In theory, we study the quantum tluctuatlons ot tlae suDllarmonlc renecteu nela Irom a ulplc-rc^ulltUtt IdU^ClIClatC optical parametric amplifier （OPA） inside an optical cavity. We discuss two cases, where the linew...In theory, we study the quantum tluctuatlons ot tlae suDllarmonlc renecteu nela Irom a ulplc-rc^ulltUtt IdU^ClIClatC optical parametric amplifier （OPA） inside an optical cavity. We discuss two cases, where the linewidth of the harmonic field is either much narrower or broader than the subharmonic field. Since an electromagnetically-induced-transparency （EIT）-like effect can be simulated in a triple-resonant OPA, the output spectra from a triple-resonant OPA with a squeezed vacuum input may simulate the phenomenon of the response of an EIT medium for squeezed states. This scheme can be implemented with present experimental setups.展开更多
We experimentally investigate the optical cavity tor various coupled regimes wltn an mjectea squeezeo vacuum state. We measure the quantum fluctuation spectra of the reflected field of an optical cavity using the homo...We experimentally investigate the optical cavity tor various coupled regimes wltn an mjectea squeezeo vacuum state. We measure the quantum fluctuation spectra of the reflected field of an optical cavity using the homodyne detection and present the spectral dependence on the absorption and dispersion properties of the cavity in the under-coupled, critically-coupled, and over-coupled regimes. The spectra lineshape is phase sensitive with the phase shift induced by the cavity. Moreover, we find that the over-coupled optical cavity has obvious advantage in the manipulation of quantum fluctuation.展开更多
基金supported by the National Basic Research Program of China (Grant No. 2011CB921601)the National Natural Science Foundation of China for Excellent Research Team (Grant No. 61121064)+1 种基金the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20111401130001)the Graduate Outstanding Innovation Item of Shanxi Province, China (Grant No. 20113001)
文摘In theory, we study the quantum tluctuatlons ot tlae suDllarmonlc renecteu nela Irom a ulplc-rc^ulltUtt IdU^ClIClatC optical parametric amplifier （OPA） inside an optical cavity. We discuss two cases, where the linewidth of the harmonic field is either much narrower or broader than the subharmonic field. Since an electromagnetically-induced-transparency （EIT）-like effect can be simulated in a triple-resonant OPA, the output spectra from a triple-resonant OPA with a squeezed vacuum input may simulate the phenomenon of the response of an EIT medium for squeezed states. This scheme can be implemented with present experimental setups.
基金supported in part by the National "973"Program of China (No. 2011CB921601)NSFC Project for Excellent Research Team (No. 61121064)the Doctoral Program Foundation of Ministry of Education China (No. 20111401130001)
文摘We experimentally investigate the optical cavity tor various coupled regimes wltn an mjectea squeezeo vacuum state. We measure the quantum fluctuation spectra of the reflected field of an optical cavity using the homodyne detection and present the spectral dependence on the absorption and dispersion properties of the cavity in the under-coupled, critically-coupled, and over-coupled regimes. The spectra lineshape is phase sensitive with the phase shift induced by the cavity. Moreover, we find that the over-coupled optical cavity has obvious advantage in the manipulation of quantum fluctuation.
