DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fourier domain dynamic correction method for complex optical fringes in laser spectrometers

Abstract

A method is provided for Fourier domain dynamic correction of optical fringes in a laser spectrometer. The method includes Fourier transforming a background spectrum contaminated with the optical fringes to obtain baseline fringes in a frequency domain. The method includes partitioning the baseline fringes in the frequency domain to obtain partitioned baseline fringes. The method includes reconstructing the partitioned baseline fringes as separate spectra. The method includes constructing a fitting model to approximate the background spectrum by assigning a first and a second free parameter to each of partitioned baseline fringe components to respectively allow for drift and amplitude adjustments during a fitting of the fitting model. The method includes applying the fitting model to a newly acquired spectrum to provide an interpretation of the newly acquired spectrum having a reduced influence of spectral contamination on concentration retrieval.

Inventors:
; ; ;
Issue Date:
Research Org.:
International Business Machines Corp., Armonk, NY (United States); Princeton Univ., NJ (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1840333
Patent Number(s):
11085826
Application Number:
16/773,560
Assignee:
International Business Machines Corporation (Armonk, NY); The Trustees of Princeton University (Princeton, NJ)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AR0000540
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/27/2020
Country of Publication:
United States
Language:
English

Citation Formats

Teng, Cheyenne, Wysocki, Gerard, Zhang, Eric J., and Green, William M. Fourier domain dynamic correction method for complex optical fringes in laser spectrometers. United States: N. p., 2021. Web.
Teng, Cheyenne, Wysocki, Gerard, Zhang, Eric J., & Green, William M. Fourier domain dynamic correction method for complex optical fringes in laser spectrometers. United States.
Teng, Cheyenne, Wysocki, Gerard, Zhang, Eric J., and Green, William M. Tue . "Fourier domain dynamic correction method for complex optical fringes in laser spectrometers". United States. https://www.osti.gov/servlets/purl/1840333.
@article{osti_1840333,
title = {Fourier domain dynamic correction method for complex optical fringes in laser spectrometers},
author = {Teng, Cheyenne and Wysocki, Gerard and Zhang, Eric J. and Green, William M.},
abstractNote = {A method is provided for Fourier domain dynamic correction of optical fringes in a laser spectrometer. The method includes Fourier transforming a background spectrum contaminated with the optical fringes to obtain baseline fringes in a frequency domain. The method includes partitioning the baseline fringes in the frequency domain to obtain partitioned baseline fringes. The method includes reconstructing the partitioned baseline fringes as separate spectra. The method includes constructing a fitting model to approximate the background spectrum by assigning a first and a second free parameter to each of partitioned baseline fringe components to respectively allow for drift and amplitude adjustments during a fitting of the fitting model. The method includes applying the fitting model to a newly acquired spectrum to provide an interpretation of the newly acquired spectrum having a reduced influence of spectral contamination on concentration retrieval.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {8}
}

Works referenced in this record:

Improved algorithm for the suppression of interference fringe in absorption spectroscopy
journal, November 2004


Apparatus and system for multivariate spectral analysis
patent, June 2003


Optical interference fringe reduction in frequency-modulation spectroscopy experiments
journal, January 1995


Silicon photonic on-chip trace-gas spectroscopy of methane
conference, January 2016


High-accuracy mid-IR laser-based gas sensor
patent, May 2017


Methane absorption spectroscopy on a silicon photonic chip
journal, January 2017


Augmented classical least squares multivariate spectral analysis
patent, February 2004


Fiber-pigtailed silicon photonic sensors for methane leak detection
conference, January 2017


Envelope functions for modulation spectroscopy
patent, June 2007


Method And Apparatus For Determining Marker Gas Concentration Using An Internal Calibrating Gas
patent-application, April 2007


Optical interference fringe reduction in laser absorption experiments
journal, January 1988


Method and apparatus for modeling mass spectrometer lineshapes
patent, July 2006


Multi-harmonic inline reference cell for optical trace gas sensing
patent, March 2015