%0 Journal Article %T Phase-Induced Intensity Noise Reduction with Improved Group Velocity Dispersion Tolerance in SAC-OCDMA Systems %A Hamza M. R. Al-Khafaji %A S. A. Aljunid %A Angela Amphawan %A Hilal A. Fadhil %J International Journal of Engineering and Technology %D 2013 %I Engg Journals Publications %X The demand for efficient optical communication systems has fuelled considerable research in developing techniques for eradicating phase-induced intensity noise (PIIN) in spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA). This paper investigates the use of modified-AND subtraction detection technique to mitigate PIIN in SAC-OCDMA systems. The simulation results show that the modified-AND subtraction detection demonstrates better performance over the conventional AND detection approach. Furthermore, we have found that, from a transmission length of 40 km onwards, group velocity dispersion (GVD) degrades SAC-OCDMA system performance apparently. Dispersion compensating fiber (DCF) is used to lessen the influence of GVD caused by single mode fiber (SMF). %K optical code-division multiple-access (OCDMA) %K spectral-amplitude coding (SAC) %K modified-AND subtraction detection %K phase-induced intensity noise (PIIN) %K group velocity dispersion (GVD). %U http://www.enggjournals.com/ijet/docs/IJET13-05-01-034.pdf