9 July 2013 Passively Q-switched Tm:BaY2F8 lasers
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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
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.
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Haohai Yu, Haohai Yu, Stefano Veronesi, Stefano Veronesi, Xavier Mateos, Xavier Mateos, Valentin Petrov, Valentin Petrov, Uwe Griebner, Uwe Griebner, Daniela Parisi, Daniela Parisi, Mauro Tonelli, 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); doi: 10.1117/12.2020417; https://doi.org/10.1117/12.2020417

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