Abstract

Tunable-wavelength filters based on distributed-feedback (DFB) laser amplifiers are very promising devices not only for densely spaced wavelength-division-multiplexed transmission systems but also for optical-fiber memories in optical ATM systems. More and more, it is necessary to operate them at very high bit rates at which optical signals necessarily exhibit spreads in their power spectra. Thus one question is what happens when those signals are wavelength-filtered. The aim of the paper is to answer that question since such results have not yet been reported to our knowledge.

© 1993 Optical Society of America