Locking of Diode Gain Modules Using Optical Conjugation Techniques

Abstract

This report reviews results of a study program to investigate technical issues relating to the coupling of multiple diode lasers using a phase conjugate resonator. We present calculations showing the effects on the far- field intensity distribution of either systematic or random phase differences between adjacent gain elements; these results dramatically illustrate the beneficial impact of exact phase locking. The use of phase conjugation to phase- lock the individual emitters is suggested, and computer calculations showing the beneficial effects on the far-field intensity distribution are reviewed. The normal modes of a multiple-element diode chip are derived; this information allows one to determine phase relationships characteristics of each mode. These relationships can be used to identify approaches that might be employed to favor one particular mode in a practical device.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1984
Accession Number
ADA141234

Entities

People

  • D. A. Rockwell
  • J. F. Lam

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Diffraction
  • Dispersion Relations
  • Far Field
  • Frequency
  • Geometry
  • Laser Applications
  • Laser Arrays
  • Laser Diodes
  • Laser Mediums
  • Lasers
  • Military Research
  • Optical Fibers
  • Optical Materials
  • Optics
  • Refraction
  • Refractive Index
  • Wave Mixing

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Phased Array Antenna Design.
  • Theoretical Analysis.

Technology Areas

  • Directed Energy