Fiber Bragg grating fabricated in micro-single-crystal sapphire fiber | Zendy

Shuo Yang | Zendy; Daniel Homa | Zendy; Gary Pickrell | Zendy; Anbo Wang | Zendy

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Fiber Bragg grating fabricated in micro-single-crystal sapphire fiber

Author(s) -

Shuo Yang,

Daniel Homa,

Gary Pickrell,

Anbo Wang

Publication year - 2017

Publication title -

optics letters

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.43.000062

Subject(s) - materials science , fiber bragg grating , optics , sapphire , microfiber , phosfos , femtosecond , photonic crystal fiber , fiber , fiber laser , optoelectronics , refractive index , optical fiber , graded index fiber , laser , fiber optic sensor , composite material , wavelength , physics

This Letter introduces a fiber Bragg grating (FBG) in a micro-single-crystal sapphire fiber (micro-SFBG) for sensing applications in high-temperature and harsh environments. The FBG was fabricated by a point-by-point method via an IR-femtosecond laser in a large-diameter sapphire fiber that was then wet-hot acid etched to achieve microfiber size, which culminated in fabricating and characterizing a 9.6 μm diameter micro-SFBG. The refractive index measurement ranging from 1 to 1.75 and temperature measurement from room temperature to 1400°C are also reported.

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