Passively mode-locked quasi-continuously pumped Yb:YAG laser

Petr Szotkowski; Václav Kubeček

doi:10.1117/12.2008193

18 December 2012 Passively mode-locked quasi-continuously pumped Yb:YAG laser

Petr Szotkowski, Václav Kubeček

Proceedings Volume 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 869715 (2012) https://doi.org/10.1117/12.2008193
Event: 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2012, Ostravice, Czech Republic

Abstract

In this work we have investigated diode pumped passively mode-locked Yb:YAG laser operation in quasi-continuous mode. The laser was end-pumped by 25W laser diode operating in pulse mode, with 2ms long pulse and repetition rate of 10Hz. The laser system was designed with X-shaped resonator. Several semiconductor saturable absorber mirrors (SESAMs) were tested. Temporal development of a pulse train in a transient regime before the stabilization of the pulse amplitude and duration was investigated. After the transient period at the beginning of generation of about 25μs, the amplitude and also duration of mode-locked pulses is stabilized. Without intracavity dispersion compensation pulses with duration of 1,37ps (assuming sech² shaped pulse) were generated with the spectral width of 1,61nm on the wavelength of 1,03μm and pulse energy of 4,5nJ. Autocorrelator trace and oscillogram confirm good reproducibility and stability of the laser operation.

Citation Download Citation

Petr Szotkowski and Václav Kubeček "Passively mode-locked quasi-continuously pumped Yb:YAG laser", Proc. SPIE 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 869715 (18 December 2012); https://doi.org/10.1117/12.2008193

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