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Title: High-speed WDM-PON using CW injection-locked Fabry-Pérot laser diodes
Authors: Xu, Z
Wen, YJ
Zhong, WD
Chae, CJ
Cheng, XF
Wang, Y
Lu, C 
Shankar, J
Issue Date: 19-Mar-2007
Source: Optics express, 19 Mar. 2007, v. 15, no. 6, p. 2953-2962
Abstract: 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.
Keywords: Continuous wave lasers
Fabry-Perot interferometers
Injection lasers
Light modulation
Optical systems
Semiconductor lasers
Publisher: Optical Society of America
Journal: Optics express 
EISSN: 1094-4087
DOI: 10.1364/OE.15.002953
Rights: © 2007 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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