Passively Q-switched Tm:BaY2F8 lasers

Haohai Yu; Stefano Veronesi; Xavier Mateos; Valentin Petrov; Uwe Griebner; Daniela Parisi; Mauro Tonelli

doi:10.1117/12.2020417

9 July 2013 Passively Q-switched Tm:BaY₂F8 lasers

Haohai Yu, Stefano Veronesi, Xavier Mateos, Valentin Petrov, Uwe Griebner, Daniela Parisi, Mauro Tonelli

Proceedings Volume 8786, Pacific Rim Laser Damage 2013: Optical Materials for High Power Lasers; 878616 (2013) https://doi.org/10.1117/12.2020417
Event: SPIE/SIOM Pacific Rim Laser Damage: Optical Materials for High-Power Lasers, 2013, Shanghai, China

Abstract

We demonstrate passive Q-switching (PQS) of the Tm-doped BaY₂F₈ (Tm:BYF) laser for the first time. The Tm:BYF laser is diode-pumped using an L-shaped hemispherical resonator. In the cw regime, the maximum output power with an 18% Tm-doped BYF crystal reached 1.12 W at ~1920 nm for an absorbed pump power of 3.06 W. In the PQS regime, maximum pulse energy (720 μJ) and peak power (17.1 kW) were obtained with an 8% Tm-doped BYF crystal and a Cr:ZnS saturable absorber with 92% low-signal transmission, again near 1920 nm, for a pulse width of ~40 ns and a repetition rate of 50 Hz.

Citation Download Citation

Haohai Yu, Stefano Veronesi, Xavier Mateos, Valentin Petrov, Uwe Griebner, Daniela Parisi, and Mauro Tonelli "Passively Q-switched Tm:BaY₂F8 lasers", Proc. SPIE 8786, Pacific Rim Laser Damage 2013: Optical Materials for High Power Lasers, 878616 (9 July 2013); https://doi.org/10.1117/12.2020417

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