High temperature sensing with fiber Bragg gratings in sapphire-derived all-glass optical fibers | Zendy

Tino Elsmann | Zendy; Adrian Lorenz | Zendy; Nazila Safari Yazd | Zendy; T. Habisreuther | Zendy; Jan Dellith | Zendy; Anka Schwuchow | Zendy; Jörg Bierlich | Zendy; Kay Schuster | Zendy; Manfred Rothhardt | Zendy; Ladislav Kido | Zendy; Hartmut Bartelt | Zendy

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High temperature sensing with fiber Bragg gratings in sapphire-derived all-glass optical fibers

Author(s) -

Tino Elsmann,

Adrian Lorenz,

Nazila Safari Yazd,

T. Habisreuther,

Jan Dellith,

Anka Schwuchow,

Jörg Bierlich,

Kay Schuster,

Manfred Rothhardt,

Ladislav Kido,

Hartmut Bartelt

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.026825

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

A structured sapphire-derived all-glass optical fiber with an aluminum content in the core of up to 50 mol% was used for fiber Bragg grating inscription. The fiber provided a parabolic refractive index profile. Fiber Bragg gratings were inscribed by means of femtosecond-laser pulses with a wavelength of 400 nm in combination with a two-beam phase mask interferometer. Heating experiments demonstrated the stability of the gratings for temperatures up to 950°C for more than 24 h without degradation in reflectivity.

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