Temperature and strain characterization of regenerated gratings.
@article{Wang2013TemperatureAS, title={Temperature and strain characterization of regenerated gratings.}, author={Tao Wang and Li-Yang Shao and John Canning and Kevin T. Cook}, journal={Optics letters}, year={2013}, volume={38 3}, pages={ 247-9 } }
Both temperature and strain characterization of seed and regenerated gratings with and without post annealing is reported. The high temperature regeneration has significant impact on thermal characterization and mechanical strength of gratings while the post annealing has little effect. The observed difference is evidence of viscoelastic changes in glass structure.
40 Citations
Regeneration of fiber Bragg gratings under strain.
- PhysicsApplied optics
- 2013
The effect of strain on both the index modulation, Δn(mod), and average index, Δ n, during grating regeneration within two types of fibers is studied and the observed Moiré interference cycling through regeneration indicates the presence of two gratings.
Ultra-high temperature chirped fiber Bragg gratings produced by gradient stretching of viscoelastic silica.
- PhysicsOptics letters
- 2013
By applying a suitable quadratic temperature distribution at a temperature within the viscoelastic softening region for silica, a regenerated chirped grating with bandwidth of 9.8 nm is produced from…
Annealing treatment and wavelength shifting characteristics of regenerated fiber Bragg gratings
- Physics
- 2018
Thermal annealing of tilted fiber Bragg gratings
- PhysicsEuropean Workshop on Optical Fibre Sensors
- 2016
We report a practical study of the thermal decay of cladding mode resonances in tilted fiber Bragg gratings, establishing an analogy with the “power law” evolution previously observed on uniform…
Regenerated Bragg Gratings in Panda Fibers for Simultaneous Temperature and Force Measurements at High Temperatures
- Physics, Materials ScienceJournal of Lightwave Technology
- 2016
Simultaneous temperature and force measurements in an extended temperature range up to 500 °C were shown with a regenerated fiber Bragg grating in a polarisation maintaining fiber of type Panda. Type…
Fiber Bragg grating regeneration at 450°C for improved high temperature sensing.
- Physics, Materials ScienceOptics letters
- 2019
Type-I fiber Bragg gratings photo-inscribed in hydrogen-loaded B/Ge co-doped silica single-mode optical fibers have been regenerated efficiently at 450°C, which is the lowest temperature reported so far and suggest the contribution of different mechanisms to the regeneration process with different relative dynamics.
High temperature and force measurements using a type II cascaded regenerated fiber Bragg grating (RFBG)
- PhysicsInstrumentation Science & Technology
- 2019
Abstract A Type II-IR (infrared) grating cascaded with a regenerated fiber Bragg grating (RFBG) is described for force measurements at high temperature. The sensor was fabricated by fusion splicing a…
Strain Measurement in Aluminium Alloy during the Solidification Process Using Embedded Fibre Bragg Gratings
- Materials ScienceSensors
- 2016
FBGs can withstand the solidification process, although a compression in the range of one percent was measured, which is in agreement with the literature value, and the obtained results prove that FBGs are applicable as sensors for temperatures up to 740 °C.
Sensitivity-Improved Strain Sensor over a Large Range of Temperatures Using an Etched and Regenerated Fiber Bragg Grating
- PhysicsSensors
- 2014
A sensitivity-improved fiber-optic strain sensor using an etched and regenerated fiber Bragg grating (ER-FBG) suitable for a large range of temperature measurements has been proposed and…
References
SHOWING 1-10 OF 35 REFERENCES
Regenerated gratings in air-hole microstructured fibers for high-temperature pressure sensing.
- PhysicsOptics letters
- 2011
This Letter demonstrates a multiplexible pressure and temperature sensor technology for high-temperature environments using a single optical fiber feedthrough.
Simultaneous measurement of strain and temperature using Bragg gratings written in germanosilicate and boron-codoped germanosilicate fibers
- PhysicsIEEE Photonics Technology Letters
- 1999
A new fiber Bragg grating sensor configuration is presented for simultaneous measurement of strain and temperature. The sensor utilizes the effect of boron codoping on the temperature dependence of…
Mapping the thermal distribution within a silica preform tube using regenerated fibre Bragg gratings
- Physics
- 2012
Ultrahigh-temperature regenerated gratings in boron-codoped germanosilicate optical fiber using 193 nm.
- PhysicsOptics letters
- 2008
Regenerated gratings seeded by type I gratings in boron-codoped germanosilicate optical fiber written with 193 nm are shown to withstand temperatures beyond 1000 degrees C.
Bragg grating formation and germanosilicate fiber photosensitivity
- PhysicsOther Conferences
- 1991
The refractive index of germanosilicate and germano-aluminosilicate fiber can be increased by a few parts in 105 to upwards of five parts in 104 by photobleaching the oxygen vacancy defect band of…
Passive temperature-compensating package for optical fiber gratings.
- PhysicsApplied optics
- 1995
A compact, passive temperature-compensating package for fiber gratings mounted under tension in a package comprising two materials with different thermal-expansion coefficients compensating the temperature dependence of the Bragg wavelength is demonstrated.
Bragg Gratings, Photosensitivity and Poling in Glass Waveguides (BGPP
- Physics
- 2010
Polymer optical fibre Bragg gratings are useful for strain sensor applications for large dynamic range. We report recent progress in developing polymer optical fibres with higher photosensitivity and…
Extreme Silica Optical Fibre Gratings
- PhysicsSensors
- 2008
A regenerated optical fibre Bragg grating that survives temperature cycling up to 1,295°C is demonstrated. A model based on seeded crystallisation or amorphisation is proposed.
Measurement of axial stress at high spatial resolution in ultraviolet-exposed fibers.
- PhysicsApplied optics
- 1999
High-spatial-resolution measurements of axial-stress profiles of UV-irradiated fibers are reported, providing diagnostic information and a technique for the direct observation of UV-written grating…