Utilizing single-wavelength for OFDM wireless downstream and remodulated OOK upstream in colorless access network to mitigate Rayleigh backscattering noise

Chien Hung Yeh*, Chi Wai Chow, Wen Piao Lin, Jhao Ren Chen, Wei Yao You

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

To avoid the Rayleigh backscattering (RB) beat noise in colorless wavelength division multiplexing (WDM) access architecture, the dual-band modulation diagram is proposed for demonstration. In the study, 11.25 Gbit/s orthogonal frequency division multiplexing (OFDM) wireless downstream and 2.5 Gbit/s remodulated on–off keying (OOK) upstream traffic are achieved by using same wavelength. Moreover, the bit error rate (BER) measurements of wireless downstream and wired upstream wavelengths are also executed and discussed after 20 km fiber connection.

Original languageEnglish
Article number102268
JournalOptical Fiber Technology
Volume58
DOIs
StatePublished - Sep 2020

Keywords

  • OFDM-QAM
  • Optical access network
  • Rayleigh backscattering (RB) noise
  • WDM-PON

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