Journal
IEEE SENSORS JOURNAL
Volume 20, Issue 7, Pages 3593-3598Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2019.2959316
Keywords
Compact U-shaped interferometer; high RI sensitivity; temperature sensing
Funding
- National Natural Science Foundation of China (NSFC) [11274181]
- National Key Research and Development Program of China [2019YFB1803700]
- CAST Innovation Foundation [CAST-BISEE2017-002]
Ask authors/readers for more resources
A compact U-shaped interferometer with high refractive index (RI) sensitivity based on bent single-mode fiber is proposed and demonstrated experimentally. The sensor is fabricated by roasting a balloon-shaped single-mode optical fiber to form a U-shaped modal interferometer. Since the spectral dips show different sensitivities to both the surrounding RI and temperature, simultaneous measurement of RI and temperature can be achieved by demodulating the shifts of the different resonance dips without cascading additional components. The sensitivity of RI reaches up to -1705.66 nm/RIU in the range of 1.3330-1.3581, which is about 10 times as the reported arts. The proposed compact U-shaped interferometer is a potentially effective sensor for chemical and biological applications where an accurate RI measurement of a temperature-changing liquid is required.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available