V. V. Dyudelev, 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, “The effect of active region heating on dynamic and power characteristics of quantum cascade lasers emitting at a wavelength of 4.8 <nobr>$\mu$</nobr>m at room temperature”, Optics and Spectroscopy, 2019, Volume 127, Issue 3,Pages <nobr>445

Laser physics and laser optics

The effect of active region heating on dynamic and power characteristics of quantum cascade lasers emitting at a wavelength of 4.8 $\mu$m at room temperature

V. V. Dyudelev^a, V. V. Mamutin^a, D. V. Chistyakov^b, E. A. Kognovitskaya^ac, V. I. Kuchinskii^a, N. A. Maleev^a, A. P. Vasil'ev^ad, A. G. Kuz'menkov^ad, V. M. Ustinov^cd, G. S. Sokolovskii^a

^a Ioffe Institute, St. Petersburg
^b St. Petersburg National Research University of Information Technologies, Mechanics and Optics
^c Saint Petersburg Electrotechnical University "LETI"
^d Submicron Heterostructures for Microelectronics Research and Engineering Center, Russian Academy of Sciences, St. Petersburg

Abstract: Results of studying stripe quantum cascade lasers emitting at room temperature in the spectral range of 4.8 $\mu$m 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.

Keywords: heterostructure, active region, pump pulse.

Received: 11.02.2019
Revised: 11.02.2019
Accepted: 15.03.2019

DOI: 10.21883/OS.2019.09.48199.47-19