Theoretical investigation on effects of group-velocity dispersion on mid-infrared quantum-cascade lasers with Fabry-Perot and ring cavities

2019 ◽  
Author(s):  
Jing Bai ◽  
Hanquan Wang ◽  
Jinchuan Zhang ◽  
Fengqi Liu ◽  
Debao Zhou
Keyword(s):  
Group Velocity ◽  
Theoretical Investigation ◽  
Velocity Dispersion ◽  
Quantum Cascade Lasers ◽  
Group Velocity Dispersion ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Fabry Perot ◽  
Cascade Lasers

Time-domain measurements of group-velocity dispersion in quantum cascade lasers

2008 ◽  
Author(s):  
Hyunyong Choi ◽  
Theodore B. Norris ◽  
Laurent Diehl ◽  
Federico Capasso ◽  
David Bour ◽  
...  
Keyword(s):  
Group Velocity ◽  
Time Domain ◽  
Velocity Dispersion ◽  
Quantum Cascade Lasers ◽  
Group Velocity Dispersion ◽  
Quantum Cascade ◽  
Cascade Lasers

scholarly journals Time-domain upconversion measurements of group-velocity dispersion in quantum cascade lasers

2007 ◽  
Vol 15 (24) ◽  
pp. 15898 ◽  
Author(s):  
Hyunyong Choi ◽  
Laurent Diehl ◽  
Federico Capasso ◽  
David Bour ◽  
Scott Corzine ◽  
...  
Keyword(s):  
Group Velocity ◽  
Time Domain ◽  
Velocity Dispersion ◽  
Quantum Cascade Lasers ◽  
Group Velocity Dispersion ◽  
Quantum Cascade ◽  
Cascade Lasers

scholarly journals Tuning properties of mid-infrared Fabry-Pérot quantum cascade lasers for multiheterodyne spectroscopy

2016 ◽  
Vol 8 (4) ◽  
pp. 113 ◽  
Author(s):  
Lukasz Antoni Sterczewski ◽  
Jonas Westberg ◽  
Gerard Wysocki
Keyword(s):  
High Resolution ◽  
Quantum Cascade Laser ◽  
Quantum Cascade Lasers ◽  
Laser Frequency ◽  
Hole Burning ◽  
Mid Infrared ◽  
Frequency Combs ◽  
Quantum Cascade ◽  
Fabry Perot ◽  
Cascade Lasers

Injection current tuning properties of an 8.5 um Fabry-Pérot mid-infrared quantum cascade laser are evaluated by analyzing the mode-by-mode frequency tuning behavior with an identification of high-noise regimes in a delayed self-heterodyne experiment. We find that modes on the edges of the spectral envelope exhibit anomalous tuning coefficients compared to those in the center. Furthermore, the frequencies of individual modes are susceptible to parasitic etalons, likely causing laser frequency pulling. Despite the complicated tuning behavior, low phase-noise operating regimes exist, and are compatible with high resolution multiheterodyne spectroscopy of gases. Full Text: PDF ReferencesJ. Faist, F. Capasso, D.L. Sivco, C. Sirtori, A.L. Hutchinson, A.Y. Cho, "Quantum Cascade Laser", Science 264 (1994) 553?556. CrossRef A. Hugi, G. Villares, S. Blaser, H.C. Liu, J. Faist, "Mid-infrared frequency comb based on a quantum cascade laser", Nature 492 (2012) 229?233. CrossRef G. Villares, A. Hugi, S. Blaser, J. Faist,"Dual-comb spectroscopy based on quantum-cascade-laser frequency combs", Nat. Commun. 5 (2014) 5192. CrossRef G. Villares, S. Riedi, J. Wolf, D. Kazakov, M.J. Süess, P. Jouy, M. Beck, J. Faist, "Dispersion engineering of quantum cascade laser frequency combs", Optica 3 (2016) 252. CrossRef Y. Wang, M.G. Soskind, W. Wang, G. Wysocki, "High-resolution multi-heterodyne spectroscopy based on Fabry-Perot quantum cascade lasers", Appl. Phys. Lett. 104 (2014) 31114. CrossRef A. Hangauer, J. Westberg, E. Zhang, G. Wysocki, "Wavelength modulated multiheterodyne spectroscopy using Fabry-Pérot quantum cascade lasers", Opt. Express 24 (2016) 25298. CrossRef D. Burghoff, Y. Yang, D.J. Hayton, J.-R. Gao, J.L. Reno, Q. Hu, "Evaluating the coherence and time-domain profile of quantum cascade laser frequency combs", Opt. Express 23 (2015) 1190?1202. CrossRef A. Gordon, C.Y. Wang, L. Diehl, F.X. Kärtner, A. Belyanin, D. Bour, S. Corzine, G. Höfler, H.C. Liu, H. Schneider, T. Maier, M. Troccoli, J. Faist, F. Capasso, "Multimode regimes in quantum cascade lasers: From coherent instabilities to spatial hole burning", Phys. Rev. A 77 (2008). CrossRef S. Blaser, D.A. Yarekha, L. Hvozdara, Y. Bonetti, A. Muller, M. Giovannini, J. Faist, "Room-temperature, continuous-wave, single-mode quantum-cascade lasers at ?=5.4?m", Appl. Phys. Lett. 86 (2005) 41109. CrossRef S. Schiller, "Spectrometry with frequency combs", Opt. Lett. 27 (2002) 766?768. CrossRef T. Tsai, G. Wysocki, "Active wavelength control of an external cavity quantum cascade laser", Appl. Phys. B Lasers Opt. 109 (2012) 415?421. CrossRef

Mid-Infrared Standoff Spectroscopy Using a Supercontinuum Laser with Compact Fabry–Pérot Filter Spectrometers

2018 ◽  
Vol 72 (4) ◽  
pp. 634-642 ◽  
Author(s):  
Jakob Kilgus ◽  
Kristina Duswald ◽  
Gregor Langer ◽  
Markus Brandstetter
Keyword(s):  
Real Time ◽  
Quantum Cascade Lasers ◽  
Spatial Coherence ◽  
Mid Infrared ◽  
High Brightness ◽  
Quantum Cascade ◽  
Ir Sources ◽  
Standoff Detection ◽  
Fabry Perot ◽  
Cascade Lasers

Mid-infrared (MIR) supercontinuum (SC) lasers are an attractive new option in the field of IR spectroscopy, especially for standoff detection. Supercontinuum radiation unites high brightness, high spatial coherence, and broadband spectral coverage, thereby surpassing thermal IR sources and challenging quantum cascade lasers. The employed SC source operates in the spectral region of 1.2–4.6 µm, filling the spectral gap where quantum cascade lasers lack broader availability. In this work, the SC radiation was recorded by compact Fabry–Pérot filter spectrometers ideally suited for sensitive standoff detection with real-time capability. The noise performance of the setup and measurements of different substances at standoff distances are presented, e.g., of different paints on a metal surface and an explosive precursor. Furthermore, the real-time capability of the setup is demonstrated by monitoring the evaporation of liquid 2-propanol.

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