We analyze the squeezing characteristics of a singly resonant second-harmonic-generation system, in which only the fundamental light is confined in a plain cavity resonator, with consideration for fundamental depletion in a nonlinear crystal. The system was analyzed under the mean-field approximation, which neglects the variation of the field in the crystal, and as much as 9.5 dB of squeezing was predicted in the second-harmonic output. On the basis of the self-consistent method, we analyze the system, which is driven by such an intense fundamental input that the mean-field approximation is not valid, and predict that an arbitrary amount of squeezing will be available in this regime.
© 1996 Optical Society of America
Joji Maeda and Kazuro Kikuchi, "Bright squeezing by singly resonant second-harmonic generation: effect of fundamental depletion and feedback," Opt. Lett. 21, 821-823 (1996)