Paper
14 June 2004 Fabricating in-fiber gratings in single-crystal sapphire fiber
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Abstract
In this paper, we propose an innovative extremely harsh environment (up to 2000°C) distributed temperature sensor by fabricating in-fiber gratings in single crystal sapphire fibers. Temperature is sensed by changing grating optical spectral response. By cascading a set of gratings in the same single crystal sapphire fiber, distributed sensing can be achieved. A quantitative analysis on grating design, fabrication, and performance is presented. Some preliminary experimental results are also reported. Application of this unique in-fiber grating to extremely harsh environment temperature sensor will be performed in the near future.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sung-Hyun Nam, Jesus Chavez, and Shizhuo Yin "Fabricating in-fiber gratings in single-crystal sapphire fiber", Proc. SPIE 5350, Optical Components and Materials, (14 June 2004); https://doi.org/10.1117/12.529616
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Cited by 1 scholarly publication and 9 patents.
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KEYWORDS
Sapphire

Crystals

Sensors

Environmental sensing

Fiber Bragg gratings

Cladding

Fiber optics sensors

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