Abstract
A novel intensity-modulated fiber-optic refractive index (RI) and strain sensor based on modal interferometer (MMI) is proposed. The sensing mechanism is mainly based on the Mach-Zehnder interferometer (MZI) constructed by one down taper spliced between dual up tapers on the single mode fiber (SMF). High-order cladding modes are efficiently excited owing to the mismatch of the mode filed diameter (MFD). Experimental investigations achieve a RI sensitivity of-22.437dBm/RIU and a strain sensitivity of 0.0008dBm/μϵ with R2of 0.9972 and 0.9962 respectively. It has to be noted that this MMI is only made of single SMF and is of low cost and easy fabrication.
Original language | English |
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Title of host publication | ICOCN 2016 - 2016 15th International Conference on Optical Communications and Networks |
Publisher | IEEE |
ISBN (Electronic) | 9781509034918 |
DOIs | |
Publication status | Published - 10 Mar 2017 |
Event | 15th International Conference on Optical Communications and Networks, ICOCN 2016 - Hangzhou, China Duration: 24 Sept 2016 → 27 Sept 2016 |
Conference
Conference | 15th International Conference on Optical Communications and Networks, ICOCN 2016 |
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Country/Territory | China |
City | Hangzhou |
Period | 24/09/16 → 27/09/16 |
Keywords
- Mach-Zehnder interferometer
- miniaturized modal interferometer
- refractive index
- strain
ASJC Scopus subject areas
- Computer Networks and Communications
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics