ALL-OPTICAL UP-CONVERTER FOR A WDM-BASED RADIO OVER FIBER SYSTEM

摘要

An all-optical up-converter for a WDM(Wavelength Division Multiplexing) based radio over fiber system is provided to obtain a stable transmission property in a linking with an existing optical communication network by a wide wavelength range, a wide intention free dynamic range, and a stable phase noise property. In an all-optical up-converter(130) for a WDM based radio over fiber system, an optical modulator(132) generates an optical LO(Local Oscillator) signal having a wanted frequency range by taking an RF(Radio Frequency) signal of an RF signal source on an optical signal source of multi wavelength for a wavelength division multiplexing. When an optical data signal is inputted, an electro absorption modulator(136) generates the wavelength-transformed optical LO signal by taking the optical data signal on the generated optical LO signal through a wavelength transformation using a cross absorption modulating principle.