A. V. Babichev, A. Bousseksou, N. A. Pikhtin, I. S. Tarasov, E. V. Nikitina, A. N. Sofronov, D. A. Firsov, L. E. Vorob'ev, I. I. Novikov, L. Ya. Karachinsky, A. Yu. Egorov, “Room-temperature operation of quantum cascade lasers at a wavelength of 5.8 <nobr>$\mu$</nobr>m”, Fizika i Tekhnika Poluprovodnikov, 2016, Volume 50, Issue 10,Pages <nobr>1320

This article is cited in 21 papers

Electronic properties of semiconductors

Room-temperature operation of quantum cascade lasers at a wavelength of 5.8 $\mu$m

A. V. Babichev^ab, A. Bousseksou^c, N. A. Pikhtin^d, I. S. Tarasov^d, E. V. Nikitina^e, A. N. Sofronov^f, D. A. Firsov^f, L. E. Vorob'ev^f, I. I. Novikov^ad, L. Ya. Karachinsky^ad, A. Yu. Egorov^ba

^a Connector Optics LLC, St. Petersburg
^b St. Petersburg National Research University of Information Technologies, Mechanics and Optics
^c Institut d’Electronique Fondamentale, UMR 8622 CNRS, University Paris Saclay, France
^d Ioffe Institute, St. Petersburg
^e Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg
^f Peter the Great St. Petersburg Polytechnic University

Abstract: The room-temperature generation of multiperiod quantum-cascade lasers (QCL) at a wavelength of 5.8 $\mu$m in the pulsed mode is demonstrated. The heterostructure of a quantum-cascade laser based on a heterojunction of InGaAs/InAlAs alloys is grown by molecular-beam epitaxy and incorporates 60 identical cascades. The threshold current density of the stripe laser 1.4 mm long and 22 $\mu$m wide is $\sim$4.8 kA/cm$^2$ at a temperature of 303 K. The maximum power of the optical-radiation output from one QCL face, recorded by a detector, is 88 mW. The actual optical-power output from one QCL face is no less than 150 mW. The results obtained and possible ways of optimizing the structure of the developed quantum-cascade lasers are discussed.

Received: 13.04.2016
Accepted: 18.04.2016