Ultrabroadband operation of a Cr4+: forsterite laser by use of a spatially dispersed resonator

摘要

Ultrabroadband (half-width of 88 nm) nanosecond Cr4+:forsterite oscillation was achieved simultaneously in the 1170-1340-nm range [1085 cm(-1)) by use of a spatially dispersed resonator with an intracavity prism pair. The laser demonstrates 4.8% real pump-to-laser efficiency. The oscillation build-up time for different spectral components is around 20 ns and varies by only 2.5 ns in the 1190-1260-nm region. which indicates that the ultrabroadband laser represents a complex multifrequency laser system with nonlinear spectral mode interaction. (C) 1998 Optical Society of America. [References: 18]