Current sensor based on microfiber knot resonator

被引：121

作者：

Lim, K. S. ^{[2
]}

Harun, S. W. ^{[1
,2
]}

Damanhuri, S. S. A. ^{[1
]}

Jasim, A. A. ^{[1
]}

Tio, C. K. ^{[1
]}

Ahmad, H. ^{[2
]}

机构：

[1] Univ Malaya, Dept Elect Engn, Kuala Lumpur 50603, Malaysia

[2] Univ Malaya, Dept Phys, Photon Res Ctr, Kuala Lumpur 50603, Malaysia

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2011年 / 167卷 / 01期

关键词：

Wavelength tunability; Current sensor; Microfiber knot resonator;

D O I：

10.1016/j.sna.2011.02.036

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 compact current sensor using a microfiber knot resonator (MKR) is demonstrated. With the assistance of a copper wire that is wrapped by the microfiber knot, resonant wavelength inside the MKR can be tuned by applying electric current to the copper wire. The resonant wavelength change is based on the thermally induced optical phase shift in the MKR due to the heat produced by the flow of electric current over a short transit length. It is shown that the wavelength shift is linearly proportional to the square of the amount of current and the maximum tuning slope of 51.3 pm/A(2) is achieved using a newly fabricated MKR. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：60 / 62

页数：3

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