scholarly journals Terahertz Frequency Combs Exploiting an On-Chip, Solution-Processed, Graphene-Quantum Cascade Laser Coupled-Cavity

ACS Photonics ◽  
2020 ◽  
Vol 7 (12) ◽  
pp. 3489-3498
Author(s):  
Francesco P. Mezzapesa ◽  
Katia Garrasi ◽  
Johannes Schmidt ◽  
Luca Salemi ◽  
Valentino Pistore ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Terahertz Frequency ◽  
Solution Processed ◽  
Frequency Combs ◽  
Quantum Cascade ◽  
On Chip ◽  
Coupled Cavity

scholarly journals On-chip dual-comb based on quantum cascade laser frequency combs

2015 ◽  
Vol 107 (25) ◽  
pp. 251104 ◽  
Author(s):  
G. Villares ◽  
J. Wolf ◽  
D. Kazakov ◽  
M. J. Süess ◽  
A. Hugi ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Frequency ◽  
Frequency Combs ◽  
Quantum Cascade ◽  
On Chip

On-chip THz quantum cascade laser dual frequency combs (Conference Presentation)

2017 ◽  
Author(s):  
Giacomo Scalari ◽  
Markus Rösch ◽  
Gustavo F. Villares ◽  
Lorenzo Bosco ◽  
Mattias Beck ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Dual Frequency ◽  
Frequency Combs ◽  
Quantum Cascade ◽  
On Chip

scholarly journals Mid-infrared quantum cascade laser frequency combs with a microstrip-like line waveguide geometry

2021 ◽  
Vol 118 (7) ◽  
pp. 071101
Author(s):  
Filippos Kapsalidis ◽  
Barbara Schneider ◽  
Matthew Singleton ◽  
Mathieu Bertrand ◽  
Emilio Gini ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Frequency ◽  
Mid Infrared ◽  
Frequency Combs ◽  
Quantum Cascade ◽  
Waveguide Geometry

scholarly journals Tunable and compact dispersion compensation of broadband THz quantum cascade laser frequency combs

2019 ◽  
Vol 27 (15) ◽  
pp. 20231 ◽  
Author(s):  
Francesco P. Mezzapesa ◽  
Valentino Pistore ◽  
Katia Garrasi ◽  
Lianhe Li ◽  
A. Giles Davies ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Dispersion Compensation ◽  
Laser Frequency ◽  
Frequency Combs ◽  
Quantum Cascade

scholarly journals Repetition frequency locking of a terahertz quantum cascade laser emitting at 4.2 THz

2020 ◽  
Vol 13 (1) ◽  
pp. 32-40
Author(s):  
Wen Guan ◽  
Ziping Li ◽  
Kang Zhou ◽  
Wenjian Wan ◽  
Xiaoyu Liao ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Continuous Wave ◽  
Frequency Comb ◽  
Signal To Noise Ratio ◽  
Phase Lock Loop ◽  
Wave Mode ◽  
Repetition Frequency ◽  
Frequency Locking ◽  
Frequency Combs ◽  
Quantum Cascade

The electrically-pumped terahertz quantum cascade laser (QCL) is characterized by high power emission, compact, broad frequency coverage, and so on, which shows abilities for frequency comb operations. Although free-running QCLs can work as frequency combs by designing the laser structure with small group velocity dispersions and/or inserting mirrors to compensate laser intrinsic dispersions, the ideal comb operation can only be obtained by firmly locking the repetition frequency and carrier frequency of a laser. In this work, we have reported a repetition frequency locking of a terahertz QCL emitting around 4.2 THz. When the 6-mm-long laser is operated in continuous wave mode without any locking techniques, the repetition frequency is measured to be ~6.15 GHz with a linewidth of hundred kilohertz. Once a phase lock loop (PLL) is applied to dynamically control the drive current of the QCL, we have demonstrated a successful repetition frequency locking of the laser with a signal to noise ratio of 80 dB. This technique can be employed for the frequency comb and dual-comb operations of terahertz QCLs for high-resolution applications.

On-chip and remote sensing with quantum cascade laser and detector systems (Conference Presentation)

2018 ◽  
Author(s):  
Gottfried Strasser ◽  
Benedikt Schwarz ◽  
Borislav Hinkov ◽  
Rolf Szedlak ◽  
Hermann Detz ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Quantum Cascade Laser ◽  
Quantum Cascade ◽  
On Chip

scholarly journals Evaluating the coherence and time-domain profile of quantum cascade laser frequency combs

2015 ◽  
Vol 23 (2) ◽  
pp. 1190 ◽  
Author(s):  
David Burghoff ◽  
Yang Yang ◽  
Darren J. Hayton ◽  
Jian-Rong Gao ◽  
John L. Reno ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Time Domain ◽  
Laser Frequency ◽  
Frequency Combs ◽  
Quantum Cascade ◽  
Domain Profile

scholarly journals Dual-comb spectroscopy based on quantum-cascade-laser frequency combs

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Gustavo Villares ◽  
Andreas Hugi ◽  
Stéphane Blaser ◽  
Jérôme Faist
Keyword(s):  
Quantum Cascade Laser ◽  
Laser Frequency ◽  
Frequency Combs ◽  
Quantum Cascade
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