2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92873We study the Wigner function of phase-locked nondegenerate optical parametric oscillator and find the signatures of both phase-locking and self-pulsing phenomena in phase space. We also analyze the problem of continuous-variable entanglement in the self-pulsing instability regime.Will be published in "Proceedings of conference Laser Physics-2004", October 12-15, 2004, Ashtarak, ArmeniaQuantum Physicstext