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The joint spectra of the two type-II phase-matchings that add coherently to give rise to the generation of polarization-entangled photon pairs in a poled fiber are measured. Optimal parameters are identified for the generation of high-quality entanglement.
A multi-party quantum key distribution scheme is experimentally demonstrated by utilizing a poled fiber-based broadband polarization-entangled source and dense wavelength-division multiplexing. Entangled photon pairs are delivered over 40-km of fiber, with secure key rates of more than 20 bits/s observed.
Birefringence in poled fiber enables the direct (compensation-free) generation of broadband polarization-entangled photon pairs. However, birefringence and pump detuning also affect the entangled state, a subject we investigate in this work theoretically and experimentally.
By leveraging on the wealth of Si-CMOS technology know-how and the largely available infrastructures, the fundamental photonic device building blocks and circuit integration platform, essential for the realization of the electronic-photonic integrated circuit (EPIC), have been successfully developed. This presentation gives an overview on the current status of this critical technology and provides...
We report photon-pair generation at the 1.5-μm telecom band via continuous-wave type-II parametric downconversion in a birefringent periodically-poled silica fiber. The time- and polarization-correlations of the downconverted light are examined.
By leveraging on the wealth of Si-CMOS technology know-how and the largely available infrastructures, the fundamental photonic device building blocks and circuit integration platform, essential for the realization of the electronic-photonic integrated circuit (EPIC), have been successfully developed. This presentation gives an overview on the current status of this critical technology and provides...
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