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High temperature sensing with fiber Bragg gratings in sapphire-derived all-glass optical fibers
- Source :
- Optics express. 22(22)
- Publication Year :
- 2014
-
Abstract
- A structured sapphire-derived all-glass optical fiber with an aluminum content in the core of up to 50 mol% was used for fiber Bragg grating inscription. The fiber provided a parabolic refractive index profile. Fiber Bragg gratings were inscribed by means of femtosecond-laser pulses with a wavelength of 400 nm in combination with a two-beam phase mask interferometer. Heating experiments demonstrated the stability of the gratings for temperatures up to 950 degrees C for more than 24 h without degradation in reflectivity.
- Subjects :
- All-silica fiber
PHOSFOS
Materials science
business.industry
Physics::Optics
femtosecond laser-radiation
regenerated gratings
Long-period fiber grating
Graded-index fiber
nm
Atomic and Molecular Physics, and Optics
Optics
Fiber Bragg grating
Fiber optic sensor
silica
inscription
Optoelectronics
pulses
business
Plastic optical fiber
Photonic-crystal fiber
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 22
- Issue :
- 22
- Database :
- OpenAIRE
- Journal :
- Optics express
- Accession number :
- edsair.doi.dedup.....eaeafae32f4b23273cbaa39b9eb1db61