Abstract
Selected cladding mode recoupling between a long period grating (LPG) and a tilted fiber Bragg grating (TFBG) is demonstrated for satellites vibration environment monitoring. The mode recoupling characteristic between LPGs with different resonance wavelengths and TFBGs with different tilt angles are investigated. Strong coupling occurs between the two associated cladding modes of the same order over the overlapped resonance bands of the two gratings. Suppression ratio of over 20 dB between the recoupled cladding mode and the core reflection mode is achieved when the resonance wavelength of the LPG matches the Bragg wavelength of the TFBG. The present sensor has the features of cost-effective power detection and tip-reflection sensing ability, and give a remarkably simple and elegant approach to dynamic vibration monitoring.
Original language | English |
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Title of host publication | AOPC 2015 |
Subtitle of host publication | Optical Fiber Sensors and Applications |
Publisher | SPIE |
Volume | 9679 |
ISBN (Electronic) | 9781628419047 |
DOIs | |
Publication status | Published - 1 Jan 2015 |
Event | Applied Optics and Photonics, China: Optical Fiber Sensors and Applications, AOPC 2015 - Beijing, China Duration: 5 May 2015 → 7 May 2015 |
Conference
Conference | Applied Optics and Photonics, China: Optical Fiber Sensors and Applications, AOPC 2015 |
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Country/Territory | China |
City | Beijing |
Period | 5/05/15 → 7/05/15 |
Keywords
- Cladding mode recoupling
- Long period grating
- Tilted fiber Bragg grating
- Vibration environment monitoring
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering