Optimization of Refractive Index Sensitivity in Nanofilm-Coated Long-Period Fiber Gratings Near the Dispersion Turning Point

被引：27
作者：
Zou, Fang [1 ,2 ]
Liu, Yunqi [2 ]
Mou, Chengbo [2 ]
Zhu, Shan [3 ]
机构：
[1] Hebei GEO Univ, Dept Informat Engn, Shijiazhuang 050031, Hebei, Peoples R China
[2] Shanghai Univ, Joint Int Res Lab Specialty Fiber Opt & Adv Commu, Shanghai Inst Adv Commun & Data Sci, Key Lab Specialty Fiber Opt & Opt Access Networks, Shanghai 200444, Peoples R China
[3] Shanghai Normal Univ, Tianhua Coll, Sch Engn, Shanghai 201815, Peoples R China
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2020年 / 38卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Sensitivity; Gratings; Refractive index; Optical fibers; Optical fiber sensors; Nanobioscience; Atomic layer deposition; dispersion turning point; long-period fiber gratings (LPFGs); mode transition; refractive Index sensor; titanium dioxide; TRANSITION MODE; SENSORS; DESIGN;
D O I：
10.1109/JLT.2019.2949373
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this article, we present detailed investigation of the high-performance long-period fiber gratings (LPFGs) based surrounding refractive index (SRI) sensors. A comprehensive design approach is proposed to optimize the sensitivity in a specific SRI range by combining adequately both dispersion turning point (DTP) and mode transition (MT) effects. The SRI sensitivity enhancement induced by the DTP and the MT is discussed respectively. The relative importance of the mechanisms in different SRI range is revealed. The mode transitions of the HE1,18 and HE1,20 are investigated in a single LPFG, where two high sensitivity ranges are obtained. The atomic layer deposition (ALD) technology is used to deposit the titanium dioxide (TiO2) nano-film on the LPFG surface. The SRI sensitivities of 1 x 10(4) nm /RIU in the SRI range 1.336-1.3397 and 4.2 x 10(4) nm/RIU in the range 1.4526-1.4561 are achieved, respectively. The experimental results are well consistent with the theoretical analysis.
引用
收藏
页码：889 / 897
页数：9
相关论文
共 50 条
  • [41] Advances in dispersion turning point enhanced ultrasensitive optical fiber refractive index sensors
    Tan, Yanzhen
    Li, Zhenru
    Huang, Tiansheng
    Sun, Li-Peng
    Guan, Bai-Ou
    [J]. OPTICS AND LASER TECHNOLOGY, 2024, 177
  • [42] Effect of induced inner curvature on refractive index sensitivity in internally tilted long-period gratings
    Arjmand, Mojtaba
    Chiavaioli, Francesco
    Berneschi, Simone
    Baldini, Francesco
    Soltanolkotabi, Mahmood
    Trono, Cosimo
    [J]. OPTICS LETTERS, 2016, 41 (07) : 1443 - 1446
  • [43] Refractive index biosensor based on microstructured optical fiber long-period gratings: a theoretical analysis
    Qi, Yuefeng
    Gao, Xiaoqian
    Bi, Weihong
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2013, 30 (05) : 1256 - 1260
  • [44] Temperature and Refractive Index Measurements Using Long-Period Fiber Gratings Fabricated by Femtosecond Laser
    Yu, Yongqin
    Zheng, Jiarong
    Yi, Kai
    Ruan, Shuangchen
    Du, Chenlin
    Huang, Jianhui
    Zhong, Wansheng
    [J]. PASSIVE COMPONENTS AND FIBER-BASED DEVICES VIII, 2011, 8307
  • [45] Refractive-Index Insensitive Long-Period Fiber Gratings Point-by-Point Inscribed by CO2 Laser for Fiber Sensors and Lasers
    Han, Qun
    Lan, Xinwei
    Huang, Jie
    Wei, Tao
    Gao, Zhan
    Xiao, Hai
    [J]. OPTICAL COMPONENTS AND MATERIALS IX, 2012, 8257
  • [46] Measurements of refractive index sensitivity using long-period grating refractometer
    Chong, JH
    Shum, P
    Haryono, H
    Yohana, A
    Rao, MK
    Lu, C
    Zhu, YN
    [J]. OPTICS COMMUNICATIONS, 2004, 229 (1-6) : 65 - 69
  • [47] Characterization of external refractive index sensitivity of a photonic crystal fiber long-period grating
    Tian, Fei
    Kanka, Jiri
    Du, Henry
    [J]. CHINESE OPTICS LETTERS, 2015, 13 (07)
  • [48] Fabrication and Characterization of Metal Oxide-Coated Long-Period Fiber Gratings
    Coelho, Luis
    Santos, Jose Luis
    Viegas, Diana
    Marques Martins de Almeida, Jose Manuel
    [J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 2016, 34 (10) : 2533 - 2539
  • [49] Ultrahigh-sensitivity sensors based on thin-film coated long period gratings with reduced diameter, in transition mode and near the dispersion turning point
    Del Villar, Ignacio
    [J]. OPTICS EXPRESS, 2015, 23 (07): : 8389 - 8398
  • [50] Dispersion characteristics in metal coated long period fiber gratings
    Gu, Zhengtian
    Shi, Yanjun
    Gao, Kan
    [J]. OPTICAL AND QUANTUM ELECTRONICS, 2012, 44 (3-5) : 303 - 311
12345