Sensing Characteristics of Side-Hole Fiber-Based Long-Period Grating | Zendy

Yi Xin | Zendy; Xinyong Dong | Zendy; Junwei Yuan | Zendy; Yi Li | Zendy; Shangzhong Jin | Zendy; Sulei Zhang | Zendy

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Sensing Characteristics of Side-Hole Fiber-Based Long-Period Grating

Author(s) -

Yi Xin,

Xinyong Dong,

Junwei Yuan,

Yi Li,

Shangzhong Jin,

Sulei Zhang

Publication year - 2013

Publication title -

advances in materials science and engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.356

H-Index - 42

eISSN - 1687-8442

pISSN - 1687-8434

DOI - 10.1155/2013/850293

Subject(s) - materials science , cladding (metalworking) , refractive index , optics , blueshift , long period fiber grating , wavelength , step index profile , grating , graded index fiber , optoelectronics , sensitivity (control systems) , cladding mode , fiber , fiber optic sensor , polarization maintaining optical fiber , composite material , physics , electronic engineering , engineering , photoluminescence

Long-period gratings (LPGs) have been fabricated in a side-hole fiber (SHF) by using a pulsed CO2 laser. Sensing characteristics of this SHF-LPG to temperature surrounding refractive index and bend have been investigated. Experimental results show that resonant wavelength of the SHF-LPG has a blue shift with temperature with sensitivity of −0.11 nm/°C, a blue shift with increasing sensitivity with surrounding refractive index ranging from 1.335 to 1.44 (the maximum sensitivity is achieved when the surrounding refractive index reaches the effective index of the fiber cladding), and a red shift with bend-direction-dependent sensitivity up to 9.36 nm/m−1

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