Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/59917
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Type: Journal article
Title: Tunable continuous wave DFG-based gas sensor using fibre amplified 1.5 μm external cavity diode laser and high power 1 μm diode laser
Other Titles: Tunable continuous wave DFG-based gas sensor using fibre amplified 1.5 micrometres external cavity diode laser and high power 1 micrometre diode laser
Author: Limpert, J.
Zelimer, H.
Tunnermann, A.
Lancaster, D.
Weidner, R.
Richter, D.
Tittel, F.
Citation: Electronics Letters, 2000; 36(20):1739-1741
Publisher: IEEE
Issue Date: 2000
ISSN: 0013-5194
Statement of
Responsibility: 
J. Limpert, H. Zelimer, A. Tunnermann, D.G. Lancaster, R. Weidner, D. Richter and F.K. Tittel
Abstract: A novel compact, room-temperature mid-infrared difference frequency generation (DFG)-based trace gas sensor based on direct absorption spectroscopy is reported. Tunable, narrow linewidth difference frequency radiation from 3.3 to 3.5 μm is generated in periodically poled lithium niobate at power levels of >4 μW. The output from an external cavity diode laser, amplified up to 20 dBm by an erbium-doped fibre amplifier is used as the signal source. A 500 mW α-DFB diode laser at 1066 nm serves as the DFG pump source. This sensor has been applied to real time trace gas detection of CH4 and H2CO
Rights: Copyright IEE 2000
DOI: 10.1049/el:20001209
Published version: http://dx.doi.org/10.1049/el:20001209
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