Resumo

BORDAKEVICH, S.A.; KIELBOWICZ, A.A.; LOPEZ GRANDE, I.H.  e  LAROTONDA, M.A.. Photon counting module based on avalanche photodiodes. An. AFA [online]. 2017, vol.28, n.4, pp.99-105. ISSN 0327-358X.

We report the development and characterization of a photon counting module based on an avalanche photodiode. The device uses an Excelitas C30902SH-DTC silicon avalanche photodiode as the detector, which has a built-in thermoelectric cooler. It includes a high speed active quenching circuit built using fast discrete integrated circuits. The device also includes a standard FC optical fiber connector, that allows to couple the detector to single or multi mode fibers. The maximum achievable count rate achievable is around 500k c/s, with a dark count rate of 1500 c/s and an afterpulsing probability of around 6%. These characteristics were obtained at a detection efficiency comparable to a commercial photon counting module.

Palavras-chave : avalanche photodiode; photon count; active quenching.

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