TY - GEN
T1 - Sub-geiger mode single-photon detector using a low-darkcurrent InGaAs avalanche photodiode
AU - Miyamoto, Yoshito
AU - Tsujino, Kenji
AU - Kataoka, Jun
AU - Tomita, Akihisa
PY - 2012/12/1
Y1 - 2012/12/1
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:84893255254
SN - 9781557529503
T3 - European Conference on Optical Communication, ECOC
BT - 2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012
T2 - 2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012
Y2 - 16 September 2012 through 20 September 2012
ER -