Z-scan Measurement of Upconversion in Er:YAG

Abstract

We have measured the cooperative upconversion parameter in Er:YAG using the z-scan technique as a function of Er concentration (0.5% to 5%) with the sample at room temperature (298 K) and 80 K. The value we obtain at room temperature is 2-3 times larger than previously reported. The value we obtain at 80 K is approximately eight times larger than the value at room temperature. One advantage of the z-scan technique is that the measurement can be carried out with the same quasi-cw diode laser that will pump the Er:YAG laser being developed.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2010
Accession Number
ADA639831

Entities

People

  • Carl E. Mungan
  • Jeffrey O. White
  • John E. Mcelhenny
  • Thomas A. Mercier Jr.

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Directed Energy Weapons
  • Distributed Feedback Lasers
  • Energy
  • Energy Transfer
  • Equations
  • Information Operations
  • Intensity
  • Laser Beams
  • Laser Diodes
  • Lasers
  • Low Temperature
  • Measurement
  • Mechanical Properties
  • Solid State Lasers
  • United States Naval Academy
  • Yag Lasers

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Mycotoxin ecology in Amazonian ecosystems.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers