Extended Tunability in a Two-Chip VECSEL (Postprint)

Abstract

We demonstrate a widely tunable vertical-external cavity surface-emitting laser (VECSEL) with a W-shaped cavity, in which two VECSEL chips serve as fold mirrors and a birefringent filter is inserted at Brewster's angle. These two chips provide much higher modal gain and broader bandwidth of the gain than a single chip does, enhancing the VECSEL tuning range and reducing the variation of tunable output power with the tuned wavelength. This two-chip VECSEL configuration makes it possible to shape the modal gain spectra of the laser or to manipulate the tuning curve of the laser by two different chips with certain gain peak detuning (offset). Multiwatts high-brightness linearly polarized output with a tuning range of 33 nm is demonstrated in such a two-chip VECSEL.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2007
Accession Number
ADA484784

Entities

People

  • Aramais R. Zakharian
  • James T. Murray
  • Jerome V. Moloney
  • Joerg Hader
  • Li Fan
  • Mahmoud Fallahi
  • Robert Bedford
  • Stephan W. Koch
  • Wolfgang Stolz

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Bandwidth
  • Brightness
  • Detuning
  • Diameters
  • Laser Beams
  • Lasers
  • Military Research
  • Optics
  • Quantum Wells
  • Spectra
  • Surface Emitting Lasers
  • Tuning
  • United States
  • Universities

Readers

  • Integrated Circuit Design and Technology.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy