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

@article{Fujii2007BrightNS,
  title={Bright narrowband source of photon pairs at optical telecommunication wavelengths using a type-II periodically poled lithium niobate waveguide.},
  author={Go Fujii and Naoto Namekata and Masayuki Motoya and Sunao Kurimura and Shuichiro Inoue},
  journal={Optics express},
  year={2007},
  volume={15 20},
  pages={12769-76}
}
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… CONTINUE READING
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