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Title: Compact CH4 sensor system based on a continuous-wave, low power consumption, room temperature interband cascade laser

Journal Article · · Applied Physics Letters
DOI: https://doi.org/10.1063/1.4939452 · OSTI ID:1435727
 [1];  [2];  [3];  [2];  [3];  [2]
  1. 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, Inst. of Laser Spectroscopy; Maxion Technologies
  2. Rice Univ., Houston, TX (United States). Dept. of Electrical and Computer Engineering
  3. Rice Univ., Houston, TX (United States). Dept. of Civil and Environmental Engineering

A tunable diode laser absorption spectroscopy-based methane sensor, employing a dense-pattern multi-pass gas cell and a 3.3 µm, CW, DFB, room temperature interband cascade laser (ICL), is reported. The optical integration based on an advanced folded optical path design and an efficient ICL control system with appropriate electrical power management resulted in a CH4 sensor with a small footprint (32 x 20 x 17 cm3) and low-power consumption (6 W). Polynomial and least-squares fit algorithms are employed to remove the baseline of the spectral scan and retrieve CH4 concentrations, respectively. An Allan-Werle deviation analysis shows that the measurement precision can reach 1.4 ppb for a 60 s averaging time. Continuous measurements covering a seven-day period were performed to demonstrate the stability and robustness of the reported CH4 sensor system.

Research Organization:
Rice Univ., Houston, TX (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E); National Natural Science Foundation of China (NNSFC)
Grant/Contract Number:
AR0000538
OSTI ID:
1435727
Report Number(s):
DOE-MAXION--00538-14
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 1 Vol. 108; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Ppb-level mid-infrared ethane detection based on three measurement schemes using a 3.34-μm continuous-wave interband cascade laser journal June 2016
External cavity quantum cascade laser-based QEPAS for chlorodifluoromethane spectroscopy and sensing journal June 2019
Dynamic spectral characteristics measurement of DFB interband cascade laser under injection current tuning journal July 2016
Instant precipitation of KMgF 3 :Ni 2+ nanocrystals with broad emission (1.3‐2.2 μm) for potential combustion gas sensors journal March 2018
Pressure-dependent sensitivity of a single-pass methane detection system using a continuous-wave distributed feedback laser at 3270  nm journal January 2019
Improved spherical mirror multipass-cell-based interband cascade laser spectrometer for detecting ambient formaldehyde at parts per trillion by volume levels journal January 2019
Compact photoacoustic module for methane detection incorporating interband cascade light emitting device journal January 2017
Laser frequency locking and intensity normalization in wavelength modulation spectroscopy for sensitive gas sensing journal January 2019
Calculation model of dense spot pattern multi-pass cells based on a spherical mirror aberration journal January 2019
Relative intensity noise of a continuous-wave interband cascade laser at room temperature journal January 2019
Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review journal January 2019
Near-Infrared Quartz-Enhanced Photoacoustic Sensor for H2S Detection in Biogas journal December 2019