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Type: Conference paper
Title: Spectroscopic applications of QPM devices
Author: Lancaster, D.
Richter, D.
Tittel, F.
Citation: Proceedings of the Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest, Vol.1, 2001: pp. 128-129
Publisher: IEEE
Issue Date: 2001
ISBN: 0780367383
Conference Name: Pacific Rim Conference on Lasers and Electro-Optics (4th : 2001 : Chiba, Japan)
Statement of
David G Lancaster, Dirk Richter and Frank K Tittel
Abstract: The development and application of a range of absorption spectrometers, which operate in the 3.2 - 4.6 μm spectral region, are presented. The sensors are based on difference frequency mixing two cw diode lasers in periodically poled LiNbO3 to generate narrow linewidth light (<60 MHz). Ruggedness and increased power is achieved by the use of fiber optics for beam delivery and inline fiber amplifiers. Species detected in air include H2CO, CO, CO2, CH4, H2O, HCl with sensitivities down to the parts-per-billion level with direct absorption detection or <100 ppt using 2-f modulation spectroscopy.
Rights: Copyright status unknown
DOI: 10.1109/CLEOPR.2001.967760
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