High power laser damage of standard and bend resistant fibres

2009 ◽  
Vol 45 (20) ◽  
pp. 1019 ◽  
Author(s):  
S.L. Logunov ◽  
C.-K. Chien ◽  
D.A. Clark
Keyword(s):  
High Power ◽  
Laser Damage ◽  
High Power Laser ◽  
Power Laser

Research Progress on Near-Infrared High-Power Laser Damage of Liquid Crystal Optical Devices

2020 ◽  
Vol 47 (1) ◽  
pp. 0100002
Author(s):  
刘晓凤 Liu Xiaofeng ◽  
彭丽萍 Peng Liping ◽  
赵元安 Zhao Yuanan ◽  
王玺 Wang Xi ◽  
李大伟 Li Dawei ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
High Power ◽  
Near Infrared ◽  
Optical Devices ◽  
Research Progress ◽  
Laser Damage ◽  
High Power Laser ◽  
Power Laser

Detection of Laser Damage Precursors in High Power Laser Materials by Photothermal Reflectance Microscopy

2014 ◽  
Author(s):  
Ki Soo Chang ◽  
Woo June Choi ◽  
Dong Uk Kim ◽  
Jun Ki Kim ◽  
Kye Sung Lee ◽  
...  
Keyword(s):  
High Power ◽  
Laser Damage ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Materials ◽  
Reflectance Microscopy

Research on laser damage of final optics assembly on high-power laser facility

2014 ◽  
Author(s):  
Dongfeng Zhao ◽  
Rong Wu ◽  
Zunqi Lin ◽  
Jianqiang Zhu ◽  
Li Wang
Keyword(s):  
High Power ◽  
Laser Damage ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Facility

Applications of Ceramic Materials in High Energy Laser Damage

2016 ◽  
Vol 852 ◽  
pp. 336-341
Author(s):  
Lei Zhang ◽  
Bi Bo Shao ◽  
Yong Wu ◽  
Peng Ling Yang ◽  
Meng Meng Tao ◽  
...  
Keyword(s):  
High Power ◽  
Laser Diagnostics ◽  
Ceramic Materials ◽  
High Energy ◽  
Laser Damage ◽  
Irradiation Effect ◽  
High Power Laser ◽  
Power Laser ◽  
Energy Laser ◽  
High Energy Laser

With the consistent improvement of the laser power and energy, further enhancement of the laser resistant ability of the target board is becoming a more and more crucial task in high energy laser diagnostics and irradiation effect studies. Applications of ceramic materials in high energy laser damage were studied. An aluminum panel was coated with ZrO2 ceramic for high power laser proof. Reflectivity and diffuse reflection characteristics of the coating were investigated at different wavelengths. Numerical simulation was conducted to analyze the thermal response of the coating under high power laser radiation. And, related experiments were carried out with high power fiber lasers. Irradiation experiments indicate that the ceramic layer helps to delay the heat conduction and reduce the peak temperature of the target board.

Photo-oxidized Coating on the Optical Materials for High Power Laser Resistance and Waterproof

2012 ◽  
Vol 1401 ◽  
Author(s):  
Yuji Sato ◽  
Eiichi Matsunaga ◽  
Yoshiaki Okamoto ◽  
Masataka Murahara
Keyword(s):  
High Power ◽  
Optical Materials ◽  
Silicone Oil ◽  
Fused Silica ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Ultraviolet Rays ◽  
High Power Laser ◽  
Power Laser ◽  
Excimer Lamp

ABSTRACTA photo-oxidized thin film, which transformed the organic silicone oil into inorganic glass, was coated on optical materials surface by using Xe2 excimer lamp at room temperature. This technique has enabled an optical thin coating capable of transmitting ultraviolet rays [UV] of wavelengths under 200 nm and possessing the characteristics of hardness, strain-free, resistance to high power laser, and resistance to water. UV and IR spectroscopic analysis was carried out for investigation of the oxidized silicone oil. The results revealed that the absorption peak of the CH3 group at 2900 cm-1 decreased as the irradiation time of the excimer lamp increased, and the transmittance of the light in the 172 nm wavelengths conversely became high. The UV transmittance of the silicone oil was 29.2 % before the lamp irradiation; and it improved to 90.6 % after the irradiation for 120 minutes. Moreover, in order to evaluate for resistance to laser damage [J/cm2/10 ns], the films were further irradiated with the Nd: YAG laser of ω [1.06 μm] or 2ω [0.503 μm]. The silica glass substrate had almost same laser tolerance in ω and 2ω, 112 J/cm2 and 113 J/cm2, respectively. The laser damage threshold of the photo-oxidized 100 nm thick film formed on the fused silica substrate was 72 J/cm2 in ω and 107 J/cm2 in 2ω.

Laser damage resistance qualification of large optics for high power laser

2015 ◽  
Author(s):  
L. Lamaignère ◽  
M. Chambonneau ◽  
R. Diaz ◽  
R. Courchinoux ◽  
T. Donval
Keyword(s):  
High Power ◽  
Laser Damage ◽  
High Power Laser ◽  
Power Laser ◽  
Damage Resistance
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