PERFORMANCE ANALYSIS OF WAVELENGTH DIVISION-MULTIPLEXING AND SUBCARRIER-MULTIPLEXING (WDM-SCM) TRANSMISSION USING FIBER BRILLOUIN AMPLIFICATION

Abstract

A subcarrier multiplexing based optical wavelength division multiplexing system with fibre Brillouin amplification (FBA) is analysed. In the optical domain, a pump laser is tuned to amplify the corresponding optical carrier by FBA for the desired group of SCM signals. In the electrical domain, a microwave tuner is used to select the desired channel in the selected SCM group. This system has the benefits of eliminating the need for polarisation control, the ability to cancel phase noise due to the 'squaring' photodetection process of the selected optical carrier together with its SCM channels, and enhancement of optical receiver sensitivity by amplification of the carrier. Comparisons with other systems are also presented.