Photon pair source based on parametric fluorescence in periodically poled twin-hole silica fiber.
We present observations of quasi-phase matched parametric fluorescence in a periodically poled twin-hole silica fiber. The phase matching condition in the fiber enables the generation of a degenerate signal field in the fiber-optic communication band centered on 1556 nm. We performed coincidence measurements and a Hong-Ou-Mandel experiment to validate that the signal arises from photon pairs. A coincidence peak with a signal to noise ratio (SNR) of 4 using 43 mW of pump power and a Hong-Ou-Mandel dip showing 40% net visibility were measured. Moreover, the experiments were performed with standard single mode fibers spliced at both ends of the poled section, which makes this source easy to integrate in fiber-optic quantum communication applications.
Phan Huy
Kien
K
Service d'Optique et Acoustique, Université Libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 194/5, 1050 Bruxelles, Belgium. kphanhuy@ulb.ac.be
Nguyen
Anh Tuan
AT
Brainis
Edouard
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Haelterman
Marc
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Emplit
Philippe
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Corbari
Costantino
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Canagasabey
Albert
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Kazansky
Peter G
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Deparis
Olivier
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Fotiadi
Andrei A
AA
Mégret
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Massar
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