Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6888255 | Optical Fiber Technology | 2018 | 5 Pages |
Abstract
A sensitive curvature sensor based on MMF-SCF-MMF (MMF: multimode fiber; SCF: seven core fiber) structure is proposed. The multimode fiber (MMF) are used to improve the light coupling efficiency between the input singlemode fiber (SMF) and the seven-core fiber (SCF), and the seven-core fiber is used as the main element for curvature measurement. Experimental results show that the best curvature sensitivity reaches 41.46453â¯nm/mâ1 in the range of 0.094â¯mâ1-0.567â¯mâ1. The temperature sensitivity is up to 59.02â¯pm/°C in the range of 20â¯Â°C-55â¯Â°C. The optical curvature sensors are widely used for buildings structure health monitoring and mechanical engineering due to the advantages of compact structure, anti-electromagnetic interference, and low cost.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Qi Wang, Yu Liu,