Title :
Polarisation-entangled photon-pair source at 1550nm using 1 mm-long PPLN waveguide in fibre-loop configuration
Author :
Odate, S. ; Yoshizawa, A. ; Tsuchida, H.
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol. (AIST), Tsukuba
Abstract :
A source of polarisation-entangled photons that uses the spontaneous parametric downconversion process in the telecommunication wavelength band is reported. A 1 mm-long periodically poled lithium niobate waveguide was placed in a fibre loop to realise spontaneous parametric downconversion, and it was operated at room temperature. Two-photon interferences having visibilities greater than 84% before subtraction of accidental coincidence counts were observed.
Keywords :
light polarisation; light sources; optical waveguides; photons; fibre loop; periodically poled lithium niobate waveguide; polarisation-entangled photon source; spontaneous parametric downconversion process; telecommunication wavelength band; wavelength 1550 nm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20071590
