Broadband wavelength discriminator

Details Broadband wavelength discriminator Broadband wavelength discriminator

1976-03-10

1977-08-16

Evans, F. L.

Optics: measuring and testing

Oil testing

356114, G01J 300

Patent

active

040423026

ABSTRACT:
A broadband optical discriminator for determining the wavelength of received radiation which is in a narrow band is described. The received radiation is passed through a polarization spoiler, a linear polarizer, a polarization dispersion device, and a beam splitting polarizer forming two beams. The intensity of the two beams is converted into electrical signals. The electrical signals are processed to provide a signal indicative of the wavelength of the incident radiation.

REFERENCES:
patent: 2742818 (1956-04-01), Hurlbut, Jr.
patent: 3927945 (1975-12-01), Bates

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