-18 | 2008-10-28 | At&T Intellectual Property Ii, L.P. | Transient control solution for optical networks |
EP1538766B1 (en) * | 2003-12-04 | 2006-04-05 | Alcatel | Transmission controller and method for equalization of channels in a wavelength-division-muliplexing system |
JP4414800B2 (ja) * | 2004-03-25 | 2010-02-10 | 株式会社日立コミュニケーションテクノロジー | 光伝送装置およびその制御方法 |
US7526201B2 (en) * | 2004-06-25 | 2009-04-28 | Tyco Telecommunications (Us) Inc. | Optical fiber transmission system with noise loading |
EP1776792A4 (en) | 2004-08-11 | 2012-01-04 | Tyco Electronics Subsea Comm | SYSTEM AND METHOD FOR SPECTRAL LOADING OF A TRANSMISSION SYSTEM |
JP2006313782A (ja) * | 2005-05-06 | 2006-11-16 | Mitsubishi Electric Corp | 光伝送システム |
JP5136240B2 (ja) * | 2008-06-26 | 2013-02-06 | 日本電気株式会社 | 伝送路監視システム |
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 |
JP5240673B2 (ja) * | 2009-03-19 | 2013-07-17 | 日本電気株式会社 | 光信号レベル調整システム及びこれにおける情報解析・制御信号生成装置並びに情報解析・制御信号生成方法 |
JP5525041B2 (ja) * | 2009-05-14 | 2014-06-18 | タイコ エレクトロニクス サブシー コミュニケーションズ エルエルシー | 別個の分岐ユニットと所定波長フィルタ・ユニットを含む分岐構成およびこれを含むシステムおよび方法 |
CN101931471B (zh) * | 2009-06-23 | 2013-08-07 | 华为海洋网络有限公司 | 一种监控光纤线路状态的方法、中继器和海缆系统 |
EP2460296B1 (en) * | 2009-07-31 | 2020-02-12 | SubCom, LLC | Hybrid optical add-drop multiplexing network and wavelength allocation for the same |
JP2011077808A (ja) * | 2009-09-30 | 2011-04-14 | Fujitsu Ltd | 光伝送システム |
US8401391B2 (en) * | 2009-12-08 | 2013-03-19 | Tyco Electronics Subsea Communications Llc | Channel power management in a branched optical communication system |
US8401392B2 (en) * | 2010-02-17 | 2013-03-19 | Tyco Electronics Subsea Communications Llc | Flexible branching unit and system including the same |
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 |
WO2012119364A1 (en) * | 2011-07-27 | 2012-09-13 | Huawei Technologies Co., Ltd. | Method and apparatus for determining an optical signal-to-noise ratio (OSNR) penalty |
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2013
- 2013-03-15 US US13/841,619 patent/US9276694B2/en not_active Expired - Fee Related
- 2013-10-03 JP JP2015536811A patent/JP6317357B2/ja active Active
- 2013-10-03 CN CN201380052512.6A patent/CN104685811B/zh active Active
- 2013-10-03 EP EP13776925.3A patent/EP2904724B1/en active Active
- 2013-10-03 WO PCT/US2013/063207 patent/WO2014058702A1/en active Application Filing
Also Published As
Publication number | Publication date |
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CN104685811A (zh) | 2015-06-03 |
WO2014058702A1 (en) | 2014-04-17 |
CN104685811B (zh) | 2018-03-16 |
EP2904724B1 (en) | 2020-06-17 |
EP2904724A1 (en) | 2015-08-12 |
US9276694B2 (en) | 2016-03-01 |
JP2015533271A (ja) | 2015-11-19 |
US20140099098A1 (en) | 2014-04-10 |
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