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Impact of fiber chromatic dispersion on the BER performance of an optical CDMA IM/DD transmission system

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3 Author(s)
S. P. Majumder ; Bangladesh Univ. of Eng. & Technol., Dhaka, Bangladesh ; A. Azhari ; F. M. Abbou

A theoretical analysis is presented to evaluate the impact of fiber chromatic dispersion on the bit-error-rate (BER) performance of a direct sequence optical code-division multiple-access (OCDMA) system with intensity modulation direct detection transmission link using sequence inverse keying optical correlator operating at 10 Gchip/s. The numerical results show that the system suffers a power penalty of 3.48 dB corresponding to chromatic dispersion index, γ=0.3 for seven-chip m-sequence, at a BER of 10-9. It is further noticed that the number of simultaneous users are limited to 14 for γ=0.1 and 10 for γ=0.3, for 31-chip gold sequence, at 6-dB power penalty.

Published in:

IEEE Photonics Technology Letters  (Volume:17 ,  Issue: 6 )