Abstract

We propose a design for a photon-counting detector that is capable of resolving multiphoton events. The basic element of the setup is a fiber loop, which traps the input field with the help of a fast electro-optic switch. A single weakly coupled avalanche photodiode is used to detect small portions of the signal field extracted from the loop. We analyze the response of the loop detector to an arbitrary input field and discuss both the reconstruction of the photon-number distribution of an unknown field from the count statistics measured in the setup and the application of the detector in conditional-state preparation.

© 2003 Optical Society of America

Fiber-assisted detection with photon number resolution

Daryl Achilles, Christine Silberhorn, Cezary Śliwa, Konrad Banaszek, and Ian A. Walmsley
Opt. Lett. 28(23) 2387-2389 (2003)

Single-photon detector for long-distance fiber-optic quantum key distribution

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Balanced, gated-mode photon detector for quantum-bit discrimination at 1550 nm

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Photostatistics Reconstruction via Loop Detector Signatures.

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1.5 μm photon-counting optical time-domain reflectometry with a single-photon detector based on upconversion in a periodically poled lithium niobate waveguide

Eleni Diamanti, Carsten Langrock, M. M. Fejer, Yoshihisa Yamamoto, and Hiroki Takesue
Opt. Lett. 31(6) 727-729 (2006)