Methane sensing with a novel micromachined single-frequency Fabry-Perot laser diode emitting at 1331 nm

V. Weldon; J. O'Gorman; J. J. Pérez-Camacho; D. McDonald; J. Hegarty; B. Corbett

doi:10.1109/68.556072

Methane sensing with a novel micromachined single-frequency Fabry-Perot laser diode emitting at 1331 nm

V. Weldon
, J. O'Gorman
, J. J. Pérez-Camacho
, D. McDonald
, J. Hegarty
, B. Corbett

Trinity College Dublin

Research output: Contribution to journal › Article › peer-review

Abstract

Spectroscopic-based gas sensing is demonstrated using micromachined single-frequency Fabry-Perot (FP) laser diodes emitting at 1.331 μm with a side mode suppression ratio of greater than 24 dB over a significant emission wavelength tuning range. The utility of these novel mode controlled FP lasers for spectroscopic detection of gases is assessed by investigating the methane-absorption band in the 1.33 μm region. By probing the narrow linewidth R2 rotational absorption line, we demonstrate a low gas detection limit of 28 ppm·m and confirm the suitability of micromachined lasers in such applications.

Original language	English
Pages (from-to)	357-359
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	9
Issue number	3
DOIs	https://doi.org/10.1109/68.556072
Publication status	Published - Mar 1997

Keywords

Gas sensing
Longitudinal mode control
Single-frequency laser diode
Wavelength modulation spectroscopy

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10.1109/68.556072

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title = "Methane sensing with a novel micromachined single-frequency Fabry-Perot laser diode emitting at 1331 nm",

abstract = "Spectroscopic-based gas sensing is demonstrated using micromachined single-frequency Fabry-Perot (FP) laser diodes emitting at 1.331 μm with a side mode suppression ratio of greater than 24 dB over a significant emission wavelength tuning range. The utility of these novel mode controlled FP lasers for spectroscopic detection of gases is assessed by investigating the methane-absorption band in the 1.33 μm region. By probing the narrow linewidth R2 rotational absorption line, we demonstrate a low gas detection limit of 28 ppm·m and confirm the suitability of micromachined lasers in such applications.",

keywords = "Gas sensing, Longitudinal mode control, Single-frequency laser diode, Wavelength modulation spectroscopy",

author = "V. Weldon and J. O'Gorman and P{\'e}rez-Camacho, \{J. J.\} and D. McDonald and J. Hegarty and B. Corbett",

year = "1997",

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doi = "10.1109/68.556072",

language = "English",

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pages = "357--359",

journal = "IEEE Photonics Technology Letters",

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AU - Weldon, V.

AU - O'Gorman, J.

AU - Pérez-Camacho, J. J.

AU - McDonald, D.

AU - Hegarty, J.

AU - Corbett, B.

PY - 1997/3

Y1 - 1997/3

N2 - Spectroscopic-based gas sensing is demonstrated using micromachined single-frequency Fabry-Perot (FP) laser diodes emitting at 1.331 μm with a side mode suppression ratio of greater than 24 dB over a significant emission wavelength tuning range. The utility of these novel mode controlled FP lasers for spectroscopic detection of gases is assessed by investigating the methane-absorption band in the 1.33 μm region. By probing the narrow linewidth R2 rotational absorption line, we demonstrate a low gas detection limit of 28 ppm·m and confirm the suitability of micromachined lasers in such applications.

AB - Spectroscopic-based gas sensing is demonstrated using micromachined single-frequency Fabry-Perot (FP) laser diodes emitting at 1.331 μm with a side mode suppression ratio of greater than 24 dB over a significant emission wavelength tuning range. The utility of these novel mode controlled FP lasers for spectroscopic detection of gases is assessed by investigating the methane-absorption band in the 1.33 μm region. By probing the narrow linewidth R2 rotational absorption line, we demonstrate a low gas detection limit of 28 ppm·m and confirm the suitability of micromachined lasers in such applications.

KW - Gas sensing

KW - Longitudinal mode control

KW - Single-frequency laser diode

KW - Wavelength modulation spectroscopy

UR - https://www.scopus.com/pages/publications/0031102984

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DO - 10.1109/68.556072

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SP - 357

EP - 359

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 3

ER -

Methane sensing with a novel micromachined single-frequency Fabry-Perot laser diode emitting at 1331 nm

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Keywords

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