Femtosecond laser direct writing annular small-period long-period fiber gratings for simultaneous refractive index and temperature sensing

被引：1
|
作者：
Liu, Yulei [1 ]
Cai, Jintao [1 ]
Liu, Hanyuan [1 ]
Shu, Xuewen [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
来源：
OPTICS LETTERS | 2024年 / 49卷 / 15期
基金：
中国国家自然科学基金;
关键词：
BRAGG GRATINGS; SENSITIVITY; SENSOR;
D O I：
10.1364/OL.532484
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new type of small-period long-period fiber grating (SPLPFG) consisting of a series of annuli inscribed by a femtosecond laser in a single-mode fiber is proposed and demonstrated. The effects of the annuli radii and the number of annuli in each period on the transmission spectrum are studied. The transmission spectrum of the annular SP-LPFG exhibits both strong Bragg resonances and cladding mode resonances, which have similar temperature sensitivities of 9.26 and 9.75 pm/degrees C, respectively. The Bragg resonances are insensitive to the change of environment refractive index (RI), while the cladding mode resonances show a RI sensitivity of 141.89 nm/RIU. The proposed sensor offers a potential solution for biomolecular sensing applications by effectively eliminating the issue of temperature cross-sensitivity. Its compact design and ease of spectral acquisition enhance its practicality and convenience. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
引用
收藏
页码：4194 / 4197
页数：4
相关论文
共 50 条
  • [41] Temperature influence of an air-conditioner in refractive index measurements using long-period fiber gratings
    Falate, R.
    Possetti, G. R. C.
    Kamikawachi, R. C.
    Fabris, J. L.
    Kalinowski, H. J.
    THIRD EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS, 2007, 6619
  • [42] Temperature compensation of long-period fiber grating for refractive-index sensing with bending effect
    Ng, MN
    Chen, ZH
    Chiang, KS
    IEEE PHOTONICS TECHNOLOGY LETTERS, 2002, 14 (03) : 361 - 362
  • [43] Dispersion optimization of photonic crystal fiber long-period gratings for a high-sensitivity refractive index sensing
    Kanka, Jiri
    OPTICAL SENSORS 2011 AND PHOTONIC CRYSTAL FIBERS V, 2011, 8073
  • [44] Response characteristics of refractive-index gradient based on long-period fiber gratings
    Zhao, Ming-Fu
    Han, Xi
    Luo, Bin-Bin
    Wang, Bo-Si
    Quan, Xiao-Li
    Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2013, 21 (02): : 316 - 322
  • [45] Optical Fiber Sensing System Based on Long-Period Gratings for Remote Refractive Index Measurement in Aqueous Environments
    Silva, C.
    Coelho, Joao M. P.
    Caldas, P.
    Frazao, O.
    Jorge, P. A. S.
    Santos, J. L.
    FIBER AND INTEGRATED OPTICS, 2010, 29 (03) : 160 - 169
  • [46] Refractive index sensitivity of nano-film coated long-period fiber gratings
    Zou, Fang
    Liu, Yunqi
    Deng, Chuanlu
    Dong, Yanhua
    Zhu, Shan
    Wang, Tingyun
    OPTICS EXPRESS, 2015, 23 (02): : 1114 - 1124
  • [47] Numerical and experimental investigation of long-period gratings in photonic crystal fiber for refractive index sensing of gas media
    Tian, Fei
    He, Zonghu
    Du, Henry
    OPTICS LETTERS, 2012, 37 (03) : 380 - 382
  • [48] Numerical analysis of refractive index sensitivity of long-period gratings in photonic crystal fiber
    Zhu, Yinian
    He, Zonghu
    Kanka, Jiri
    Du, Henry
    SENSORS AND ACTUATORS B-CHEMICAL, 2008, 129 (01): : 99 - 105
  • [49] Refractive-index changes and long-period fiber gratings made by rapid solidification
    Morishita, K
    Yuan, SF
    Miyake, Y
    PROCEEDINGS OF 2002 IEEE/LEOS WORKSHOP ON FIBRE AND OPTICAL PASSIVE COMPONENTS, 2002, : 98 - 103
  • [50] Refractive index variations and long-period fiber gratings made by the glass structure change
    Morishita, K
    Yuan, SF
    Miyake, Y
    Fujihara, T
    IEICE TRANSACTIONS ON ELECTRONICS, 2003, E86C (08) : 1749 - 1758
12345