Abstract

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.

© 1998 Optical Society of America

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