Performance analysis of the dual-parallel polarization modulator based optical single-sideband modulator/frequency shifter

The performance of the dual-parallel polarization modulator based optical single-sideband modulator (PSSBM) or frequency shifter (FS) has been studied theoretically. There are various factors impacting the performance of PSSBM/FS, such as the state of polarization (SOP), imbalanced power ratio, and direct current (dc) bias control, and they all have been validated through the VPI software. Based on our simulation results, the desired high-quality SSB frequency shift can be achieved through the PSSBM/FS by applying the optimized parameters while only one dc bias control is required. The results show that PSSBM/FS has the advantages and potentiality to be a commercial product used in various scenarios. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)