Journal
ADVANCED OPTICAL MATERIALS
Volume 10, Issue 18, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.202200379
Keywords
birefringence; femtosecond lasers; fiber sensors; Rayleigh backscattering
Categories
Funding
- Institut de chimie (IEA INC), Centre National de la Recherche Scientifique (Intrumentation aux limites)
- Agence Nationale de la Recherche [ANR-18-CE08-0004-01]
- High Energy Laser Joint Transition Office [N00014-17-1-2546]
- J. E. Sirrine Foundation
Ask authors/readers for more resources
Aluminosilicate glasses offer wide-ranging potential for new optical devices in harsh environments. This study demonstrates the use of a nonconventional manufacturing process to fabricate all-glass silicate optical fibers and imprint nanostructures using a femtosecond laser. The laser-modified regions in these fibers exhibit improved thermal stability and can be used to create high-temperature sensitive optical devices.
Aluminosilicate glasses offer wide-ranging potential as enabling materials for a new generation of optical devices operating in harsh environments. In this work, a nonconventional manufacturing process, the molten core method, is employed to fabricate and study sapphire (Al2O3) and YAG (yttrium aluminum garnet) derived all-glass silicate optical fibers in which a femtosecond (fs) laser is used to imprint oriented nanostructures inside the fiber cores. Both writing kinetics and thermal stability of the laser-modified regions are investigated over a wide temperature range (20-1200 degrees C). The laser-imprinted modifications in these high alumina-content fibers exhibit improved thermal stability with respect to commercial pure silica and GeO2-doped silica analogs. Furthermore, optical devices in the form of Rayleigh backscattering and fiber Bragg grating sensors are fabricated to demonstrate the high-temperature sensitivity and stability of these nonconventional fibers. This functionalization of aluminosilicate fibers by fs-laser direct writing opens the door to a new generation of optical devices suitable for high-temperature operation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available