Yb:Y3Al5O12 Laser for Self-Mixing Laser Metrology with Enhanced Optical Sensitivity
Yb:Y3Al5O12 Laser for Self-Mixing Laser Metrology with Enhanced Optical Sensitivity
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DOI：
10.1143/jjap.48.070212
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发表时间：
2009-07
影响因子：
1.5
通讯作者：
T. Ohtomo;K. Otsuka
中科院分区：
文献类型：
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作者：
T. Ohtomo;K. Otsuka
我们已经展示了使用激光二极管泵浦薄片 Yb:Y3Al5O12 (Yb:YAG) 陶瓷激光器进行自混合激光多普勒测量，其光学灵敏度比掺钕固态激光器（例如 Nd:GdVO4）高两个数量级。实验和理论上都表明，Yb 原子固有的较长荧光寿命导致了显着的光学灵敏度。已经成功检测了大振幅环境振动中目标的纳米级振动，这在实际测量环境中是理想的。
We have demonstrated self-mixing laser Doppler measurements using a laser-diode-pumped thin-slice Yb:Y3Al5O12 (Yb:YAG) ceramic laser whose optical sensitivity is two orders of magnitude higher than that of Nd-doped solid-state lasers, e.g., Nd:GdVO4. The pronounced optical sensitivity has been experimentally and theoretically shown to result from a longer fluorescence lifetime inherent in Yb atoms. The successful detection of nanometer-scale vibrations of a target embedded in large-amplitude environmental vibrations, which is desired in actual measurement circumstances, has been performed.