Intrinsically narrowband pair photon generation in microstructured fibres

Reference:

Clark, A., Bell, B., Fulconis, J., Halder, M. M., Cemlyn, B., Alibart, O., Xiong, C. L., Wadsworth, W. and Rarity, J. G., 2011. Intrinsically narrowband pair photon generation in microstructured fibres. New Journal of Physics, 13, 065009.

Related documents:

Official URL:

http://dx.doi.org/10.1088/1367-2630/13/6/065009

Related URLs:

• http://dx.doi.org/10.1088/1367-2630/13/6/065009

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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