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Photoacoustic spectroscopy and trace gas analysis using a pulsed PPLN optical parametric oscillator

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6 Author(s)
Liang, G.-C. ; Inst. of Atomic & Molecular Sci., Acad. Sinica, Taipei, Taiwan ; Liu, H.-H. ; Kung, A.H. ; Schmohl, A.
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Summary form only given.Development of compact and yet sensitive devices for monitoring and analyzing trace gases has been of primary importance. Recently, we have developed an all-solid-state tunable optical parametric oscillator (OPO) based on periodically-poled lithium niobate (LiNbO/sub 3/) as the nonlinear medium. The OPO cavity is configured with a grazing-incidence grating-mirror combination, which allows rapid scanning over a wide range in the infrared. In this OPO, we achieved a linewidth of 0.3 cm/sup -1/ and a power conversion efficiency of 46%. Over 50 mW are routinely available in the 3-/spl mu/m region.

Published in:

Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on

Date of Conference:

7-12 May 2000