Refractive index sensing characteristic of single-mode-multimode-single-mode fiber structure based on self-imaging effect

被引：13
作者：
Bai, Xuekun [1 ]
Wang, Haotian [2 ]
Wang, Shaofei [1 ]
Pu, Shengli [2 ]
Zeng, Xianglong [1 ]
机构：
[1] Shanghai Univ, Key Lab Specialty Fiber Opt & Opt Access Network, Shanghai 200072, Peoples R China
[2] Univ Shanghai Sci & Technol, Coll Sci, Shanghai 200093, Peoples R China
来源：
OPTICAL ENGINEERING | 2015年 / 54卷 / 10期
基金：
中国国家自然科学基金;
关键词：
BRAGG GRATINGS; SENSOR; INTERFERENCE; REFRACTOMETER; LASER; INTERFEROMETER; STRAIN; FILTER;
D O I：
10.1117/1.OE.54.10.106103
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We research the refractive index (RI) sensing characteristic based on the bandpass spectrum caused by the self-imaging effect in the single-mode-multimode-single-mode (SMS) fiber structure theoretically and experimentally. A new selectable parameter, i.e., no-core fiber (NCF) length, is investigated for improving the sensitivity of the sensor. The results show that the sensor's sensitivity will be enhanced by shortening the NCF length when the self-imaging number remains constant. Experimentally, a maximum sensitivity of 1923 nm/RIU (RI unit) has been achieved when the RI ranges from 1.334 to 1.434. This work demonstrates a method to improve the sensitivity of SMS-fiber-structure-based RI sensors featuring a low cost, compact size, low insert loss, and high sensitivity optical fiber RI sensor. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
引用
收藏
页数：6
相关论文
共 30 条
[1]   A high sensitivity refractometer based upon a long period grating Mach-Zehnder interferometer [J].
Allsop, T ;
Reeves, R ;
Webb, DJ ;
Bennion, I ;
Neal, R .
REVIEW OF SCIENTIFIC INSTRUMENTS, 2002, 73 (04) :1702-1705
[2]   Fiber-optic sensor for liquid level measurement [J].
Antonio-Lopez, J. E. ;
Sanchez-Mondragon, J. J. ;
LiKamWa, P. ;
May-Arrioja, D. A. .
OPTICS LETTERS, 2011, 36 (17) :3425-3427
[3]   Tunable multimode-interference bandpass fiber filter [J].
Antonio-Lopez, J. E. ;
Castillo-Guzman, A. ;
May-Arrioja, D. A. ;
Selvas-Aguilar, R. ;
LikamWa, P. .
OPTICS LETTERS, 2010, 35 (03) :324-326
[4]   Optical fiber long-period grating sensors [J].
Bhatia, V ;
Vengsarkar, AM .
OPTICS LETTERS, 1996, 21 (09) :692-694
[5]   Plasmonic nanoshell functionalized etched fiber Bragg gratings for highly sensitive refractive index measurements [J].
Burgmeier, Joerg ;
Feizpour, Amin ;
Schade, Wolfgang ;
Reinhard, Bjoern M. .
OPTICS LETTERS, 2015, 40 (04) :546-549
[6]   Widely tunable erbium-doped fiber laser based on multimode interference effect [J].
Castillo-Guzman, A. ;
Antonio-Lopez, J. E. ;
Selvas-Aguilar, R. ;
May-Arrioja, D. A. ;
Estudillo-Ayala, J. ;
LikamWa, P. .
OPTICS EXPRESS, 2010, 18 (02) :591-597
[7]   Cladding mode resonances of etch-eroded fiber Bragg grating for ambient refractive index sensing [J].
Chen, N ;
Yun, BF ;
Cui, YP .
APPLIED PHYSICS LETTERS, 2006, 88 (13)
[8]   Fabry-Perot refractometer based on an end-of-fiber polymer tip [J].
Frazao, O. ;
Caldas, P. ;
Santos, J. L. ;
Marques, P. V. S. ;
Turck, C. ;
Lougnot, D. J. ;
Soppera, O. .
OPTICS LETTERS, 2009, 34 (16) :2474-2476
[9]   Optical refractometer based on a birefringent Bragg grating written in an H-shaped fiber [J].
Frazao, O. ;
Martynkien, T. ;
Baptista, J. M. ;
Santos, J. L. ;
Urbanczyk, W. ;
Wojcik, J. .
OPTICS LETTERS, 2009, 34 (01) :76-78
[10]   In-fiber Mach-Zehnder interferometric refractive index sensors with guided and leaky modes [J].
Harris, Jeremie ;
Lu, Ping ;
Larocque, Hugo ;
Chen, Liang ;
Bao, Xiaoyi .
SENSORS AND ACTUATORS B-CHEMICAL, 2015, 206 :246-251
123