Multiwavelength, sub-nanosecond Yb:YAG/Cr4+:YAG/YVO4 passively Q-switched Raman microchip laser

Multiwavelength, sub-nanosecond Yb:YAG/Cr4+:YAG/YVO4 passively Q-switched Raman microchip laser
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多波长、亚纳秒 Yb:YAG/Cr4 :YAG/YVO4 被动调Q拉曼微芯片激光器

DOI:
10.1109/jstqe.2018.2792845
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发表时间:
2018-01
影响因子:
4.9
通讯作者:
Dong Jun
Dong Jun
中科院分区:
工程技术2区
文献类型:
--
作者:
Wang Xiao-Lei;Wang Xiao-Jie;Dong Jun

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报道了Yb:YAG/Cr ~(4+):YAG/YVO ~ 4多波长亚纳秒被动调Q拉曼微片激光器(PQSRML)的实验结果。在不同泵浦功率下,分别获得了1123,1134,1260 nm和1079,1134,1157,1260 nm的多波长斯托克斯激光辐射。1.26 μm处的二阶斯托克斯激光随泵浦功率的增加而迅速增加,并成为激光发射光谱中的主要成分。在吸收泵浦功率为2.64 W时,获得了平均功率为135.4 mW的最大拉曼激光输出,脉冲宽度为440 ps,峰值功率为9.2 kW。重复频率达到20.3 kHz。在1 ~ 1.26 μm波长范围内的多波长、亚纳秒激光器,其频率间隔可根据泵浦功率调节,在太赫兹波产生、光动力学治疗和产生红光等方面具有潜在的应用前景。
We have demonstrated a multiwavelength, sub-nanosecond Yb:YAG/Cr4+:YAG/YVO4 passively Q-switched Raman microchip laser (PQSRML) emitting at 1-1.26 μm. Multiple wavelength Stokes laser radiations at 1123, 1134, 1260 nm and 1079, 1134, 1157, 1260 nm have been obtained at different pump power levels, respectively. The second-order Stokes laser at 1.26 μm increases rapidly with the pump power and becomes the dominant component in the laser emitting spectrum. The maximum average output power of 135.4 mW is achieved at the absorbed pump power of 2.64 W, meanwhile, the pulse duration is 440 ps, and the peak power is 9.2 kW for the Raman laser. The repetition rate of 20.3 kHz has been achieved. The multi-wavelength, sub-nanosecond lasers at 1-1.26 μm with adjustable frequency separation depending on pump power have potential applications in terahertz wave generation, photodynamic therapy, and generating red laser.
由被动 Q 开关 Yb:YAG 激光器泵浦的 YVO4 拉曼激光器
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