Lidars With Narrow FOV for Daylight Measurements
作者： Ronald Eixmann , Michael Gerding , Josef Hoffner , Maren Kopp
DOI: 10.1109/TGRS.2015.2401333
关键词: Laser power scaling 、 Laser linewidth 、 Laser 、 Physics 、 Optics 、 Laser Doppler vibrometer 、 Distributed feedback laser 、 Beam diameter 、 Laser beam quality 、 Beam parameter product
摘要: Daytime lidar operation in the middle atmosphere requires a narrow field of view (FOV) receiving telescope for effective background reduction and high-transmission narrow-band detection. The laser beam position relative to optical axis is subject high-frequency disturbances such as turbulence, vibration, wind well comparable slow drift (thermal effects laser, stability building, etc.). We developed stabilization system (BSS) that ensured pulse-to-pulse with ~ 3 μrad remaining jitter, allowing 60 FOV. With BSS single-pulse data acquisition system, optimal alignment can be controlled, information on FOV divergence far derived. capability stabilize against all internal external below repetition rate laser.
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