Journal ArticleDOI
Towards high-power mid-infrared emission from a fibre laser
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TLDR
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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Journal ArticleDOI
Superior photoluminescence (PL) of Pr 3+ -In, compared to Pr 3+ -Ga, selenide-chalcogenide bulk glasses and PL of optically-clad fiber
Hesham Sakr,David Furniss,Zhuoqi Tang,L. Sojka,N. A. Moneim,Emma R. Barney,Slawomir Sujecki,Trevor M. Benson,Angela B. Seddon +8 more
TL;DR: Indium has the same outer electronic-structure as gallium for solvating the RE-ions and promotes lower phonon energy locally around the REThe photoluminescent-(PL)-properties of Pr³⁺-ions in indium-containing selenide-chalcogenide bulk-glasses are found to be superior when compared with gallium- containing analogues.
Journal ArticleDOI
Precisely controllable fabrication of Er3+-doped glass ceramic fibers: novel mid-infrared fiber laser materials
Shiliang Kang,Zaijin Fang,Zaijin Fang,Xiongjian Huang,Zhi Chen,Dandan Yang,Xiudi Xiao,Jianrong Qiu,Guoping Dong +8 more
TL;DR: In this paper, the authors demonstrated remarkably enhanced 2.7 μm emission in glass-ceramic (GC) fibers containing NaYF4:Er3+ nanocrystals with 980 nm excitation for the first time.
Journal ArticleDOI
High-Power Broadly Tunable 3- $\mu\hbox{m}$ Fiber Laser for the Measurement of Optical Fiber Loss
TL;DR: In this paper, a fluoride fiber laser was used to provide accurate measurements of the background scattering loss and the degree of water incorporation in the rare earth-doped core of commercial double-clad fluoride fiber; the high power allows accurate core loss measurements for quite lossy fibers.
Journal ArticleDOI
High Power Diode-Seeded Fiber Amplifiers at 2 μm—From Architectures to Applications
TL;DR: In this article, the authors present a TDFA system with a peak power of 130 kW and a pulse energy of 5μJ in picosecond mode, while demonstrating user-defined pulse-shaping capabilities at millijoule pulse energy levels in the nanosecond regime from essentially the same amplifier system.
Journal ArticleDOI
Mid IR hollow core fiber gas laser emitting at 4.6 μm
Farzin Beygi Azar Aghbolagh,Vasudevan Nampoothiri,Benoit Debord,Frédéric Gérôme,Luca Vincetti,Fetah Benabid,Wolfgang Rudolph +6 more
TL;DR: The observed dependence of the laser output on gas pressure was shown to be a result of line broadening and relaxation rates.
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.