Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources
Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources
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DOI：
10.1364/oe.17.004670
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发表时间：
2009-03-16
期刊：
影响因子：
3.8
通讯作者：
Rarity, J. G.
中科院分区：
文献类型：
--
作者：
Halder, M.;Fulconis, J.;Rarity, J. G.
在本文中，我们展示了一种基于光子晶体光纤中四波混频的光子对的来源。精心设计光纤中的相位匹配条件，使我们能够在597 nm和860 nm的本征可因式分解状态下创建光子对，而不显示任何光谱相关性。这允许一个光子处于纯态，并因此使窄带滤波过时。光源窄带、明亮，每个光子的总探测效率高达21%。首次提出了来自不同光纤源的未过滤光子的Hong-Ou-Mandel干涉。(C)2009年美国光学学会
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. (C) 2009 Optical Society of America