Spectral tuning and mode competition of quantum cascade lasers studied by time-resolved Fourier transform spectroscopy

2006 ◽  
Author(s):  
F. Fuchs ◽  
B. Kirn ◽  
Ch. Mann ◽  
Q. Yang ◽  
W. Bronner ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Quantum Cascade Lasers ◽  
Fourier Transform Spectroscopy ◽  
Mode Competition ◽  
Spectral Tuning ◽  
Time Resolved ◽  
Quantum Cascade ◽  
Cascade Lasers

Time-resolved orientation detection system with quantum cascade lasers

2018 ◽  
Vol 89 (7) ◽  
pp. 073101
Author(s):  
Ke Ye ◽  
Xiaowei Chen ◽  
Wenwen Zhang ◽  
Yankun Lv ◽  
Lingpu Meng ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Detection System ◽  
Time Resolved ◽  
Quantum Cascade ◽  
Orientation Detection ◽  
Cascade Lasers

Time-resolved measurement of the local lattice temperature in terahertz quantum cascade lasers

2008 ◽  
Vol 92 (10) ◽  
pp. 101116 ◽  
Author(s):  
Miriam S. Vitiello ◽  
Gaetano Scamarcio ◽  
Vincenzo Spagnolo
Keyword(s):  
Quantum Cascade Lasers ◽  
Lattice Temperature ◽  
Time Resolved ◽  
Quantum Cascade ◽  
Local Lattice ◽  
Cascade Lasers

scholarly journals Time-resolved spectral characterization of ring cavity surface emitting and ridge-type distributed feedback quantum cascade lasers by step-scan FT-IR spectroscopy

2014 ◽  
Vol 22 (3) ◽  
pp. 2656 ◽  
Author(s):  
Markus Brandstetter ◽  
Andreas Genner ◽  
Clemens Schwarzer ◽  
Elvis Mujagic ◽  
Gottfried Strasser ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Ring Cavity ◽  
Distributed Feedback ◽  
Cavity Surface ◽  
Time Resolved ◽  
Quantum Cascade ◽  
Ft Ir ◽  
Cascade Lasers ◽  
Ft Ir Spectroscopy

scholarly journals Monolithic, Optically Coupled, Multi-Section Mid-IR Quantum Cascade Lasers

Photonics ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 583
Author(s):  
Kamil Pierściński ◽  
Dorota Pierścińska ◽  
Grzegorz Sobczak ◽  
Aleksandr Kuźmicz ◽  
Krzysztof Chmielewski ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Single Mode ◽  
Wavelength Shift ◽  
Time Resolved ◽  
Design Modification ◽  
Quantum Cascade ◽  
Continuous Tuning ◽  
Wide Range ◽  
Cascade Lasers ◽  
Coupled Cavity

Mid-infrared (mid-IR λ ≈ 3–12 μm), single-mode-emission Quantum Cascade Lasers (QCLs) are of significant interest for a wide range of applications, especially as the laser sources are chosen for laser absorption spectroscopy. In this work, we present the design, fabrication and characterization of multi-section, coupled-cavity, mid-IR quantum cascade lasers. The purpose of this work is to propose a design modification for a coupled-cavity device, yielding a single-mode emission with a longer range of continuous tuning during the pulse, in contrast to a 2-section device. This effect was obtained and demonstrated in the work. The proposed design of a 3-section coupled-cavity QCL allows for a single-mode emission with 35 dB side-mode suppression ratio. Additionally, the time-resolved spectra of the wavelength shift during pulse operation, show a continuous tuning of ~3 cm−1 during the 2 μs pulse. The devices were fabricated in a slightly modified, standard laser process using dry etching.

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