High-speed WDM-PON using CW injection-locked Fabry-Pérot laser diodes

Zhaowen Xu, Yang Jing Wen, Wen De Zhong, Chang Joon Chae, Xiao Fei Cheng, Yixin Wang, Chao Lu, Jaya Shankar

Research output: Journal article publicationJournal articleAcademic researchpeer-review

111 Citations (Scopus)


We propose a new WDM-PON architecture using Fabry-Pérot laser diodes (FP-LDs) that are injection-locked by continuous wave (CW) seed light. The modulation characteristics of the CW light injection-locked FP-LD are first investigated. Both uplink and downlink transmissions at 10 Gb/s are experimentally demonstrated using the proposed CW injection-locked FP-LDs. It is shown that up to 16 laser cavity modes can be selectively injection-locked with side mode suppression ratio larger than 30dB. The effects of the location of FP-LD cavity modes, transmission distance, and injection wavelength detuning on the overall transmission performance are investigated. The possibility of eliminating polarization dependence of the proposed CW injection scheme is also experimentally demonstrated by properly configuring a depolarizer. The deployment cost for the proposed WDM PON is potentially low from the fact that the CW laser sources located at the central office can be shared by many WDM-PONs and low-cost FP-LDs are used as light sources for data rates as high as 10 Gb/s.
Original languageEnglish
Pages (from-to)2953-2962
Number of pages10
JournalOptics Express
Issue number6
Publication statusPublished - 19 Mar 2007

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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