2 May 2014 Time resolved FTIR study of spectral tuning and thermal dynamics of mid-IR QCLs
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Abstract
The aim of this paper is to address some of the aspects of thermal management of QCLs. Results include electrical and spectral characterization of the devices. Results show shift of QCL emission mode towards lower wavenumbers during the pulse. Characteristics were registered at different temperatures of operation and driving conditions. Registered shift rates depend on operating temperature, being the highest at room temperature. Based on spectral tuning results, temperature increase rates for different modes of operations were evaluated, delivering information on thermal dynamics of investigated devices.
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Kamil Pierściński, Dorota Pierścińska, Dariusz Szabra, Mirosław Nowakowski, Jacek Wojtas, Janusz Mikołajczyk, Zbigniew Bielecki, Maciej Bugajski, "Time resolved FTIR study of spectral tuning and thermal dynamics of mid-IR QCLs", Proc. SPIE 9134, Semiconductor Lasers and Laser Dynamics VI, 91341L (2 May 2014); doi: 10.1117/12.2052206; https://doi.org/10.1117/12.2052206
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