Abstract

The bandwidth of the output spectrum of a homogeneously broadened laser should narrow down during the buildp to the steady state due to the gain competition effect among the longitudinal modes. It is interesting to investigate the temporal evolution of this process. Concurrently, the average output power of the laser should also undergo relaxation oscillation and approach the steady state. It is also of interests to compare the time constants for the buildip of the average output power and the corresponding spectrum of this class of lasers. Using the Ti: Sapphire laser as a model system, we report for the first time in this work experimental results on the buildup dynamics of the spectrum and average output power in such a homogeneously broadened continuous wave (cw) laser.

© 1992 IQEC