A fiber-coupled quantum-dot on a photonic tip

Davide Cadeddu, Jean Teissier, Floris R. Braakman, Niels Gregersen, Petr Stepanov, Jean Michel Gérard, Julien Claudon, Richard J. Warburton, Martino Poggio, Mathieu Munsch

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We present the experimental realization of a quantum fiber-pigtail. The device consists of a semiconductor quantum-dot embedded into a conical photonic wire that is directly connected to the core of a fiber-pigtail. We demonstrate a photon collection efficiency at the output of the fiber of 5.8% and suggest realistic improvements for the implementation of a useful device in the context of quantum information. We also discuss potential applications in scanning probe microscopy. The approach is generic and transferable to other materials including diamond and silicon.
Original languageEnglish
Article number011112
JournalApplied Physics Letters
Number of pages5
Publication statusPublished - 2016


  • Physics and Astronomy (miscellaneous)
  • Fiber optic chemical sensors
  • Fibers
  • Nanocrystals
  • Optical waveguides
  • Quantum optics
  • Scanning probe microscopy
  • Experimental realizations
  • Fiber coupled
  • Fiber pigtails
  • Of quantum-information
  • Photon collection
  • Photonic wires
  • Semiconductor quantum dots

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