Experimental demonstration of a predictable single photon source with variable photon flux

Aigar Vaigu (Corresponding Author), Geiland Porrovecchio, Xiao-Liu Chu, Sarah Lindner, Marek Smid, Albert Manninen, Christoph Becher, Vahid Sandoghdar, Stephan Götzinger, Erkki Ikonen

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

We present a predictable single-photon source (SPS) based on a silicon vacancy centre in nanodiamond which is optically excited by a pulsed laser. At an excitation rate of 70 MHz the source delivers a photon flux large enough to be measured by a low optical flux detector (LOFD). The directly measured photon flux constitutes an absolute reference. By changing the repetition rate of the pulsed laser, we are able to change the photon flux of our SPS in a controllable way which in turn can act as a reference. The advantage of our method is that it does not require precise knowledge of the source efficiency, but the source is calibrated by the LOFD and can be used for detector responsivity characterizations at the few-photon level.
Original languageEnglish
Pages (from-to)218-223
Number of pages6
JournalMetrologia
Volume54
Issue number2
DOIs
Publication statusPublished - 21 Mar 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • low optical flux detector
  • photon on demand
  • silicon vacancy centrer
  • single photon metrology
  • single photon sources

Fingerprint Dive into the research topics of 'Experimental demonstration of a predictable single photon source with variable photon flux'. Together they form a unique fingerprint.

  • Cite this

    Vaigu, A., Porrovecchio, G., Chu, X-L., Lindner, S., Smid, M., Manninen, A., Becher, C., Sandoghdar, V., Götzinger, S., & Ikonen, E. (2017). Experimental demonstration of a predictable single photon source with variable photon flux. Metrologia, 54(2), 218-223. https://doi.org/10.1088/1681-7575/aa5ba2