Bright narrowband source of photon pairs at optical telecommunication wavelengths using a type-II periodically poled lithium niobate waveguide | Zendy

Go Fujii | Zendy; Naoto Namekata | Zendy; Masayuki Motoya | Zendy; Sunao Kurimura | Zendy; Shuichiro Inoue | Zendy

Open Access

Bright narrowband source of photon pairs at optical telecommunication wavelengths using a type-II periodically poled lithium niobate waveguide

Author(s) -

Go Fujii,

Naoto Namekata,

Masayuki Motoya,

Sunao Kurimura,

Shuichiro Inoue

Publication year - 2007

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.15.012769

Subject(s) - lithium niobate , optics , narrowband , physics , spontaneous parametric down conversion , photon , quasi phase matching , waveguide , nonlinear optics , brightness , optoelectronics , laser , quantum mechanics , quantum entanglement , quantum

We report on the generation of narrowband photon pairs at telecommunication wavelengths using a periodically poled lithium niobate waveguide that utilizes the nonlinear tensor element d(24) for type-II quasi phase matching. The FWHM bandwidth of the spontaneous parametric downconversion was 1 nm. The brightness of the photon pair source was ~6x10(5)/s/GHz when the pump power was 1 mW. The indistinguishability of the signal and idler photons generated by the degenerate spontaneous parametric downconversion process was studied in a Hong-Ou-Mandel type interference experiment.

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