2.3 Micron High Power Continuous Wave Diode Laser Arrays

Abstract

The goal of this project has been the creation of high power laser diode arrays emitting at 2.3 microns. We have achieved that goal with the design fabrication and characterization of laser bars with unprecedented output power and brightness. We have demonstrated quasicontinuous (qCW) wave output powers of 16.7 W from a single 4 mm laser bar. An initial slope efficiency of 0.235 W/A and a threshold current of 6.9 A were demonstrated. Scaled to the industry standard 10 mm laser bar length, this device would have produced 41.75 W of qCW output power at 18 deg. C. This report identifies the key advancements made during the course of this research effort.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2008
Accession Number
ADA583095

Entities

People

  • David Westerfield

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Conduction Bands
  • Crystal Lattice Vibrations
  • Current Density
  • Electronics Industry
  • Emission Spectra
  • Energy Bands
  • Epitaxial Growth
  • Fabrication
  • Fermi Levels
  • Heat Sinks
  • Heterojunctions
  • Laser Applications
  • Laser Arrays
  • Laser Diodes
  • Materials
  • Quantum Wells
  • Semiconductors

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy