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Title: Mid-infrared dual-gas sensor for simultaneous detection of methane and ethane using a single continuous-wave interband cascade laser

Journal Article · · Optics Express
 [1];  [2];  [2];  [3];  [3];  [3];  [4];  [3];  [3]
  1. Rice Univ., Houston, TX (United States); Shantou Univ., Shantou (China)
  2. Rice Univ., Houston, TX (United States); Jilin Univ., Changchun (China)
  3. Rice Univ., Houston, TX (United States)
  4. Rice Univ., Houston, TX (United States); Shanxi Univ., Taiyuan (China)

A continuous-wave (CW) interband cascade laser (ICL) based mid-infrared sensor system was demonstrated for simultaneous detection of atmospheric methane (CH4) and ethane (C2H6). A 3.337 µm CW ICL with an emitting wavenumber range of 2996.0–3001.5 cm–1 was used to simultaneously target two absorption lines, C2H6 at 2996.88 cm–1 and CH4 at 2999.06 cm–1, respectively. The sensor performance was first evaluated for single-gas detection by only targeting the absorption line of one gas species. Allan deviations of 11.2 parts per billion in volume (ppbv) for CH4 and 1.86 ppbv for C2H6 with an averaging time of 3.4 s were achieved for the detection of these two gases. Dual-gas detection was realized by using a long-term scan signal to target both CH4 and C2H6 lines. The Allan deviations increased slightly to 17.4 ppbv for CH4 and 2.4 ppbv for C2H6 with an averaging time of 4.6 s due to laser temperature and power drift caused by long-term wavelength scanning. Measurements for both indoor and outdoor concentration changes of CH4 and C2H6 were conducted. As a result, the reported single ICL based dual-gas sensor system has the advantages of reduced size and cost compared to two separate sensor systems.

Research Organization:
Rice Univ., Houston, TX (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Grant/Contract Number:
AR0000538; 0000545; 0000547; 14KG022
OSTI ID:
2425999
Alternate ID(s):
OSTI ID: 1435134; OSTI ID: 1435135
Report Number(s):
DOE-MAXION-00538-11; OPEXFF
Journal Information:
Optics Express, Vol. 24, Issue 15; ISSN 1094-4087
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 67 works
Citation information provided by
Web of Science

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A near-infrared carbon dioxide sensor system using a compact folded optical structure for deep-sea natural gas hydrate exploration journal January 2018
An auto-correction laser photoacoustic spectrometer based on 2 f /1 f wavelength modulation spectroscopy journal January 2020
Cavity enhanced absorption spectroscopy in the mid-infrared using a supercontinuum source journal August 2017
Photoacoustic Measurement of Ethane with Near-Infrared DFB Diode Laser journal January 2018
Pressure-dependent sensitivity of a single-pass methane detection system using a continuous-wave distributed feedback laser at 3270  nm journal January 2019
Compact photoacoustic module for methane detection incorporating interband cascade light emitting device journal January 2017
Highly sensitive and selective CO sensor using a 233 μm diode laser and wavelength modulation spectroscopy journal January 2018
Near-infrared acetylene sensor system using off-axis integrated-cavity output spectroscopy and two measurement schemes journal January 2018
ICL-based mid-infrared carbon dioxide sensor system for deep-sea natural gas hydrate exploration journal January 2019
Single-chip, mid-infrared array for room temperature video rate imaging journal January 2017
Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review journal January 2019
Recent Developments in Modulation Spectroscopy for Methane Detection Based on Tunable Diode Laser journal July 2019