Effects of doping concentrations on the regeneration of Bragg gratings in hydrogen loaded optical fibers

Zhu, Juehua; Zhang, A. Ping; Zhou, Bin; Tian, Feng; Guo, Jiangtao; Tong, Weijun; He, Sailing; Xue, Wu

doi:10.1016/j.optcom.2011.01.074

Cited by 11 publications

(2 citation statements)

References 19 publications

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“…In the present work, instead of using a two-step annealing process as described in previous studies [6,21], thermal regeneration was conducted isothermally (upon reaching T final ) in the 700-1000 °C temperature range. As we observed that regeneration was possible at all investigated temperatures, we obtained a clear understanding of the effects related to the isothermal temperature (T final ) on the regeneration efficiency.…”

Section: Process Efficiency and Long-term Stabilitymentioning

confidence: 99%

Development of regenerated fiber Bragg grating sensors with long-term stability

et al. 2016

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The effect of annealing cycle on regeneration efficiency was investigated through isothermal treatments between 700 and 1000°C. We determined an inverse relationship between the recovery rate of the peak reflectivity and temperature. A regeneration efficiency of 85.2% and long-term stability at 1000°C for 500 hours were achieved via a slow regeneration process. Thermal sensors developed by isothermal regeneration were determined to be reliable up to 1000°C (±2 °C). Experimental findings suggest the involvement of both diffusion related phenomena and stress variation through densification of the fiber core in type-I FBG during the thermal regeneration process.

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Section: Process Efficiency and Long-term Stabilitymentioning

confidence: 99%

Development of regenerated fiber Bragg grating sensors with long-term stability

et al. 2016

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“…strain, temperature, pressure, bending, vibration, and refractive index sensors [4][5][6][7][8]. If incorporated with functional coating and evanescent wave sensing technologies, the fiber grating sensors can be further developed as humidity, gas, chemical, and biochemical sensors [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Advances in optical fiber Bragg grating sensor technologies

et al. 2012

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Abstract:The authors review their recent advances in the development of optical fiber Bragg grating (FBG) sensor technologies. After a brief review of the fiber grating sensors, several newly developed FBG sensors are described. With the continuous development of fiber materials, microstructures and post-processing technologies, FBG sensors are still creative after the first demonstration of permanent gratings thirty years ago.

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