Title :
Resonant sum-frequency generation
Author :
Moore, Gerald T.
Author_Institution :
Air Force Res. Lab., Kirtland AFB, NM, USA
fDate :
1/1/2002 12:00:00 AM
Abstract :
A theoretical and numerical analysis of doubly or singly resonant sum-frequency generation of two laser beams in an external cavity is presented. The plane-wave equations for three-wave mixing-as applied to Gaussian beams using a Boyd-Kleinman overlap integral-are found to give excellent agreement with 3-D numerical simulations. In many regimes of practical interest, the present theory is also in excellent agreement with earlier work of Kaneda and Kubota. In particular, the generation of 589-nm CW sodium-resonance radiation in lithium triborate using two Nd:YAG lasers is considered. Matching the photon flux of the two laser beams is generally optimal. A suitable choice of input-coupler reflectivities (decreasing as the flux level increases) results in high-efficiency conversion with acceptable tolerance to input flux imbalance
Keywords :
integral equations; laser beams; laser cavity resonators; laser transitions; multiwave mixing; optical frequency conversion; reflectivity; resonant states; 3-D numerical simulations; 589 nm; Boyd-Kleinman overlap integral; CW sodium-resonance radiation; Gaussian beams; Nd:YAG lasers; YAG:Nd; YAl5O12:Nd; external cavity; high-efficiency conversion; input flux imbalance; input-coupler reflectivities; laser beams; lithium triborate; photon flux; resonant sum-frequency generation; three-wave mixing; Frequency conversion; Integral equations; Laser beams; Laser excitation; Laser theory; Numerical simulation; Optical mixing; Optical resonators; Pump lasers; Resonance;
Journal_Title :
Quantum Electronics, IEEE Journal of
