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Title: Tunable diode laser absorption spectroscopy with corrected laser ramping nonlinearities

Abstract

A tunable diode laser absorption spectroscopy device includes a tunable diode laser. A laser driver is configured to drive the diode laser and ramp it within a particular frequency range. An analyte gas container, a reference gas container, and a fringe generating device are configured to receive the laser therethrough. An optical detector is configured to detect the laser after it has passed through the analyte gas container and/or the reference gas container, and the in-line fringe generating device. An acquisition card is configured to sample an output of the optical detector. A spectral analyzer is configured to receive output data from the acquisition card, determine a spectrum of the output data, decouple the fringe spectrum from the measured spectrum, calibrate the spectrum based on an expected ideal spectrum of both the fringe and reference gas, and determine a composition of the analyte based on the calibrated spectrum.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1650994
Patent Number(s):
10,677,726
Application Number:
15/846,912
Assignee:
International Business Machines Corporation (Armonk, NY)
DOE Contract Number:  
AR0000540
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/19/2017
Country of Publication:
United States
Language:
English

Citation Formats

Green, William, Teng, Chu Cheyenne, Wysocki, Gerard, Xiong, Chi, and Zhang, Eric. Tunable diode laser absorption spectroscopy with corrected laser ramping nonlinearities. United States: N. p., 2020. Web.
Green, William, Teng, Chu Cheyenne, Wysocki, Gerard, Xiong, Chi, & Zhang, Eric. Tunable diode laser absorption spectroscopy with corrected laser ramping nonlinearities. United States.
Green, William, Teng, Chu Cheyenne, Wysocki, Gerard, Xiong, Chi, and Zhang, Eric. Tue . "Tunable diode laser absorption spectroscopy with corrected laser ramping nonlinearities". United States. https://www.osti.gov/servlets/purl/1650994.
@article{osti_1650994,
title = {Tunable diode laser absorption spectroscopy with corrected laser ramping nonlinearities},
author = {Green, William and Teng, Chu Cheyenne and Wysocki, Gerard and Xiong, Chi and Zhang, Eric},
abstractNote = {A tunable diode laser absorption spectroscopy device includes a tunable diode laser. A laser driver is configured to drive the diode laser and ramp it within a particular frequency range. An analyte gas container, a reference gas container, and a fringe generating device are configured to receive the laser therethrough. An optical detector is configured to detect the laser after it has passed through the analyte gas container and/or the reference gas container, and the in-line fringe generating device. An acquisition card is configured to sample an output of the optical detector. A spectral analyzer is configured to receive output data from the acquisition card, determine a spectrum of the output data, decouple the fringe spectrum from the measured spectrum, calibrate the spectrum based on an expected ideal spectrum of both the fringe and reference gas, and determine a composition of the analyte based on the calibrated spectrum.},
doi = {},
url = {https://www.osti.gov/biblio/1650994}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {6}
}

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