Performance comparison of high temperature sensor based on non-adiabatic silica microfiber and single mode-multimode-single mode fiber structure

被引：5

作者：

Yusof, Nur Hotimah ^{[1
]}

Razak, Hashim A. ^{[1
]}

Arof, Hamzah ^{[2
]}

Harun, Sulaiman W. ^{[2
]}

机构：

[1] Univ Malaya, Dept Civil Engn, StrucHMRS Grp, Kuala Lumpur, Malaysia

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

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2019年 / 61卷 / 02期

关键词：

Fiber-optic sensor; high temperature sensor; Interference filter;

D O I：

10.1002/mop.31595

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 fiber-based temperature sensor operating at high temperature was demonstrated using multimode interference effect and its performance was compared with that of two different probes based on a non-adiabatic microfiber and singlemode-multimode-singlemode (SMS) fiber structure. Interference fringes of the output red-shifted as the temperature increased due to the change in the effective refractive index of the multiple modes inside both structures. The sensor probes were able to measure the temperature variation up to 400 degrees C with a linearity of more than 90%. The temperature sensitivity of the microfiber and SMS sensors is 6.0 pm/degrees C and 11.1 pm/degrees C, respectively. Our proposed sensors are simple, relatively cheap to be fabricated, and could operate at high temperatures above 300 degrees C.

引用

页码：431 / 435

页数：5

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