New, Efficient Optically Pumped Solid State Lasers

Authors: Michael Bass; Milton Birnbaum; UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES CENTER FOR LASER STUDIES

Abstract:

Several new results were reported. Of particular note was the demonstration of efficient laser operation of high dopan density Er: YAG at 2.94 um. This laser has valuable medical and other applications. Our work on radiation trapping in solids, while yielding interesting and useful spectroscopic results has thus far not fulfilled its earlier promise of potential utility in improving the efficiency of optically pumped solid state lasers. A paper detailing additional results of ruby fluorescence in the presence of strong R-line trapping is in preparation. A number of new studies were begun which have already yielded fruitful results. This is our work on the diode pumping of solid state laser. This field promises to be of considerable importance in the development of compact and efficient solid state lasers. The Optical Multichannel Analyzer has been completed and is now operational. It is expected to play an important role in our current investigations involving Er and Ho doped crystal lasers. Work has begun on research of the high dopant density Ho: YAG laser. Keywords: Fluorescence; Multichannel Analyzers; Europium; Holmium; YAG Lasers.

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APPROVED FOR PUBLIC RELEASE