- 作者：Qi Wanga ; b ; wangqi@ise.neu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; wangqi_office@163.com" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Lingxin Konga ; Yunli Danga ; Feng Xiaa ; Yongwei Zhanga ; Yong Zhaoa ; bAuthor Vitae ; Haifeng HuaAuthor Vitae ; Jin LiaAuthor Vitae
- 关键词：Optical fiber sensor ; Refractive index measurement ; Mach-Zehnder interference ; Photonic crystal fiber ; High sensitivity ; Splicing points taper
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2016
- 出版时间：31 March 2016
- 年：2016
- 卷：225
- 期：Complete
- 页码：213-220
- 全文大小：2836 K
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The paper proposed and demonstrated a novel splicing points tapered SMF-PCF-SMF structure Mach-Zehnder interferometric refractive index sensor for the first time.
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The paper built a structure model of splicing points tapered SMF-PCF-SMF structure Mach-Zehnder interferometric refractive index sensor to numerically study the refractive index sensing characteristics, and optimizing the structure parameters to improve the sensitivity.
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Experimentally fabricated the splicing points tapered SMF-PCF-SMF structure Mach-Zehnder interferometric refractive index sensor and realized the sensitivity of 260.8 nm/RIU, compared with sensitivity of 224.2 nm/RIU of direct splicing SMF-PCF-SMF Mach-Zehnder mode interferometer with PCF length of 4 cm, the sensitivity increased by 16.3%.