Intrinsically narrowband pair photon generation in microstructured fibres

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 entangl...

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Bibliographic Details
Published inNew journal of physics Vol. 13; no. 6; p. 065009
Main Authors Clark, Alex, Bell, Bryn, Fulconis, Jérémie, Halder, Matthäus M, Cemlyn, Ben, Alibart, Olivier, Xiong, Chunle, Wadsworth, William J, Rarity, John G
Format Journal Article
LanguageEnglish
Published IOP Publishing 20.06.2011
Institute of Physics: Open Access Journals
Subjects
Physics
Quantum Physics
quantum information
photon pair
microstructured fibre
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Summary: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.
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/13/6/065009