scholarly journals Динамика спектров квантово-каскадных лазеров, генерирующих частотные гребенки в длинноволновом инфракрасном диапазоне

2020 ◽  
Vol 90 (8) ◽  
pp. 1333
Author(s):  
В.В. Дюделев ◽  
Д.А. Михайлов ◽  
А.В. Бабичев ◽  
С.Н. Лосев ◽  
Е.А. Когновицкая ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Frequency Comb ◽  
Laser Generation ◽  
Infrared Range ◽  
Simultaneous Generation ◽  
Frequency Combs ◽  
Longitudinal Modes ◽  
Generation Mode ◽  
Comb Generation ◽  
Cascade Lasers

The studies of the spectral and dynamic characteristics of quantum-cascade lasers emitting in the long-wave infrared range are presented. It has been shown that lasers with a short resonator (~ 1 mm) generating frequency combs in a very wide spectral range. The dynamics of the the frequency comb generation mode was studied. It is shown that the intensity of the longitudinal modes of laser generation changes during the pump pulse. At the same time, simultaneous generation of all longitudinal modes of the frequency comb during flat part of the pumping pulse is observed.

scholarly journals Numerical Simulation of Mid-Infrared Optical Frequency Comb Generation in Chalcogenide As2S3 Microbubble Resonators

Photonics ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 55 ◽  
Author(s):  
Elena A. Anashkina ◽  
Maria P. Marisova ◽  
Arseny A. Sorokin ◽  
Alexey V. Andrianov
Keyword(s):  
Frequency Comb ◽  
Spectral Width ◽  
Optical Frequency Comb ◽  
Infrared Range ◽  
Optical Frequency ◽  
Mid Infrared ◽  
Frequency Combs ◽  
Dispersion Wavelength ◽  
Zero Dispersion Wavelength ◽  
Comb Generation

Mid-infrared optical frequency comb generation in whispering gallery mode microresonators attracts significant interest. Chalcogenide glass microresonators are good candidates for operating in the mid-infrared range. We present the first theoretical analysis of optical frequency comb generation in As2S3 microbubble resonators in the 3–4 μm range. The regime of dissipative soliton plus dispersive wave generation is simulated numerically in the frame of the Lugiato–Lefever equation. Using microbubble geometry allows controlling of the zero-dispersion wavelength and the obtaining of anomalous dispersion needed for soliton generation at the pump wavelength of 3.5 μm, whereas the zero-dispersion wavelength of the analyzed As2S3 glass is ~4.8 μm. It is shown that, for the optimized characteristics of microbubble resonators, optical frequency combs with a spectral width of more than 700 nm (at the level of −30 dB) can be obtained with the low pump power of 10 mW.

scholarly journals Heterogeneous terahertz quantum cascade lasers exceeding 1.9 THz spectral bandwidth and featuring dual comb operation

Nanophotonics ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 237-242 ◽  
Author(s):  
Markus Rösch ◽  
Mattias Beck ◽  
Martin J. Süess ◽  
Dominic Bachmann ◽  
Karl Unterrainer ◽  
...  
Keyword(s):  
Active Region ◽  
Quantum Cascade Laser ◽  
Dynamic Range ◽  
Quantum Cascade Lasers ◽  
Frequency Comb ◽  
Center Frequency ◽  
Spectral Bandwidth ◽  
Frequency Combs ◽  
Quantum Cascade ◽  
Cascade Lasers

AbstractWe report on a heterogeneous active region design for terahertz quantum cascade laser based frequency combs. Dynamic range, spectral bandwidth and output power have been significantly improved with respect to previous designs. When individually operating the lasers, narrow and stable intermode beatnote indicate frequency comb operation up to a spectral bandwidth of 1.1 THz, while in a dispersion-dominated regime a bandwidth up to 1.94 THz at a center frequency of 3 THz can be reached. A self-detected dual-comb setup has been used to verify the frequency comb nature of the lasers.

Harmonically Mode-Locked Quantum Cascade Lasers for Mid-Infrared Frequency Comb Generation

2017 ◽  
Author(s):  
Marco Piccardo ◽  
Dmitry Kazakov ◽  
Paul Chevalier ◽  
Tobias S. Mansuripur ◽  
Feng Xie ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Frequency Comb ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Comb Generation ◽  
Cascade Lasers

Frequency Comb Generation in Terahertz Quantum Cascade Lasers

2018 ◽  
Author(s):  
H. Li ◽  
C. Wang ◽  
Z. Y. Tan ◽  
W. J. Wan ◽  
Z. L. Fu ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Frequency Comb ◽  
Quantum Cascade ◽  
Comb Generation ◽  
Cascade Lasers

scholarly journals Time domain modeling of terahertz quantum cascade lasers for frequency comb generation

2016 ◽  
Vol 24 (20) ◽  
pp. 23232 ◽  
Author(s):  
Petar Tzenov ◽  
David Burghoff ◽  
Qing Hu ◽  
Christian Jirauschek
Keyword(s):  
Time Domain ◽  
Quantum Cascade Lasers ◽  
Frequency Comb ◽  
Domain Modeling ◽  
Quantum Cascade ◽  
Time Domain Modeling ◽  
Comb Generation ◽  
Cascade Lasers
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