Broadband semiconductor saturable-absorber mirror for a self-starting mode-locked Cr:forsterite laser.
We report a low-loss broadband semiconductor saturable-absorber mirror (SESAM) that uses gold film as the reflector. A semiconductor- SiO(2) 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 1.3 microm . The structure can be applied to SESAM's for other wavelengths.
Zhang
Z
Z
Torizuka
K
K
Itatani
T
T
Kobayashi
K
K
Sugaya
T
T
Nakagawa
T
T
Takahashi
H
H