Dual modulation laser line-locking technique for wavelength modulation spectroscopy

Bomse, David S; Hovde, D Christian; Silver, Joel A

Dual modulation laser line-locking technique for wavelength modulation spectroscopy

Patent · Tue Jan 01 04:00:00 EST 2002

OSTI ID:874256

Bomse, David S ^[1]; Hovde, D Christian ^[1]; Silver, Joel A ^[1]

Santa Fe, NM

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.

Research Organization:: Southwest Sciences Incorporated (Santa Fe, NM)

DOE Contract Number:: FG03-90ER81053

Assignee:: Southwest Sciences Incorporated (Santa Fe, NM)

Patent Number(s):: US 6351309

OSTI ID:: 874256

Country of Publication:: United States

Language:: English

References (10)

Novel étalon fringe rejection technique for laser absorption spectroscopy Sun, H. C.; Whittaker, E. A. Applied Optics, Vol. 31, Issue 24 https://doi.org/10.1364/AO.31.004998	journal	January 1992
Modulation Broadening of NMR and ESR Line Shapes Wilson, G. V. H. Journal of Applied Physics, Vol. 34, Issue 11 https://doi.org/10.1063/1.1729177	journal	November 1963
Harmonic detection with tunable diode lasers ?two-tone modulation Cassidy, D. T.; Reid, J. Applied Physics B Photophysics and Laser Chemistry, Vol. 29, Issue 4 https://doi.org/10.1007/BF00689188	journal	December 1982
Double frequency modulation spectroscopy: high modulation frequency with low-bandwidth detectors Cooper, David E.; Gallagher, T. F. Applied Optics, Vol. 24, Issue 9 https://doi.org/10.1364/AO.24.001327	journal	January 1985
Frequency stabilization of gas lasers White, A. IEEE Journal of Quantum Electronics, Vol. 1, Issue 8 https://doi.org/10.1109/JQE.1965.1072246	journal	November 1965
Analytical Line Shapes for Lorentzian Signals Broadened by Modulation Arndt, Rolf Journal of Applied Physics, Vol. 36, Issue 8 https://doi.org/10.1063/1.1714523	journal	August 1965
Dynamic resonant peak locking scheme for diode laser modulation spectroscopy Sun, Hoi Cheong Optical Engineering, Vol. 32, Issue 3 https://doi.org/10.1117/12.61034	journal	January 1993
Combined wavelength and frequency modulation spectroscopy: a novel diagnostic tool for materials processing Sun, H. C.; Whittaker, E. A.; Bae, Y. W. Applied Optics, Vol. 32, Issue 6 https://doi.org/10.1364/AO.32.000885	journal	January 1993
400 Hz frequency stability of a GaAlAs laser frequency locked to the Rb (D2) line Chung, Yun Chur Optical Engineering, Vol. 29, Issue 6 https://doi.org/10.1117/12.55630	journal	January 1990
Dual-modulation laser line-locking scheme Bomse, David S. Applied Optics, Vol. 30, Issue 21 https://doi.org/10.1364/AO.30.002922	journal	January 1991

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Related Subjects

/356/250/
absorbance
accomplished
apparatus
baseline
demodulation
disclosed
dual
gas
laser
line-locking
manner
measurement
method
modulation
noise
optical
reduction
resulting
species
spectroscopy
stabilization
technique
wavelength

Dual modulation laser line-locking technique for wavelength modulation spectroscopy

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References (10)

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