Photon counting fibre optic distributed temperature sensing with a CMOS SPAD array

Caitlin S. Tye; Katjana Ehrlich; Andrew D. M. Green; Robert K. Henderson; Michael G. Tanner

doi:10.1364/OE.506964

Photon counting fibre optic distributed temperature sensing with a CMOS SPAD array

Caitlin S. Tye, Katjana Ehrlich, Andrew D. M. Green, Robert K. Henderson, Michael G. Tanner

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Abstract

Time-resolved fibre optic Raman distributed temperature sensing (DTS) measurements experience long measurement times due to a weak backscattered Raman signal inside optical fibres or limited detector count rates. Here, improvements to previous work based on individual detectors are demonstrated using a 512 pixel complementary-metal-oxide semiconductor (CMOS) single-photon avalanche diode (SPAD) line sensor array with integrated (on-chip) timing electronics. Multiplexed single photon counting increases count rate and decreases measurement time for practical applications. This allows temperature to be measured every 0.5 m with 0.7 °C accuracy and a 10 s measurement time using a 13.0 m optical fibre, performance over longer distance is also investigated.

Original language	English
Pages (from-to)	6481-6493
Number of pages	13
Journal	Optics Express
Volume	32
Issue number	4
Early online date	8 Feb 2024
DOIs	https://doi.org/10.1364/OE.506964
Publication status	Published - 12 Feb 2024

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title = "Photon counting fibre optic distributed temperature sensing with a CMOS SPAD array",

abstract = "Time-resolved fibre optic Raman distributed temperature sensing (DTS) measurements experience long measurement times due to a weak backscattered Raman signal inside optical fibres or limited detector count rates. Here, improvements to previous work based on individual detectors are demonstrated using a 512 pixel complementary-metal-oxide semiconductor (CMOS) single-photon avalanche diode (SPAD) line sensor array with integrated (on-chip) timing electronics. Multiplexed single photon counting increases count rate and decreases measurement time for practical applications. This allows temperature to be measured every 0.5 m with 0.7 °C accuracy and a 10 s measurement time using a 13.0 m optical fibre, performance over longer distance is also investigated.",

author = "Tye, \{Caitlin S.\} and Katjana Ehrlich and Green, \{Andrew D. M.\} and Henderson, \{Robert K.\} and Tanner, \{Michael G.\}",

note = "Funding Information: Funding. Engineering and Physical Sciences Research Council (EP/K03197X/1, EP/P027415/1, EP/R005257/1, EP/V006185/1). Funding Information: Acknowledgments. We thank the EPSRC IRC Proteus (EP/K03197X/1, EP/R005257/1) for the CMOS SPAD line sensor and funding. CST is funded via an EPSRC DTP at Heriot-Watt University, KE is funded via EP/V006185/1, ADMG acknowledges (EP/P027415/1). We thank Theo Moran of Alleyn{\textquoteright}s School, London, for practical assistance in the experiment for Fig. 6. Publisher Copyright: {\textcopyright} 2024 Optica Publishing Group (formerly OSA). All rights reserved.",

year = "2024",

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doi = "10.1364/OE.506964",

language = "English",

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T1 - Photon counting fibre optic distributed temperature sensing with a CMOS SPAD array

AU - Tye, Caitlin S.

AU - Ehrlich, Katjana

AU - Green, Andrew D. M.

AU - Henderson, Robert K.

AU - Tanner, Michael G.

N1 - Funding Information: Funding. Engineering and Physical Sciences Research Council (EP/K03197X/1, EP/P027415/1, EP/R005257/1, EP/V006185/1). Funding Information: Acknowledgments. We thank the EPSRC IRC Proteus (EP/K03197X/1, EP/R005257/1) for the CMOS SPAD line sensor and funding. CST is funded via an EPSRC DTP at Heriot-Watt University, KE is funded via EP/V006185/1, ADMG acknowledges (EP/P027415/1). We thank Theo Moran of Alleyn’s School, London, for practical assistance in the experiment for Fig. 6. Publisher Copyright: © 2024 Optica Publishing Group (formerly OSA). All rights reserved.

PY - 2024/2/12

Y1 - 2024/2/12

N2 - Time-resolved fibre optic Raman distributed temperature sensing (DTS) measurements experience long measurement times due to a weak backscattered Raman signal inside optical fibres or limited detector count rates. Here, improvements to previous work based on individual detectors are demonstrated using a 512 pixel complementary-metal-oxide semiconductor (CMOS) single-photon avalanche diode (SPAD) line sensor array with integrated (on-chip) timing electronics. Multiplexed single photon counting increases count rate and decreases measurement time for practical applications. This allows temperature to be measured every 0.5 m with 0.7 °C accuracy and a 10 s measurement time using a 13.0 m optical fibre, performance over longer distance is also investigated.

AB - Time-resolved fibre optic Raman distributed temperature sensing (DTS) measurements experience long measurement times due to a weak backscattered Raman signal inside optical fibres or limited detector count rates. Here, improvements to previous work based on individual detectors are demonstrated using a 512 pixel complementary-metal-oxide semiconductor (CMOS) single-photon avalanche diode (SPAD) line sensor array with integrated (on-chip) timing electronics. Multiplexed single photon counting increases count rate and decreases measurement time for practical applications. This allows temperature to be measured every 0.5 m with 0.7 °C accuracy and a 10 s measurement time using a 13.0 m optical fibre, performance over longer distance is also investigated.

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JF - Optics Express

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Photon counting fibre optic distributed temperature sensing with a CMOS SPAD array

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