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This article is cited in 7 scientific papers (total in 7 papers)
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High temperature laser generation of quantum-cascade lasers in the spectral region of 8 $\mu$m
V. V. Dyudelevab, S. N. Loseva, V. Yu. Mylnikova, A. V. Babicheva, E. A. Kognovitskayac, S. O. Slipchenkoa, A. V. Lyutetskiya, N. A. Pikhtina, A. G. Gladyshevd, L. Ya. Karachinskybd, I. I. Novikovbd, A. Yu. Egorovb, V. I. Kuchinskiia, G. S. Sokolovskiiab a Ioffe Institute, St. Petersburg
b St. Petersburg National Research University of Information Technologies, Mechanics and Optics
c Saint Petersburg Electrotechnical University "LETI"
d Connector Optics LLC, St. Petersburg
Abstract:
In this paper, we present studies of the characteristics of quantum-cascade lasers with a generation wavelength in the region of 8 $\mu$m at high temperatures of up to + 65$^{\circ}$C. The characteristic temperatures of the temperature dependences of the threshold current and the differential efficiency are determined. Spectral studies showed the presence of two generation lines with a short wavelength of $\sim$7800 nm and a long-wave wavelength of $\sim$8100 nm. The observed competition between the short-wave and long-wave generation lines leads to a nonmonotonic character of the dependence of the radiation intensity on the pump current.
Keywords:
Quantum Cascade Lasers (QCL), Laser Temperature, Pump Current, Threshold Current, Generation Wavelength.
Received: 22.05.2018
Citation:
V. V. Dyudelev, S. N. Losev, V. Yu. Mylnikov, A. V. Babichev, E. A. Kognovitskaya, S. O. Slipchenko, A. V. Lyutetskiy, N. A. Pikhtin, A. G. Gladyshev, L. Ya. Karachinsky, I. I. Novikov, A. Yu. Egorov, V. I. Kuchinskii, G. S. Sokolovskii, “High temperature laser generation of quantum-cascade lasers in the spectral region of 8 $\mu$m”, Fizika Tverdogo Tela, 60:11 (2018), 2251–2254; Phys. Solid State, 60:11 (2018), 2291–2294
Linking options:
https://www.mathnet.ru/eng/ftt9025 https://www.mathnet.ru/eng/ftt/v60/i11/p2251
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