15 March 2016 Quantum phenomena in ultra-high Q whispering gallery mode resonators and applications to quantum information systems
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Abstract
Kerr optical frequency combs are obtained by pumping an ultra-high Q whispering-gallery mode resonator with a continuous-wave laser. Here, we use quantum Langevin equations to investigate the non-classical behavior of these combs when pumped below and above threshold. Under threshold, we study the phenomenon of spontaneous four-wave mixing, while above threshold, we investigate the phenomenon of two-mode squeezing. For both the below- and above-threshold cases, we find that an essential parameter is the ratio between out-coupling and total losses, which directly determines the efficiency of the detected spontaneous noise or squeezing spectra.
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Yanne K. Chembo, "Quantum phenomena in ultra-high Q whispering gallery mode resonators and applications to quantum information systems", Proc. SPIE 9762, Advances in Photonics of Quantum Computing, Memory, and Communication IX, 97620P (15 March 2016); doi: 10.1117/12.2212022; https://doi.org/10.1117/12.2212022
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