Mode-Locked, Frequency-Doubled Neodymium Laser.

Abstract

Investigations were conducted in the areas of second harmonic generation and mode locking with CW neodymium:YAG Lasers. Demonstration of consistent and reproducible 100% conversion of the available CW power at 1.06 microns into 0.53 micron power was accomplished at a level of 2.1 watts in the TEM(oo) mode. A completely electronic closed loop automatically stabilized mode-locking system was developed, with capability of tracking plus or minus 1.5% variations in cavity length. Experimental and theoretical investigations of combined mode locking and intracavity second harmonic generation using a common Ba2NaNb5O15 crystal showed that there was a strong interaction between the processes, the nonlinear harmonic generation having a serious effect on mode-locking effectiveness. Thermal effects due to absorption in the nonlinear crystal were shown to have a significant effect on second harmonic generation. Correlation between theory and experiment was obtained. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1970
Accession Number
AD0878233

Entities

People

  • E. G. Erickson
  • J. H. Boyden
  • R. Webb

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Conversion
  • Demographic Cohorts
  • Demonstrations
  • Frequency
  • Lasers
  • Neodymium
  • Neodymium Lasers
  • Optical Materials
  • Second Harmonic Generation
  • Yag Lasers

Fields of Study

  • Engineering
  • Physics

Readers

  • Mathematics or Statistics
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Microelectronics