Loss mechanisms of quantum cascade lasers operating close to optical phonon frequencies

2011 ◽  
Vol 109 (10) ◽  
pp. 102407 ◽  
Author(s):  
F. Castellano ◽  
A. Bismuto ◽  
M. I. Amanti ◽  
R. Terazzi ◽  
M. Beck ◽  
...  
Keyword(s):  
Optical Phonon ◽  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Cascade Lasers ◽  
Loss Mechanisms

GaAs/AlGaAs Quantum Cascade Lasers Based on Double Resonant Electron – LO Phonon Transitions

2005 ◽  
Vol 494 ◽  
pp. 25-30 ◽  
Author(s):  
A. Mirčetić ◽  
D. Indjin ◽  
V. Milanović ◽  
P. Harrison ◽  
Z. Ikonić ◽  
...  
Keyword(s):  
Optical Phonon ◽  
Quantum Cascade Lasers ◽  
Longitudinal Optical ◽  
Equation Model ◽  
Longitudinal Optical Phonon ◽  
Quantum Cascade ◽  
Resonant Electron ◽  
Efficient Extraction ◽  
Output Characteristics ◽  
Cascade Lasers

In this paper a procedure for the global optimization of mid-infrared GaAs/AlGaAs quantum cascade lasers that relies on the method of simulated annealing is presented. We propose a double longitudinal optical phonon resonance design obtained via a ladder of three states, with subsequent pairs separated by optical phonon energy. Addition of an extra level decreases the lower laser level population by enabling an efficient extraction into the injector region. The output characteristics of the optimized structures are calculated using the full self–consistent rate equation model, which includes all of the relevant scattering mechanisms. We also presented the experimentally measured output characteristics of an initial device, which are in agreement with the numerically calculated values, confirming the good design capabilities of the applied procedure.

Nonequilibrium optical phonon generation by steady-state electron transport in quantum-cascade lasers

2002 ◽  
Vol 80 (23) ◽  
pp. 4303-4305 ◽  
Author(s):  
Vincenzo Spagnolo ◽  
Gaetano Scamarcio ◽  
Mariano Troccoli ◽  
Federico Capasso ◽  
Claire Gmachl ◽  
...  
Keyword(s):  
Steady State ◽  
Electron Transport ◽  
Optical Phonon ◽  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
State Electron ◽  
Phonon Generation ◽  
Cascade Lasers

Terahertz bound-to-continuum quantum-cascade lasers based on optical-phonon scattering extraction

2005 ◽  
Vol 86 (18) ◽  
pp. 181101 ◽  
Author(s):  
Giacomo Scalari ◽  
Nicolas Hoyler ◽  
Marcella Giovannini ◽  
Jérôme Faist
Keyword(s):  
Optical Phonon ◽  
Phonon Scattering ◽  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Optical Phonon Scattering ◽  
Cascade Lasers

Quantum cascade lasers with voltage defect of less than one longitudinal optical phonon energy

2009 ◽  
Vol 94 (25) ◽  
pp. 251114 ◽  
Author(s):  
Matthew D. Escarra ◽  
Anthony J. Hoffman ◽  
Kale J. Franz ◽  
Scott S. Howard ◽  
Richard Cendejas ◽  
...  
Keyword(s):  
Optical Phonon ◽  
Quantum Cascade Lasers ◽  
Longitudinal Optical ◽  
Phonon Energy ◽  
Longitudinal Optical Phonon ◽  
Quantum Cascade ◽  
Cascade Lasers

PbTe/PbS Multilayer Mirror for EuTe/PbTe Surface Emitting Quantum Cascade Lasers

2009 ◽  
Vol 129 (11) ◽  
pp. 799-801
Author(s):  
Daoshe Cao ◽  
Taiki Yamano ◽  
Yoku Inoue ◽  
Akihiro Ishida
Keyword(s):  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Multilayer Mirror ◽  
Cascade Lasers

Beam Pattern Investigation of Terahertz Quantum Cascade Lasers

PIERS Online ◽  
2008 ◽  
Vol 4 (2) ◽  
pp. 267-270 ◽  
Author(s):  
Saeed Fathololoumi ◽  
Dayan Ban ◽  
Hui Luo ◽  
Peter Grant ◽  
Sylvain R. Laframboise ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Beam Pattern ◽  
Quantum Cascade ◽  
Cascade Lasers
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