Passively Q-switched Tm:BaY2F8 lasers

被引：1
|
作者：
Yu, Haohai [1 ]
Veronesi, Stefano
Mateos, Xavier
Petrov, Valentin [1 ]
Griebner, Uwe [1 ]
Parisi, Daniela
Tonelli, Mauro
机构：
[1] Max Born Inst Nonlinear Opt & Ultrafast Spect, D-12489 Berlin, Germany
来源：
PACIFIC RIM LASER DAMAGE 2013: OPTICAL MATERIALS FOR HIGH POWER LASERS | 2013年 / 8786卷
关键词：
thulium lasers; Q-switching; Cr-doped ZnS; barium yttrium fluoride; 1.9; MU-M; TM-BAY2F8; LASER; EFFICIENT;
D O I：
10.1117/12.2020417
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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 similar to 1920 nm for an absorbed pump power of 3.06 W. In the PQS regime, maximum pulse energy (720 mu J) 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 similar to 40 ns and a repetition rate of 50 Hz.
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页数：8
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