Reduction of water penetration into optical fiber preforms for improving preform shaping based on CO2 laser (Conference Presentation)

2020 ◽  
Author(s):  
Ali A. Jasim ◽  
Ondrej Podrazký ◽  
Pavel Peterka ◽  
Michal Kamrádek ◽  
Filip Todorov ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Co2 Laser ◽  
Water Penetration ◽  
Fiber Preforms

OH Diffusion Control in the Shaped Optical Fiber Preforms Based on CO2 Laser

2020 ◽  
Author(s):  
Ali A. Jasim ◽  
Ondřej Podrazký ◽  
Pavel Peterka ◽  
Filip Todorov ◽  
Michal Kamrádek ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Co2 Laser ◽  
Diffusion Control ◽  
Fiber Preforms

scholarly journals Impact of shaping optical fiber preforms based on grinding and a CO2 laser on the inner-cladding losses of shaped double-clad fibers

2020 ◽  
Vol 28 (9) ◽  
pp. 13601 ◽  
Author(s):  
Ali. A. Jasim ◽  
Ondrej Podrazký ◽  
Pavel Peterka ◽  
Michal Kamrádek ◽  
Ivan Kašík ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Co2 Laser ◽  
Fiber Preforms

Cladding shaping of optical fiber preforms via CO2 laser machining (Conference Presentation)

2020 ◽  
Author(s):  
Peter C. Shardlow ◽  
Robert Standish ◽  
Martin N. Velazquez ◽  
Jayanta Sahu ◽  
Andy Clarkson
Keyword(s):  
Optical Fiber ◽  
Co2 Laser ◽  
Laser Machining ◽  
Fiber Preforms

scholarly journals An Optical Fiber Waveguicte System for CO2 Laser

1985 ◽  
Vol 5 (3) ◽  
pp. 289-292
Author(s):  
Keizo Kawai ◽  
Kazuo Matai ◽  
Hakuto Ou ◽  
Kenji Sakurai ◽  
Mitsuhiro Goto ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Co2 Laser

Practical Three-Dimensional Profiling of Optical Fiber Preforms

1982 ◽  
Vol 30 (4) ◽  
pp. 370-381
Author(s):  
P.-L. Francois ◽  
I. Sasaki ◽  
M.J. Adams
Keyword(s):  
Optical Fiber ◽  
Three Dimensional ◽  
Fiber Preforms

scholarly journals Instrumentation for Simultaneous Non-Destructive Profiling of Refractive Index and Rare-Earth-Ion Distributions in Optical Fiber Preforms

Instruments ◽  
2018 ◽  
Vol 2 (4) ◽  
pp. 23 ◽  
Author(s):  
Marilena Vivona ◽  
Michalis Zervas
Keyword(s):  
Refractive Index ◽  
Rare Earth ◽  
Optical Fiber ◽  
Communication Systems ◽  
Optical Tomography ◽  
Dopant Distribution ◽  
Fiber Preform ◽  
Rare Earth Ion ◽  
Non Destructive ◽  
Fiber Preforms

We present a non-destructive technique for a combined evaluation of refractive index and active-dopant distribution in the same position along a rare-earth-doped optical fiber preform. The method relies on luminescence measurements, analyzed through an optical tomography technique, to define the active dopant distribution and ray-deflection measurements to calculate the refractive index profile. The concurrent evaluation of both the preform refractive index and the active dopant profiles allows for an accurate establishment of the dopant distribution within the optical core region. This combined information is important for the optimization and development of a range of advanced fibers, used, for example, in a high-power fiber lasers and modern spatial-division-multiplexing optical communication systems. In addition, the non-destructive nature allows the technique to be used to identify the most appropriate preform segment, thus increasing fiber yield and reducing development cycles. We demonstrate the technique on an Yb3+-doped aluminosilicate fiber preform and compare it with independent refractive index and active-dopant measurements. This technique will be useful for quality evaluation and optimization of optical fiber preforms and lends itself to advanced instrumentation.

scholarly journals H2-induced copper and silver nanoparticle precipitation inside sol-gel silica optical fiber preforms

2012 ◽  
Vol 7 (1) ◽  
pp. 487 ◽  
Author(s):  
Abdallah Chahadih ◽  
Hicham El Hamzaoui ◽  
Odile Cristini ◽  
Laurent Bigot ◽  
Rémy Bernard ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Silver Nanoparticle ◽  
Sol Gel ◽  
Silica Optical Fiber ◽  
Fiber Preforms
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