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APS » Journals » Phys. Rev. A » Volume 67 » Issue 6
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Phys. Rev. A 67, 061801(R) (2003) [4 pages]

Multiple-photon resolving fiber-loop detector

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J. Řeháček and Z. Hradil
Department of Optics, Palacky University, 17 Listopadu 50, 772 00 Olomouc, Czech Republic

O. Haderka, J. Peřina, Jr., and M. Hamar
Joint Laboratory of Palacky University and the Institute of Physics of the Czech Academy of Sciences, 17 Listopadu 50, 772 00 Olomouc, Czech Republic

Received 27 March 2003; published 30 June 2003

We show first reconstructions of the photon-number distribution obtained with a multichannel fiber-loop detector. Apart from analyzing the statistics of light pulses this device can serve as a sophisticated postselection device for experiments in quantum optics and quantum information. We quantify its efficiency by means of the Fisher information and compare it to the efficiency of the ideal photodetector.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.061801
DOI:
10.1103/PhysRevA.67.061801
PACS:
42.50.Ar, 03.67.-a, 42.81.Qb, 85.60.Gz
 
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