Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22206
Title: In-service chromatic dispersion monitoring based on imperfect phase tuned delay interferometer for NRZ-DPSK systems
Authors: Zhao, J
Li, Z
Qureshi, KK
Lau, APT 
Lu, C 
Tam, HY 
Keywords: Chromatic dispersion
Differential phase-shift keying
Optical fiber communication
Optical performance monitoring
Issue Date: 2009
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2009, v. 7632, 76322V How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: Differential phase-shift keying (DPSK) modulation format has been widely employed in high speed long haul transmission systems. The DPSK modulation format is a promising technique to increase the system performance, for example: extending the transmission distance, reducing the OSNR requirement and suppressing the nonlinearity. So the optical signal performance monitoring is quite necessary and indispensible for this modulation format. In this paper, a chromatic dispersion (CD) monitoring method for DPSK signals has been demonstrated using an optical delay interferometer with imperfect phase adjustment. We found the eye diagrams shown inclination with the combination effect of phase error and residual CD. This method can not only be used for CD monitoring but also can discriminate dispersion polarity. The CD monitoring range could cover from -425 to +425ps/nm of 10 GHz NRZ-DPSK system.
Description: Optical Transmission Systems, Switching, and Subsystems VII, Shanghai, 2-6 November 2009
URI: http://hdl.handle.net/10397/22206
ISBN: 9780819480347
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.850017
Appears in Collections:Conference Paper

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