Femtosecond laser inscribed helical sapphire fiber Bragg gratings
Q. Guo; S. Liu; X. Pan; B. Wang; Z. Tian; C. Chen; Q. Chen; Y. Yu and H. Sun
Source PublicationOptics Letters
AbstractThis Letter reports a novel helical sapphire fiber Bragg grating (HSFBG) in a single crystal sapphire fiber with diameter of 60 m fabricated by a 515 nm femtosecond laser. Due to the large refractive index modulation region and high structural symmetry of the HSFBGs, high-reflectivity and high-quality spectra can be prepared and additionally have good bending resistance. The spectral properties of HSFBGs with different helical diameters are studied. When the helical diameter is 30 m, the reflectivity of HSFBG is 40%, the full width at half-maximum is 1.56 nm, and the signal-to-noise ratio is 16 dB. For the HSFBG bending test, the minimum bending radius is 5 mm, which can still maintain relatively good spectral quality. In addition, the HSFBG array with different periods has been successfully cascaded in a sapphire fiber. The experimental results of the HSFBG high-temperature test show that this HSFBG can work reliably at 1600C, and the temperature sensitivity in the high-temperature range can reach 35.55 pm/C. This HSFBG can be used in high-temperature and harsh environments, such as metal smelting and aeroengine structural health monitoring. 2021 Optical Society of America
Indexed BySCI ; EI
Citation statistics
Document Type期刊论文
Recommended Citation
GB/T 7714
Q. Guo,S. Liu,X. Pan,et al. Femtosecond laser inscribed helical sapphire fiber Bragg gratings[J]. Optics Letters,2021,46(19):4836-4839.
APA Q. Guo.,S. Liu.,X. Pan.,B. Wang.,Z. Tian.,...&Y. Yu and H. Sun.(2021).Femtosecond laser inscribed helical sapphire fiber Bragg gratings.Optics Letters,46(19),4836-4839.
MLA Q. Guo,et al."Femtosecond laser inscribed helical sapphire fiber Bragg gratings".Optics Letters 46.19(2021):4836-4839.
Files in This Item: Download All
File Name/Size DocType Version Access License
Femtosecond laser in(9497KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Q. Guo]'s Articles
[S. Liu]'s Articles
[X. Pan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Q. Guo]'s Articles
[S. Liu]'s Articles
[X. Pan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Q. Guo]'s Articles
[S. Liu]'s Articles
[X. Pan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Femtosecond laser inscribed helical sapphire f.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.