Intensity noise in 1.5µm GaInAs quantum well buried heterostructure lasers

Abstract

Intensity noise has been measured for the first time in GaInAs quantum well lasers. The noises in quantum well and bulk lasers are found to be comparable when the resonance frequencies and lengths are made equal; consequently, for a given emitted optical power quantum well lasers have wider bandwidths and lower noise, as a result of their higher resonance frequencies.