A quantum-dot-based saturable absorber has been demonstrated to initiate the generation of femtosecond pulses from a passively mode-locked solid-state laser. Control and tuning of the pulse duration from 58 ps to 158 fs was achieved. The 158 fs transform-limited pulses at 1280 nm are the shortest pulses that were produced from the Cr:forsterite laser passively mode locked by an InAs/InGaAs quantum-dot semiconductor saturable absorber mirror.
© 2006 Optical Society of America
Lasers and Laser Optics
Original Manuscript: December 12, 2005
Revised Manuscript: February 22, 2006
Manuscript Accepted: February 22, 2006
A. McWilliam, A. A. Lagatsky, C. T. A. Brown, W. Sibbett, A. E. Zhukov, V. M. Ustinov, A. P. Vasil'ev, and E. U. Rafailov, "Quantum-dot-based saturable absorber for femtosecond mode-locked operation of a solid-state laser," Opt. Lett. 31, 1444-1446 (2006)