Flashlamp pumped oscillator–amplifier Nd:YAG system mode-locked using multiple quantum well saturable absorber

Vaclav Kubecek; Helena Jelinkova; Andrej Dombrovsky; Jean-Claude Diels; Andreas Stintz

doi:10.1117/12.545613

1 September 2004 Flashlamp pumped oscillator-amplifier Nd:YAG system mode-locked using multiple quantum well saturable absorber

Vaclav Kubecek, Helena Jelinkova, Andrej Dombrovsky, Jean-Claude Diels, Andreas Stintz

Author Affiliations +

Proceedings Volume 5460, Solid State Lasers and Amplifiers; (2004) https://doi.org/10.1117/12.545613
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

We report on flashlamp pumped oscillator - three amplifiers Nd:YAG picosecond laser system in which the liquid saturable dye used for passive mode locking is replaced by semiconductor saturable absorber with multiple quantum well (MQW) structure. This element placed at Brewster angle inside a laser resonator had 100 layers of absorber and therefore it has high nonlinearity and is suitable for high power Q-switched and mode locked operation. The short pulse train from oscillator contained only 5-6 pulses with total energy of 3 mJ in single transversal mode, the pulse duration was 80 ps. After amplification, the maximum energy of the pulse train was 180 mJ. In the regime of the amplification of a single selected pulse the energy on the output of the third amplifier was 50 mJ. Operation of the oscillator in active-passive regime of mode locking using an additional acousto-optic mode-locker leads to improvement of reproducibility and stability of output parameters.

Citation Download Citation

Vaclav Kubecek, Helena Jelinkova, Andrej Dombrovsky, Jean-Claude Diels, and Andreas Stintz "Flashlamp pumped oscillator-amplifier Nd:YAG system mode-locked using multiple quantum well saturable absorber", Proc. SPIE 5460, Solid State Lasers and Amplifiers, (1 September 2004); https://doi.org/10.1117/12.545613

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