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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2025, Volume 51, Issue 11, Pages 52–56
DOI: https://doi.org/10.61011/PJTF.2025.11.60489.20280 (Mi pjtf7937) 		 
Single-mode lasing on radial modes in ring cavity quantum-cascade lasers

A. V. Babicheva, N. Yu. Kharinb, E. S. Kolodeznyia, D. S. Papyleva, D. A. Mikhailovc, G. V. Voznyukc, M. I. Mitrofanovcd, V. V. Dyudelevc, A. G. Gladysheva, S. O. Slipchenkoc, A. V. Lyutetskiyc, V. P. Evtikhievc, V. Yu. Panevinb, L. Ya. Karachinskya, I. I. Novikova, G. S. Sokolovskiic, N. A. Pikhtinc, A. Yu. Egorova

a St. Petersburg National Research University of Information Technologies, Mechanics and Optics
b Peter the Great St. Petersburg Polytechnic University
c Ioffe Institute, St. Petersburg
d Submicron Heterostructures for Microelectronics Research and Engineering Center, Russian Academy of Sciences, St. Petersburg
Full-text PDF (338 kB)
DOI: https://doi.org/10.61011/PJTF.2025.11.60489.20280
Abstract: The results of stable single-mode lasing in ring cavity quantum-cascade lasers are presented. The slits of the second-order grating with a variable etching depth during movement along the ring cavity are formed by direct ion-beam lithography. Single-mode lasing at a wavelength of 7.65 $\mu$m with a signal-to-noise suppression ratio of (22–25) dB just above the laser threshold is obtained. Increasing the current pumping by 40% leads to an increase in the side-mode suppression ratio up to 28 dB.
Keywords: superlattices, quantum cascade laser, selective ring cavity, single-mode lasing, indium phosphide, direct ion-beam lithography.
Funding agency Grant number
Russian Science Foundation 20-79-10285
Received: 12.02.2025
Revised: 04.03.2025
Accepted: 11.03.2025
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. V. Babichev, N. Yu. Kharin, E. S. Kolodeznyi, D. S. Papylev, D. A. Mikhailov, G. V. Voznyuk, M. I. Mitrofanov, V. V. Dyudelev, A. G. Gladyshev, S. O. Slipchenko, A. V. Lyutetskiy, V. P. Evtikhiev, V. Yu. Panevin, L. Ya. Karachinsky, I. I. Novikov, G. S. Sokolovskii, N. A. Pikhtin, A. Yu. Egorov, “Single-mode lasing on radial modes in ring cavity quantum-cascade lasers”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 51:11 (2025), 52–56
Citation in format AMSBIB
\Bibitem{BabKhaKol25}
\by A.~V.~Babichev, N.~Yu.~Kharin, E.~S.~Kolodeznyi, D.~S.~Papylev, D.~A.~Mikhailov, G.~V.~Voznyuk, M.~I.~Mitrofanov, V.~V.~Dyudelev, A.~G.~Gladyshev, S.~O.~Slipchenko, A.~V.~Lyutetskiy, V.~P.~Evtikhiev, V.~Yu.~Panevin, L.~Ya.~Karachinsky, I.~I.~Novikov, G.~S.~Sokolovskii, N.~A.~Pikhtin, A.~Yu.~Egorov
\paper Single-mode lasing on radial modes in ring cavity quantum-cascade lasers
\jour Pisma v Zhurnal Tekhnicheskoi Fiziki
\yr 2025
\vol 51
\issue 11
\pages 52--56
\mathnet{http://mi.mathnet.ru/pjtf7937}
\elib{https://elibrary.ru/item.asp?id=82416665}
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