Multiple quantum wells for passive ultra short laser pulse generation

Details Multiple quantum wells for passive ultra short laser pulse generation Multiple quantum wells for passive ultra short laser pulse generation

2007-04-18

arxiv.org/abs/0704.2437v1

phys. stat. sol, (c) 2, No. 8, 3015-3018 (2005)

Physics

Optics

4 pages and 3 figures

Scientific paper

Solid state lasers are demanding independent control in the gain media and cavity loss to achieve ultra short laser pulses using passive mode-locking. Recently, laser mode-locking is achieved with a MBE structure with multiple quantum wells, designed to achieve two functions; Bragg mirror and changes in absorption to control the cavity dynamics. The use of an AlGaAs/AlAs Bragg mirror with a 15 nm GaAs saturable absorber used in a Cr:LiSAF tuneable laser proved to be effective to produce femtosecond pulses. The use of saturable absorbers thus far is a trial and error procedure that is changing due to the correlation with more predictive procedures.

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