Munasinghe, DRSamarakkody, GSAlahakoon, SWeerasuriya, RWeeraddana, CEdussooriya, CUSAbeysooriya, RP2022-08-102022-08-102020-07D. R. Munasinghe, G. S. Samarakkody, S. Alahakoon and R. Weerasuriya, "Gain Performance of Single-Pump Phase Sensitive Amplifier in the Quadratic Gain Regime," 2020 Moratuwa Engineering Research Conference (MERCon), 2020, pp. 236-241, doi: 10.1109/MERCon50084.2020.9185352.http://dl.lib.uom.lk/handle/123/18587In optical communication systems, Phase Sensitive Amplifier (PSA) is well known for its superior noise performance in the sub-quantum limit. Therefore, PSAs are highly suitable for long haul transmission systems where amplification and regeneration is critical. In this paper, we analyze the gain performance of a single pump non-degenerate PSA operating in the quadratic gain regime. The variation of gain characteristics with pump power and fiber length has been discussed. It could be seen that for a 5km long fiber, increasing of pump power above 4W subjected to the increasing of amplifier gain while maintaining the relative phase at a stable constant value of 0.001 rad. Therefore, by fine tuning parameters like fiber nonlinearity, pump power and fiber length, a phase stabilized gain performance of the PSA could be achieved when it is operating in the quadratic gain regime.nonlinear fiber opticsfiber optic parametric amplifierphase sensitive amplifierfour wave mixingConference-Full-textEngineeringEngineering Research Unit, University of Moratuwa2020Moratuwa Engineering Research Conference 2020Moratuwa, Sri Lankapp. 236-241Proceedings of Moratuwa Engineering Research Conference 2020d.r.munasinghe1992@gmail.comgresh.maya112180@gmail.comsachinthanialahakoon@gmail.comruwanu@uom.lk10.1109/MERCon50084.2020.9185352