scholarly journals Anisotropic thermal analyses of a high efficiency Tm:YAP slab laser and its intra-cavity pumping for Ho lasers

2020 ◽  
Vol 28 (14) ◽  
pp. 20930 ◽  
Author(s):  
Haizhou Huang ◽  
Huawen Hu ◽  
Zixiong Lin ◽  
Jing Deng ◽  
Jianhong Huang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Thermal Analyses ◽  
Slab Laser

Design and Evaluation of the Fresnel-Lens Based Solar Concentrator System Through a Statistical-Algorithmic Approach

2018 ◽  
Author(s):  
Hassan Qandil ◽  
Weihuan Zhao
Keyword(s):  
High Temperature ◽  
High Efficiency ◽  
Incident Light ◽  
Thermal Analyses ◽  
Solar Spectrum ◽  
Chromatic Aberration ◽  
Fresnel Lens ◽  
Optimum Number ◽  
Solar Concentrator ◽  
Receiver System

A novel non-imaging Fresnel-lens-based solar concentrator-receiver system has been investigated to achieve high-efficiency photon and heat outputs with minimized effect of chromatic aberrations. Two types of non-imaging Fresnel lenses, a spot-flat lens and a dome-shaped lens, are designed through a statistical algorithm incorporated in MATLAB. The algorithm optimizes the lens design via a statistical ray-tracing methodology of the incident light, considering the chromatic aberration of solar spectrum, the lens-receiver spacing and aperture sizes, and the optimum number of prism grooves. An equal-groove-width of the Poly-methyl-methacrylate (PMMA) prisms is adopted in the model. The main target is to maximize ray intensity on the receiver’s aperture, and therefore, achieve the highest possible heat flux and output concentration temperature. The algorithm outputs prism and system geometries of the Fresnel-lens concentrator. The lenses coupled with solar receivers are simulated by COMSOL Multiphysics. It combines both optical and thermal analyses for the lens and receiver to study the optimum lens structure for high solar flux output. The optimized solar concentrator-receiver system can be applied to various devices which require high temperature inputs, such as concentrated photovoltaics (CPV), high-temperature stirling engine, etc.

High efficiency Ho:YLF slab laser with 125 Wcontinuous-wave output power

2021 ◽  
Author(s):  
Qingchen Wang ◽  
Qunlong Long ◽  
Yuan Gao ◽  
Jianyong Xue ◽  
Zhaopeng Xu ◽  
...  
Keyword(s):  
Output Power ◽  
High Efficiency ◽  
Slab Laser

High efficiency Tm:YAG slab laser with hundred-watts-level output power

2016 ◽  
Vol 55 (10) ◽  
pp. 2498 ◽  
Author(s):  
Pian Liu ◽  
Lin Jin ◽  
Xuan Liu ◽  
Haitao Huang ◽  
Deyuan Shen
Keyword(s):  
Output Power ◽  
High Efficiency ◽  
Slab Laser

scholarly journals High-efficiency RF signal coupled to a CO2 waveguide slab laser

2005 ◽  
Vol 13 (12) ◽  
pp. 4607 ◽  
Author(s):  
R. Villagómez ◽  
R. López
Keyword(s):  
High Efficiency ◽  
Slab Laser ◽  
Rf Signal

High-efficiency diode-pumped Nd:YVO_4 slab laser

1993 ◽  
Vol 18 (12) ◽  
pp. 968 ◽  
Author(s):  
J. E. Bernard ◽  
A. J. Alcock
Keyword(s):  
High Efficiency ◽  
Slab Laser ◽  
Diode Pumped

High-power and high-efficiency LD pumped Yb:YAG micro-thickness slab laser

2004 ◽  
Author(s):  
K. Sueda ◽  
Y. Tsujioka ◽  
H. Takahashi ◽  
S. Kawato ◽  
T. Kobayashi
Keyword(s):  
High Power ◽  
High Efficiency ◽  
Slab Laser

Simple high-efficiency diode-pumped Nd:YVO4 slab laser

2001 ◽  
Author(s):  
Prasanta Kundu ◽  
Joseph S. Chakkalakal ◽  
Chandrashekaran Natarajan
Keyword(s):  
High Efficiency ◽  
Slab Laser ◽  
Diode Pumped

Diode-pumped high-efficiency high-brightness Q-switched ND:YAG slab laser

1997 ◽  
Vol 22 (15) ◽  
pp. 1168 ◽  
Author(s):  
Errico Armandillo ◽  
Callum Norrie ◽  
Alberto Cosentino ◽  
Paolo Laporta ◽  
Paul Wazen ◽  
...  
Keyword(s):  
High Efficiency ◽  
High Brightness ◽  
Slab Laser ◽  
Diode Pumped

scholarly journals High-Efficiency Mini-Slab Laser Based on Tm-doped Double Tungstate Crystal

2021 ◽  
Vol 2067 (1) ◽  
pp. 012009
Author(s):  
S M Vatnik ◽  
I A Vedin ◽  
M D Kolker ◽  
A A Pavlyuk
Keyword(s):  
Output Power ◽  
Duty Cycle ◽  
Room Temperature ◽  
High Efficiency ◽  
Laser Cavity ◽  
Active Elements ◽  
Double Tungstate ◽  
Slab Laser ◽  
Cavity Design ◽  
Tungstate Crystal

Abstract We report on highly-efficient room-temperature lasing in 5at.%Tm:KLu(WO4)2 mini-slabs side-pumped by a 35W diode bar. QCW (duty cycle ∼ 14%) output power of 1.47 W at 1908 nm has been demonstrated with optical and slope efficiencies being of 33 and 43% respectively. In our experiments, we used samples of active elements produced in the slabs form with Brewster’s angle cut faces and original laser cavity design.

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