Low-cost optical fiber refractive-index sensor based on core diameter mismatch

被引：132
作者：
Villatoro, J [1 ]
Monzón-Hernández, D [1 ]
机构：
[1] Ctr Invest Opt AC, Leon 37150, GTO, Mexico
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2006年 / 24卷 / 03期
关键词：
core diameter mismatch; optical fiber sensors; refractive-index measurement; temperature sensor;
D O I：
10.1109/JLT.2005.863246
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：
A simple, compact, and low-cost optical fiber refractive-index (RI) sensor is reported. It consists of a multimode fiber in which a short section of standard single-mode fiber (SMF) is inserted. Owing to the core diameter mismatch, the cladding of the SMF guides light. This makes the device sensitive to the external RI. The maximum resolution of the sensor is about 7 x 10(-5). The fabrication of the sensor only requires cleaving and fusion splicing; moreover, the device can operate at different wavelengths, which makes it attractive for diverse applications.
引用
收藏
页码：1409 / 1413
页数：5
相关论文
共 25 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 optical Bragg grating refractometer [J].
Asseh, A ;
Sandgren, S ;
Ahlfeldt, H ;
Sahlgren, B ;
Stubbe, R ;
Edwall, G .
FIBER AND INTEGRATED OPTICS, 1998, 17 (01) :51-62
[3]   Applications of long-period gratings to single and multi-parameter sensing [J].
Bhatia, V .
OPTICS EXPRESS, 1999, 4 (11) :457-466
[4]  
CARDENASVALENCI.AM, UNPUB SENS ACTUATO B
[5]   Fiber-taper seeded long-period grating pair as a highly sensitive refractive-index sensor [J].
Ding, JF ;
Zhang, AP ;
Shao, LY ;
Yan, JH ;
He, SL .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2005, 17 (06) :1247-1249
[6]   Nonuniform thinned fiber Bragg gratings for simultaneous refractive index and temperature measurements [J].
Iadicicco, A ;
Campopiano, S ;
Cutolo, A ;
Giordano, M ;
Cusano, A .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2005, 17 (07) :1495-1497
[7]   Gold thickness dependence of SPR-based hetero-core structured optical fiber sensor [J].
Iga, M ;
Seki, A ;
Watanabe, K .
SENSORS AND ACTUATORS B-CHEMICAL, 2005, 106 (01) :363-368
[8]  
LAGGONT G, 2001, MEAS SCI TECHNOL, V12, P765
[9]   Displacements of the resonant peaks of a long-period fiber grating induced by a change of ambient refractive index [J].
Lee, BH ;
Liu, Y ;
Lee, SB ;
Choi, SS ;
Jang, JN .
OPTICS LETTERS, 1997, 22 (23) :1769-1771
[10]   Highly sensitive fiber Bragg grating refractive index sensors [J].
Liang, W ;
Huang, YY ;
Xu, Y ;
Lee, RK ;
Yariv, A .
APPLIED PHYSICS LETTERS, 2005, 86 (15) :1-3
123