Title :
Phase Estimation for Coherent Optical OFDM
Author :
Yi, Xingwen ; Shieh, William ; Tang, Yan
Author_Institution :
Univ. of Melbourne, Vic.
fDate :
6/15/2007 12:00:00 AM
Abstract :
Phase estimation is one of the enabling functionalities in coherent optical orthogonal frequency-division-multiplexing (CO-OFDM) receivers. In this letter, we compare pilot-aided and data-aided phase estimation methods for a CO-OFDM transmission experiment at 8 Gb/s over 1000-km standard single-mode fiber without optical dispersion compensation. We also show that as few as five subcarriers are sufficient for pilot-aided phase estimation
Keywords :
frequency division multiplexing; light coherence; optical fibre communication; optical receivers; phase estimation; 1000 km; 8 Gbit/s; CO-OFDM transmission experiment; OFDM receivers; coherent optical OFDM; data-aided phase estimation; orthogonal frequency-division-multiplexing; phase estimation; pilot-aided phase estimation; standard single-mode fiber; subcarriers; Fiber nonlinear optics; Frequency estimation; Laser modes; Nonlinear optics; OFDM; Optical noise; Optical receivers; Phase estimation; Phase noise; Signal to noise ratio; Coherent communications; orthogonal frequency- division multiplexing (OFDM); phase estimation;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.897572
