Journal ArticleDOI
Towards high-power mid-infrared emission from a fibre laser
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In this article, a review summarizes the different rare-earth cations and host materials used in mid-infrared fiber laser technology, and discusses the future applications and challenges for the field.Abstract:
Fibre lasers in the mid-infrared regime are useful for a diverse range of fields, including chemical and biomedical sensing, military applications and materials processing. This Review summarizes the different rare-earth cations and host materials used in mid-infrared fibre laser technology, and discusses the future applications and challenges for the field.read more
Citations
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Book ChapterDOI
Physics of inorganic upconverting nanophosphors and their relevance in applications
TL;DR: In this paper , the authors provide an introduction to the physics of nano-upconverters and discuss the relevance of the associated phenomena in applications, including the role played by rare earth ions with their ladder-like scheme of energy levels, critical choice of the host crystal, the factors affecting luminescence quantum yield and the impact on spectroscopy of upconversion of the size-dependent changes in the phonon density of states.
Proceedings ArticleDOI
Laser-Induced Efficiency Improvement for Thulium-doped Fiber Laser Systems
TL;DR: In this paper, it was shown that pumping at the excited state of Thulium high-power fibers leads to a significant cooling and efficiency improvement, and nearly a factor 2 higher efficiency is expected with this technique.
Proceedings ArticleDOI
Nonlinear compression of ultrashort pulses from a high repetition rate Tm-doped fiber laser to sub-5 cycle duration
Martin Gebhardt,Christian Gaida,Fabian Stutzki,Steffen Hädrich,Cesar Jauregui,Jens Limpert,Andreas Tünnermann +6 more
TL;DR: In this paper, nonlinear pulse compression in the wavelength region around 2 µm using two different approaches is presented, and the authors achieve sub-30 fs at 26.5 W of average power or 200 MW peak power.
Proceedings ArticleDOI
Dual picosecond laser emissions at 1.8 μm and 2 μm
Aurélien Benoit,Benoit Beaudou,M. Alharbi,Benoit Debord,Frédéric Gérôme,François Salin,Fetah Benabid +6 more
TL;DR: In this paper, the authors report the generation of two strong ps-laser emissions at 1.8 μm and 2 μm through hydrogen-filled Kagome HC-PCF.
Journal ArticleDOI
2.8 μm pulsed Er<sup>3+</sup>:ZBLAN fiber laser based on external gain modulation
TL;DR: In this paper , the authors reported the generation of stable pulses in a ∼2.8 μ m Er 3+ :ZBLAN fiber laser by varying the population inversion of active ions with an external 1973 nm auxiliary pump source.
References
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Journal ArticleDOI
Optical Constants of Water in the 200-nm to 200-microm Wavelength Region.
George M. Hale,Marvin R. Querry +1 more
TL;DR: Extinction coefficients k(lambda) for water at 25 degrees C were determined through a broad spectral region by manually smoothing a point by point graph of k( lambda) vs wavelength lambda that was plotted for data obtained from a review of the scientific literature on the optical constants of water.
PatentDOI
Quantum cascade laser
TL;DR: In this paper, the authors proposed a quantum cascade laser consisting of a gain region (14) consisting of several layers (20) each including: alternating strata of a first type (28) defining each AllnAs quantum barrier and strata with injection barriers interposed between two of the layers.
Journal ArticleDOI
Laser beam combining for high-power, high-radiance sources
TL;DR: In this paper, the authors provide an overview of beam combining and highlight some of the tradeoffs among beam-combining techniques, including wavelength (spectral) and coherent (phased array) techniques.
Journal ArticleDOI
Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power
TL;DR: A highly-efficient cladding-pumped ytterbium-doped fiber laser generating 1.36 kW of continuous-wave output power at 1.1 mum with 83% slope efficiency and near diffraction-limited beam quality is demonstrated.
Journal ArticleDOI
Evaluation of glass-forming tendency by means of DTA
TL;DR: In this paper, a simple method is described that makes possible fast evaluation of glass-forming tendency on the basis of relative position of the recrystallization, transformation and melting temperatures.