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Conferences > COTA > 2006 > CThB > CThB4
  • Optical Amplifiers and Their Applications/Coherent Optical Technologies and Applications
  • Technical Digest (CD) (Optica Publishing Group, 2006),
  • paper CThB4
  • •https://doi.org/10.1364/COTA.2006.CThB4

Data-Aided Multi-Symbol Phase Estimation for Receiver Sensitivity Enhancement in Optical DQPSK

Xiang Liu

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Abstract

We present a data-aided multi-symbol phase estimation scheme to improve the receiver sensitivity of direct-detection DQPSK to approach that of coherent-detection QPSK in optically pre-amplified receivers. Performance-enhancement of >2 dB is obtained in a nonlinear-regime.

© 2006 Optical Society of America

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