Accession Number:

ADD012319

Title:

Integrated Optical Signal Processor Using Diffraction of Light by Magnetostatic Waves.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1986-03-11

Pagination or Media Count:

12.0

Abstract:

This patent discloses an integrated optical signal processor which includes a thin film of yttrium iron garnet substrate. A guided optical beam in a first polarization mode is directed through the thin film. A stripline antenna formed on the surface of the thin film is coupled to receive a microwave RF input signal. Under the influence of a bias magnetic field, the RF input signal excites a magnetostatic wave in the thin film. By mans of Bragg diffraction, the magnetostatic wave diffracts the guided optical beam and thereby converts a portion of the beam into a second orthogonal polarization mode in response to the RF input signal. The guided optical beam is thereby modulates by the RF input signal. A preferred embodiment is disclosed which can be configured to form a spectrum analyzer, a time integrating correlator, and a space integrating convolver.

Subject Categories:

  • Electricity and Magnetism
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE