Cavity length dependence of differential quantum efficiency of GaInAsP/InP lasers

Publisher Website
Google Scholar
Abstract
The cavity length dependence of the differential quantum efficiency ηd of 1.58 μm wavelength GaInAsP/InP buried heterostructure lasers was investigated theoretically and experimentally. Theoretical calculations of ηd taking intervalence band absorption into account is in agreement with the measured results, in which ηd increases with decreasing the cavity length. The maximum value of ηd obtained was 53% for the cavity length of 100 μm in pulsed operation at room temperature.