Abstract

Measurement of the gain regions and characterization of a one-stage Rhodamine 6 G pulsed dye laser were performed using amplitude changes in the acoustic signals generated in an amplifier media by a pulsed-pump laser, when the oscillator laser beam is blocked or not. The idea of this method has previously been applied to full characterization and alignment of pulsed laser cavities and is based on the competition for the population of excited molecules, between laser emission and radiationless processes that provide the acoustic signals.^1,2

© 1996 Optical Society of America