作者: R. Ghosh , G. S. Agarwal
关键词: Quantum electrodynamics 、 Photon 、 Mixing (physics) 、 Nonlinear system 、 Laser 、 Limit (music) 、 Physics 、 Quantum mechanics 、 Optical pumping 、 Laser linewidth 、 Absorption (electromagnetic radiation)
摘要: It is theoretically shown how a two-photon laserlike oscillator with strongly squeezed output can be constructed. The physical mechanism leading to the strong competition among nonlinear gain due resonant four-wave mixing process, losses absorption of generated photons, and linear from cavity. In balanced case, photon correlations result in linewidth that narrower than Schawlow-Townes limit.