期刊
SENSORS
卷 18, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/s18041273
关键词
fiber micro-knot; long-period fiber grating; high-order fiber modes
资金
- Israel Ministry of Science and Technology innovation [MOST-16-010177808]
Fiber micro-knots are a promising and a cheap solution for advanced fiber-based sensors. We investigated complex fiber micro-knots in theory and experiment. We compared the measured spectral response and present an analytical study of simple micro-knots with double twists, twin micro-knots, figure-eight micro-knots, and tangled micro-knots. This research brings the simple fabrication process and robustness of fiber micro-knots into the world of complex resonators which may lead to novel optical devices based on fiber micro-knots.
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