Effective gain measurements in chromium-doped forsteriteEffective gain cross section in tetravalent chromium-doped forsterite laser crystal was measured over the 1180-1330 nm spectral range. The experiment was performed using two collinear laser beams in a pump-and-probe arrangement. The peak-gain cross section from this measurement is estimated to be 1.9 x 10 to the -19th sq cm at 1215 nm, which is comparable to the value of about 2 x 10 to the -19th sq cm predicted by fluorescence linewidth and lifetime measurements. These results indicate that excited-state absorption is not a major loss mechanism in tetravalent chromium-doped forsterite.
Document ID
19910061605
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Petricevic, V. (City Coll. of the City Univ. of New York NY, United States)
Seas, A. (City Coll. of the City Univ. of New York NY, United States)
Alfano, R. R. (City College New York, United States)