Time-Shared Aperture Device.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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A time-shared aperture device using the laser illuminated target to provide a return wavefront which passes through the optical train and beam expander. The distortions in this return wavefront are sampled by a rotating beam chopper which completely blocks the outgoing beam, thereby preventing scattered laser light in the optical train and beam expander from drowning out the fainter target return. Wavefront analyzers provide an indication of errors present in the optical system so that correction may be applied. Author
- Lasers and Masers
- Optical Detection and Detectors