Optimization Of Fluoride Glass Fiber Drawing With Respect To Mechanical Strength

1987 ◽  
Author(s):  
H. W. Schneider ◽  
A. Schoberth ◽  
A. Staudt ◽  
Ch. Gerndt
Keyword(s):  
Mechanical Strength ◽  
Glass Fiber ◽  
Fluoride Glass ◽  
Fiber Drawing

Optically Transparent Polymethyl Methacrylate Composites made with Glass Fibers of Varying Refractive Index

1997 ◽  
Vol 12 (4) ◽  
pp. 1091-1101 ◽  
Author(s):  
Seunggu Kang ◽  
Hongy Lin ◽  
Delbert E. Day ◽  
James O. Stoffer
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Refractive Index ◽  
Mechanical Strength ◽  
Glass Fiber ◽  
Polymethyl Methacrylate ◽  
Optical Transmission ◽  
Annealing Temperature ◽  
Glass Fibers ◽  
Optically Transparent

The dependence of the optical and mechanical properties of optically transparent polymethyl methacrylate (PMMA) composites on the annealing temperature of BK10 glass fibers was investigated. Annealing was used to modify the refractive index (R.I.) of the glass fiber so that it would more closely match that of PMMA. Annealing increased the refractive index of the fibers and narrowed the distribution of refractive index of the fibers, but lowered their mechanical strength so the mechanical properties of composites reinforced with annealed fibers were not as good as for composites containing as-pulled (chilled) glass fibers. The refractive index of as-pulled 17.1 μm diameter fibers (R.I. = 1.4907) increased to 1.4918 and 1.4948 after annealing at 350 °C to 500 °C for 1 h or 0.5 h, respectively. The refractive index of glass fibers annealed at 400 °C/1 h best matched that of PMMA at 589.3 nm and 25 °C, so the composite reinforced with those fibers had the highest optical transmission. Because annealed glass fibers had a more uniform refractive index than unannealed fibers, the composites made with annealed fibers had a higher optical transmission. The mechanical strength of annealed fiber/PMMA composites decreased as the fiber annealing temperature increased. A composite containing fibers annealed at 450 °C/1 h had a tensile strength 26% lower than that of a composite made with as-pulled fibers, but 73% higher than that for unreinforced PMMA. This decrease was avoided by treating annealed fibers with HF. Composites made with annealed and HF (10 vol. %)-treated (for 30 s) glass fibers had a tensile strength (∼200 MPa) equivalent to that of the composites made with as-pulled fibers. However, as the treatment time in HF increased, the tensile strength of the composites decreased because of a significant reduction in diameter of the glass fiber which reduced the volume percent fiber in the composite.

Amplification characteristics of Nd-doped fluoride glass fiber at 1.3-um wavelength

1997 ◽  
Author(s):  
Riu-hua Cheng ◽  
Zhang-hong Qi ◽  
Tie-Qiang Wu ◽  
Hefang Hu
Keyword(s):  
Glass Fiber ◽  
Fluoride Glass

Temperature measurement with a zirconium fluoride glass fiber

1987 ◽  
Vol 26 (4) ◽  
pp. 607 ◽  
Author(s):  
Serge R. Mordon ◽  
Alain H. Cornil ◽  
Jean Marc Brunetaud
Keyword(s):  
Glass Fiber ◽  
Temperature Measurement ◽  
Fluoride Glass ◽  
Zirconium Fluoride

Recent Progress in RGB Laser Oscillation Based on Pr3+-Doped Fluoride Glass Fiber for Laser Display Application

2012 ◽  
Vol 49 (11) ◽  
pp. 110003
Author(s):  
石君 Shi Jun ◽  
唐明 Tang Ming ◽  
付松年 Fu Songnian ◽  
沈平 Shen Ping ◽  
刘德明 Liu Deming
Keyword(s):  
Glass Fiber ◽  
Recent Progress ◽  
Fluoride Glass ◽  
Laser Oscillation ◽  
Laser Display

Infrared Power Delivery in the 2.7 µm Band in Fluoride Glass Fiber

1981 ◽  
Vol 20 (6) ◽  
pp. L392-L394 ◽  
Author(s):  
Kaname Jinguji ◽  
Masaharu Horiguchi ◽  
Seiko Mitachi ◽  
Terutoshi Kanamori ◽  
Toyotaka Manabe
Keyword(s):  
Glass Fiber ◽  
Power Delivery ◽  
Fluoride Glass

Wavelength tunable Q-switch laser in visible region with Pr3+-doped fluoride-glass fiber pumped by GaN diode laser

2013 ◽  
Vol 290 ◽  
pp. 136-140 ◽  
Author(s):  
Junichiro Kojou ◽  
Yojiro Watanabe ◽  
Priyanka Agrawal ◽  
Toshihiro Kamimura ◽  
Fumihiko Kannari
Keyword(s):  
Glass Fiber ◽  
Diode Laser ◽  
Visible Region ◽  
Fluoride Glass ◽  
Wavelength Tunable

Analytic Study of Non-Newtonian Double Layer Coating Liquid Flows in Optical Fiber Manufacturing

2012 ◽  
Vol 224 ◽  
pp. 260-263 ◽  
Author(s):  
Kyoung Jin Kim ◽  
Ho Sang Kwak
Keyword(s):  
Optical Fiber ◽  
Glass Fiber ◽  
Double Layer ◽  
Optical Fibers ◽  
Newtonian Fluid ◽  
Liquid Flow ◽  
Analytic Study ◽  
Fiber Drawing ◽  
Drawing Speed ◽  
Layer Coating

In mass manufacturing of optical fibers, the wet-on-wet polymer resin coating is an efficient process for applying double layer coatings on the glass fiber. This paper presents an analytic study on the behavior of non-Newtonian polymer resins in the double layer coating liquid flow inside a secondary coating die of the optical fiber coating applicator. Based the approximations of fully developed laminar flow and the power law model of non-Newtonian fluid, the coating liquid flow of two immiscible resin layers is modeled for the simplified geometry of capillary annulus, where the surface of glass fiber moves at high fiber drawing speed. The effects of important parameters such as non-Newtonian fluid properties, the coating die size, and fiber drawing speed are investigated on the resin velocity profiles and secondary coating layer thickness.

High Power DF Laser Delivery at 3.8 Microns Through a Fluoride Glass Fiber

1987 ◽  
Vol 19-20 ◽  
pp. 403-406
Author(s):  
G.I. Mazé ◽  
V. Cardin ◽  
J. Caniou ◽  
A. Scraigne ◽  
D. Monnier
Keyword(s):  
Glass Fiber ◽  
High Power ◽  
Fluoride Glass
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