Abstract

Wavelength conversion is an important function in future wavelength division multiplexing (WDM) systems and lightwave networks. Wavelengths can be converted by using semiconductor lasers¹ and semiconductor optical amplifiers.² However, signal properties degrade after passing through optical filters because of chirping.³ Here, we discuss the effects of wavelength chirping in semiconductor laser wavelength converters on optical fiber transmissions and show that lowering the linewidth enhancement factor (α-parameter) is effective to improve transmission properties. We also discuss how the properties change when using dispersion shifted fibers.

© 1995 IEEE