High Speed Dynamics of GaAsSb Vertical Cavity Lasers
01 April 2002
The intensity noise spectrum is measured for Antimonide based 1.3 micron vertical cavity surface emitting lasers. Analysis of the noise spectra indicate a modulation bandwidth of 5.7 GHz with an intrinsic maximum frequency response that exceeds 28 GHz. Further investigation of the lasing characteristics and high-speed dynamics reveal evidence for the formation of a thermal lens that enables enhanced room temperature, cw performance.