Zhao Zanshan1, Li Peili1, Pan Tingting1, et al. SOA-based all optical ultra-wideband pulse amplitude modulation. [J]. (6):22-24(2011) DOI: 10.13756/j.gtxyj.2011.06.003.
SOA-based all optical ultra-wideband pulse amplitude modulation
On the basis of the Cross-Gain Modulation(XGM) effects in Semiconductor Optical Amplifiers(SOA)
we propose a scheme for realizing all optical Ultra-Wideband(UWB) Pulse Amplitude Modulation(PAM).This scheme is simple in structure and fast in modulation as only one external optical source and one SOA are needed.We simulate the scheme using the Optisystem and analyze the impacts of the optical source power and wavelengths and the injected current to SOA and other system parameters on the PAM signal performances.