Abstract

High transmitter power in optical communication systems causes fibers to depart from simple linear behavior. Various optical nonlinearities can lead to undesirable frequency conversion and signal loss or distortion.¹ We discuss two nonlinear processes which can ultimately limit transmitter powers. The first, carrier-induced phase noise, affects both single-wavelength and wavelength-division-multiplexed (WDM) angle-modulated systems. The second nonlinear process, stimulated Raman scattering (SRS), affects both angle-modulated and amplitude-modulated WDM systems.

© 1984 Optical Society of America