Quantum cascade lasers (QCLs) have received enormous attention from the scientific community due to their broad range of applications in a wide variety of industries, agriculture, healthcare, environmental protection, and many other scientific and technical fields. In this article, in addition to a review of the main applications and the state of research and development of high-power QCLs in the mid-infrared range, we consider the features of their manufacturing technology that make it possible to obtain a high peak power and discuss the effect of overheating of the active region on the output optical power and spectral characteristics. A comparison is made of the characteristics of QCLs with the same cavity parameters but with different active regions made on the basis of substrate-matched or strained heteropairs, which provides a different energy barrier between the upper laser level and the continuum. It is shown that the use of strained heteropairs in the active region of a QCL provides an almost twofold increase in the characteristic temperature T0 as well as a significantly higher efficiency and an increase in the maximum output optical power to over 21 W, which is a world record for a single stripe QCL with a 8μm spectral range.
Keywords: quantum cascade laser, heterostructure, mid-infrared range, chirp, heat sink PACS:42.55.Px, 42.60.−v, 78.67.Pt (all) DOI:10.3367/UFNe.2023.05.039543 URL: https://ufn.ru/en/articles/2024/1/i/ 2-s2.0-85186555343 2024PhyU...67...92D Citation: Dudelev V V, Cherotchenko E D, Vrubel I I, Mikhailov D A, Chistyakov D V, Mylnikov V Yu, Losev S N, Kognovitskaya E A, Babichev A V, Lutetskiy A V, Slipchenko S O, Pikhtin N A, Abramov A V, Gladyshev A G, Podgaetskiy K A, Andreev A Yu, Yarotskaya I V, Ladugin M A, Marmalyuk A A, Novikov I I, Kuchinskii V I, Karachinsky L Ya, Egorov A Yu, Sokolovskii G S "Quantum cascade lasers for the 8-μm spectral range: technology, design, and analysis" Phys. Usp.67 92–98 (2024)
Received: 3rd, September 2023, accepted: 22nd, May 2023
Оригинал: Дюделев B B, Черотченко Е Д, Врубель И И, Михайлов Д А, Чистяков Д В, Мыльников В Ю, Лосев С Н, Когновицкая Е А, Бабичев А В, Лютецкий А В, Слипченко С О, Пихтин Н А, Абрамов А В, Гладышев А Г, Подгаецкий К А, Андреев А Ю, Яроцкая И В, Ладугин М А, Мармалюк А А, Новиков И И, Кучинский В И, Карачинский Л Я, Егоров А Ю, Соколовский Г С «Квантово-каскадные лазеры для спектрального диапазона 8 мкм: технология, дизайн и анализ» УФН194 98–105 (2024); DOI: 10.3367/UFNr.2023.05.039543