Title :
Phase-noise tolerance of optical 16-QAM signals demodulated with decision-directed carrier-phase estimation
Author :
Mori, Yojiro ; Zhang, Chao ; Igarashi, Koji ; Katoh, Kazuhiro ; Kikuchi, Kazuro
Author_Institution :
Dept. of Electron. Eng., Univ. of Tokyo, Tokyo
Abstract :
Phase-noise tolerance of 10-Gsymbol/s 16-QAM signals is investigated both theoretically and experimentally. Optimizing the decision-directed phase-locked loop for carrier-phase estimation, we can obtain acceptable BER performance when the laser linewidth is in the 100-kHz range.
Keywords :
optical communication; phase locked loops; quadrature amplitude modulation; decision-directed carrier-phase estimation; decision-directed phase-locked loop; laser linewidth; optical 16-QAM signals; phase noise tolerance; Amplitude estimation; Bit error rate; Laser noise; Laser theory; Optical receivers; Optical signal processing; Optical transmitters; Phase estimation; Phase locked loops; Phase noise; (060.1660) Coherent communications; (060.5060) Phase modulation;
Conference_Titel :
Optical Fiber Communication - incudes post deadline papers, 2009. OFC 2009. Conference on
Print_ISBN :
978-1-4244-2606-5
Electronic_ISBN :
978-1-55752-865-0
