EHF Fiber Optic Transmitter Module

Abstract

Some aspects of the theory of free-carrier-induced refractive index changes in semiconductors are covered as well as some device structures aimed at exploiting this effect to provide for high frequency analog optical modulation are covered in this report. High optical loss and the requirement of large current changes at high frequencies prevented exploiting this effect initially at 10 GHz and then at greater than 30 GHz in the directional coupler architecture. A thermal switch was incidentally explored which had a risetime of 0.3 microseconds and required 0.8 watts to operate.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1992
Accession Number
ADA257586

Entities

People

  • R. R. Hayes

Organizations

  • HRL Laboratories

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Detectors
  • Dielectric Permittivity
  • Electro-Optic Modulators
  • Electron Density
  • Electronics Laboratories
  • Energy Bands
  • Fabrication
  • Field Effect Transistors
  • Metal-Semiconductor Junctions
  • Optical Modulators
  • Power Electronics
  • Refractive Index
  • Schottky Diodes
  • Semiconductor Devices
  • Semiconductor Lasers
  • Semiconductors
  • Transistors

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Microwave Engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Microelectronics