GB2612689B - Optical add/drop multiplexer branching unit, communication system, and method for signal transmission - Google Patents

Optical add/drop multiplexer branching unit, communication system, and method for signal transmission

Info

Publication number
GB2612689B
GB2612689B GB2213275.7A GB202213275A GB2612689B GB 2612689 B GB2612689 B GB 2612689B GB 202213275 A GB202213275 A GB 202213275A GB 2612689 B GB2612689 B GB 2612689B
Authority
GB
United Kingdom
Prior art keywords
communication system
signal transmission
branching unit
optical add
drop multiplexer
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.)
Active
Application number
GB2213275.7A
Other versions
GB2612689A (en
GB202213275D0 (en
Inventor
Wang Yan
Yang Li
Shao Yue
Xu Changwu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HMN Technologies Co Ltd
Original Assignee
HMN Technologies Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HMN Technologies Co Ltd filed Critical HMN Technologies Co Ltd
Publication of GB202213275D0 publication Critical patent/GB202213275D0/en
Publication of GB2612689A publication Critical patent/GB2612689A/en
Application granted granted Critical
Publication of GB2612689B publication Critical patent/GB2612689B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04J14/0216—Bidirectional architectures
    • 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
    • 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
    • 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
    • H04J14/0215—Architecture 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
GB2213275.7A 2021-09-22 2022-09-12 Optical add/drop multiplexer branching unit, communication system, and method for signal transmission Active GB2612689B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111103884.XA CN113572564B (en) 2021-09-22 2021-09-22 Optical add/drop multiplexer (OADM) splitter, communication system and signal transmission method

Publications (3)

Publication Number Publication Date
GB202213275D0 GB202213275D0 (en) 2022-10-26
GB2612689A GB2612689A (en) 2023-05-10
GB2612689B true GB2612689B (en) 2023-11-08

Family

ID=78173941

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2213275.7A Active GB2612689B (en) 2021-09-22 2022-09-12 Optical add/drop multiplexer branching unit, communication system, and method for signal transmission

Country Status (3)

Country Link
JP (1) JP7325580B2 (en)
CN (1) CN113572564B (en)
GB (1) GB2612689B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114244447B (en) * 2022-02-25 2022-04-29 华海通信技术有限公司 Intelligent feedback system with configurable modulation depth
CN114584207B (en) * 2022-05-05 2022-07-08 华海通信技术有限公司 Reconfigurable optical add-drop multiplexer
CN117439696B (en) * 2023-12-19 2024-02-27 华海通信技术有限公司 Optical path communication structure applied to submarine observation network communication equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050031349A1 (en) * 2003-08-09 2005-02-10 Sung-Bum Park Bidirectional optical add-drop multiplexer
US20060024059A1 (en) * 2004-07-30 2006-02-02 Samsung Electronics Co., Ltd Bi-directional optical add-drop multiplexer
US20160149663A1 (en) * 2014-11-21 2016-05-26 Nec Laboratories America, Inc. Low Cost Secure Submarine ROADM Branching Unit Using Bidirectional Wavelength-Selective Switch

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0842574B1 (en) * 1995-08-04 2002-04-03 Alcatel Add/drop multiplexer
CA2300235A1 (en) * 1999-03-22 2000-09-22 Kazem A. Sohraby Wavelength division multiplexed system for optical access rings
CN1694386A (en) * 2005-06-27 2005-11-09 烽火通信科技股份有限公司 Asymmetric reconstructable OADM device
JP4920489B2 (en) * 2007-05-16 2012-04-18 株式会社日立製作所 Optical add / drop device
CN101222311B (en) * 2008-01-29 2010-12-08 杭州华三通信技术有限公司 Real-time packet loss recovery method, system and receiving terminal unit
US20110262143A1 (en) * 2010-04-21 2011-10-27 Nec Laboratories America, Inc. Roadm systems and methods of operation
US9641275B2 (en) 2011-06-17 2017-05-02 Tyco Electronics Subsea Communications Llc Symmetric optical multiplexing node
WO2013123665A1 (en) * 2012-02-23 2013-08-29 华为海洋网络有限公司 Optical add-drop multiplexer branch unit and control method thereof
CN102665152B (en) * 2012-05-11 2014-12-10 武汉邮电科学研究院 Novel wide-area coverage hybrid wavelength-time division multiplexing passive optical network system
EP3089382B1 (en) * 2013-12-25 2018-11-21 Huawei Marine Networks Co., Limited Optical branching unit for optical add drop multiplexing
CN105164953B (en) * 2013-12-31 2019-04-12 华为海洋网络有限公司 A kind of optical add/drop multiplexer and splitter
US9735914B2 (en) 2014-07-25 2017-08-15 Nec Corporation Mechanism for traffic privacy in reconfigurable add/drop multiplexer based submarine networks
CN111865471B (en) * 2019-04-30 2021-12-21 华为技术有限公司 Optical add/drop multiplexer and control method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050031349A1 (en) * 2003-08-09 2005-02-10 Sung-Bum Park Bidirectional optical add-drop multiplexer
US20060024059A1 (en) * 2004-07-30 2006-02-02 Samsung Electronics Co., Ltd Bi-directional optical add-drop multiplexer
US20160149663A1 (en) * 2014-11-21 2016-05-26 Nec Laboratories America, Inc. Low Cost Secure Submarine ROADM Branching Unit Using Bidirectional Wavelength-Selective Switch

Also Published As

Publication number Publication date
JP2023046243A (en) 2023-04-03
CN113572564A (en) 2021-10-29
CN113572564B (en) 2021-11-26
GB2612689A (en) 2023-05-10
JP7325580B2 (en) 2023-08-14
GB202213275D0 (en) 2022-10-26

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