The Effect of Active Region Heating on Dynamic and Power Characteristics of Quantum Cascade Lasers Emitting at a Wavelength of 4.8 µm at Room Temperature

V. V. Dudelev,V. V. Mamutin,D. V. Chistyakov, E. A. Kognovitskaya, V. I. Kuchinskii,N. A. Maleev,A. P. Vasil’ev, A. G. Kuz’menkov,V. M. Ustinov,G. S. Sokolovskii

Optics and Spectroscopy（2019）

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摘要

Results of studying stripe quantum cascade lasers emitting at room temperature in the spectral range of 4.8 µm are presented. Power characteristics and turn-on dynamics of the lasers upon pulse pumping are studied. The performed investigations demonstrate the presence of a significant heating of the active region during the pump pulse.

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关键词

heterostructure,active region,pump pulse.

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