Light wave polarization determination using a hybrid system

Details Light wave polarization determination using a hybrid system Light wave polarization determination using a hybrid system

1990-02-08

1992-04-07

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With polariscopes

356365, G01J 404

Patent

active

051022222

ABSTRACT:
Apparatus and method for determining dynamically the polarization vector direction, or polarization vector components and associated temporal phase angle, of a light beam. The apparatus includes a compact polarization beam splitter that receives a beam of light, separates the beam into two perpendicular polarization components and directs these components to a pair of optical detectors and associated circuits that form the sum and difference signals of the electrical signals produced by the optical detectors. This produces a projection of the polarization vector on a given direction. If the light is generally elliptically polarized, use of two such polarization beam splitters and four optical detectors allows reconstruction of the polarization ellipse for the light beam. Alternatively, use of one such polarization beam splitter, two optical detectors and a rotating wave plate in a multiplexed configuration allows reconstruction of the polarization ellipse. The polarization detector is very compact and may be housed in a container that is no more than a few cm. in diameter.

REFERENCES:
patent: 3430048 (1969-02-01), Rubinstein
patent: 3556662 (1971-07-01), Levenstein et al.
patent: 3985447 (1976-10-01), Aspres
patent: 4158506 (1979-06-01), Collett
patent: 4482250 (1984-11-01), Hirvonen et al.
patent: 4492436 (1985-01-01), Bergmann
patent: 4539521 (1985-09-01), Matsumoto
patent: 4584470 (1986-04-01), Iizuka et al.
patent: 4585348 (1986-04-01), Chastang et al.
patent: 4653867 (1987-03-01), Urabe et al.
patent: 4685773 (1987-08-01), Carlsen et al.
patent: 4702557 (1987-10-01), Beckmann et al.
patent: 4720162 (1988-01-01), Mochizuki et al.
patent: 4761050 (1988-08-01), Byron
Vergnes et al., "Ellipsometry Without a Compensator-Two Improvements in Speed and Reliability of the Monin and Boutry Method", Optics Communications, vol. 32, No. 1, (Jan. 1980), pp. 5-10.
Okoshi et al., "Polarization-Diversity Receiver for Heterodyne/Coherent Optical Fiber Communications", The Fourth IOOC Paper, No. 30C3-2, Jun. 27.30, 1983, Tokyo, Japan.
Jellison, "Four-Channel Polarimeter for Time-Resolved Ellipsometry", Optics Letters, vol. 12 (1987), pp. 766-768.
Kasovsky, "Phase- and Polarization-Diversity Coherent Optical Techniques", I.E.E.E. Jour. of Lightwave Technology, vol. 7 (1989), pp. 279-322.

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