scholarly journals Yb^3+-doped silica glass rod with high optical quality and low optical attenuation prepared by modified sol-gel technology for large mode area fiber

2017 ◽  
Vol 7 (6) ◽  
pp. 2012 ◽  
Author(s):  
Shikai Wang ◽  
Wenbin Xu ◽  
Fan Wang ◽  
Fengguang Lou ◽  
Lei Zhang ◽  
...  
2015 ◽  
Vol 6 (1) ◽  
pp. 69 ◽  
Author(s):  
Shikai Wang ◽  
Wenbin Xu ◽  
Fengguang Lou ◽  
Lei Zhang ◽  
Qinling Zhou ◽  
...  

Fibers ◽  
2013 ◽  
Vol 1 (3) ◽  
pp. 93-100 ◽  
Author(s):  
Shikai Wang ◽  
Fengguang Lou ◽  
Meng Wang ◽  
Chunlei Yu ◽  
Suya Feng ◽  
...  

1992 ◽  
Vol 271 ◽  
Author(s):  
K. Rose ◽  
H. Wolter ◽  
W. Glaubitt

ABSTRACTMultifunctional acrylate alkoxysilanes synthesized from commercial acrylate compounds and mercapto-substituted alkoxysilanes were used as precursors in the development of materials for various purposes. The alkoxysilyl groups are available for the construction of an inorganic backbone by the sol-gel process, and the acrylate groups for building an organic polymeric matrix by thermal or photochemical curing.Tailoring the material properties is achieved by use of specific molecular structures and functionalities within the monomeric compounds. Linear and branched structural units influence the mechanical properties (modulus of elasticity, abrasion resistance, flexural strength). Rapidly UV-cured materials have been prepared for use as primary or secondary coatings for silica optical fibres with improved adhesion under humid conditions. Further organic modification results in polymers which can be used for manufacturing lenses of high optical quality. Preliminary attempts to draw fibres have also been successful.


2014 ◽  
Vol 1613 ◽  
pp. 45-51 ◽  
Author(s):  
J.L. Varela Caselis ◽  
R. Agustín Serrano ◽  
E. Rubio Rosas

ABSTRACTIt has been found that the hybrid materials are a compatible matrix for numerous organic compounds, such as organic dyes, laser dyes, and compounds that exhibit photo-chromic behavior and many more The epoxy-silica system seems to be an excellent matrix for organic dyes and a hybrid material suitable for to be used as coating on glass substrates with good adhesion properties. This work presents a systematic study of the effects of the different amount of using rhodamine 6G as dye on the structure and properties of epoxy–silica hybrids coatings synthesized by the sol-gel process. We have taken advantage on the high solubility of organic dyes in a hybrid organic–inorganic epoxy resin–silica (epoxy–SiO2) matrix to obtain homogeneous, hard and high optical quality red color films on glass substrates. The effects of the content of rhodamine 6 G on the optical and thermal properties of epoxy-silica hybrid films were also examined. Epoxy resin DER 332 cured with an amine (4,4 diamino diphenyl methane) was used as organic component and tetraethyl orthosilicate (TEOS) was used as precursor of the inorganic component. The results showed that at a concentration of rhodamine 0.05% coatings retain adhesion properties similar to coatings without colorant and the coatings are uniform and free of defects. These coatings have the potential to be used as filters and ornamental coatings.


Electronics ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1389
Author(s):  
Paweł Karasiński ◽  
Andrzej Kaźmierczak ◽  
Magdalena Zięba ◽  
Cuma Tyszkiewicz ◽  
Katarzyna Wojtasik ◽  
...  

The technologies of optical planar evanescent wave chemical and biochemical sensors require chemically resistant, high refractive index waveguide films having very good optical transmission properties. In this paper we present such two-compound SiOx:TiOy waveguide films fabricated by using the sol-gel method and the dip-coating technique. These films not only have high optical quality and low propagation losses but also an extremely high refractive index of >1.90 (λ = 632.8 nm). Further we demonstrate efficient and simple sensing structures, designed and fabricated based on these films. For this purpose, grating couplers with a period of Λ = 417 nm were fabricated on the interface between a waveguide film and cover using the single-step nanoimprint method. These sensing structures were tested as planar refractometers. The results of the theoretical analysis on the basis of which the structures were designed as well as results of their experimental characterization are presented in this work. Consequently, the relationship between parameters and the sensitivity of investigated sensing structures is discussed. As a result, the profitable properties of the designed grating coupler sensors are verified and excellent consistency between the results of the theoretical analysis and experimental results is achieved.


2013 ◽  
Vol 35 (9) ◽  
pp. 1752-1755 ◽  
Author(s):  
Shikai Wang ◽  
Zhilan Li ◽  
Chunlei Yu ◽  
Meng Wang ◽  
Suya Feng ◽  
...  

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Yan Ren ◽  
Zhipeng Qin ◽  
Guoqiang Xie ◽  
Zhen Qiao ◽  
Jingui Ma ◽  
...  

We report on a passively Q-switched fiber laser with black phosphorus as saturable absorber. By employing the sol-gel fabricated large-mode-area Tm-doped fiber as gain medium, a high-energy Q-switched fiber laser has been demonstrated which delivers the maximum pulse energy of 11.72 μJ with the pulse width of 660 ns at the wavelength of 1954 nm. Our experimental results indicate that BP Q-switched large-mode-area Tm-doped fiber laser is an effective and reliable approach to generate high-energy pulses at 2 μm.


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