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Title: Dual modulation laser line-locking technique for wavelength modulation spectroscopy

Abstract

Disclosed are a method and apparatus for dual modulation of an optical spectroscopy laser. Demodulation is accomplished in a manner resulting in measurement of absorbance of a gas species, as well as stabilization of laser wavelength and baseline noise reduction.

Inventors:
 [1];  [1];  [1]
  1. Santa Fe, NM
Issue Date:
Research Org.:
Southwest Sciences Incorporated (Santa Fe, NM)
OSTI Identifier:
874256
Patent Number(s):
6351309
Assignee:
Southwest Sciences Incorporated (Santa Fe, NM)
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:  
FG03-90ER81053
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
dual; modulation; laser; line-locking; technique; wavelength; spectroscopy; disclosed; method; apparatus; optical; demodulation; accomplished; manner; resulting; measurement; absorbance; gas; species; stabilization; baseline; noise; reduction; /356/250/

Citation Formats

Bomse, David S, Hovde, D Christian, and Silver, Joel A. Dual modulation laser line-locking technique for wavelength modulation spectroscopy. United States: N. p., 2002. Web.
Bomse, David S, Hovde, D Christian, & Silver, Joel A. Dual modulation laser line-locking technique for wavelength modulation spectroscopy. United States.
Bomse, David S, Hovde, D Christian, and Silver, Joel A. Tue . "Dual modulation laser line-locking technique for wavelength modulation spectroscopy". United States. https://www.osti.gov/servlets/purl/874256.
@article{osti_874256,
title = {Dual modulation laser line-locking technique for wavelength modulation spectroscopy},
author = {Bomse, David S and Hovde, D Christian and Silver, Joel A},
abstractNote = {Disclosed are a method and apparatus for dual modulation of an optical spectroscopy laser. Demodulation is accomplished in a manner resulting in measurement of absorbance of a gas species, as well as stabilization of laser wavelength and baseline noise reduction.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}

Works referenced in this record:

Novel étalon fringe rejection technique for laser absorption spectroscopy
journal, January 1992


Combined wavelength and frequency modulation spectroscopy: a novel diagnostic tool for materials processing
journal, January 1993


Modulation Broadening of NMR and ESR Line Shapes
journal, November 1963


Double frequency modulation spectroscopy: high modulation frequency with low-bandwidth detectors
journal, January 1985


Dynamic resonant peak locking scheme for diode laser modulation spectroscopy
journal, January 1993


400 Hz frequency stability of a GaAlAs laser frequency locked to the Rb (D2) line
journal, January 1990


Harmonic detection with tunable diode lasers ?two-tone modulation
journal, December 1982


Dual-modulation laser line-locking scheme
journal, January 1991


Analytical Line Shapes for Lorentzian Signals Broadened by Modulation
journal, August 1965


Frequency stabilization of gas lasers
journal, November 1965