Intrinsically narrowband pair photon generation in microstructured fibres

A Clark, B Bell, J Fulconis, M M Halder, B Cemlyn, O Alibart, C L Xiong, William Wadsworth, J G Rarity

Research output: Contribution to journalArticlepeer-review

44 Citations (SciVal)


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.
Original languageEnglish
Article number065009
JournalNew Journal of Physics
Publication statusPublished - 20 Jul 2011


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