Performance evaluation of N × 80 Gb/s DWDM optical system over SSMF for CSRZ-DPSK and RZ-DPSK signals with optimized alternate polarization

被引：3
|
作者：
Department of Electronics and Communication Engineering, Ambedkar Institute of Advanced Communication Technologies and Research, Delhi [1 ]
110031, India
不详 [2 ]
不详 [3 ]
151001, India
机构：
来源：
J Opt Commun | / 2卷 / 155-159期
关键词：
Phase shift keying - Dense wavelength division multiplexing - Optical communication - Polarization;
D O I：
10.1515/joc-2014-0052
中图分类号：
学科分类号：
摘要：
In this paper, the performance of N×80 Gb/s Dense Wavelength Division Multiplexed (DWDM) optical system is evaluated. Improved performance has been reported for CSRZ-DPSK signal with optimized alternate polarization (al-P), over 3120 km of SSMF using 80-km amplified spans in comparison to al-P RZ-DPSK. Investigations were conducted at 0.8 nm and 0.64 nm channel spacing. The results show that the CSRZ-DPSK signal with optimized al-P offers excellent performance for lower line width lasers. Orthogonal polarization and narrow spectrum of CSRZ-DPSK offer 5 dB improvement in quality factor for high-input power per channel with consistent performance over wider line widths. © 2015 by De Gruyter.
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