ERBIUM LASER PROPAGATION IN SIMULATED ATMOSPHERES. I. DESCRIPTION OF EXPERIMENTAL APPARATUS AND PRELIMINARY RESULTS

Abstract

Initial results are presented of an experimental study utilizing an absorption cell facility to determine erbium laser propagation characteristics in simulated atmospheres. The facility consists of a 3.3-meter spectrometer coupled to a 20-meter multipass absorption cell. The cell environment can be controlled over a wide range of pressures, temperatures, humidities, and gas concentrations. Absorption measurements were made with path lengths varying from 400 to 1600 meters in a simulated atmosphere consisting of clean dry air. The initial experimentally measured attenuation of 1.54 micron radiation by clean dry air is less than 25% per km. The results include the discovery of a new emission line of the erbium laser at 1.544 microns and the simultaneous emission of lines at 1.544 and 1.536 microns.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1969
Accession Number
AD0693254

Entities

People

  • K. O. White
  • R. B. Gomez

Organizations

  • Atmospheric Sciences Laboratory

Tags

Communities of Interest

  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption
  • Atmospheric Physics
  • Atmospheric Sciences
  • Boundary Layer
  • Control Systems
  • Detection
  • Detectors
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Environment
  • Measurement
  • Mie Scattering
  • Optics
  • Quantum Yields
  • Radiation
  • Refractive Index
  • Research Facilities

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Optical Physics and Photonics.
  • Spectroscopy.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers