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Multiplexed single-mode wavelength-to-time mapping of multimode light

Author

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  • Harikumar K Chandrasekharan

    (Scottish Universities Physics Alliance (SUPA), Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University
    Institute of Biological Chemistry, Biophysics and Bioengineering, School of Engineering and Physical Sciences, Heriot-Watt University)

  • Frauke Izdebski

    (Scottish Universities Physics Alliance (SUPA), Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University)

  • Itandehui Gris-Sánchez

    (University of Bath, Claverton Down)

  • Nikola Krstajić

    (Institute for Integrated Micro and Nano Systems, School of Engineering, University of Edinburgh)

  • Richard Walker

    (Institute for Integrated Micro and Nano Systems, School of Engineering, University of Edinburgh
    Present address: Photon Force Ltd, Edinburgh EH3 7HA, UK)

  • Helen L. Bridle

    (Institute of Biological Chemistry, Biophysics and Bioengineering, School of Engineering and Physical Sciences, Heriot-Watt University)

  • Paul A. Dalgarno

    (Institute of Biological Chemistry, Biophysics and Bioengineering, School of Engineering and Physical Sciences, Heriot-Watt University)

  • William N. MacPherson

    (Scottish Universities Physics Alliance (SUPA), Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University)

  • Robert K. Henderson

    (Institute for Integrated Micro and Nano Systems, School of Engineering, University of Edinburgh)

  • Tim A. Birks

    (University of Bath, Claverton Down)

  • Robert R. Thomson

    (Scottish Universities Physics Alliance (SUPA), Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University)

Abstract

When an optical pulse propagates along an optical fibre, different wavelengths travel at different group velocities. As a result, wavelength information is converted into arrival-time information, a process known as wavelength-to-time mapping. This phenomenon is most cleanly observed using a single-mode fibre transmission line, where spatial mode dispersion is not present, but the use of such fibres restricts possible applications. Here we demonstrate that photonic lanterns based on tapered single-mode multicore fibres provide an efficient way to couple multimode light to an array of single-photon avalanche detectors, each of which has its own time-to-digital converter for time-correlated single-photon counting. Exploiting this capability, we demonstrate the multiplexed single-mode wavelength-to-time mapping of multimode light using a multicore fibre photonic lantern with 121 single-mode cores, coupled to 121 detectors on a 32 × 32 detector array. This work paves the way to efficient multimode wavelength-to-time mapping systems with the spectral performance of single-mode systems.

Suggested Citation

  • Harikumar K Chandrasekharan & Frauke Izdebski & Itandehui Gris-Sánchez & Nikola Krstajić & Richard Walker & Helen L. Bridle & Paul A. Dalgarno & William N. MacPherson & Robert K. Henderson & Tim A. Bi, 2017. "Multiplexed single-mode wavelength-to-time mapping of multimode light," Nature Communications, Nature, vol. 8(1), pages 1-10, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14080
    DOI: 10.1038/ncomms14080
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