Analysis of induced-birefringence effects on fiber Bragg gratings
Analysis of induced-birefringence effects on fiber Bragg gratings
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DOI：
10.1006/ofte.2000.0333
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发表时间：
2000-07-01
影响因子：
2.7
通讯作者：
El-Sherif, MA
中科院分区：
文献类型：
--
作者：
Gafsi, R;El-Sherif, MA
本文报道了双折射效应对光纤布拉格光栅（FBG）在传感器、光通信系统和器件中的影响。研究和分析了在平面应变和应力作用下，光栅区受到横向静载荷时，光纤光栅的光学和力学特性的变化。平面应变的结果证实了以前的研究工作中建立的计算。我们将这些计算推广到平面应力，并利用耦合模理论推导出受扰光纤光栅的反射谱。结果与以前发表的平面应变结果吻合良好。模拟结果表明，平面应力下x偏振和y偏振的布拉格反射波长变化比平面应变下显著得多。此外，布拉格反射波长的变化是更重要的x偏振比y偏振的平面应变和平面应力。这项研究对这些器件集成到智能结构和材料以及光通信系统和器件中具有重要意义。(C)北京大学出版社.
This paper reports the birefringence effects on fiber Bragg grating (FBG) in sensors, optical communications systems, and devices. We have studied and analyzed the optical and mechanical property changes of FBG when the grating zone is subjected to a static transverse load in the case of plane strain and stress. The results presented for plane strain confirm the calculations established in previous research work. We extended these calculations for plane stress and used coupled-mode theory to deduce the reflection spectra of the disturbed FBG. Results were in good agreement with previous published results for plane strain. The simulated results show that the Bragg reflection wavelength changes for the x-polarization and the y-polarization are much more significant for plane stress than for plane strain. Moreover, the Bragg reflection wavelength variation is much more important for x-polarization than for y-polarization for both plane strain and plane stress. This research holds implications for the improved integration of these devices into smart structures and materials as well as optical communications systems and devices. (C) 2000 Academic Press.