K. A. Podgaetskii, A. V. Lobintsov, A. I. Danilov, A. V. Ivanov, M. A. Ladugin, A. A. Marmalyuk, V. V. Dyudelev, D. A. Mikhailov, D. V. Chistyakov, A. V. Babichev, G. M. Savchenko, A. V. Lyutetskiy, S. O. Slipchenko, N. A. Pikhtin, A. G. Gladyshev, I. I. Novikov, L. Ya. Karachinsky, A. Yu. Egorov, G. S. Sokolovskii, “Dielectric highly reflective mirror coatings for quantum cascade lasers with 4 - 5 μm emission wavelength”, Kvantovaya Elektronika, 2023, Volume 53, Number 5,Pages <nobr>370

This article is cited in 1 paper

Lasers

Dielectric highly reflective mirror coatings for quantum cascade lasers with 4 - 5 μm emission wavelength

K. A. Podgaetskii^a, A. V. Lobintsov^a, A. I. Danilov^a, A. V. Ivanov^a, M. A. Ladugin^a, A. A. Marmalyuk^abc, V. V. Dyudelev^d, D. A. Mikhailov^d, D. V. Chistyakov^d, A. V. Babichev^e, G. M. Savchenko^d, A. V. Lyutetskiy^d, S. O. Slipchenko^d, N. A. Pikhtin^d, A. G. Gladyshev^e, I. I. Novikov^f, L. Ya. Karachinsky^f, A. Yu. Egorov^fg, G. S. Sokolovskii^d

^a Polyus Research and Development Institute named after M. F. Stel'makh, Moscow
^b National Engineering Physics Institute "MEPhI", Moscow
^c Peoples' Friendship University of Russia, Moscow
^d Ioffe Institute, St. Petersburg
^e Connector Optics LLC, St. Petersburg
^f St. Petersburg National Research University of Information Technologies, Mechanics and Optics
^g Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg

Abstract: The calculation of dielectric mirrors for quantum cascade lasers in the mid-IR range was carried out. Optimal dielectric materials were selected to minimize the absorption of laser radiation. Samples of quantum cascade lasers emitting within the spectral range of 4 – 5 μm with various dielectric highly reflective mirror coatings were made and their characteristics were studied. It was shown that the deposition of highly reflective Si – Si₃N₄ coating on the rear face of the resonator led to the increase in the output optical power of the lasers under study by 71% as compared to the control samples without coatings. The use of Si – SiO₂ coating made it possible to increase the output power of the emitters by 88%.

Keywords: quantum cascade laser, highly reflective mirrors, output power, infrared range.

Received: 01.03.2023