Simulation-based comparison of noise effects in wavelength modulation spectroscopy and direct absorption TDLAS

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Lins B, Zinn P, Engelbrecht R, Schmauß B
Zeitschrift: Applied Physics B-Lasers and Optics
Verlag: Springer Verlag (Germany)
Jahr der Veröffentlichung: 2010
Band: 100
Seitenbereich: 367-376
ISSN: 0946-2171
Sprache: Englisch


Abstract


A simulative investigation of noise effects in wavelength modulation spectroscopy (WMS) and direct absorption diode laser absorption spectroscopy is presented. Special attention is paid to the impact of quantization noise of the analog-to-digital conversion (ADC) of the photodetector signal in the two detection schemes with the goal of estimating the necessary ADC resolution for each technique. With laser relative intensity noise (RIN), photodetector shot noise and thermal amplifier noise included, the strategies used for noise reduction in direct and wavelength modulation spectroscopy are compared by simulating two respective systems. Results show that because of the combined effects of dithering by RIN and signal averaging, the resolutions required for the direct absorption setup are only slightly higher than for the WMS setup. Only for small contributions of RIN an increase in resolution will significantly improve signal quality in the direct scheme. © Springer-Verlag 2010.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Engelbrecht, Rainer PD Dr.
Lehrstuhl für Hochfrequenztechnik
Lins, Bastian
Lehrstuhl für Technische Thermodynamik
Schmauß, Bernhard Prof. Dr.-Ing.
Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik


Zusätzliche Organisationseinheit(en)
Erlangen Graduate School in Advanced Optical Technologies


Zitierweisen

APA:
Lins, B., Zinn, P., Engelbrecht, R., & Schmauß, B. (2010). Simulation-based comparison of noise effects in wavelength modulation spectroscopy and direct absorption TDLAS. Applied Physics B-Lasers and Optics, 100, 367-376. https://dx.doi.org/10.1007/s00340-009-3881-5

MLA:
Lins, Bastian, et al. "Simulation-based comparison of noise effects in wavelength modulation spectroscopy and direct absorption TDLAS." Applied Physics B-Lasers and Optics 100 (2010): 367-376.

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Zuletzt aktualisiert 2019-16-01 um 13:03