Sub-Geiger mode single-photon detector using a low-dark-current InGaAs avalanche photodiode

Yoshito Miyamoto, Kenji Tsujino, Jun Kataoka, Akihisa Tomita

研究成果: Conference contribution

抄録

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-dark-current 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.

本文言語English
ホスト出版物のタイトル2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012
出版ステータスPublished - 2012 12月 1
イベント2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012 - Amsterdam, Netherlands
継続期間: 2012 9月 162012 9月 20

出版物シリーズ

名前European Conference on Optical Communication, ECOC

Other

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

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 電子材料、光学材料、および磁性材料

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