Open AccessИсследование спектров генерации арочных квантово-каскадных лазеров
Author(s) -
А.В. Бабичев,
Д.А. Пашнев,
Д.В. Денисов,
А.Г. Гладышев,
Ю.К. Бобрецова,
С.О. Слипченко,
Л.Я. Карачинский,
И.И. Новиков,
Д.А. Фирсов,
Л.Е. Воробьев,
Н.А. Пихтин,
А.Ю. Егоров
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2020.06.49398.320-19
Subject(s) - lasing threshold , laser , materials science , molecular beam epitaxy , optoelectronics , heterojunction , cascade , wavelength , optics , active layer , quantum well , epitaxy , layer (electronics) , physics , chemistry , nanotechnology , chromatography , thin film transistor
The results of studying the temperature characteristics of arched quantum-cascade lasers of 7-8 μm spectral range with different geometric sizes are presented. Laser heterostructure was grown by molecular beam epitaxy. The active region consisted of 50 cascades based on heteropairs of solid alloys In0.53Ga0.47As/Al0.48In0.52As. Single-mode lasing was demonstrated for lasers with a half-ring diameter of 100 μm and a length of linear section of 1 mm. The maximum side-mode suppression ratio at a temperature of 290 K was 26 dB, the lasing wavelength was 7.73 μm.