Non-classical interference in integrated 3D multiports
arXiv:1208.4154 · doi:10.1364/OE.20.026895
Abstract
We demonstrate three and four input multiports in a three dimensional glass platform, fabricated using the femtosecond laser direct-write technique. Hong-Ou-Mandel (HOM) interference is observed and a full quantum characterisation is performed, obtaining two photon correlation matrices for all combinations of input and output ports. For the three-port case, the quantum visibilities are accurately predicted solely from measurement of the classical coupling ratios.
10 pages, 16 figures, journal article
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