2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89369Inspired by laser operation, we address the question of whether stimulated emission into polarization entangled modes can be achieved. We describe a state produced by stimulated emission of the singlet Bell state and propose a setup for creating it. As a first important step towards an entangled-photon laser we demonstrate experimentally interference-enhanced polarization entanglement.8 pages, 3 figures, revtex 4, submitted to PRL November 2000Quantum Physicstext