COMPACT MIDINFRARED TRACE GAS SENSOR-BASED ON DIFFERENCE-FREQUENCY-GENERATION OF 2 DIODE-LASERS IN PERIODICALLY POLED LINBO3

Authors
RICHTER D LANCASTER DG CURL RF NEU W TITTEL FK
Citation
D. Richter et al., COMPACT MIDINFRARED TRACE GAS SENSOR-BASED ON DIFFERENCE-FREQUENCY-GENERATION OF 2 DIODE-LASERS IN PERIODICALLY POLED LINBO3, Applied physics. B, Lasers and optics, 67(3), 1998, pp. 347-350
Citations number
17
Categorie Soggetti
Physics, Applied",Optics
Journal title
Applied physics. B, Lasers and optics → ACNP
ISSN journal
09462171
Volume
67
Issue
3
Year of publication
1998
Pages
347 - 350
Database
ISI
SICI code
0946-2171(1998)67:3<347:CMTGSO>2.0.ZU;2-S
Abstract
The development and characterization of a compact mid-infrared source for high-resolution spectroscopic detection of trace gases such as met hane and water vapor at 3.3 mu m in ambient air is reported. This sour ce utilizes difference frequency generation (DFG) in a periodically po led LiNbO3 (PPLN) crystal pumped by two single-frequency diode lasers. A maximum DFG power of 1.6 mu W at 3.6 mu m was generated with a pump power of 61.4 mW at 832 nm and a signal power of 41.5 mW at 1083 nm i ncident on a 19-mm-long PPLN crystal, which corresponds to a conversio n efficiency of 335 mu WW-2 cm(-1).