Comparison of cw laser performance of Nd:KGW, Nd:YAG, Nd:BEL, and Nd:YVO4 under laser diode pumping
Comparison of cw laser performance of Nd:KGW, Nd:YAG, Nd:BEL, and Nd:YVO4 under laser diode pumping
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DOI：
10.1007/s003400050467
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发表时间：
1998-07
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影响因子：
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通讯作者：
A. A. Demidovich-A.;A. P. Shkadarevich;M. Danailov;P. Apai;T. Gasmi;V. P. Gribkovskii;A. Kuzmin;G. I. Ryabtsev;L. E. Batay
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文献类型：
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作者：
A. A. Demidovich-A.;A. P. Shkadarevich;M. Danailov;P. Apai;T. Gasmi;V. P. Gribkovskii;A. Kuzmin;G. I. Ryabtsev;L. E. Batay
低功率激光二极管端面泵浦下的 4 个晶体。研究了这些二极管泵浦固体激光器的输出功率对泵浦功率和泵浦波长的依赖性。我们的测量中使用的 Nd:KGW 样品的高 Nd3+ 浓度以及 Nd:KGW 中的上转换和激发态吸收过程导致实验观察到的激光输出功率对泵浦波长的依赖性降低。在泵浦功率高达 270 mW 时，Nd:KGW 激光器的斜率效率达到 ηsl≈46%。 Nd:KGW 微芯片激光器的斜率效率为 ηsl≈50%。测量了泵浦功率高达 3 W 时 Nd:KGW 中的热透镜效应。
4crystals under low-power laser diode end-pumping. Output power dependencies on the pump power and the pump wavelength of these diode-pumped solid state lasers were investigated. The high Nd3+concentration of the Nd:KGW samples used in our measurements as well as up-conversion and exited-state absorption processes in Nd:KGW cause the reduced laser output power dependence on the pump wavelength which was experimentally observed. At pump levels up to 270 mW a slope efficiency of ηsl≈46% was reached for the Nd:KGW laser. Nd:KGW microchip laser operation with a slope efficiency of ηsl≈50% was demonstrated. Thermal lensing in Nd:KGW at pump powers up to 3 W was measured.