7 November 2012 In-fiber microsphere air-cavity Fabry-Perot interferometer for strain/temperature measurement
Author Affiliations +
Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84217W (2012); doi: 10.1117/12.974839
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
A novel in-fiber microsphere air-cavity Fabry-Perot interferometer (FPI) sensor is constructed and demonstrated for strain and temperature measurement. The microsphere air-cavity is formed by ablating, with a focused femtosecond infrared laser, the endface of a single mode fiber (SMF) to form a crater at its center, and then splices this fiber end to a second SMF using a fusion splicer. The sensor demonstrates a strain sensitivity of 2.44 pm/με and a low temperature sensitivity of 0.87 pm/ºC up to 600 ºC.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jun Ma, Wei Jin, "In-fiber microsphere air-cavity Fabry-Perot interferometer for strain/temperature measurement", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84217W (7 November 2012); doi: 10.1117/12.974839; http://dx.doi.org/10.1117/12.974839
PROCEEDINGS
4 PAGES


SHARE
KEYWORDS
Single mode fibers

Sensors

Reflection

Femtosecond phenomena

Fabry–Perot interferometry

Fusion splicing

Fusion energy

Back to Top