Laser radar with reference beam storage

Details Laser radar with reference beam storage Laser radar with reference beam storage

1993-10-18

1996-04-23

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 501, 356 514, 356 515, 356349, 356 285, G01C 308

Patent

active

055108903

ABSTRACT:
In a laser radar system, in which pulses from a laser are focused by a telescope onto a target, the back-scattered radiation being deflected by polarizing beam splitter onto a detector in conjunction with a reference beam, the reference beam being produced from pulses derived from the pulse laser by the beam splitter, the pulses making repeated journeys around a cavity and a proportion of the pulse being emitted each time so that each input pulse produces a multiplicity of output pulses to form the reference beam, thereby avoiding the need for a separate laser for the reference beam.

REFERENCES:
patent: 3402630 (1968-09-01), Blau et al.
patent: 3811774 (1974-05-01), Honeycutt et al.
patent: 3950100 (1976-04-01), Keene et al.
patent: 4298280 (1981-11-01), Harney
patent: 4447149 (1984-05-01), Marcus et al.
patent: 4521107 (1985-06-01), Chaborski et al.
patent: 4655588 (1987-04-01), Chenausky et al.
patent: 4770526 (1988-09-01), Manhart et al.

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