Continuous-wave and Q-switched microchip laser performance of Yb:Y3Sc2Al3O12 crystals
Continuous-wave and Q-switched microchip laser performance of Yb:Y3Sc2Al3O12 crystals
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DOI：
10.1364/oe.16.005241
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发表时间：
2008-04-14
期刊：
影响因子：
3.8
通讯作者：
Kaminskii, Alexander A.
中科院分区：
文献类型：
--
作者：
Dong, Jun;Ueda, Ken-ichi;Kaminskii, Alexander A.
研究了Yb：Y3 Sc2 Al 3 O 12晶体的光学性质，并与Yb：YAG晶体的光学性质进行了比较。Yb：Y_3Sc_2Al_3O_（12）的宽吸收和发射光谱表明，该晶体非常适合于激光二极管泵浦和产生超快激光脉冲。本文首次报道了以Cr ~（4+）：YAG晶体为可饱和吸收体的激光二极管泵浦Yb：Y_3Sc_2Al_3O_（12）连续被动调Q激光器。连续波输出功率为1.12 W左右的1032 nm（多纵模）的光-光效率为30%。在重复频率超过12.7kHz的情况下，测量了脉冲能量超过31 μ J、脉宽为2.5ns的激光脉冲，获得了超过12 kW的相应峰值功率。在Yb：Y_3Sc_2Al_2O_（12）微片被动调Q激光器中也观察到了Cr ~（4+）：YAG薄板作为腔内标准具的纵模选择效应。(C)2008年美国光学学会。
Optical properties of Yb:Y3Sc2Al3O12 crystal were investigated and compared with those from Yb:YAG crystals. The broad absorption and emission spectra of Yb:Y3Sc2Al3O12 show that this crystal is very suitable for laser-diode pumping and ultrafast laser pulse generation. Laser-diode pumped continuous-wave and passively Q-switched Yb:Y3Sc2Al3O12 lasers with Cr4+: YAG crystals as saturable absorber have been demonstrated for the first time. Continuous-wave output power of 1.12 W around 1032 nm ( multi-longitudinal modes) was measured with an optical-to-optical efficiency of 30%. Laser pulses with pulse energy of over 31 mu J and pulse width of 2.5 ns were measured at repetition rate of over 12.7 kHz; a corresponding peak power of over 12 kW was obtained. The longitudinal mode selection by a thin plate of Cr4+: YAG as an intracavity etalon was also observed in passively Q-switched Yb:Y3Sc2Al2O12 microchip lasers. (C) 2008 Optical Society of America.