Systematic study on thermal lens effect and passive Q-switching of diode-pumped 1.34-μm Nd:Gd x Y1 − x VO4 laser with different output couplers
Tóm tắt
The thermal lens effect and passively Q-switched laser performance of mixed Nd:Gd
x
Y1 − x
VO4 crystals at 1.34 μm with 5 and 10% as the output transmissions have been systematically studied. Compared with the single vanadate crystal Nd:GdVO4, the mixed Nd:Gd
x
Y1 − x
VO4 crystals can enhance passively Q-switched laser characteristics due to their smaller emission cross sections, although they have stronger thermal lens effects which result in decreasing the average output power. The largest peak power and pulse energy, obtained for Nd:Gd0.63Y0.37VO4, were 2.9 and 1.7 times as those of Nd:GdVO4 under the uniform conditions.
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