Using sum-frequency generation we fully up-convert signal photons at 1550 nm to 775 nm. Due to coupling and filtering losses at the output, overall quantum efficiency is ~3.4% with dark-count probability of 3%.
© 2005 Optical Society of America
S. W. Dugan, X. Li, P. L. Voss, and P. Kumar, "Frequency Up-Conversion at the Single-Photon Level in a Periodically-Poled Lithium Niobate Waveguide," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper QThJ2.
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