Two-Dimensional Bragg Microcavity Lasers

Abstract

This Augmentation Award for Science and Engineering Research Training (AASERT) program supported the research of one graduate student (Pamela Greene) to carry out fundamental investigations of semiconductor lasers that make use of circular, two-dimensional Bragg gratings to define novel semiconductor laser microresonators. Such a laser can be described as a circularly symmetric, surface- emitting, distributed-feedback (DFB) semiconductor laser. Under ideal conditions, the spatial mode of the laser (within the waveguide) consists of a combination of radially inward- and outward-going circular waves coupled by the circular Bragg grating. The grating period is chosen to satisfy the second-order Bragg condition for back-reflection, so the grating in addition couples the circulating circular waves to the radiation field propagating normal to the mean surface (transverse cavity). The combined theoretical and experimental research examined the properties of the Bessel-Gauss beams emitted by these lasers and the details of transverse-mode selection in these two-dimensional lasers.

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Document Details

Document Type
Technical Report
Publication Date
Dec 30, 2000
Accession Number
ADA386969

Entities

People

  • Dennis G. Hall

Organizations

  • University of Rochester

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Distributed Feedback Lasers
  • Electron Beam Lithography
  • Electronics
  • Engineering
  • Lasers
  • Light (Electromagnetic Radiation)
  • Optics
  • Quantum Cascade Lasers
  • Quantum Electronics
  • Quantum Well Lasers
  • Radiation
  • Semiconductor Lasers
  • Semiconductors
  • Surface Emitting Lasers
  • Transverse
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Structural Dynamics.

Technology Areas

  • Directed Energy
  • Microelectronics