Bandwidth limits of luminescent solar concentrators as detectors in free-space optical communication systems

Mark Portnoi; Paul Anthony Haigh; Thomas J. Macdonald; Filip Ambroz; Ivan P. Parkin; Izzat Darwazeh; Ioannis Papakonstantinou

doi:10.1038/s41377-020-00444-y

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Bandwidth limits of luminescent solar concentrators as detectors in free-space optical communication systems

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- Bandwidth limits of luminescent solar concentrators as detectors in free-space optical communication systems
- Light: Science & Applications Vol. 10, Issue 1, Pages: 29-40(2021)
- Affiliations：
  
  1.Photonic Innovations Lab, Department of Electronic and Electrical Engineering, University College London, London WC1E 7JE, UK
  2.School of Engineering, University of Newcastle, Newcastle NE1 7RU, UK
  3.Department of Chemistry, Imperial College London, London W12 0BZ, UK
  4.Department of Chemistry, University College London, London WC1H 0AJ, UK
  5.Department of Electronic and Electrical Engineering, University College London, London
- Author bio：
  
  Ioannis Papakonstantinou (i.papakonstantinou@ucl.ac.uk)
- Funds：
- DOI：10.1038/s41377-020-00444-y
  CLC：
- Published：2021，
  
  Published Online：01 January 2021，
  
  Received：28 July 2020，
  
  Revised：20 October 2020，
  
  Accepted：23 November 2020
- Accepted：
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Portnoi, M. et al. Bandwidth limits of luminescent solar concentrators as detectors in free-space optical communication systems. Light: Science & Applications, 10, 29-40 (2021).
DOI：

Portnoi, M. et al. Bandwidth limits of luminescent solar concentrators as detectors in free-space optical communication systems. Light: Science & Applications, 10, 29-40 (2021). DOI： 10.1038/s41377-020-00444-y.

摘要

Abstract

Luminescent solar concentrators (LSCs) have recently emerged as a promising receiver technology in free-space optical communications due to their inherent ability to collect light from a wide field-of-view and concentrate it into small areas

thus leading to high optical gains. Several high-speed communication systems integrating LSCs in their detector blocks have already been demonstrated

with the majority of efforts so far being devoted to maximising the received optical power and the system's field-of-view. However

LSCs may pose a severe bottleneck on the bandwidth of such communication channels due to the comparably slow timescale of the fluorescence events involved

a situation further aggravated by the inherent reabsorption in these systems

and yet

an in-depth study into such dynamic effects remains absent in the field. To fill this gap

we have developed a comprehensive analytical solution that delineates the fundamental bandwidth limits of LSCs as optical detectors in arbitrary free-space optical links

and establishes their equivalence with simple RC low-pass electrical circuits. Furthermore

we demonstrate a time-domain Monte Carlo simulation platform

an indispensable tool in the multiparameter optimisation of LSC-based receiver systems. Our work offers vital insight into LSC system dynamic behaviour and paves the way to evaluate the technology for a wide range of applications

including visible light communications

high-speed video recording

and real-time biological imaging

to name a few.

关键词

Keywords

references

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