Broadband semiconductor saturable-absorber mirror for a self-starting mode-locked Cr:forsterite laser
- 15 September 1998
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 23 (18) , 1465-1467
- https://doi.org/10.1364/ol.23.001465
Abstract
We report a low-loss broadband semiconductor saturable-absorber mirror (SESAM) that uses gold film as the reflector. A semiconductor– double-layer stack enhances the reflectivity of the gold film. This low-loss SESAM was used in a mode-locked Cr:forsterite laser to produce self-starting 20-fs-scale laser pulses at . The structure can be applied to SESAM’s for other wavelengths.
Keywords
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