Title :
Impact of amplifier beat and nonlinear phase noises on coherent optical communication system
Author :
Hongbo Lu ; Shaoliang Zhang ; Changyuan Yu ; Pooi Yuen Kam
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
The performance of long-haul coherent optical transmission systems is partly limited by following factors: one is the beat noise between the amplified spontaneous emission (ASE) noises and local oscillator; and another one is the nonlinear phase noise caused by the interaction between a signal and ASE noise under Kerr effects. We analytically investigate the impact of these two factors on coherent binary phase-shift-keying and quadrature phase-shift-keying systems. The impact of laser phase noise is also addressed. Under a fixed total length and span length, optimal received power is found.
Keywords :
amplifiers; optical Kerr effect; optical communication; phase noise; quadrature phase shift keying; ASE noise; Kerr effects; amplified spontaneous emission noise; amplifier beat noise; coherent binary phase-shift-keying systems; coherent optical communication system; laser phase noise; local oscillator; long-haul coherent optical transmission systems; nonlinear phase noises; quadrature phase-shift-keying systems; ASE noise; Coherent optical communication; inline amplifier; nonlinear phase noise;
Conference_Titel :
Optical Communications and Networks (ICOCN 2010), 9th International Conference on
Conference_Location :
Nanjing
DOI :
10.1049/cp.2010.1209
