In this paper, the three methods to reconstruct 3-d refractive index (tempe - rature) fields by means of interferometric holography has been studied based on the priori knowledge of these fields.
本文结合折射率(温度)场的先验知识，研究了用全息干涉度量术重建三维折射率(温度)场的三种方法。
The spectrum of fiber Bragg grating(FBG) in inhomogeneous strain fields is distorted due to its inhomogeneity of both the periods and the effective refractive index.
当非均匀应变场作用在光纤布拉格光栅（FBG）上时，由于FBG周期和有效折射率在沿FBG长度方向都为变量，所以会导致光谱形状的变化。
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