Ultrabroadband (half-width of 88 nm) nanosecond Cr<sup>4+</sup>:forsterite oscillation was achieved simultaneously in the 1170–1340-nm range (1085 cm<sup>−1</sup>) 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
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3410) Lasers and laser optics : Laser resonators
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
Valerii V. Ter-Mikirtychev, Iain T. McKinnie, and Donald M. Warrington, "Ultrabroadband Operation of a Cr4+: Forsterite Laser by Use of a Spatially Dispersed Resonator," Appl. Opt. 37, 2390-2393 (1998)