Title :
Experimental demonstration of pilot-symbols-aided cycle slip mitigation for QPSK modulation format
Author :
Haiquan Cheng ; Yan Li ; Miao Yu ; Jizhao Zang ; Jian Wu ; Jintong Lin
Author_Institution :
State Key Lab. of Inf. Photonics & Opt. Commun., BUPT, Beijing, China
Abstract :
A pilot-symbols-aided phase unwrapping is proposed to do cycle-slip mitigations with fourth-power CPE. Experiments for 28 Gbaud SP-QPSK achieve 13 dB ROSNR at 1×10-3 with 1.56% overhead and 2 MHz combined linewidth without differential coding.
Keywords :
optical communication; phase estimation; quadrature phase shift keying; QPSK modulation format; ROSNR; SP-QPSK; carrier phase estimation; combined linewidth; differential coding; fourth-power CPE; frequency 2 MHz; pilot-symbols-aided cycle slip mitigation; pilot-symbols-aided phase unwrapping; Encoding; Laser noise; Optical noise; Phase noise; Phase shift keying; Signal to noise ratio; Synchronization;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2014
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-5575-2994-7
DOI :
10.1364/OFC.2014.M2I.2
