Abstract

Operation of an efficient room temperature, flashlamp-pumped Cr;Tm:Y3A15O12 (YAG) laser at 2.014 μm is reported with a 43 J threshold, 2 J output energy, and 4.5% slope efficiency. Room temperature, flashlamp-pumped laser action is also demonstrated for the first time in a similar host, Y3Sc2Ga3O12 (YSGG) codoped with Cr and Tm. The observed laser wavelength in Cr;Tm:YSGG is measured as 2.010 μm.

© 1990 Optical Society of America

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