作者: Kenju Otsuka , Kazutaka Abe , Natsumi Sano , Seiichi Sudo , Jing-Yuan Ko
DOI: 10.1364/AO.44.001709
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摘要: We demonstrate real-time two-channel self-mixing laser-Doppler measurement with extreme optical sensitivity using a laser-diode-pumped thin-slice LiNdP4O12 laser. Successful carrier-frequency-division-multiplexed operations are realized by one laser, two sets of frequency shifters, and frequency-modulated-wave demodulation circuit. Simultaneous independent measurements vibrations speakers averaged motions small Brownian particles in different scattering cells demonstrated. Self-mixing photon correlation spectroscopy particle size distributions is also discussed.