Journal
INFRARED PHYSICS & TECHNOLOGY
Volume 104, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.infrared.2019.103155
Keywords
PtSe2; Passively Q-switched; Diode-pumped laser; 1.3 mu m
Categories
Funding
- Natural Science Foundation of Shandong Province, China [ZR2017LF024]
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We report a passively Q-switched Nd:YVO4 laser at 1341.5 nm by using few-layer Platinum diselenide (PtSe2) as the saturable absorber (SA). The nonlinear saturable absorption properties of the PtSe2 at 1.3 mu m were measured, showing a modulation depth of 7% and a saturation intensity of 25 GW/cm(2), respectively. The maximum Q-switched pulse average power was 209 mW under the absorbed pump power of 3.62 W. The shortest pulse duration and the highest pulse repetition rate was 775 ns and 103.5 kHz, respectively. The instability (output powers, rms) of the Q-switched pulse was measured to be about 0.63% for one hour. The results indicated that the PtSe2 have a good performance as a potential SA in the 1.3 mu m spectral range.
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