Sapphire Fiber Bragg Gratings with Improved Spectral Properties for High-temperature Measurements

被引：0

作者：

Xu, Xizhen ^{[1
,2
,3
]}

He, Jun ^{[1
,2
,3
]}

Liao, Changrui ^{[1
,2
,3
]}

Wang, Yiping ^{[1
,2
,3
]}

机构：

[1] Shenzhen Univ, Guangdong & Hong Kong Joint Res Ctr Opt Fibre Sen, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China

[2] Shenzhen Univ, Guangdong Lab Artificial Intelligence & Digital E, Shenzhen 518060, Peoples R China

[3] Shenzhen Univ, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China

来源：

2019 PHOTONICS & ELECTROMAGNETICS RESEARCH SYMPOSIUM - FALL (PIERS - FALL) | 2019年

基金：

中国国家自然科学基金;

关键词：

FEMTOSECOND; SENSOR;

D O I：

暂无

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：

We propose the polishing process to obtain a smooth and flat sapphire fiber end face. And the end reflection of the sapphire fiber can be measured by employing the tunable laser and power meter. We study several methods to measure the spectra of sapphire fiber Bragg gratings (SFBGs). The signal to noise ratio (SNR) of sapphire fiber Bragg gratings decreases with increasing propagation distance due to the uneven diameter of sapphire fiber. The high-temperature response of these SFBGs was tested and the experimental results showed the SNRs of SFBGs decreased at a high temperature of 1785 degrees C. Hence, such SFBGs could be developed for promising high temperature sensors in metallurgical, chemical, and aviation industries.

引用

页码：2080 / 2084

页数：5

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