Independent polarization state measurements sensor

Details Independent polarization state measurements sensor Independent polarization state measurements sensor

1989-11-08

1991-12-17

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With polariscopes

356364, G01J 404

Patent

active

050730258

ABSTRACT:
A means of mapping the polarization across a laser beam 1 comprising the steps of dividing the laser beam into six beams 11, 12, 21, 22, 31, 32 each having a different polarization and phase. Measuring the intensity of each beam in charge coupled devices 111, 112, 121, 122, 131, 132, having an array of pixels. Matching the pixels in each array to their proper portion in laser beam 1. Adding the values obtained in each pixel to obtain a composite polarization map.

REFERENCES:
patent: 3556662 (1971-01-01), Levenstein et al.
patent: 3992571 (1976-11-01), Garlick et al.
patent: 4158506 (1979-06-01), Collett
patent: 4269511 (1981-05-01), Erwin
patent: 4310247 (1982-01-01), Korth et al.

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