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Title: Compact TDLAS based optical sensor for ppb-level ethane detection by use of a 3.34 μm room-temperature CW interband cascade laser

A mid-infrared ethane (C 2H 6) sensor based on a wavelength modulation spectroscopy (WMS) technique was developed using a thermoelectrically cooled (TEC), continuous-wave (CW) interband cascade laser (ICL) emitting at 3.34 μm and a dense multi-pass gas cell (MPGC, 17 × 6.5 × 5.5 cm 3) with a 54.6 m optical path length. A compact optical sensor system with a physical size of 35.5 × 18 × 12.5 cm 3 was designed and constructed. An ICL was employed for targeting a strong C 2H 6 line at 2996.88 cm -1 at <100 Torr gas pressure in the fundamental absorption band of C 2H 6. The sensor performance, including the minimum detection limit (MDL) and the stability were improved by reducing the effect of laser power drift by means of the 2f/1f-WMS technique. A MDL of ~1.2 parts per billion (ppbv) for 2f-WMS and ~1.0 ppbv for 2f/1f-WMS were achieved, respectively, with a measurement time of 4 s. The MDL was further improved from 299 pptv (@108 s for 2f-WMS) to 239 pptv (@208 s for 2f/1f-WMS), based on an Allan deviation analysis.The rise time (@0 → 100 ppbv) and fall time (@100 → 0 ppbv) were determined to be ~64more » s and ~48 s,respectively, at a gas pressure of <100 Torr for the C 2H 6 sensor operation.« less
Authors:
 [1] ;  [2] ;  [1] ;  [3]
  1. Rice Univ., Houston, TX (United States). Dept. of Electrical and Computer Engineering; Jilin Univ., Changchun (China). State Key Lab. on Integrated Optoelectronics and College of Electronic Science and Engineering
  2. Rice Univ., Houston, TX (United States). Dept. of Electrical and Computer Engineering; Shanxi Univ., Taiyuan (China). State Key Lab. of Quantum Optics and Quantum Optics Devices and Inst. of Laser Spectroscopy
  3. Rice Univ., Houston, TX (United States). Dept. of Electrical and Computer Engineering
Publication Date:
Report Number(s):
DOE-MAXION-00538-16
Journal ID: ISSN 0925-4005; PII: S092540051630435X
Grant/Contract Number:
AR0000538; 201406170107; C-0586; IIP-1230427; AR0000547; AR0000545; 201506175025; 61307124; 14KG022; 61575113; 61275213
Type:
Accepted Manuscript
Journal Name:
Sensors and Actuators. B, Chemical
Additional Journal Information:
Journal Volume: 232; Journal Issue: C; Journal ID: ISSN 0925-4005
Publisher:
Elsevier
Research Org:
Rice Univ., Houston, TX (United States)
Sponsoring Org:
USDOE Advanced Research Projects Agency - Energy (ARPA-E); China Scholarship Council; National Science Foundation (NSF); Welch Foundation, Houston, TX (United States); National Natural Science Foundation of China (NNSFC); Changchun Municipal Science and Technology Bureau
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 47 OTHER INSTRUMENTATION; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; C2H6 sensor; Infrared spectroscopy; Interband cascade laser
OSTI Identifier:
1435936

Li, Chunguang, Dong, Lei, Zheng, Chuantao, and Tittel, Frank K. Compact TDLAS based optical sensor for ppb-level ethane detection by use of a 3.34 μm room-temperature CW interband cascade laser. United States: N. p., Web. doi:10.1016/j.snb.2016.03.141.
Li, Chunguang, Dong, Lei, Zheng, Chuantao, & Tittel, Frank K. Compact TDLAS based optical sensor for ppb-level ethane detection by use of a 3.34 μm room-temperature CW interband cascade laser. United States. doi:10.1016/j.snb.2016.03.141.
Li, Chunguang, Dong, Lei, Zheng, Chuantao, and Tittel, Frank K. 2016. "Compact TDLAS based optical sensor for ppb-level ethane detection by use of a 3.34 μm room-temperature CW interband cascade laser". United States. doi:10.1016/j.snb.2016.03.141. https://www.osti.gov/servlets/purl/1435936.
@article{osti_1435936,
title = {Compact TDLAS based optical sensor for ppb-level ethane detection by use of a 3.34 μm room-temperature CW interband cascade laser},
author = {Li, Chunguang and Dong, Lei and Zheng, Chuantao and Tittel, Frank K.},
abstractNote = {A mid-infrared ethane (C2H6) sensor based on a wavelength modulation spectroscopy (WMS) technique was developed using a thermoelectrically cooled (TEC), continuous-wave (CW) interband cascade laser (ICL) emitting at 3.34 μm and a dense multi-pass gas cell (MPGC, 17 × 6.5 × 5.5 cm3) with a 54.6 m optical path length. A compact optical sensor system with a physical size of 35.5 × 18 × 12.5 cm3 was designed and constructed. An ICL was employed for targeting a strong C2H6 line at 2996.88 cm-1 at <100 Torr gas pressure in the fundamental absorption band of C2H6. The sensor performance, including the minimum detection limit (MDL) and the stability were improved by reducing the effect of laser power drift by means of the 2f/1f-WMS technique. A MDL of ~1.2 parts per billion (ppbv) for 2f-WMS and ~1.0 ppbv for 2f/1f-WMS were achieved, respectively, with a measurement time of 4 s. The MDL was further improved from 299 pptv (@108 s for 2f-WMS) to 239 pptv (@208 s for 2f/1f-WMS), based on an Allan deviation analysis.The rise time (@0 → 100 ppbv) and fall time (@100 → 0 ppbv) were determined to be ~64 s and ~48 s,respectively, at a gas pressure of <100 Torr for the C2H6 sensor operation.},
doi = {10.1016/j.snb.2016.03.141},
journal = {Sensors and Actuators. B, Chemical},
number = C,
volume = 232,
place = {United States},
year = {2016},
month = {3}
}