Generation of high-purity entangled photon pairs using silicon wire waveguide | Zendy

K. Harada | Zendy; Hiroki Takesue | Zendy; Hiroshi Fukuda | Zendy; Tai Tsuchizawa | Zendy; Toshifumi Watanabe | Zendy; Koji Yamada | Zendy; Y. Tokura | Zendy; Sei-ichi Itabashi | Zendy

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Generation of high-purity entangled photon pairs using silicon wire waveguide

Author(s) -

K. Harada,

Hiroki Takesue,

Hiroshi Fukuda,

Tai Tsuchizawa,

Toshifumi Watanabe,

Koji Yamada,

Y. Tokura,

Sei-ichi Itabashi

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.020368

Subject(s) - optics , photon , physics , silicon , coincidence counting , waveguide , dispersion (optics) , coincidence , four wave mixing , visibility , photon entanglement , interference (communication) , bin , materials science , optoelectronics , quantum entanglement , nonlinear optics , laser , telecommunications , quantum mechanics , quantum , medicine , alternative medicine , pathology , channel (broadcasting) , algorithm , computer science

We observed high-purity correlated and entangled photon pairs generated through spontaneous four-wave mixing (SFWM) in a silicon wire waveguide (SWW). Employing a nano-scale silicon waveguide with a low loss mode size converter, we obtained a high coincidence to accidental coincidence ratio (CAR) of around 200 that was larger than that of cooled dispersion shifted fiber (DSF) by a factor 3.2, and observed the two-photon interference fringe of time-bin entangled photons with > 95% visibility without subtracting the accidental coincidences.

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