%0 Journal Article %T Toward the multiphoton parametric oscillators %A G. Yu. Kryuchkyan %A N. T. Muradyan %J Physics %D 2000 %I arXiv %R 10.1016/S0375-9601(00)00801-X %X We propose novel types of parametric oscillators generating both three-photon and four-photon bright light which are accessible for an experiment. The devices are based on the cascaded down-conversion processes and consist of second-order media inserted in two-resonant mode cavity. Discussion of dissipation and quantum features of the system are performed by the quantum-jump simulation method and concerns to the Wigner functions. The phase-space multistabilities and critical threshold behavior of three- and four-photon subharmonics are obtained. %U http://arxiv.org/abs/quant-ph/0008071v1