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首页> 外文期刊>Optics Letters >Real-time nanometer-vibration measurement with a self-mixing microchip solid-state laser
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Real-time nanometer-vibration measurement with a self-mixing microchip solid-state laser

机译：使用自混合微芯片固态激光器进行实时纳米振动测量

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摘要

Nanometer vibration analysis of a target has been demonstrated by a self-aligned optical feedback vibrometry technique that uses a laser-diode-pumped microchip solid-state laser. The laser output waveform, which was modulated through interference between a lasing field and an extremely weak (<-100-dB) frequency-modulated (FM) feedback field, was analyzed by the Hilbert transformation to yield the vibration waveform of the target. Experimental signal characteristics have been reproduced by numerical simulations. Real-time vibration measurement has also been achieved with a simple FM demodulation circuit.
机译：目标的纳米振动分析已通过使用激光二极管泵浦微芯片固态激光器的自对准光学反馈振动测定技术进行了证明。通过Hilbert变换分析了激光输出波形，该激光输出波形是通过激光场与极弱（<-100 dB）调频（FM）反馈场之间的干扰进行调制的，以产生目标的振动波形。实验信号特性已通过数值模拟再现。通过简单的FM解调电路也可以实现实时振动测量。

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