Enhanced continuous-variable entanglement by a self-phase-locked type-II optical parameter oscillator with feedback loops
Yonghong Ma, Qing-Xia Mu, Guo-Hui Yang, Ling Zhou · Journal of Physics B Atomic Molecular and Optical Physics · 2008
We consider a three-level cascade laser with a self-phase-locked type-II nondegenerate optical parameter oscillator via a homodyne-mediate quantum feedback. Applying the pertinent master equation, we investigate the squeezing, entanglement properties and the mean photon number produced by our system. It is found that highly squeezed and macroscopic entangled light with high intensity can be generated.