High-Resolution Measurement of Energy Correlations of Photon Pairs Generated in Silicon Ring Resonators
Simbula, A;
2015-01-01
Abstract
Silicon micro-ring resonators have been demonstrated to be potential "on-chip" efficient sources of time-energy entangled photons. In these devices, photon pairs are generated by spontaneous four-wave-mixing (SFWM), an elastic scattering event involving two pump photons that results in the generation of an idler and a signal photon. The mass production of such integrated devices for quantum optic experiment requires the implementation of fast and reliable techniques to monitor the emitted two-photon state as well as the device performances. In this work we show that the joint spectral density of photon pairs that would be generated by SFWM in a silicon ring resonator can be measured with unprecedented resolution and speed, improving of several orders of magnitudes the results of traditional approaches based on coincidence measurements.File | Dimensione | Formato | |
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