Abstract
Infrared and visible absorption and fluorescence spectra of the novel laser crystal Yb:Ca4YB3O10 (Yb:YCOB) were recorded and spectral parameters were calculated. Infrared laser output powers of 446 mW were realized from a 1.86 mm thick Yb:YCOB crystal pumped by a 1.6 W fiber-coupled 976 nm diode, with slope efficiency of 73% and threshold of 55 mW. Self-frequency-doubled green light was also observed.
© 1999 Optical Society of America
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