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arXiv · 1102.4415

Intrinsically narrowband pair photon generation in microstructured fibres

Alex Clark·Bryn Bell·Jeremie Fulconis·Matthaeus M. Halder·Ben Cemlyn·Olivier Alibart·Chunle Xiong·William J. Wadsworth·John G. Rarity
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Abstract

In this paper we study the tailoring of photon spectral properties generated by four-wave mixing in a birefringent photonic crystal fibre (PCF). The aim is to produce intrinsically narrow-band photons and hence to achieve high non-classical interference visibility and generate high fidelity entanglement without any requirement for spectral filtering, leading to high effective detection efficiencies. We show unfiltered Hong-Ou-Mandel interference visibilities of 77% between photons from the same PCF, and 80% between separate sources. We compare results from modelling the PCF to these experiments and analyse photon purities.

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Alex Clark, Bryn Bell, Jeremie Fulconis, Matthaeus M. Halder, Ben Cemlyn, Olivier Alibart, Chunle Xiong, William J. Wadsworth, John G. Rarity. 2011-02-22. Intrinsically narrowband pair photon generation in microstructured fibres. https://doi.org/10.1088/1367-2630/13/6/065009

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