Title :
Non-data-aided feedforward timing recovery for flexible transceivers employing PDM-MQAM modulations
Author :
Morsy-Osman, Mohamed ; Chagnon, Mathieu ; Zhuge, Qunbi ; Xian Xu ; Plant, David V.
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC, Canada
Abstract :
A blind feedforward timing estimator using 2 samples/symbol that is modulation format transparent is modified for PDM signals. When used for interpolator control, sampling frequency offsets up to 5000 ppm are corrected experimentally for PDM-QPSK, -16QAM and -64QAM.
Keywords :
optical fibre dispersion; optical transceivers; quadrature amplitude modulation; quadrature phase shift keying; synchronisation; PDM signals; PDM-16QAM; PDM-64QAM; PDM-MQAM modulations; PDM-QPSK; blind feedforward timing estimator; flexible transceivers; interpolator control; modulation format transparent; non-data-aided feedforward timing recovery; polarization mode dispersion; sampling frequency offsets; Bit error rate; Manganese; Optical noise; Phase shift keying; Signal to noise ratio; Timing;
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.W3B.4
