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.
@article{arxiv.quant-ph/0008071,
title = {Toward the multiphoton parametric oscillators},
author = {G. Yu. Kryuchkyan and N. T. Muradyan},
journal= {arXiv preprint arXiv:quant-ph/0008071},
year = {2009}
}