The use of a bend singlemode-multimode-singlemode (SMS) fibre structure for vibration sensing

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• 作者：Qiang Wu^a ; ^b ; ^{qiang.wu@dit.ie" class="auth_mail} ; Minwei Yang^a ; Jinhui Yuan^b ; Hau Ping Chan^c ; Youqiao Ma^a ; Yuliya Semenova^a ; Pengfei Wang^a ; Chongxiu Yu^b ; Gerald Farrell^a
• 关键词：SMS ; Vibration sensing
• 刊名：Optics and Laser Technology
• 出版年：November 2014
• 年：2014
• 卷：63
• 期：Complete
• 页码：29-33
• 全文大小：1202 K

文摘

A bend singlemode–multimode–singlemode (SMS) fibre structure based vibration sensor is proposed and developed. This sensor configuration is very simple and employs a bend SMS fibre structure and a broadband optical source. The vibration applied to the bend SMS fibre structure will change the bend radius and hence the intensity of the transmitted optical power will also vary. Experimental results show that the sensor can detect both vibration frequencies and amplitudes over a broad range with good sensitivity, from a hertz to 12 kHz.