DIRECT GAIN MEASUREMENTS OF AN ORGANIC DYE AMPLIFIER

Abstract

Amplifier gain measurements were made on the dye rhodamine 6G in ethanol. Gain was measured as a function of wavelength and time for a 1 × 10−4 M solution. The peak gain coefficient was measured to be 95 dB/m at a pump energy of 21.5 J. This same pump energy produced 55 mJ of laser output from a 3.8-cm-long cell in a mode diameter of 3.6 mm.