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Room-temperature operation of GaAs-based quantum cascade lasers processed as ridge and microcavity waveguides

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7 Author(s)
Anders, S. ; Inst. fur Festkorperelektronik, Tech. Univ. Wien, Austria ; Schrenk, W. ; Pflugl, C. ; Gornik, E.
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The performance of a GaAs-based superlattice quantum cascade laser is reported. Both the maximum operating temperature, 95°C, and the peak power output, 300 mW at room temperature, exceed previous records of GaAs-based quantum cascade lasers. Various types of cavities were explored: conventional Fabry Perot cavities for maximum power output, narrow cavities for improved cooling, cylindrical cavities for potentially low threshold and single-mode distributed-feedback lasers for applications in spectroscopy.

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Optoelectronics, IEE Proceedings -  (Volume:150 ,  Issue: 4 )