Direct modulation response of a 1.55 µm InGaAsp ridge waveguide laser

Abstract

The high frequency direct modulation response and the -3 dB bandwidth of a 1.55 µm InGaAsP ridge waveguide laser are investigated by using a mathematical model based on single-mode rate equations including Auger recombination, nonradiative recombination and gain compression parameters. The effect of each laser parameter on the laser modulation response and the -3 dB bandwidth are determined. It is found that among all parameters the gain compression and Auger recombination are the most effective parameters affecting the direct modulation response and the -3 dB bandwidth. © 2020 Elsevier B.V., All rights reserved.