Orientation-Dependent Displacement Sensor Using an Inner Cladding Fiber Bragg Grating

被引：16

作者：

Yang, Tingting ^{[1
]}

Qiao, Xueguang ^{[1
]}

Rong, Qiangzhou ^{[1
]}

Bao, Weijia ^{[1
]}

机构：

[1] Northwest Univ, Dept Phys, Xian 710069, Peoples R China

来源：

SENSORS | 2016年 / 16卷 / 09期

基金：

中国国家自然科学基金;

关键词：

inner cladding-FBG inscription; femtosecond laser; orientation bending; LONG-PERIOD GRATINGS; MULTICORE OPTICAL-FIBER; PHOTONIC CRYSTAL FIBER; BENDING SENSOR; TILTED FIBER; PHASE MASK; WRITTEN; LASER;

D O I：

10.3390/s16091473

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An orientation-dependent displacement sensor based on grating inscription over a fiber core and inner cladding has been demonstrated. The device comprises a short piece of multi-cladding fiber sandwiched between two standard single-mode fibers (SMFs). The grating structure is fabricated by a femtosecond laser side-illumination technique. Two well-defined resonances are achieved by the downstream both core and cladding fiber Bragg gratings (FBGs). The cladding resonance presents fiber bending dependence, together with a strong orientation dependence because of asymmetrical distribution of the cladding FBG along the fiber cross-section.

引用

页数：7

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