Journal
APPLIED PHYSICS B-LASERS AND OPTICS
Volume 81, Issue 6, Pages 769-777Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00340-005-1965-4
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An external cavity (EC) quantum cascade laser (QCL) configuration with the thermoelectrically cooled gain medium fabricated using a bound-to-continuum design and operating in continuous wave at similar to 5.2 mu m is reported. The EC architecture employs a piezo-activated cavity mode tracking system for mode-hop free operation suitable for high resolution spectroscopic applications and multiple species trace-gas detection. The performance of the EC-QCL exhibits coarse single mode tuning over 35 cm(-1) and a continuous mode-hop free fine tuning range of similar to 1.2 cm(-1).
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