Relaxation oscillations in long-pulsed random lasers

van der Molen, Karen L.; Mosk, Allard P.; Lagendijk, Ad

Relaxation oscillations in long-pulsed random lasers

Authors

van der Molen, Karen L.

Mosk, Allard P.

Lagendijk, Ad

Description

We have measured the evolution of the light intensity of a random laser during a nanosecond pump pulse. Relaxation oscillations in a titania random laser were observed in the time trace of the total emitted intensity. We compare our experimental results with a simple model, based on the four-level rate equations for a single mode laser.
4 pages, 3 figures