Title :
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
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;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2014 13th International Conference on
Conference_Location :
Suzhou
DOI :
10.1109/ICOCN.2014.6987075
