Title :
Optical phase conjugation for intra-channel nonlinearity compensation in 40 Gbit/s CSRZ pseudo-linear systems
Author :
Chowdhury, A. ; Raybon, G. ; Essiambre, R.J.
Author_Institution :
Lucent Technol. Bell Labs., Murray Hill, NJ, USA
Abstract :
The compensation of intra-channel nonlinear effects in a CSRZ 40 Gbit/s 32×100 km system using an LiNbO3 optical phase conjugator in a re-entrant, recirculating loop architecture, is experimentally demonstrated. Two decades of improvement in the bit error rate at 3200 km with phase conjugation has been achieved. Also, the performance of CSRZ and RZ-DPSK modulation formats at 3200 km with and without optical phase conjugation is compared.
Keywords :
differential phase shift keying; error statistics; lithium compounds; optical fibre communication; optical modulation; optical phase conjugation; 3200 km; 40 Gbit/s; CSRZ modulation; DPSK modulation; LiNbO3; bit error rate; intra-channel nonlinearity compensation; optical phase conjugation; pseudolinear systems; recirculating loop architecture;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20046303
