Design of fibre laser and sensor systems for gas spectroscopy in the near-IR

G. Stewart, G.L. Whitenett, P. Shields, J. Marshall, B. Culshaw

Research output: Contribution to conferencePaper

9 Citations (Scopus)

Abstract

Because of the ready availability of fibre optic components from the communications industry, fibre optic systems operating in the near-IR are well suited for remote, multi-point monitoring of hazardous and environmentally-important gases. However a number of challenges have to be met in order exploit the potential commercial opportunities and applications for such sensors. Here we review our research on gas sensors based on fibre laser systems and absorption spectroscopy. Fibre lasers are of particular interest for sensors since on-going developments have extended their wavelength range of operation over similar to1480-1620nm, encompassing the near-IR absorption lines of numerous gases. We discuss several configurations for fibre laser systems which offer the prospect of either enhanced performance or the possibility of multiplexing a number of sensor cells. However, because gas absorption lines in the near-IR spectral region are relatively weak, high sensitivity techniques are required for a number of species and we discuss methods for path-length enhancement through ring-down and intra-cavity absorption spectroscopy. Effective interrogation methods are required to attain the benefits of the various forms of cavity-enhanced spectroscopy in fibre optic systems and several techniques are under investigation to realise this potential.

Conference

ConferenceConference on Industrial and Highway Sensors Technology
CountryUnited States
CityProvidence
Period28/10/0330/10/03

Fingerprint

gas spectroscopy
fiber lasers
fiber optics
sensors
gases
absorption spectroscopy
cavities
interrogation
multiplexing
spectroscopy
availability
communication
industries
augmentation
sensitivity
rings
configurations
cells
wavelengths

Keywords

  • absorption spectroscopy
  • intracavity spectroscopy
  • ring-down
  • gas sensors
  • fibre lasers
  • design
  • sensor systems
  • gas spectroscopy
  • near-IR

Cite this

Stewart, G., Whitenett, G. L., Shields, P., Marshall, J., & Culshaw, B. (2003). Design of fibre laser and sensor systems for gas spectroscopy in the near-IR. 172-180. Paper presented at Conference on Industrial and Highway Sensors Technology , Providence, United States. https://doi.org/10.1117/12.515651
Stewart, G. ; Whitenett, G.L. ; Shields, P. ; Marshall, J. ; Culshaw, B. / Design of fibre laser and sensor systems for gas spectroscopy in the near-IR. Paper presented at Conference on Industrial and Highway Sensors Technology , Providence, United States.9 p.
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title = "Design of fibre laser and sensor systems for gas spectroscopy in the near-IR",
abstract = "Because of the ready availability of fibre optic components from the communications industry, fibre optic systems operating in the near-IR are well suited for remote, multi-point monitoring of hazardous and environmentally-important gases. However a number of challenges have to be met in order exploit the potential commercial opportunities and applications for such sensors. Here we review our research on gas sensors based on fibre laser systems and absorption spectroscopy. Fibre lasers are of particular interest for sensors since on-going developments have extended their wavelength range of operation over similar to1480-1620nm, encompassing the near-IR absorption lines of numerous gases. We discuss several configurations for fibre laser systems which offer the prospect of either enhanced performance or the possibility of multiplexing a number of sensor cells. However, because gas absorption lines in the near-IR spectral region are relatively weak, high sensitivity techniques are required for a number of species and we discuss methods for path-length enhancement through ring-down and intra-cavity absorption spectroscopy. Effective interrogation methods are required to attain the benefits of the various forms of cavity-enhanced spectroscopy in fibre optic systems and several techniques are under investigation to realise this potential.",
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Stewart, G, Whitenett, GL, Shields, P, Marshall, J & Culshaw, B 2003, 'Design of fibre laser and sensor systems for gas spectroscopy in the near-IR' Paper presented at Conference on Industrial and Highway Sensors Technology , Providence, United States, 28/10/03 - 30/10/03, pp. 172-180. https://doi.org/10.1117/12.515651

Design of fibre laser and sensor systems for gas spectroscopy in the near-IR. / Stewart, G.; Whitenett, G.L.; Shields, P.; Marshall, J.; Culshaw, B.

2003. 172-180 Paper presented at Conference on Industrial and Highway Sensors Technology , Providence, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Design of fibre laser and sensor systems for gas spectroscopy in the near-IR

AU - Stewart, G.

AU - Whitenett, G.L.

AU - Shields, P.

AU - Marshall, J.

AU - Culshaw, B.

PY - 2003/10

Y1 - 2003/10

N2 - Because of the ready availability of fibre optic components from the communications industry, fibre optic systems operating in the near-IR are well suited for remote, multi-point monitoring of hazardous and environmentally-important gases. However a number of challenges have to be met in order exploit the potential commercial opportunities and applications for such sensors. Here we review our research on gas sensors based on fibre laser systems and absorption spectroscopy. Fibre lasers are of particular interest for sensors since on-going developments have extended their wavelength range of operation over similar to1480-1620nm, encompassing the near-IR absorption lines of numerous gases. We discuss several configurations for fibre laser systems which offer the prospect of either enhanced performance or the possibility of multiplexing a number of sensor cells. However, because gas absorption lines in the near-IR spectral region are relatively weak, high sensitivity techniques are required for a number of species and we discuss methods for path-length enhancement through ring-down and intra-cavity absorption spectroscopy. Effective interrogation methods are required to attain the benefits of the various forms of cavity-enhanced spectroscopy in fibre optic systems and several techniques are under investigation to realise this potential.

AB - Because of the ready availability of fibre optic components from the communications industry, fibre optic systems operating in the near-IR are well suited for remote, multi-point monitoring of hazardous and environmentally-important gases. However a number of challenges have to be met in order exploit the potential commercial opportunities and applications for such sensors. Here we review our research on gas sensors based on fibre laser systems and absorption spectroscopy. Fibre lasers are of particular interest for sensors since on-going developments have extended their wavelength range of operation over similar to1480-1620nm, encompassing the near-IR absorption lines of numerous gases. We discuss several configurations for fibre laser systems which offer the prospect of either enhanced performance or the possibility of multiplexing a number of sensor cells. However, because gas absorption lines in the near-IR spectral region are relatively weak, high sensitivity techniques are required for a number of species and we discuss methods for path-length enhancement through ring-down and intra-cavity absorption spectroscopy. Effective interrogation methods are required to attain the benefits of the various forms of cavity-enhanced spectroscopy in fibre optic systems and several techniques are under investigation to realise this potential.

KW - absorption spectroscopy

KW - intracavity spectroscopy

KW - ring-down

KW - gas sensors

KW - fibre lasers

KW - design

KW - sensor systems

KW - gas spectroscopy

KW - near-IR

U2 - 10.1117/12.515651

DO - 10.1117/12.515651

M3 - Paper

SP - 172

EP - 180

ER -

Stewart G, Whitenett GL, Shields P, Marshall J, Culshaw B. Design of fibre laser and sensor systems for gas spectroscopy in the near-IR. 2003. Paper presented at Conference on Industrial and Highway Sensors Technology , Providence, United States. https://doi.org/10.1117/12.515651