scholarly journals Thermal Stability of Type II Modifications Inscribed by Femtosecond Laser in a Fiber Drawn from a 3D Printed Preform

2021 ◽  
Vol 11 (2) ◽  
pp. 600
Author(s):  
Yitao Wang ◽  
Shuen Wei ◽  
Maxime Cavillon ◽  
Benjamin Sapaly ◽  
Bertrand Poumellec ◽  
...  
Keyword(s):  
Thermal Stability ◽  
3D Printing ◽  
Femtosecond Laser ◽  
Optical Fibers ◽  
Thermal Performance ◽  
Single Mode ◽  
Type Ii ◽  
Fs Laser ◽  
3D Printed ◽  
Thermal Stability Of

Fiber drawing from a 3D printed perform was recently discussed to go beyond the limitations of conventional optical fiber manufacturing in terms of structure and materials. In this work, the photosensitivity of silica optical fibers to femtosecond laser light, and fabricated by 3D printing a preform, is investigated. The writing kinetics and the thermal performance of Type II modifications are studied by varying the laser pulse energy and investigating the birefringence response of the femtosecond (fs)-laser written structures. Compared with a conventional telecom single mode fiber (SMF28), the fiber made by 3D printing is found to have similar writing kinetics and thermal performance. Additionally, the thermal stability of the imprinted fs-laser induced nanostructures is investigated based on the Rayleigh–Plesset equation, describing a model of nanopores dissolution underpinning Type II modifications with thermal annealing.

scholarly journals Thermal Stability of Type II Modifications by IR Femtosecond Laser in Silica-based Glasses

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 762 ◽  
Author(s):  
Shu-En Wei ◽  
Yitao Wang ◽  
Heng Yao ◽  
Maxime Cavillon ◽  
Bertrand Poumellec ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Glass Fibers ◽  
Clear Understanding ◽  
Type Ii ◽  
Silica Glasses ◽  
Pure Silica ◽  
Self Organized ◽  
Fs Laser ◽  
Thermal Stability Of ◽  
Glass Viscosity

Femtosecond (fs) laser written fiber Bragg gratings (FBGs) are excellent candidates for ultra-high temperature (>800 °C) monitoring. More specifically, Type II modifications in silicate glass fibers, characterized by the formation of self-organized birefringent nanostructures, are known to exhibit remarkable thermal stability around 1000 °C for several hours. However, to date there is no clear understanding on how both laser writing parameters and glass composition impact the overall thermal stability of these fiber-based sensors. In this context, this work investigates thermal stability of Type II modifications in various conventional glass systems (including pure silica glasses with various Cl and OH contents, GeO2-SiO2 binary glasses, TiO2- and B2O3-doped commercial glasses) and with varying laser parameters (writing speed, pulse energy). In order to monitor thermal stability, isochronal annealing experiments (Δt⁓ 30 min, ΔT⁓ 50 °C) up to 1400 °C were performed on the irradiated samples, along with quantitative retardance measurements. Among the findings to highlight, it was established that ppm levels of Cl and OH can drastically reduce thermal stability (by about 200 °C in this study). Moreover, GeO2 doping up to 17 mole% only has a limited impact on thermal stability. Finally, the relationships between glass viscosity, dopants/impurities, and thermal stability, are discussed.

scholarly journals Femtosecond laser direct writing in SiO 2 ‐Al 2 O 3 binary glasses and thermal stability of Type II permanent modifications

2020 ◽  
Vol 103 (8) ◽  
pp. 4286-4294 ◽  
Author(s):  
Yitao Wang ◽  
Shuen Wei ◽  
Miss R. Cicconi ◽  
Yuta Tsuji ◽  
Masahiro Shimizu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Femtosecond Laser ◽  
Type Ii ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
Thermal Stability Of

Thermal Stability of Specialty Optical Fibers

2008 ◽  
Vol 26 (20) ◽  
pp. 3443-3451 ◽  
Author(s):  
Andrei A. Stolov ◽  
Debra A. Simoff ◽  
Jie Li
Keyword(s):  
Thermal Stability ◽  
Optical Fibers ◽  
Thermal Stability Of

scholarly journals 3D Printed Chromophoric Sensors

Chemosensors ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 317
Author(s):  
Zachary Brounstein ◽  
Jarrod Ronquillo ◽  
Andrea Labouriau
Keyword(s):  
Thermal Stability ◽  
3D Printing ◽  
Material Properties ◽  
Chemical Structure ◽  
Elevated Temperatures ◽  
Advanced Manufacturing ◽  
Color Changes ◽  
Printed Sensors ◽  
3D Printed ◽  
Manufacturing Techniques

Eight chromophoric indicators are incorporated into Sylgard 184 to develop sensors that are fabricated either by traditional methods such as casting or by more advanced manufacturing techniques such as 3D printing. The sensors exhibit specific color changes when exposed to acidic species, basic species, or elevated temperatures. Additionally, material properties are investigated to assess the chemical structure, Shore A Hardness, and thermal stability. Comparisons between the casted and 3D printed sensors show that the sensing devices fabricated with the advanced manufacturing technique are more efficient because the color changes are more easily detected.

scholarly journals Femtosecond-Laser-Assisted Fabrication of Radiation-Resistant Fiber Bragg Grating Sensors

2022 ◽  
Vol 12 (2) ◽  
pp. 886
Author(s):  
Hun-Kook Choi ◽  
Young-Jun Jung ◽  
Bong-Ahn Yu ◽  
Jae-Hee Sung ◽  
Ik-Bu Sohn ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Grating ◽  
Optical Fibers ◽  
Coming Out ◽  
Single Mode ◽  
Femtosecond Laser Irradiation ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Radiation Resistant ◽  
Fbg Sensors

This paper demonstrates the fabrication of radiation-resistant fiber Bragg grating (FBG) sensors using infrared femtosecond laser irradiation. FBG sensors were written inside acrylate-coated fluorine-doped single-mode specialty optical fibers. We detected the Bragg resonance at 1542 nm. By controlling the irradiation conditions, we improved the signal strength coming out from the FBG sensors. A significant reduction in the Bragg wavelength shift was detected in the fabricated FBG sensors for a radiation dose up to 105 gray, indicating excellent radiation resistance capabilities. We also characterized the temperature sensitivity of the radiation-resistant FBG sensors and detected outstanding performance.

Optical and thermal stability of Ge-as-Se chalcogenide glasses for femtosecond laser writing

2018 ◽  
Vol 85 ◽  
pp. 220-225 ◽  
Author(s):  
Liang Zhu ◽  
Dandan Yang ◽  
Leilei Wang ◽  
Jianghui Zeng ◽  
Qian Zhang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Femtosecond Laser ◽  
Chalcogenide Glasses ◽  
Laser Writing ◽  
Thermal Stability Of
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