title: Long-haul self-mixing interference and remote sensing of a distant moving target with a thin-slice solid-state laser.
abstract: 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.
authors.forename: Kenju
authors.initials: K
authors.lastname: Otsuka