Low-Noise WideBand Heterodyne Optical Array Receiver

Abstract

A system and method is disclosed for detecting optical signals that is especially suitable for use with a fiber optic sonar transducer array. The system preferably uses two photodiodes with a frequency response matched to within one percent over a bandwidth of at least one Gigahertz to reduce common mode intensity noise. Preferably the two photodiodes are manufactured on the same semiconductor wafer to provide as closely identical properties as possible. In one preferred embodiment, two low-noise miniature microwave integrated circuits are used to amplify the detected signal. A biasing network biases and couples the miniature integrated circuits together.

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Document Details

Document Type
Technical Report
Publication Date
Oct 10, 2000
Accession Number
ADD019886

Entities

People

  • Vinson L. Go

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bandwidth
  • Circuits
  • Detection
  • Detectors
  • Electronics
  • Frequency
  • Frequency Response
  • Integrated Circuits
  • Local Oscillators
  • Low Noise
  • Microwave Integrated Circuits
  • Networks
  • Optical Detection
  • Optical Detectors
  • Photodetectors
  • Photodiodes
  • Semiconductors

Fields of Study

  • Engineering

Readers

  • Electronics Engineering
  • Image Processing and Computer Vision.
  • Phased Array Antenna Design.

Technology Areas

  • Directed Energy
  • Microelectronics
  • Microelectronics - Microelectromechanical Systems