A Distributed Fibre Bragg Grating Sensor Interrogator Employing a Reformative Arrayed Waveguide Grating |
| |
| Authors: | HUANG Jing-Tang HUANG Xu-Guang ZHAO Hua-Wei |
| |
| Affiliation: | Lab of Photonics Information Technology, South China Normal University, Guangzhou 510006 |
| |
| Abstract: | We present an interrogating technique employing a reformative arrayed waveguide grating without output waveguides in combination with a linear charge coupled device. A simple and effective data processing method called area equalized point is used to improve the system resolution. The simulation results show that the wavelength shift of a fibre Bragg grating with temperature can be precisely measured by this interrogation technique. The temperature accuracy and wavelength resolution of the sensor system are smaller than 0.08°C and 0.8pm, respectively. If the FBG 3dB-bandwidth is 0.2nm with the wavelength spacing between two adjacent FBGs of 1.4nm, the temperature and wavelength errors caused by crosstalk are respectively 0.01°C and 0.1pm. |
| |
| Keywords: | 42.81.Pa 42.79.Qx 07.07.Df |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理快报》浏览原始摘要信息 |
|
点击此处可从《中国物理快报》下载免费的PDF全文 |
