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- W3196719911 abstract "The capacity of optical communication channels can be increased by space division multiplexing in structured optical fibers. Radial core optical fibers allows for the propagation of twisted light--eigenmodes of orbital angular momentum, which have attracted considerable attention for high-dimensional quantum information. Here we study the generation of entangled photons that are tailor-made for coupling into ring core optical fibers. We show that the coupling of photon pairs produced by parametric down-conversion can be increased by close to a factor of three by pumping the non-linear crystal with a perfect vortex mode with orbital angular momentum $ell$, rather than a gaussian mode. Moreover, the two-photon orbital angular momentum spectrum has a nearly constant shape. This provides an interesting scenario for quantum state engineering, as pumping the crystal with a superposition of perfect vortex modes can be used in conjunction with the mode filtering properties of the ring core fiber to produce simple and interesting quantum states." @default.
- W3196719911 created "2021-09-13" @default.
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- W3196719911 date "2021-09-07" @default.
- W3196719911 modified "2023-09-27" @default.
- W3196719911 title "Engineering entangled photons for transmission in ring-core optical fibers" @default.
- W3196719911 doi "https://doi.org/10.48550/arxiv.2109.03064" @default.
- W3196719911 hasPublicationYear "2021" @default.
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