Share Email Print
cover

Proceedings Paper

Diode laser MIR-DFG spectrometer for trace gas detection
Author(s): Ulrike Willer; Torsten Blanke; Wolfgang Schade
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Two cw-single mode diode-lasers with powers of 30 and 50 mW at the center wavelengths 682 and 791 nm are applied as signal and pump sources for difference frequency generation (DFG) in an AgGaS2 crystal with a length of 30 mm. For 90 degree type I phase matching tunable mid-infrared laser radiation is obtained in the spectral range between 4.9 and 5.1 micrometers , while the DFG-output power is 0.2 (mu) W. The performance of this diode-laser MIR-DFG spectrometer is shown as the absorption of CO for the P(28) rotational line around 2023 cm-1 is probed in a cell and on-line in the exhaust of an engine.

Paper Details

Date Published: 21 October 1996
PDF: 8 pages
Proc. SPIE 2834, Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Process Monitoring, (21 October 1996); doi: 10.1117/12.255333
Show Author Affiliations
Ulrike Willer, Univ. Kiel (Germany)
Torsten Blanke, Univ. Kiel (Germany)
Wolfgang Schade, Univ. Kiel (Germany)


Published in SPIE Proceedings Vol. 2834:
Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Process Monitoring
Alan Fried, Editor(s)

© SPIE. Terms of Use
Back to Top