Abstract.
A multichannel detector has been constructed using a single avalanche photodiode and a fiber-loop delay line. Detection probabilities of the channels can be set using a variable-ratio coupler. The performance of the detector is demonstrated on its capability to distinguish multi-photon states (containing two or more photons) from the one-photon state and the vacuum state.
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Received: 16 July 2003, Published online: 14 October 2003
PACS:
42.50.Dv Nonclassical states of the electromagnetic field, including entangled photon states; quantum state engineering and measurements - 03.67.Hk Quantum communication
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Haderka, O., Hamar, M. & Jr, J.P. Experimental multi-photon-resolving detector using a single avalanche photodiode. Eur. Phys. J. D 28, 149–154 (2004). https://doi.org/10.1140/epjd/e2003-00287-1
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DOI: https://doi.org/10.1140/epjd/e2003-00287-1