Coherent laser radar at 3.6 microm.
Coherent laser radar systems in the mid-IR wavelength region can have advantages in low-altitude environment because they are less sensitive to scattering, turbulence, and humidity, which can affect shorter- or longer-wavelength system. We describe a coherent laser radar at 3.6 microm based on a single-frequency optical parametric oscillator and demonstrate the system over short ranges outdoors. The system was used to make micro-Doppler measurements from idling trucks that were processed to give surface vibration spectra.
Hanson
Frank
F
Space and Naval Warfare Systems Center, Code 2853, 53490 Dow Street, San Diego, California 92152, USA. hansonfe@spawar.navy.mil
Lasher
Mark
M