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Absolute calibration of photodetectors: photocurrent multiplication versus photocurrent subtraction

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Chekhova,  M. V.
Quantum Radiation, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;
Chekhova Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Optical Technologies, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201096

Iskhakov,  T. S.
Optical Technologies, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society;
Quantum Radiation, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Agafonov, I. N., Chekhova, M. V., Iskhakov, T. S., Penin, A. N., Rytikov, G. O., & Shcherbina, O. A. (2011). Absolute calibration of photodetectors: photocurrent multiplication versus photocurrent subtraction. OPTICS LETTERS, 36(8), 1329-1331.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-69FD-5
Abstract
We report testing of the new absolute method of photodetector calibration based on the difference-signal measurement for two-mode squeezed vacuum by comparison with the traditional absolute method based on coincidence counting. Using low-gain parametric downconversion, 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. (c) 2011 Optical Society of America