Abstract
| Language | English |
|---|---|
| Pages | 172-180 |
| Number of pages | 9 |
| DOIs | |
| Publication status | Published - Oct 2003 |
| Event | Conference on Industrial and Highway Sensors Technology - Providence, United States Duration: 28 Oct 2003 → 30 Oct 2003 |
Conference
| Conference | Conference on Industrial and Highway Sensors Technology |
|---|---|
| Country | United States |
| City | Providence |
| Period | 28/10/03 → 30/10/03 |
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Keywords
- absorption spectroscopy
- intracavity spectroscopy
- ring-down
- gas sensors
- fibre lasers
- design
- sensor systems
- gas spectroscopy
- near-IR
Cite this
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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 conference › Paper
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 -