Optical flowmeter using a modal interferometer based on a single nonadiabatic fiber taper

被引:60
作者
Frazao, O.
Caldas, P.
Araujo, F. M.
Ferreira, L. A.
Santos, J. L.
机构
[1] INESC, P-4169007 Oporto, Portugal
[2] Univ Porto, Fac Ciencias, Dept Fis, P-4169007 Oporto, Portugal
关键词
D O I
10.1364/OL.32.001974
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A novel in-fiber modal interferometer is presented that is based on a nonadiabatic biconical fused taper that couples light between the cladding and the core, combined with the Fresnel reflection at the fiber end. It is observed that the returned light from this fiber structure shows a channeled spectrum similar to that of a two-wave Michelson interferometer. The application of this device as a fiber optic flowmeter sensor is demonstrated. 2007 (c) Optical Society of America.
引用
收藏
页码:1974 / 1976
页数:3
相关论文
共 8 条
[1]   COHERENCE MULTIPLEXING OF FIBER-OPTIC INTERFEROMETRIC SENSORS [J].
BROOKS, JL ;
WENTWORTH, RH ;
YOUNGQUIST, RC ;
TUR, M ;
KIM, BY ;
SHAW, HJ .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 1985, 3 (05) :1062-1072
[2]   SENSING WITH A LP(01)-LP(02) INTERMODAL INTERFEROMETER [J].
EFTIMOV, TA ;
BECK, WJ .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 1993, 11 (12) :2150-2156
[3]   Optical inclinometer based on a single long-period fiber grating combined with a fused taper [J].
Frazao, O. ;
Falate, R. ;
Fabris, J. L. ;
Santos, J. L. ;
Ferreira, L. A. ;
Araujo, F. M. .
OPTICS LETTERS, 2006, 31 (20) :2960-2962
[4]  
JACKSON D, 1982, ELECTRON LETT, V18, P302
[5]   Phase shifted and cascaded long-period fiber gratings [J].
Liu, Y ;
Williams, JAR ;
Zhang, L ;
Bennion, I .
OPTICS COMMUNICATIONS, 1999, 164 (1-3) :27-31
[6]  
LOPEZHIGUERA JM, 2002, HDB OPTICAL FIBER SE
[7]   Long-period grating Michelson refractometric sensor [J].
Swart, PL .
MEASUREMENT SCIENCE AND TECHNOLOGY, 2004, 15 (08) :1576-1580
[8]   In-fiber integrated Michelson interferometer [J].
Yuan, Libo ;
Yang, Jun ;
Liu, Zhihai ;
Sun, Jiaxing .
OPTICS LETTERS, 2006, 31 (18) :2692-2694