Novel real-time homodyne coherent receiver using a feed-forward based carrier extraction scheme for phase modulated signals


We report a novel real-time homodyne coherent receiver based on a DPSK optical-electrical-optical (OEO) regenerator used to extract a carrier from carrier-less phase modulated signals based on feed-forward based modulation stripping. The performance of this non-DSP based coherent receiver was evaluated for 10.66Gbit/s BPSK signals. Self-homodyne coherent detection and homodyne detection with an injection-locked local oscillator laser was demonstrated. The performance was evaluated by measuring the electrical signal-to-noise (SNR) and recording the eye diagrams. Using injection-locking for the LO improves the performance and enables homodyne detection with optical injection-locking to operate with carrier-less BPSK signals without the need for polarization multiplexed pilot-tones.

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Additional Information: © 2011 OSA 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.
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Publication ISSN: 1094-4087
Last Modified: 04 Jan 2024 08:10
Date Deposited: 07 Jan 2013 10:27
Full Text Link: http://www.opti ... RI=oe-19-9-8320
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2011-04-25
Authors: Ibrahim, Selwan K.
Sygletos, Stylianos (ORCID Profile 0000-0003-2063-8733)
Weerasuriya, Ruwan
Ellis, Andrew D. (ORCID Profile 0000-0002-0417-0547)



Version: Published Version

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