Abstract

We have been studying LiSAF laser by pumping with a pulsed dye laser in the absorption bands around 640 nm and 440 nm in an effort to understand the pumping mechanism in flashlamp-pumped tunable LiSAF lasers, and to simulate the high power diode pmpued LiSAF laser. Also, we have measured by a pump-probe experiment the cross section for excited state absorption (ESA) in LiCAF and LiSAF in the visible range. The ESA cross section at 520 nm was measured to be 3×l0^-20 cm² for Cr³⁺:LiSrAlF₆ and 1.2×l0^-20 cm² for Cr³⁺:LiCaAlF₆

© 1992 Optical Society of America