Mid-Infrared quantum-cascade lasers Текст научной статьи по специальности «Электротехника, электронная техника, информационные технологии»

Mid-Infrared quantum-cascade lasers

Grigorii Sokolovskii

Ioffe Institute, St. Petersburg, Russia

gs@mail.ioffe.ru

The report will present an overview of the global state of research and development of the mid-infrared quantum cascade lasers, as well as discussion of the original research results at the Ioffe Institute. Among these, it is worth noting the demonstration of the output power of laser generation of more than 22 W at a wavelength around 4.5 ^m with pulse duration 100 ns and repetition rate 11 kHz and a record-high power exceeding 21 W achieved from QCLs of 8 ^m spectral range with pulse duration 100 ns and repetition rate 11 kHz, the dynamic characteristics of the mid-infrared quantum cascade lasers, as well as the characteristics of quantum cascade detectors for 7-9 ^m range fabricated from the structure of the record-high power quantum-cascade laser with measured sensitivity of 20 mA/W, which is superior to that of similar detectors with a specially optimized structure.

This work is supported by the Russian Science Foundation (project No. 21-72-30020).