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Opt Lett. 2011 Dec 15;36(24):4746-8. doi: 10.1364/OL.36.004746.

High-power 200 fs Kerr-lens mode-locked Yb:YAG thin-disk oscillator.

Optics letters

O Pronin, J Brons, C Grasse, V Pervak, G Boehm, M-C Amann, V L Kalashnikov, A Apolonski, F Krausz

Affiliations

  1. Max-Planck Institut für Quantenoptik, Garching, Germany. [email protected]

PMID: 22179870 DOI: 10.1364/OL.36.004746

Abstract

We demonstrate a power-scalable Kerr-lens mode-locked Yb:YAG thin-disk oscillator. It delivers 200 fs pulses at an average power of 17 W and a repetition rate of 40 MHz. At an increased (180 W) pump power level, the laser produces 270 fs 1.1 μJ pulses at an average power of 45 W (optical-to-optical efficiency of 25%). Semiconductor-saturable-absorber-mirror-assisted Kerr-lens mode locking (KLM) and pure KLM with a hard aperture show similar performance. To our knowledge, these are the shortest pulses achieved from a mode-locked Yb:YAG disk oscillator and this is the first demonstration of a Kerr-lens mode-locked thin-disk laser.

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