Conversion efficiency for cw harmonic generation is calculated for the situation in which both fundamental and harmonic waves are resonant. Compared with the situation of a singly resonant cavity at the fundamental, the doubly resonant geometry can lead to an increase of the effective nonlinear coefficient. High conversion efficiency can thus be achieved with nonlinear crystals of relatively low nonlinear coefficients and with modest pump power for the fundamental input.
© 1993 Optical Society of America
Original Manuscript: February 4, 1993
Published: July 1, 1993
Z. Y. Ou and H. J. Kimble, "Enhanced conversion efficiency for harmonic generation with double resonance," Opt. Lett. 18, 1053-1055 (1993)