光电工程, 2016, 43 (8): 13, 网络出版: 2016-09-12   

长周期光纤光栅-布拉格光纤光栅多波长解调

Multiple Wavelength Demodulation Method of Long Period Fiber Grating and Fiber Bragg Grating
作者单位
1 燕山大学信息科学与工程学院,河北秦皇岛 066004
2 河北省特种光纤与光纤传感重点实验室,河北秦皇岛 066004
摘要
提出了一种长周期光纤光栅 (Long Period Fiber Grating,LPFG)-布拉格光纤光栅 (Fiber Bragg Grating,FBG)多波长解调方法。 FBG能够反射 LPFG透射光,FBG中心波长的漂移会引起反射光功率的变化,进而改变光电转换电压,从而实现电压对中心波长的解调。由于 LPFG的带宽很宽,而 FBG的带宽很窄,进而一个 LPFG可以实现对多个 FBG的解调。实验结果表明: FBG的中心波长和光电转换后的电压有良好的对应关系。该解调方法结构简单,测量精度高,能够实现对温度、应力等参数的多点测量。
Abstract
A multiple wavelength demodulation method of long period fiber grating and fiber Bragg grating is proposed. Fiber Bragg grating can reflect the long period fiber grating transmission light. The central wavelength shift of fiberBragg grating will cause the change of reflected light power, and the photoelectric conversion voltage can also change accordingly. So the voltage can demodulate the central wavelength. Because the transmission spectrum of long period fiber grating is very wide, the bandwidth of fiber Bragg grating is so narrow, and a long period fiber grating can demodulate a lot of fiber Bragg gratings. The experimental results show that the voltage of central wavelength and the photoelectric conversion of fiber Bragg grating have a good corresponding relationship. The demodulation method has some advantages including simple structure and high accuracy, so it can be used to measure the parameters of temperature and strain.

张燕君, 王光宇, 付兴虎. 长周期光纤光栅-布拉格光纤光栅多波长解调[J]. 光电工程, 2016, 43(8): 13. ZHANG Yanjun, WANG Guangyu, FU Xinghu. Multiple Wavelength Demodulation Method of Long Period Fiber Grating and Fiber Bragg Grating[J]. Opto-Electronic Engineering, 2016, 43(8): 13.

本文已被 3 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!