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Temperature and strain sensing characteristics of the tilted fiber Bragg grating

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【Author】 ZHANG Wei-hua1,2**, YANG Bao-he1, TONG Zheng-rong1, MIAO Yin-ping2, LIU Bo2, and DONG Xiao-yi2 1. School of Electronics Information and Communications Engineering, Tianjin University of Technology, Tianjin 300191, China 2. Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education, Institute of Modern Optics, Nankai University, Tianjin 300071, China

【机构】 School of Electronics Information and Communications Engineering, Tianjin University of Technology； Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education, Institute of Modern Optics, Nankai University；

【摘要】 Theoretical and experimental studies on the tilted fiber Bragg grating (TFBG) temperature and strain sensing characteristics are conducted. The TFBG is stuck to the surface of the beam along the axis direction. When the free end of the beam is forced, both the strain and temperature will induce wavelength shifts. The temperature characteristic of TFBG cladding modes is similar to that of the core mode while the strain characteristics of TFBG core mode and cladding modes are different. A novel method to discriminate the temperature and strain simultaneously is put forward based on TFBG sensing characteristics.更多还原

【Abstract】 Theoretical and experimental studies on the tilted fiber Bragg grating (TFBG) temperature and strain sensing characteristics are conducted. The TFBG is stuck to the surface of the beam along the axis direction. When the free end of the beam is forced, both the strain and temperature will induce wavelength shifts. The temperature characteristic of TFBG cladding modes is similar to that of the core mode while the strain characteristics of TFBG core mode and cladding modes are different. A novel method to discriminate the temperature and strain simultaneously is put forward based on TFBG sensing characteristics.更多还原

【关键词】 Bragg； grating； cladding； discriminate； refractive； fitting； stuck； discrimination； embedding； simultaneous；

【基金】 supported by the National Natural Science Foundation of China (No. 60736079);the Education Foundation of Tianjin (Nos.20060609 and 2006BA28)

【文献出处】 Optoelectronics Letters ,光电子快报(英文版) , 编辑部邮箱 ,2010年05期

【分类号】TN253
【被引频次】7
【下载频次】184

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