An effective method of temperature compensation about long-period fiber grating with strain characteristic

摘要：

In this paper,we demonstrate an effective method to compensate the temperature effect of long period fiber grating(LPFG).First it is found that the resonant wavelength of LPFG showes a right shift when the temperature increases while it has an opposite shift when the applied strain increases.On the basis of the characteristic,plexiglass is used to compensate the shift of the resonant wavelength induced by the temperature change.The temperature characteristic of compensated LPFG has been performed.And the compensation experimental result shows the temperature sensitivity of the resonance wavelength of LPFG is reduced from 55.71pm/℃ to 3.7pm/℃.It is found that the method to compensate temperature is effective and practical.

关键词： Long-period fiber grating temperature compensation thermal expansion coefficient applied strain

作者: Y. Wang D.K. Liang B. Zhou

作者单位: Nanjing University of Aeronautics and Astronautics,No.29 Yudao Street,Nanjing,Jiangsu,China

会议类型: 国际会议

会议名称: The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)

会议地点: 重庆·南京

会议语种:英文

在线出版日期: 2007-05-01（万方平台首次上网日期，不代表论文的发表时间）