期刊
OPTICS EXPRESS
卷 15, 期 20, 页码 12769-12776出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.15.012769
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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 similar to 6 x 10(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. (C) 2007 Optical Society of America.
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