Title :
Analytical evaluation of the effect of self-phase modulation on coherent optical CPFSK system
Author :
Majumder, S.P. ; Abbou, E.M. ; Sarker, B.C.
Author_Institution :
Fac. of Eng., Multimedia Univ., Selangor, Malaysia
Abstract :
An analytical approach is presented to evaluate the effects of self-phase modulation (SPM) on the bit error rate performance of an optical heterodyne CPFSK transmission system. The signal phase distortion induced by SPM at the output of the fiber is determined by using the beam propagation method (BPM). The bit error rate performance is evaluated by using Gauss quadrature rule using the moments of the random phase fluctuations at the receiver output. The results show that the performance of a heterodyne CPFSK system is highly degraded due to the effect of fiber dispersion and self-phase modulation and the power penalty increases with the increase in input power level. Compared to direct detection CPFSK, the effect of SPM is found to be more pronounced in case of heterodyne receiver
Keywords :
continuous phase modulation; error statistics; frequency shift keying; heterodyne detection; optical fibre dispersion; optical receivers; optical signal detection; self-phase modulation; BER performance; Gauss quadrature rule; SPM; beam propagation method; bit error rate performance; coherent optical CPFSK system; direct detection CPFSK; fiber dispersion; fiber output; heterodyne CPFSK system; heterodyne receiver; input power level; optical heterodyne CPFSK transmission system; power penalty; random phase fluctuations; receiver output; self phase modulation; self-phase modulation; signal phase distortion; Bit error rate; Fiber nonlinear optics; Nonlinear optics; Optical distortion; Optical mixing; Optical modulation; Optical receivers; Performance analysis; Phase distortion; Scanning probe microscopy;
Conference_Titel :
MILCOM 2000. 21st Century Military Communications Conference Proceedings
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-6521-6
DOI :
10.1109/MILCOM.2000.904060
