Two-Photon Polarization Interference for Pulsed SPDC in a PPKTP Waveguide
classification
🪐 quant-ph
keywords
interferencepolarizationspdcspectralstructuretwo-photonamplitudeanalysis
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We study the spectral properties of Spontaneous Parametric Down Conversion in a periodically poled waveguided structure of KTP crystal pumped by ultra-short pulses. Our theoretical analysis reveals a strongly multimode and asymmetric structure of the two-photon spectral amplitude for type-II SPDC. Experimental evidence, based on Hong-Ou-Mandel polarization interference with narrowband filtering, confirms this result.
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