Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1982-09-17
1985-08-20
Willis, Davis L.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
250227, G01B 902
Patent
active
045360880
ABSTRACT:
A polarimetric Fabry-Perot sensor comprising a source of coherent polarized light, an optical cavity, preferably an optical fiber, capable of supporting two independent modes of that light and coated with partially reflecting material on both ends, a sensing element for detecting the external field that differentially affects the two modes, and means for measuring interference between the two modes.
REFERENCES:
patent: 4180328 (1979-12-01), Drain
patent: 4215938 (1980-08-01), Farraud et al.
patent: 4442350 (1984-04-01), Rashleigh
S. J. Petuchowski et al., A Sensitive Fiber Optic Fabry-Perot Interferometer, IEEE Journal of Quantum Electronics, vol., QE-17, pp. 2168-2170, Nov. 1981.
Birnbaum et al., "A Sensitive Interferometric Null Method for Measuring Stress-Induced Birefringence", Conference: Laser Induced Damage in Optical Materials, Boulder, Col., 1973.
Petuchowski Samuel J.
Rashleigh Scott C.
Beers Robert F.
Ellis William T.
Guenzer Charles S.
Koren Matthew W.
Willis Davis L.
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