A Highly Sensitive Fiber-Optic Microphone Based on Graphene Oxide Membrane

被引：91

作者：

Wu, Yu ^{[1
]}

Yu, Caibin ^{[1
]}

Wu, Fan ^{[1
]}

Li, Chen ^{[1
]}

Zhou, Jinhao ^{[2
]}

Gong, Yuan ^{[1
]}

Rao, Yunjiang ^{[1
]}

Chen, Yuanfu ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Key Lab Opt Fiber Sensing & Commun, Minist Educ, Chengdu 611731, Sichuan, Peoples R China

[2] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Sichuan, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2017年 / 35卷 / 19期

基金：

中国国家自然科学基金;

关键词：

Fabry-Perot; fiber-optic microphone; graphene oxide; membrane; DIAPHRAGM; SENSOR; FILMS; COMPOSITE; PAPER; LASER;

D O I：

10.1109/JLT.2017.2737639

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 present a fiber-optic microphone (FOM) based on graphene oxide (GO) membrane in this study. A Fabry-Perot cavity consisting of a single-mode fiber and a piece of GO membrane works as the acoustic sensing structure. Using the GO as the core acoustic sensing component, the fabricating process of the FOM is demonstrated to be simple and efficient. Acoustic tests show that this FOM achieves an average minimum detectable pressure of 10.2 mu Pa/Hz(1/2), while maintaining a linear acoustic pressure response and a flat frequency response in the range of 100 Hz to 20 kHz. These results indicate the excellent suitability of this FOM for acoustic detection in the audible range with high sensitivity and high fidelity.

引用

页码：4344 / 4349

页数：6

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