Poissonian communications: free space optical data transfer at the few-photon level

Research output: Working paper

Abstract

Communicating information at the few photon level typically requires some complexity in the transmitter or receiver in order to operate in the presence of noise. This in turn incurs expense in the necessary spatial volume and power consumption of the system. In this work we present a self-synchronised free-space optical communications system based on simple, compact and low power consumption semiconductor devices. A temporal encoding method, implemented using a gallium nitride micro-LED source and a silicon single photon avalanche photo-detector (SPAD) demonstrates data transmission at rates up to 100 kb/s for 8.25 pW received power, corresponding to 27 photons per bit. Furthermore, the signals can be decoded in the presence of both constant and modulated background noise at levels significantly exceeding the signal power. The systems low power consumption and modest electronics requirements are demonstrated employing it as a communications channel between two nano-satellite simulator systems.
LanguageEnglish
Place of PublicationIthaca, NY
Number of pages19
Publication statusPublished - 24 Jan 2018

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free-space optical communication
photons
communicating
gallium nitrides
background noise
data transmission
semiconductor devices
avalanches
transmitters
simulators
telecommunication
coding
light emitting diodes
receivers
communication
requirements
detectors
silicon
electronics

Keywords

  • optical wireless communication
  • light emitting diode
  • single photon avalanche photodetector

Cite this

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title = "Poissonian communications: free space optical data transfer at the few-photon level",
abstract = "Communicating information at the few photon level typically requires some complexity in the transmitter or receiver in order to operate in the presence of noise. This in turn incurs expense in the necessary spatial volume and power consumption of the system. In this work we present a self-synchronised free-space optical communications system based on simple, compact and low power consumption semiconductor devices. A temporal encoding method, implemented using a gallium nitride micro-LED source and a silicon single photon avalanche photo-detector (SPAD) demonstrates data transmission at rates up to 100 kb/s for 8.25 pW received power, corresponding to 27 photons per bit. Furthermore, the signals can be decoded in the presence of both constant and modulated background noise at levels significantly exceeding the signal power. The systems low power consumption and modest electronics requirements are demonstrated employing it as a communications channel between two nano-satellite simulator systems.",
keywords = "optical wireless communication, light emitting diode, single photon avalanche photodetector",
author = "Griffiths, {Alexander D.} and Johannes Herrnsdorf and Christopher Lowe and Malcolm Macdonald and Robert Henderson and Strain, {Michael J.} and Dawson, {Martin D.}",
note = "19 pages, 4 figures, additional supplemetary document",
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TY - UNPB

T1 - Poissonian communications

T2 - free space optical data transfer at the few-photon level

AU - Griffiths, Alexander D.

AU - Herrnsdorf, Johannes

AU - Lowe, Christopher

AU - Macdonald, Malcolm

AU - Henderson, Robert

AU - Strain, Michael J.

AU - Dawson, Martin D.

N1 - 19 pages, 4 figures, additional supplemetary document

PY - 2018/1/24

Y1 - 2018/1/24

N2 - Communicating information at the few photon level typically requires some complexity in the transmitter or receiver in order to operate in the presence of noise. This in turn incurs expense in the necessary spatial volume and power consumption of the system. In this work we present a self-synchronised free-space optical communications system based on simple, compact and low power consumption semiconductor devices. A temporal encoding method, implemented using a gallium nitride micro-LED source and a silicon single photon avalanche photo-detector (SPAD) demonstrates data transmission at rates up to 100 kb/s for 8.25 pW received power, corresponding to 27 photons per bit. Furthermore, the signals can be decoded in the presence of both constant and modulated background noise at levels significantly exceeding the signal power. The systems low power consumption and modest electronics requirements are demonstrated employing it as a communications channel between two nano-satellite simulator systems.

AB - Communicating information at the few photon level typically requires some complexity in the transmitter or receiver in order to operate in the presence of noise. This in turn incurs expense in the necessary spatial volume and power consumption of the system. In this work we present a self-synchronised free-space optical communications system based on simple, compact and low power consumption semiconductor devices. A temporal encoding method, implemented using a gallium nitride micro-LED source and a silicon single photon avalanche photo-detector (SPAD) demonstrates data transmission at rates up to 100 kb/s for 8.25 pW received power, corresponding to 27 photons per bit. Furthermore, the signals can be decoded in the presence of both constant and modulated background noise at levels significantly exceeding the signal power. The systems low power consumption and modest electronics requirements are demonstrated employing it as a communications channel between two nano-satellite simulator systems.

KW - optical wireless communication

KW - light emitting diode

KW - single photon avalanche photodetector

UR - https://arxiv.org/abs/1801.07994v1

M3 - Working paper

BT - Poissonian communications

CY - Ithaca, NY

ER -