Please use this identifier to cite or link to this item: https://doi.org/10.1109/LPT.2009.2022750
Title: Laser linewidth tolerance of decision-aided maximum likelihood phase estimation in coherent optical M-ary PSK and QAM systems
Authors: Zhang, S.
Kam, P.Y. 
Yu, C. 
Chen, J.
Keywords: Coherent detection
Optical fiber communication
Issue Date: 2009
Source: Zhang, S.,Kam, P.Y.,Yu, C.,Chen, J. (2009). Laser linewidth tolerance of decision-aided maximum likelihood phase estimation in coherent optical M-ary PSK and QAM systems. IEEE Photonics Technology Letters 21 (15) : 1075-1077. ScholarBank@NUS Repository. https://doi.org/10.1109/LPT.2009.2022750
Abstract: This letter extends the decision-aided (DA) maximum likelihood (ML) phase estimation in an Mary phase-shift keying (PSK) system to quadrature amplitude modulation (QAM) signals. The block length effect is simulated for both M-ary PSK and QAM systems, and also investigated in M-ary PSK systems through analysis. Our results show that the tolerance of DA ML to laser linewidth for square 16-QAM can be increased by >10 times compared to the block Mth power scheme. © 2009 IEEE.
Source Title: IEEE Photonics Technology Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/56461
ISSN: 10411135
DOI: 10.1109/LPT.2009.2022750
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