Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7931877 | Optics Communications | 2014 | 7 Pages |
Abstract
A comparative study on behavior of grating-based bending sensors, which include long-period fiber grating (LPFG) and fiber Bragg grating (FBG), has been performed in this article. In order to simulate these grating-based bending sensors, a comprehensive simulation model has been presented. According to our simulation results, LPFG-based bending sensor on the standard SMF-28 optical fiber has bending sensitivity of 8.78Â nm/mâ1. The linear operation range for this bending sensor is between K=0Â mâ1 and K=5Â mâ1 (K is the amount of bending curvature). On the other hand, a FBG-based bending sensor on a single-mode 4-core fiber (4CF) has been studied. Our simulation results show that this bending sensor has bending sensitivity of 85.57Â pm/mâ1 and it has linear response over the entire considered range of bending, K=0-6Â mâ1. For full-rotation bend sensing, two adjacent cores of this optical fiber should be utilized.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
A. Taghipour, A. Rostami, M. Bahrami, H. Baghban, M. Dolatyari,