Telecommunications Science ›› 2022, Vol. 38 ›› Issue (7): 37-42.doi: 10.11959/j.issn.1000-0801.2022157

• Topic: Future Optical Communication Technology • Previous Articles     Next Articles

Key technologies development and application prospect of ROADM all-optical switching network

Kai LV1, Bin QI2, Shengqian ZHONG1, Anxu ZHANG1, Lipeng FENG1   

  1. 1 Research Institute of China Telecom Co., Ltd., Beijing 102209, China
    2 Huawei Technologies Co., Ltd., Dongguan 518129, China
  • Revised:2022-07-07 Online:2022-07-20 Published:2022-07-01
  • Supported by:
    The National Key Research and Development Program of China(2018YFB1801200)

Abstract:

The development history of reconfigurable optical add/drop multiplexer (ROADM) networks, ROADM technical solutions and the deployment of ROADM networks in China were described.And the development direction of the key technologies of ROADM was described, including optical cross-connect (OXC), high dimensions wavelength selected switch (WSS), colorless/directionless/contentionless ROADM (CDC-ROADM), 400 Gbit/s FlexGrid ROADM, and next-generation wavelength switched optical networks (WSON2.0) intelligent control plane technologies.The existing ROADM network application scenarios and technology development trend were analyzed, and the future prospects of the ROADM all-optical switching network were looked forward to.

Key words: all-optical network, OXC, CDC-ROADM, 400 Gbit/s, WSON

CLC Number: 

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