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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1991),
  • paper CThR35

Absolute measurement of quantum efficiency of photodetectors using nonclassical optical fields

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A new technique of measuring absolute quantum efficiency of single-photon detectors in a broad spectral range without a calibrated standard light source is reported. The new technique is based on nonclassical statistics of photons in the nonlinear process of spontaneous parametric downconversion.

© 1991 Optical Society of America

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