High Brightness Spectral Beam Combination of High-Power Vertical-External-Cavity Surface-Emitting Lasers

Abstract

High brightness spectral beam combination of two high-power vertical-external-cavity surface-emitting laser (VECSEL) using volume Bragg grating in a photo-thermo-refractive (PTR) glass is demonstrated. High efficiency beam combination in excess of 90% is achieved, providing an efficient method for power scaling of diffraction limited beam. The beam quality of each starting lasers was 1.68 and 1.35, and that of combined beam was 1.9. Scaling opportunities based on the parameters of VECSELs and PTR Bragg gratings are discussed.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 2006
Accession Number
ADA455232

Entities

People

  • Armis R. Zakharian
  • Jerome V. Moloney
  • Joerg Hader
  • Li Fan
  • Mahmoud Fallahi
  • Nasser Peyghambarian
  • Stephan Koch
  • Ta-chen Hsu
  • Wolfgang Stoltz
  • Yushi Kaneda

Organizations

  • University of Arizona

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Antireflection Coatings
  • Bragg Gratings
  • Brightness
  • Diffraction
  • Efficiency
  • Failure Mode And Effect Analysis
  • Gratings (Spectra)
  • Laser Beams
  • Lasers
  • Optics
  • Photonics
  • Reflection
  • Semiconductor Lasers
  • Surface Emitting Lasers
  • Universities

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy