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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Multiplexed single-mode wavelength-to-time mapping of multimode light.

Harikumar K Chandrasekharan1,2, Frauke Izdebski1, Itandehui Gris-Sánchez3

  • 1Scottish Universities Physics Alliance (SUPA), Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.

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Summary

Researchers developed a new method for wavelength-to-time mapping using multicore fibre photonic lanterns. This technique efficiently converts light wavelength into timing information for multimode light, enabling new applications.

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Area of Science:

  • Optics and Photonics
  • Optical Communications

Background:

  • Wavelength-to-time mapping converts optical wavelength into arrival time, typically observed in single-mode fibers.
  • Single-mode fibers limit applications due to their restrictive nature.

Purpose of the Study:

  • To demonstrate efficient multimode wavelength-to-time mapping using photonic lanterns.
  • To overcome the application limitations of single-mode fiber systems.

Main Methods:

  • Utilized multicore fiber photonic lanterns to couple multimode light to an array of single-photon avalanche detectors.
  • Employed time-correlated single-photon counting with time-to-digital converters for each detector.

Main Results:

  • Successfully demonstrated multiplexed single-mode wavelength-to-time mapping of multimode light.
  • Achieved this using a 121-core fiber photonic lantern coupled to 121 detectors.

Conclusions:

  • Photonic lanterns enable efficient multimode wavelength-to-time mapping.
  • This approach offers the spectral performance of single-mode systems for multimode applications.