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

scholarly journals Nanogratings and nanoholes fabricated by direct femtosecond laser writing in chalcogenide glasses

2010 ◽  
Vol 18 (7) ◽  
pp. 6885 ◽  
Author(s):  
Qiming Zhang ◽  
Han Lin ◽  
Baohua Jia ◽  
Lei Xu ◽  
Min Gu
Keyword(s):  
Femtosecond Laser ◽  
Chalcogenide Glasses ◽  
Laser Writing

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 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

scholarly journals Investigation and Improvement of Thermal Stability of a Chromatic Confocal Probe with a Mode-Locked Femtosecond Laser Source

2019 ◽  
Vol 9 (19) ◽  
pp. 4084 ◽  
Author(s):  
Ryo Sato ◽  
Yuki Shimizu ◽  
Chong Chen ◽  
Hiraku Matsukuma ◽  
Wei Gao
Keyword(s):  
Thermal Stability ◽  
Thermal Expansion ◽  
Femtosecond Laser ◽  
Thermal Instability ◽  
Theoretical Calculations ◽  
Surface Profile ◽  
Laser Source ◽  
Profile Measurement ◽  
Chromatic Confocal Probe ◽  
Thermal Stability Of

An intentional investigation on the thermal stability of a mode-locked femtosecond laser chromatic confocal probe, which is a critical issue for the probe to be applied for long-term displacement measurement or surface profile measurement requiring long-time scanning, is carried out. At first, the thermal instability of the first prototype measurement setup is evaluated in experiments where the existence of a considerably large thermal instability is confirmed. Then the possible reasons for the thermal instability of the measurement setup are analyzed quantitatively, such as the thermal instability of the refractive index of the confocal lens and the thermal expansion of mechanical jigs employed in the probe. It is verified that most of the thermal instability of the measurement setup is caused by the thermal expansion of mechanical jigs in the probe. For the improvement of the thermal stability of the probe, it is necessary to employ a low thermal expansion material for the mechanical jigs in the measurement setup and to shorten the optical path length of the laser beam. Based on the analysis result, a second prototype probe is newly designed and constructed. The improved thermal stability of the second prototype probe is verified through theoretical calculations and experiments.

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