F. I. Zubov, N. V. Kryzhanovskaya, È. I. Moiseev, Yu. S. Polubavkina, O. I. Simchuk, M. M. Kulagina, Yu. M. Zadiranov, S. I. Troshkov, A. A. Lipovskii, M. V. Maksimov, A. E. Zhukov, “Laser characteristics of an injection microdisk with quantum dots and its free-space outcoupling efficiency”, Fizika i Tekhnika Poluprovodnikov, 2016, Volume 50, Issue 10,Pages <nobr>1425

This article is cited in 5 papers

Semiconductor physics

Laser characteristics of an injection microdisk with quantum dots and its free-space outcoupling efficiency

F. I. Zubov^ab, N. V. Kryzhanovskaya^ab, È. I. Moiseev^a, Yu. S. Polubavkina^a, O. I. Simchuk^a, M. M. Kulagina^c, Yu. M. Zadiranov^c, S. I. Troshkov^c, A. A. Lipovskii^ab, M. V. Maksimov^abc, A. E. Zhukov^ab

^a Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg
^b Peter the Great St. Petersburg Polytechnic University
^c Ioffe Institute, St. Petersburg

Abstract: The spectral, threshold, and power characteristics of a microdisk laser 31 $\mu$m in diameter with an active region based on InAs/InGaAs quantum dots, operating in the continuous-wave (cw) mode at room temperature are studied. The minimum threshold current density is 0.58 kA/cm$^2$, the subthreshold linewidth of the whispering-gallery mode is 50 pm at a wavelength lying in the range of 1.26–1.27 $\mu$m. The total power emitted into free space reaches $\sim$0.1 mW in the cw mode, whereas the radiation power of the whispering-gallery modes is $\sim$2.8%.

Received: 18.04.2016
Accepted: 28.04.2016