High-temperature and stress response behavior of femtosecond laser pulses inscribed eccentric fiber Bragg gratings

Peng Jiang, Qiang Xu*, Rui Zhang, Haiping Bai, Kang Li, Nigel Copner, Yongkang Gong

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

32 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

Eccentric fiber Bragg grating (EFBG) is inscribed in standard communication single-mode fiber using femtosecond laser pulses, and the temperature and strain sensing characteristics are experimentally demonstrated and analyzed. The EFBG exhibits strong thermal stability and good robustness in high-temperature measurement up to 1000 °C, and undergoes different thermal sensitivities during Bragg peak and the strong resonance coupled cladding spectral comb. The temperature sensitivity linearly increases with respect to the effective index of the resonant modes. Such a situation also occurs in axial strain measurement. These characteristics are of high interest for multiparametric sensing at high temperatures.
Iaith wreiddiolSaesneg
Rhif yr erthygle17185
Nifer y tudalennau8
CyfnodolynHeliyon
Cyfrol9
Rhif cyhoeddi6
Dyddiad ar-lein cynnar11 Meh 2023
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsE-gyhoeddi cyn argraffu - 11 Meh 2023

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