Sub-geiger mode single-photon detector using a low-darkcurrent InGaAs avalanche photodiode

Yoshito Miyamoto, Kenji Tsujino, Jun Kataoka, Akihisa Tomita

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    We have developed a single-photon detector that uses an InGaAs avalanche photodiode (APD) operating in sub-Geiger mode. Sub-Geiger mode operation is a technique in which an APD is operated at a bias voltage that is lower than the breakdown voltage. This mode considerably reduces afterpulse probability, and single photons that arrive randomly can be detected. In the present study, we reduced the dark count rate of the sub-Geiger mode single-photon detector by using a low-darkcurrent InGaAs APD. Consequently, we obtained a dark count rate (DCR) of 5.6 counts per second (cps) with single-photon detection efficiency (SPDE) of 0.2%. Our single-photon detector is comparable in DCR to that of superconducting nanowire single-photon detectors.

    Original languageEnglish
    Title of host publicationEuropean Conference on Optical Communication, ECOC
    Publication statusPublished - 2012
    Event2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012 - Amsterdam
    Duration: 2012 Sep 162012 Sep 20

    Other

    Other2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012
    CityAmsterdam
    Period12/9/1612/9/20

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    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials

    Cite this

    Miyamoto, Y., Tsujino, K., Kataoka, J., & Tomita, A. (2012). Sub-geiger mode single-photon detector using a low-darkcurrent InGaAs avalanche photodiode. In European Conference on Optical Communication, ECOC