Title :
Effect of cross phase modulation (XPM) on the bit error rate performance of an optical CDMA (OCDMA) system
Author :
Ferdous, Shahriar ; Zaman, Mohammed Shahriar ; Imran, Khandaker Fahim ; Majumder, S.P.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bangladesh Univ. of Eng. & Technol., Dhaka
Abstract :
An analytical investigation is carried out to evaluate the impact of cross phase modulation due to non-linear Kerr effect in a single mode fiber on the transmission performance of an optical CDMA system. Expression for the intensity modulation (IM) induced by PM-IM (phase modulation-intensity modulation) conversion due to GVD (group velocity dispersion) is derived and the mean and variance of MAI (multiple access interference) at the output of SIK (sequence inversed keyed) correlator receiver is determined. Performance results are evaluated in terms of BER (bit error rate) performances of OCDMA system with variable probe power, fiber length, number of users, bit rate and code length considering 31 chip and 127 chip m-sequence codes. Results show that the system performance deteriorates significantly due to the IM caused by GVD and PM.
Keywords :
code division multiple access; error statistics; interference (signal); optical Kerr effect; phase modulation; XPM; bit error rate; cross phase modulation; group velocity dispersion; multiple access interference; nonlinear Kerr effect; optical CDMA system; phase modulation-intensity modulation; sequence inversed keyed correlator receiver; single mode fiber; Bit error rate; Fiber nonlinear optics; Intensity modulation; Multiaccess communication; Multiple access interference; Nonlinear optics; Optical modulation; Optical receivers; Performance analysis; Phase modulation;
Conference_Titel :
Electrical and Computer Engineering, 2008. ICECE 2008. International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4244-2014-8
Electronic_ISBN :
978-1-4244-2015-5
DOI :
10.1109/ICECE.2008.4769208
