Crosstalk caused by fiber nonlinear polarization rotation in DP-QPSK systems

Author

Lanlan Liu ; Chongqing Wu ; Yongliang Li ; Shuai Yang

Author_Institution

Key Lab. of Educ. Minist. on Luminescence & Opt. Inf. Technol., Beijing Jiaotong Univ., Beijing, China

fYear

2014

fDate

9-10 Nov. 2014

Firstpage

1

Lastpage

4

Abstract

The crosstalk caused by fiber nonlinear polarization rotation in Dual-Polarization QPSK (DP-QPSK) system is analyzed, and 100Gbps system is simulated. The results show that the one channel will produce a crosstalk and a ghosting in constellation to another channel, and the rotated angle of crosstalk constellation is proportional to the intensity of influencing signal. When the total input power is less than 4mW, the crosstalk effect can be neglected, otherwise when the total power is more than 20mW, the crosstalk is very obvious. In addition, the crosstalk can´t be monitored according to the output eye diagram and SOP in Poincare Sphere in trunk fiber, that make it difficult for the monitoring of optical trunk link.

Keywords

optical crosstalk; optical fibre networks; optical fibre polarisation; optical modulation; quadrature phase shift keying; DP-QPSK systems; Poincare Sphere; angle rotation; bit rate 100 Gbit/s; crosstalk constellation; fiber nonlinear polarization rotation; optical trunk link; signal influence intensity; trunk fiber; Constellation diagram; Crosstalk; Optical fiber communication; Optical fiber dispersion; Optical fiber polarization; Phase shift keying; Crosstalk; Fiber nonlinear polarization rotation; Polarization Multiplexing; QPSK format;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communications and Networks (ICOCN), 2014 13th International Conference on

Conference_Location

Suzhou

Type

conf

DOI

10.1109/ICOCN.2014.6987075

Filename

6987075