High average power 1.5 microm eye-safe Raman shifting in BaWO4 crystals

Appl Opt. 2009 Jan 1;48(1):7-10. doi: 10.1364/ao.48.000007.

Abstract

A nanosecond 1.3 microm Nd:YAG laser-pumped external cavity eye-safe Raman laser based on BaWO(4) crystal is efficiently demonstrated. The average power of 1.5 microm was 0.60 W operating at a pulse repetition rate of 1.7 kHz and an incident pump power of 4.14 W. Conversion efficiency of 14.5% and a high slope efficiency of 54.5% have been achieved. Pulse shortening was obviously observed. The pulse duration of the first Stokes was about 40 ns, much shorter than the fundamental pulse with a duration of approximately 220 ns.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Barium Compounds / chemistry*
  • Crystallization / methods*
  • Equipment Design
  • Equipment Failure Analysis
  • Eye Injuries / prevention & control
  • Lasers*
  • Spectrum Analysis, Raman / instrumentation*

Substances

  • Barium Compounds