Title :
Performance analysis of 40 Gb/s RZ-DQPSK transmission system with alternate polarization formats
Author :
Li, Lujiao ; Qiao, Yaojun ; Ji, Yuefeng
Author_Institution :
Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In this paper, we show that, for the first time to the best of our knowledge, the alternate polarization of adjacent symbols in 40Gbit/s RZ-DQPSK transmission system can improve significantly system performance through suppression of intra-channel nonlinear effects. Simulation results show that about 4dB and 2dB increase of the non-linear threshold (NLT) and the maximum Q factor for all transmission distances greater than 1200km, respectively, by using alternate polarization (APol) RZ-DQPSK compared to the standard RZ-DQPSK.
Keywords :
interference suppression; polarisation; quadrature phase shift keying; wireless channels; RZ-DQPSK; alternate polarization; bit rate 40 Gbit/s; intrachannel nonlinear effect suppression; transmission system; Modulation; Optical amplifiers; Optical distortion; Optical fiber amplifiers; Optical fiber polarization; Optical polarization; Wavelength division multiplexing; DQPSK; alternate-polarization; inter-channel nonlinear;
Conference_Titel :
Broadband Network and Multimedia Technology (IC-BNMT), 2010 3rd IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6769-3
DOI :
10.1109/ICBNMT.2010.5705118
