基于偏振复用和RSOA的WDM-RoF-PON系统设计

Based on polarization multiplexing and re-modulation characteristics of RSOA（Reflective Semiconductor Optical Amplifier）,we designed a WDM-RoF-PON（Wavelength Division Multiplexing Passive Optical Network）system which can achieve different types of signals' transmission combining with Radio-over-Fiber(RoF) techniques. In the central station, wire and wireless signals were modulated into two orthogonal polarized optical carriers, then coupled into the same optical wavelength transmitting in the fiber. In the base station, after separating the orthogonal polarization signals, on one hand four octave millimeter-wave signal and wire signal were detected, on the other hand, carrier reuse was achieved by RSOA. We made simulation analysis and theoretical verification for the system with Optisystem software, simulated the spectrum of modulated signals and the eye diagram of received signals, and analyzed the relationship between transmission signals' BER and received optical power. The results show that this transmission system is in good performance.