Measurement of coupling PDC photon sources with single-mode and multimode optical fibers

Stefania A. Castelletto; Ivo Pietro Degiovanni; Alan Migdall; Valentina Schettini; Michael Ware

doi:10.1117/12.561831

19 October 2004 Measurement of coupling PDC photon sources with single-mode and multimode optical fibers

Stefania A. Castelletto, Ivo Pietro Degiovanni, Alan Migdall, Valentina Schettini, Michael Ware

Proceedings Volume 5551, Quantum Communications and Quantum Imaging II; (2004) https://doi.org/10.1117/12.561831
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

We investigate the coupling efficiency of parametric downconversion light (PDC) into single and multi-mode optical fibers as a function of the pump beam diameter, crystal length and walk-off. We outline two different theoretical models for the preparation and collection of either single-mode or multi-mode PDC light (defined by, for instance, multi-mode fibers or apertures, corresponding to bucket detection). Moreover, we define the mode-matching collection efficiency, important for realizing a single-photon source based on PDC output into a well-defined single spatial mode. We also define a multimode collection efficiency that is useful for single-photon detector calibration applications.

Citation Download Citation

Stefania A. Castelletto, Ivo Pietro Degiovanni, Alan Migdall, Valentina Schettini, and Michael Ware "Measurement of coupling PDC photon sources with single-mode and multimode optical fibers", Proc. SPIE 5551, Quantum Communications and Quantum Imaging II, (19 October 2004); https://doi.org/10.1117/12.561831

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