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Opt Lett. 2014 Feb 15;39(4):1069-72. doi: 10.1364/OL.39.001069.

Long-haul self-mixing interference and remote sensing of a distant moving target with a thin-slice solid-state laser.

Erratum in

  • Opt Lett. 2014 May 15;39(10):3046.


An effective long-haul self-mixing interference effect has been observed in a thin-slice LiNdP₄O₁₂ (LNP) laser due to Doppler-shifted optical feedback from a distant target. The narrow spectral linewidth of the LNP laser, which was evaluated to be 16 kHz by heterodyne measurements, led to successful self-mixing laser Doppler velocimetry and vibrometry of targets placed 2.5 km away from the laser through single-mode optical fiber access.

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