Investigation on micro/nanofiber Bragg grating for refractive index sensing

被引：28

作者：

Liang, Ruibing ^{[1
,2
]}

Sun, Qizhen ^{[1
,2
]}

Wo, Jianghai ^{[1
,2
]}

Liu, Deming ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Coll Optoelect Sci & Engn, Wuhan 430074, Hubei, Peoples R China

[2] Natl Engn Lab Next Generat Internet Access Syst, Wuhan 430074, Hubei, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2012年 / 285卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Micro/nanofiber; Fiber Bragg gratings; Optical fiber sensors; Refractive index; SUBWAVELENGTH-DIAMETER SILICA; LONG-PERIOD GRATINGS; MICROFIBER;

D O I：

10.1016/j.optcom.2011.11.035

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a refractometric sensor based on micro/nanofiber Bragg grating (MNFBG). The refractive index (RI) sensing performance dependence on the fiber radius and Bragg grating period of the sensor, as well as the temperature cross-sensitive effect, is investigated theoretically. The simulation results demonstrate that 400 nm-radius MNFBG has a linear response to RI ranging from 1.3 to 1.39 with a sensitivity as high as 992.7 nm/RIU and half temperature cross-sensitivity of normal FBG. A maximum sensitivity of up to 1200 nm/RIU and an outstanding RI resolution of 8.3 x 10(-6) can be achieved. MNFBG has high potential in various types of optical fiber sensor applications. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1128 / 1133

页数：6

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