Accession Number : ADA291010

Title :   Advanced Presort Process.

Descriptive Note : Rept. for Dec 91-Sep 93,

Corporate Author : ROME LAB GRIFFISS AFB NY

Personal Author(s) : Grucza, David

PDF Url : ADA291010

Report Date : NOV 1994

Pagination or Media Count : 33

Abstract : The purpose of the Presort Processor is to excise strong narrow band signals from a wideband radar return. It is an optical notch filter based on acoustooptics and fourier transform optics. This latest iteration of this project uses a narrow bandwidth doubled Nd:YAG laser as an optical carrier and a TIR (total internal reflection) liquid crystal spatial light modulator to perform the frequency excision. (MM)

Descriptors :   *RADAR SIGNALS, *OPTICAL PROCESSING, *ACOUSTOOPTICS, FOURIER TRANSFORMATION, YAG LASERS, ELECTROOPTICS, REFLECTION, LASER BEAMS, OPTICAL INTERFEROMETERS, LIQUID CRYSTALS, SPECTRUM ANALYSIS, LIGHT MODULATORS, OPTICAL FILTERS, BRAGG SCATTERING, FREQUENCY SHIFT.

Subject Categories : Electrooptical and Optoelectronic Devices
      Acoustooptic and Optoacoustic Devices
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE