Title :
Raman oscillation with intracavity sum-frequency generation
Author :
Koch, Karl ; Moore, Gerald T.
Author_Institution :
USAF Res. Lab., AFRL-DELO, NM, USA
fDate :
1/1/1999 12:00:00 AM
Abstract :
We use a plane-wave analysis to examine a Raman oscillator containing an intracavity sum-frequency interaction that frequency sums the circulating first-order Stokes radiation with the pump radiation. We find that there is an optimum ratio between the nonlinear coupling in the Raman medium and the nonlinear coupling in the sum-frequency generator. We also find that higher order Stokes radiation should be suppressed with the optimum choice of nonlinear coupling in the sum-frequency interaction. Numerical integration of the equations containing transverse effects predicts a time-averaged power-conversion efficiency of 61.4% for conversion of 532- to 273.5-nm radiation using a CW mode-locked frequency-doubled Nd:YAG laser with Ba(NO2) 3 for the Raman material and CsLiB6O10 (CLBO) for the sum-frequency material
Keywords :
Raman lasers; caesium compounds; laser cavity resonators; lithium compounds; optical frequency conversion; optical materials; optical pumping; 532 to 273.5 nm; 61.4 percent; Ba(NO2)3; CW mode-locked frequency-doubled Nd:YAG laser; CsLiB6O10; Raman material; Raman medium; Raman oscillation; Raman oscillator; YAG:Nd; YAl5O12:Nd; circulating first-order Stokes radiation; frequency sums; higher order Stokes radiation; intracavity sum-frequency generation; intracavity sum-frequency interaction; nonlinear coupling; optimum choice; optimum ratio; plane-wave analysis; pump radiation; sum-frequency generator; sum-frequency interaction; sum-frequency material; time-averaged power-conversion efficiency; transverse effects; Couplings; Frequency conversion; Laser mode locking; Nonlinear optics; Optical frequency conversion; Optical materials; Optical mixing; Oscillators; Resonance; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
