Influence of Noise on Gain-Switching of a Multimode Semiconductor Laser

Abstract

We examined the influence of noise on the pulse oscillations from a gain-switched multimode semiconductor laser using multimode semiconductor laser rate equations that include Langevin noise. We found that in the multimode oscillation, the Langevin noise suppressed the timing jitter and disturbed the temporal synchronization of the pulse oscillations. By numerically estimating the output energy in the THz time-domain spectroscopy, the degree of the temporal synchronization was estimated to be 95.5%.