Temperature and Refractive Index Measurements Using Long-Period Fiber Gratings Fabricated by Femtosecond Laser

摘要：

Long-period fiber gratings(LPFG) have attracted more attention than fiber Bragg gratings(FBG) and other sensors in recent years due to their wide applications in various physical parameter measurements such as temperature, strain, bought, concentration and refractive index sensitivity. We attempt to encapsulate LPFG with a series of method of raising the temperature sensitization such as using large coefficient of thermal expansion of epoxy polymer and Aluminum, which comparative with bare LPFG in temperature sensor; The results show that the temperature sensitivity of encapsulated LPFG have more 5 times than that of bare LPFG. In addition, we also research the relationship between resonant wavelength and surrounding refractive index（SRI）when LPFG immersed in refractive index of solution of different index at 20 degree Celsius.

关键词： Femtosecond laser pulse micromachining long-period fiber gratings temperature sensor Surrounding refractive index

作者: Yongqin Yu Kai Yi Jiarong Zheng Shuangchen Ruan Chenlin Du Jianhui Huang Wansheng Zhong

作者单位: Shenzhen Key Laboratory of Laser Engineering,Shenzhen, Guangdong P.R.China 518060 College of Physica Shenzhen Key Laboratory of Laser Engineering,Shenzhen, Guangdong P.R.China 518060 College of Physical Science and Technology, Shenzhen University, Guangdong P.R.China 518060

会议类型: 国际会议

会议名称: 2011亚洲光纤通信与光电国际会议

会议地点: 上海

会议语种:英文

页码: 1-4

在线出版日期: 2011-11-13（万方平台首次上网日期，不代表论文的发表时间）