Widely tunable mode-hop free external cavity quantum cascade laser for high resolution spectroscopic applications
نویسندگان
چکیده
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 ∼ 5.2 μm 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 ∼ 1.2 cm−1. PACS 07.07.Df; 42.55.Px; 42.62.Fi; 42.60.Fc
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تاریخ انتشار 2005