A Survivable and Flexible WDM Access Network by Alternate FSO- and Fiber-Paths for Fault Protection

Chien Hung Yeh*, Han Shin Ko, Shien Kuei Liaw, Li Hung Liu, Jing Heng Chen, Chi Wai Chow

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Inthe work, we study and express a new wavelength-division-multiplexing passive optical network (WDM-PON) architecture with fiber fault protection. The designed optical network unit (ONU) module and periodic spectrum of 2 × N array waveguide grating (AWG) are applied to produce the self-protected mechanism. Here, we employ the free space optical communication (FSO)- and fiber-based connection between two adjacent ONUs to achieve signal relink. Moreover, the corresponding signal performances of downstream and upstream are also analyzed and discussed.

Original languageEnglish
JournalIEEE Photonics Journal
Volume14
Issue number1
DOIs
StatePublished - 1 Feb 2022

Keywords

  • Fault protection
  • Free space optical communication (FSO)
  • On-off keying (OOK)
  • Passive optical network (PON)
  • Wavelength-division-multiplexing (WDM)

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