Dichromatic squeezing generation

We propose a novel scheme for the joint generation of two squeezed beams at arbitrary frequencies omega (1) and omega (2). The scheme consists of two successive steps, both involving nonlinear interactions in chi ((2)) crysta ls. The dynamics of the setup is analyzed both quantum mechanically and cla ssically within the parametric approximation. An experimental implementatio n involving the fundamental and the harmonics of a Nd:YAG laser pulse, and beta -BaB2O4 nonlinear crystals is suggested.