An Experimental Investigation of the Resonant Modes of a Rooftop Laser.

Abstract

First-surface roof-reflectors were constructed with apex angles near 90 deg and used as resonator elements in a 2-meter laser cavity with a gain medium of electrically excited CO2, N2, and He at 10 torr pressure. The divergence, far-field intensity distribution, and beat frequency components were measured for the output beams of several roof-resonator configurations. Both single-mode and multi-mode operation was achieved, and the mode structure of the several alignment-insensitive configurations was inferred. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1976
Accession Number
ADA034006

Entities

People

  • Ronald L. Grotbeck

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Analyzers
  • Carbon Dioxide Lasers
  • Cavity Resonators
  • Detectors
  • Equations
  • Far Field
  • Frequency Analyzers
  • Geometry
  • Laser Beams
  • Laser Resonators
  • Measurement
  • Near Field
  • Partial Pressure
  • Recording Systems
  • Standing Waves
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.

Technology Areas

  • AI & ML
  • Directed Energy
  • Directed Energy - Lasers