High-Purity Telecom-Band Entangled Photon-Pairs via Four-Wave Mixing in Dispersion-Shifted Fiber


For many quantum information processing applications it is desirable to produce entangled photon-pairs at telecom wavelengths directly in the fiber by use of the fiber’s Kerr nonlinearity. Our previous works [1] have pointed out that spontaneous Raman scattering, which gives rise to majority of background photons, prevents one from achieving two-photon… (More)

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