Open AccessLow overhead slipless carrier phase estimation scheme
Author(s) -
Haiquan Cheng,
Yan Li,
Deming Kong,
Jizhao Zang,
Jian Wu,
Jenshan Lin
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.020740
Subject(s) - laser linewidth , phase noise , phase shift keying , bit error rate , optics , signal to noise ratio (imaging) , computer science , quadrature amplitude modulation , electronic engineering , physics , telecommunications , laser , engineering , channel (broadcasting)
Two slipless schemes are compared with application to single carrier 30 Gbaud quadrature phase shift keying (QPSK) system. An equivalent linewidth model considering the phase noise induced by both the laser linewidth and fiber nonlinearity is applied in the performance analysis. The simulation results show that it is possible to mitigate cycle slip (CS) using only 0.39% pilot overhead for the proposed blind carrier phase recovery (CPR) + pilot-symbols-aided phase unwrapping (PAPU) scheme within 1 dB signal-to-noise ratio (SNR) penalty limit at the bit error ratio (BER) of 10(-3) with 4 MHz equivalent linewidth.