Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources

2009/01/31 by M. Halder, Matthaeus Halder, Jeremie Fulconis +11 · 2 citations
Engineering · Physics and Astronomy · #Advanced Fiber Optic Sensors #Photonic Crystal and Fiber Optics #Photorefractive and Nonlinear Optics #quant-ph

paper · pdf · doi:10.1364/oe.17.004670

published as Optics Express, Vol. 17, Issue 6, pp. 4670-4676 (2009) · 10 pages, 6 figures

openalex publication_date 2009/03/09 · arxiv created 2009/03/18 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

In this paper, we demonstrate a source of photon pairs based on four-wave-mixing in photonic crystal fibres. Careful engineering of the phase matching conditions in the fibres enables us to create photon pairs at 597 nm and 860 nm in an intrinsically factorable state showing no spectral correlations. This allows for heralding one photon in a pure state and hence renders narrow band filtering obsolete. The source is narrow band, bright and achieves an overall detection efficiency of up to 21% per photon. For the first time, a Hong-Ou-Mandel interference with unfiltered photons from separate fibre sources is presented.

Citations

• A semiconductor source of triggered entangled photon pairs
• Eliminating frequency and space-time correlations in multiphoton states

Cited by

• Programmable photon pair source
• Pure down-conversion photons through sub-coherence-length domain engineering
• Spectrally pure heralded single photons by spontaneous four-wave mixing in a fiber: reducing impact of dispersion fluctuations