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- Title
Spectral Dynamics of Quantum Cascade Lasers Generating Frequency Combs in the Long-Wavelength Infrared Range.
- Authors
Dudelev, V. V.; Mikhailov, D. A.; Babichev, A. V.; Losev, S. N.; Kognovitskaya, E. A.; Lyutetskii, A. V.; Slipchenko, S. O.; Pikhtin, N. A.; Gladyshev, A. G.; Denisov, D. V.; Novikov, I. I.; Karachinsky, L. Ya.; Kuchinskii, V. I.; Egorov, A. Yu.; Sokolovskii, G. S.
- Abstract
We have studied the spectral and dynamic characteristics of quantum cascade lasers emitting in the long-wavelength infrared range. It is shown that lasers with a short cavity (~1 mm) make it possible to obtain frequency combs in a very wide spectral range. We have investigated the spectral dynamics in the frequency comb generation regime. It is demonstrated that the intensity of longitudinal laser modes varies during a pump pulse propagation. We have observed simultaneous generation of all longitudinal modes of a frequency comb over a pump pulse segment with a constant amplitude.
- Subjects
QUANTUM cascade lasers; QUANTUM theory
- Publication
Technical Physics, 2020, Vol 65, Issue 8, p1281
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/S106378422008006X