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Proceedings Paper

Trace-gas detection based on temperature-tuning periodically poled MgO: LiNbO3 optical parametric oscillator
Author(s): J. Kong; C. C. Chan; D. Y. Tang; N. Ni; B. Zhao
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Paper Abstract

We report on the use of the temperature-tuned optical parametric oscillator for trace gas detection. A synchronization trace gas detection system was designed and demonstrated, in which the measuring errors caused by the instability of the OPO could be greatly reduced. The trace gas detection system was based on a periodically poled MgO-doped LiNbO3 optical parametric oscillator (OPO) which was pumped by a diode-pumped passively Q-switched Nd:GdVO4 laser. The OPO could produce wavelength-tunable signal output through changing the crystal temperature and the grating periods. The usefulness of the trace gas detection system for spectroscopy was demonstrated by directly measuring the photon absorption spectrum of the methane and acetylene gas cells.

Paper Details

Date Published: 18 October 2006
PDF: 7 pages
Proc. SPIE 6379, Photonic Applications for Aerospace, Transportation, and Harsh Environments, 637905 (18 October 2006); doi: 10.1117/12.685085
Show Author Affiliations
J. Kong, Nanyang Technological Univ. (Singapore)
C. C. Chan, Nanyang Technological Univ. (Singapore)
D. Y. Tang, Nanyang Technological Univ. (Singapore)
N. Ni, Nanyang Technological Univ. (Singapore)
B. Zhao, Nanyang Technological Univ. (Singapore)


Published in SPIE Proceedings Vol. 6379:
Photonic Applications for Aerospace, Transportation, and Harsh Environments
Christopher S. Baldwin; Alex A. Kazemi; Anbo Wang, Editor(s)

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