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, “Dual-frequency generation in quantum cascade lasers of the 8-<nobr>$\mu$</nobr>m spectral range”, Optics and Spectroscopy, 2018, Volume 125, Issue 3,Pages <nobr>387

This article is cited in 24 papers

Laser physics and laser optics

Dual-frequency generation in quantum cascade lasers of the 8-$\mu$m spectral range

V. V. Dyudelev^ab, S. N. Losev^a, V. Yu. Mylnikov^a, A. V. Babichev^a, E. A. Kognovitskaya^c, S. O. Slipchenko^a, A. V. Lyutetskiy^a, N. A. Pikhtin^a, A. G. Gladyshev^d, L. Ya. Karachinsky^bd, I. I. Novikov^bd, A. Yu. Egorov^b, V. I. Kuchinskii^a, G. S. Sokolovskii^ab

^a Ioffe Institute, St. Petersburg, 194021, Russia
^b ITMO University, St. Petersburg, 197101, Russia
^c St. Petersburg Electrotechnical University, St. Petersburg, 197022, Russia
^d Connector Optics LLC, St. Petersburg, 194292, Russia

Abstract: Results of an investigation of quantum cascade lasers of the 8-$\mu$m spectral range generating dual-frequency radiation at room temperature are presented. The dependences of radiation intensity for two lines of laser generation obtained as a result of investigation of the generation spectra revealed the presence of saturation and decay of the long-wavelength line of generation and linear growth of the intensity of the short-wavelength one. Based on analysis of the obtained data, a mechanism of the dual-frequency generation in the studied QCL samples is proposed Generation.

Received: 31.05.2018

DOI: 10.21883/OS.2018.09.46556.147-18