High efficiency coupling of photon pairs in practice

Anno: 2013

Autori: Guerreiro T., Martin A., Sanguinetti B., Bruno N., Zbinden H., Thew R.T.

Affiliazione autori: Univ Geneva, Appl Phys Grp, CH-1211 Geneva 4, Switzerland.

Abstract: Multi-photon and quantum communication experiments such as loophole-free Bell tests and device independent quantum key distribution require entangled photon sources which display high coupling efficiency. In this paper we put forward a simple quantum theoretical model which allows the experimenter to design a source with high pair coupling efficiency. In particular we apply this approach to a situation where high coupling has not been previously obtained: we demonstrate a symmetric coupling efficiency of more than 80% in a highly frequency non-degenerate configuration. Furthermore, we demonstrate this technique in a broad range of configurations, i.e. in continuous wave and pulsed pump regimes, and for different nonlinear crystals. (C) 2013 Optical Society of America

Giornale/Rivista: OPTICS EXPRESS

Volume: 21 (23)      Da Pagina: 27641  A: 27651

Maggiori informazioni: We are thankful to Andre Stefanov for helpful discussions. This work was supported by the Swiss National Centre of Competence in Research Quantum Science and Technology (QSIT) project.
Parole chiavi: Single-mode
DOI: 10.1364/OE.21.027641

Citazioni: 34
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-06-29
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