Accession Number : ADD011845

Title :   Technique for the Reduction of Fading in Interferometers.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Frigo,N J ; Dandridge,A ; Tveten,A B

Report Date : 12 Apr 1985

Pagination or Media Count : 12

Abstract : This patent application discloses a passive device for reducing polarization fading in interferometers without significantly degrading the signal-to-noise ratio. In one embodiment, light form an interferometer output is passed through a lens to a polarization mask. The polarization mask comprises at least three independent polarizers which pass independent states of polarizers each independently polarized signal is detected, demodulated and passed to a means for signal extraction.

Descriptors :   *PATENT APPLICATIONS, *INTERFEROMETERS, *FADING(ELECTROMAGNETIC WAVES), DEMODULATION, OUTPUT, POLARIZERS, MASKS, POLARIZATION, EXTRACTION, SIGNALS, PASSIVE SYSTEMS, SIGNAL TO NOISE RATIO

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE