Results 11 to 20 of about 1,396,787 (284)

Lateral Modes in Quantum Cascade Lasers

open access: yesPhotonics, 2016
We will examine the waveguide mode losses in ridge-guided quantum cascade lasers. Our analysis illustrates how the low-loss mode for broad-ridge quantum cascade lasers (QCLs) can be a higher-order lateral waveguide mode that maximizes the feedback from ...
Gregory C. Dente, Michael Tilton
doaj   +2 more sources

Coherent averaging quantum cascade laser based dual-comb spectrometer with near infrared light illumination control [PDF]

open access: yesEPJ Web of Conferences, 2023
We present a dual-comb spectrometer based on quantum cascade lasers operating at 7.7 µm with a stabilization scheme that enables coherent averaging. We show that by illuminating a low cost near-infrared light source of the front facet of the quantum ...
Parriaux Alexandre   +6 more
doaj   +1 more source

All-optical adaptive control of quantum cascade random lasers

open access: yesNature Communications, 2020
Tunable quantum cascade lasers can enable applications in multiple areas. Here, the authors demonstrate the adaptive control of the modes and emission spectra of quantum cascade random lasers through a spatially-tailored optical modulation of the active ...
S. Schönhuber   +9 more
doaj   +1 more source

A Comparison Study of Data Link with Medium-Wavelength Infrared Pulsed and CW Quantum Cascade Lasers

open access: yesPhotonics, 2021
In this paper, a comparison study of a quantum cascade laser used for signal transmission by free-space optics is presented. The main goal is to define the capabilities of medium-wavelength infrared lasers operated in pulsed or continuous wave (cw) mode ...
Janusz Mikołajczyk
doaj   +1 more source

Simulating Quantum Cascade Lasers: The Challenge to Quantum Theory

open access: yes, 2023
Quantum cascade lasers provide a variety of challenges to theory, which are outlined in this review: (i) The choice of basis states is discussed, where energy eigenstates are badly defined if the full periodic structure is considered.
Lund University., Wacker, Andreas,
core   +1 more source

Data Link with a High-Power Pulsed Quantum Cascade Laser Operating at the Wavelength of 4.5 µm

open access: yesSensors, 2021
This article is a short study of the application of high-power quantum cascade lasers and photodetectors in medium-infrared optical wireless communications (OWC).
Janusz Mikołajczyk
doaj   +1 more source

Interband cascade lasers for the mid-infrared spectral region [PDF]

open access: yes, 2014
Financial support of this work by the German Ministry of Education and Research (FKZ: 13N12440) and by the European Commission in the framework of the FP7 project 'WideLase’ (grant no.
Dallner, M.   +7 more
core   +1 more source

Dynamic modeling of Terahertz Quantum cascade lasers [PDF]

open access: yes, 2011
In this paper, the influence of the simplifications made in the four-equation-based set of rate equations describing the dynamic behavior of a Quantum Cascade Laser (QCL) is studied.
Petitjean, Yoann   +3 more
core   +1 more source

The Interband Cascade Laser

open access: yesPhotonics, 2020
We review the history, development, design principles, experimental operating characteristics, and specialized architectures of interband cascade lasers for the mid-wave infrared spectral region.
Jerry R. Meyer   +6 more
doaj   +1 more source

Progress towards photonic crystal quantum cascade laser [PDF]

open access: yes, 2004
The work describes recent progress in the design, simulation, implementation and characterisation of photonic crystal (PhC) GaAs-based quantum cascade lasers (QCLs).
Stanley, C.R.   +3 more
core   +1 more source

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