Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1988-09-27
1990-07-10
LaRoche, Eugene R.
Optics: measuring and testing
By particle light scattering
With photocell detection
372 32, G01B 902
Patent
active
049403311
ABSTRACT:
A heterodyne laser instantaneous frequency measurement system is disclosed. The system utilizes heterodyning of a pulsed laser beam with a continuous wave laser beam to form a beat signal. The beat signal is processed by a controller or computer which determines both the average frequency of the laser pulse and any changes or chirp of the frequency during the pulse.
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patent: 3950100 (1976-04-01), Keene et al.
patent: 4190362 (1980-02-01), Dubrunfaut
patent: 4272193 (1981-06-01), Eastman et al.
patent: 4325635 (1982-04-01), Sattler et al.
patent: 4668093 (1987-05-01), Cahill
Burghardt et al., "Beat Frequency . . . 80-GHz Band", Applied Phys. Lett., vol. 35, No. 7, Oct. 1979, pp. 498-500.
Globig Michael A.
Johnson Michael A.
Wyeth Richard W.
Gaither Roger S.
Ham Seung
LaRoche Eugene R.
Moser William R.
The United States of America as represented by the United States
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