Dual-Frequency Generation in Quantum Cascade Lasers of the 8-μm Spectral Range


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Abstract

Results of an investigation of quantum cascade lasers of the 8-μm 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.

About the authors

V. V. Dudelev

Ioffe Institute; ITMO University

Author for correspondence.
Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 197101

S. N. Losev

Ioffe Institute

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021

V. Yu. Mylnikov

Ioffe Institute

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021

A. V. Babichev

Ioffe Institute

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021

E. A. Kognovitskaya

St. Petersburg Electrotechnical University

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 197022

S. O. Slipchenko

Ioffe Institute

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021

A. V. Lutetskii

Ioffe Institute

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021

N. A. Pikhtin

Ioffe Institute

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021

A. G. Gladyshev

Connector Optics LLC

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194292

L. Ya. Karachinskii

Connector Optics LLC

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194292

I. I. Novikov

ITMO University; Connector Optics LLC

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 197101; St. Petersburg, 194292

A. Yu. Egorov

ITMO University

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 197101

V. I. Kuchinskii

Ioffe Institute

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021

G. S. Sokolovskii

Ioffe Institute; ITMO University

Email: gs@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 197101

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