The spatial resolution of system can be measured directly or evaluated indirectly by the half width of the Fresnelreflection at the end of the fiber.
系统的空间分辨率既可以直接测量,也可以通过测量光纤末端菲涅尔反射的半宽度来间接测量。
2
By IOR (Fresnel reflections) - USES a fixed reflection curve based on the Angle of view and its strength is controlled by the material's index of refraction.
依照折射率(菲涅耳反射)使用一个依据观察角度计算的反射折射,其数值大小依据物质折射率。
3
Due to the Fresnelreflection in optical fiber links there will be dead zone existing in the measurement using OTDR. This paper gives a quantitative analysis of this so called dead zone.