Investigations of Fiber Optic Delay Line Signal Processors and a Fiber Optic Intrusion Sensor System.

Abstract

A programmable fiber optic delay line using optical switches, a fiber optic delay line sequence generator, and a distributed fiber optic intrusion sensor were investigated. The programmable delay line is based upon a network of all-fiber switches connected by fibers of different lengths. The switches showed an unprecedented combination of low insertion loss, polarization independent operation, and fast switching. A 4-stage system with 16 different programmable delays was constructed. The sequence generator consists of a laser which injects optical pulses into a network of 2x2 fiber couplers connected by filters of different length. Unipolar and bipolar sequences were generated at Gbit/sec rates. The intrusion sensor system analyzed in this report is intended to detect, locate, and classify intruders over long perimeters. A range of 28 km for 100 m range resolution is predicted.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1997
Accession Number
ADA322567

Entities

People

  • Henry F. Taylor

Organizations

  • Texas A&M University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Communication Systems
  • Delay Lines
  • Detection
  • Detectors
  • Distributed Feedback Lasers
  • Generators
  • Insertion Loss
  • Light Sources
  • Measurement
  • Monte Carlo Method
  • Optical Correlators
  • Optics
  • Quantum Cascade Lasers
  • Semiconductor Lasers
  • Semiconductors
  • Sensor Networks
  • Signal Processing

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Sensor Fusion and Tracking Systems.

Technology Areas

  • Directed Energy