The Precision Imaging System (PIMS) Concept

Abstract

Direct modulation of a buried heterostructure (BH) Indium Gallium Arsenide Phosphide laser diode was performed up to 18 GHz, and FM properties were observed. The number of lasing modes increased with increasing modulation depth. For a given rf power, the FM index went from 0.7 to 0 as the modulation frequency was increased. These measurements indicate that the nonlinear gain effects mainly influence the modulation characteristics of this laser, and wider bandwidths and modulation indexes can be achieved in this type of multimode device. Keywords: Semiconductor lasers; Direct current modulation; Fast detectors; Nonlinear gain effects; Modulation index; FM properties.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1989
Accession Number
ADA214594

Entities

People

  • James O. Pilcher Ii.
  • Mark A. Dewilde
  • Melinda B. Krummerich
  • Richard A. Beyer

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Artillery
  • Converters
  • Detection
  • Detectors
  • Environment
  • Fiber Optics
  • Fire Control Systems
  • Image Processing
  • Integrated Circuits
  • Light Sources
  • Military Research
  • Munitions
  • Optics
  • Projectiles
  • Recording Systems
  • Semiconductors
  • Tank Guns

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Semiconductor Device Technology

Technology Areas

  • Directed Energy
  • Microelectronics