Integrated Optical Circuits for RF Spectrum Analysis.

Abstract

The development of a feasibility model for an integrated optic real-time rf spectrum analyzer is reported. The integrated optic spectrum analyzer consists of an injection laser diode, a thin-film optical waveguide incorporated onto a substrate with geodesic lenses, a surface acoustic wave (SAW) transducer, and a linear detector array. Functionally, rf spectrum analysis is effected as follows. An incoming radar signal is down shifted to the appropriate bandwidth, amplified, and used to drive the SAW transducers. The resultant SAWs interact through the acoustooptic effect with a collimated optical beam resulting in Bragg-diffracted beams whose intensities are proportional to the power level and whose directions are uniquely related to the frequency composition of the rf signal. The diffracted beams are focused onto unique positions at the focal plane detector array resulting in the spectrum analysis. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1980
Accession Number
ADB051694

Entities

People

  • Jooyoung Lee
  • T. R. Joseph
  • T. R. Ranganath

Organizations

  • HRL Laboratories

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Waves
  • Analyzers
  • Detectors
  • Focal Planes
  • Frequency
  • Laser Diodes
  • Optical Circuits
  • Optical Waveguides
  • Photonic Integrated Circuits
  • Power Levels
  • Radar Signals
  • Spectra
  • Spectrum Analysis
  • Spectrum Analyzers
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Transducers

Fields of Study

  • Physics

Readers

  • Integrated Circuit Design and Technology.
  • Optical Physics and Photonics.
  • Phased Array Antenna Design.

Technology Areas

  • Directed Energy