With the increase of the periods and the absolute value of refractive index difference, the full width at half maximum of spectrum decreases.
介质折射率差的绝对值越大、周期数增加都使透射波谱宽度变窄。
In this article, the influences of the mode field diameter, the cutoff wavelength and the relative refractive index difference on the OTDR curve are also verified.
文中还验证了单模光纤的模场直径、截止波长、相对折射率差对OTDR曲线的影响。
If the refractive index is larger, the translocation difference of the measurement volume is larger.
管壁材料的折射率越大，测量体的位置与管壁厚趋时位移差也越大。
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