High-sensitivity Mach-Zehnder interferometer for temperature and strain measurements based on an embedded microcavity

摘要：

　　A novel all-fiber Mach-Zehnder modal interferometer(MZMI)for temperature and strain measurements is demonstrated.The interference between the core and the cladding modes in the single mode fiber(SMF)is utilized.To excite the cladding modes,a microcavity is embedded in the SMF.After propagating a distance in the cladding,the cladding modes will couple back to the core mode at the other point fabricated by core-offset splicing.The MZMI exhibits a high temperature sensitivity(>0.1nm/n the range of The strain response of the MZMI is also investigated.This compact,simple and cost-effective MZMI owns potential applications in temperature and strain measurements.

关键词： optical fiber sensors Mach-Zehnder interferometer microcavity strain temperature

作者: Zhao Zhang Zhigang Cao Tao Shui Chenchen Yin Hao Yin Haiyu Tang Benli Yu

作者单位: Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei,230601,China

会议类型: 国际会议

会议名称: 2013 International Conference on Optical Instrument and Technology (OIT’2013)(2013年光学仪器与技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1-8

在线出版日期: 2013-11-17（万方平台首次上网日期，不代表论文的发表时间）