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Proceedings Paper

Fabricating harsh environment fiber Bragg gratings by ultrafast laser
Author(s): Chun Zhan; Yong Zhu; Shizhuo Yin
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Paper Abstract

In this work, the recent work on fabricating harsh environment fiber grating by femtosecond laser and applications as multi-parameter sensor is reported. Bragg gratings have been written in single mode (SM), multimode (MM) silica fiber, polarization maintaining (PM) single mode silica fiber, and highly multimode 60-micron thinned sapphire fiber. Silica gratings can survive in temperatures higher than 1000°C. Sapphire fiber grating can even go as high as 2000°C. Multiple parameter integrated fiber sensor that can detect vector bending and ambient temperature simultaneously with a single asymmetric fiber Bragg grating is realized in MM silica fiber and PM silica fiber. Higher order modes of sapphire Bragg grating is filtered out by mode winding to realize single mode operation.

Paper Details

Date Published: 24 August 2006
PDF: 11 pages
Proc. SPIE 6314, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XII, 63141Q (24 August 2006); doi: 10.1117/12.682040
Show Author Affiliations
Chun Zhan, The Pennsylvania State Univ. (United States)
Yong Zhu, The Pennsylvania State Univ. (United States)
Shizhuo Yin, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 6314:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XII
Francis T. S. Yu; Ruyan Guo; Shizhuo S. Yin, Editor(s)

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