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arXiv · 1012.3248

Absolute calibration of photodetectors: photocurrent multiplication versus photocurrent subtraction

I. N. Agafonov·M. V. Chekhova·T. Sh. Iskhakov·A. N. Penin·G. O. Rytikov·O. A. Shumilkina
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Abstract

We report testing of the new absolute method of photodetectors calibration based on the difference-signal measurement for two-mode squeezed vacuum by comparison with the traditional absolute method based on the coincidence counting. Using low-gain parametric down conversion we have measured the quantum efficiency of a counting detector by both methods. The difference-signal method was adapted for the counting detectors by taking into account the dead-time effect.

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I. N. Agafonov, M. V. Chekhova, T. Sh. Iskhakov, A. N. Penin, G. O. Rytikov, O. A. Shumilkina. 2010-12-15. Absolute calibration of photodetectors: photocurrent multiplication versus photocurrent subtraction. https://doi.org/10.1364/ol.36.001329

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