Distance measurement with the low coherent interferometer with silver mirror (the source wavelegth 1310 nm) - 70 um (serie 2)

The obtained data was acquired by the interferometric fiber-optic sensor of distance. The setup was constructed of a broadband light source working at the central wavelength of 1310 nm, an optical spectrum analyzer, and a fiber-optic 2x1 coupler (with the power split 50:50). All elements were connected by standard single-mode optical fibers. The measurement head was made by a polished fiber end-face and an external mirror placed parallel to the fiber, creating a Fabry-Perot cavity. The silver film played the role of the mirror.  The cavity length was changed by the use of a micrometer screw. Air was fulfilling the cavity during the whole experiment.
Measurements of distance were performed in the range of 0 – 200 µm with a step of 10 µm. 
In the first column, there is the value of the wavelength [nm].
In the second column, there is the value of the power density [W].
  Figure. The measurement system: micromechanical system, fibers, source, optical spectrum analyzer.

本数据集所用数据均采集自干涉型光纤测距传感器（interferometric fiber-optic sensor of distance）。
实验搭建的测量系统包含中心波长为1310 nm的宽带光源、光谱分析仪（optical spectrum analyzer）以及分光比50:50的光纤2×1耦合器（fiber-optic 2x1 coupler），所有器件均通过标准单模光纤进行连接。
测量探头由抛光后的光纤端面与平行于光纤放置的外反射镜构成，形成法布里-珀罗腔（Fabry-Perot cavity）；银膜充当该反射镜。腔长通过千分尺螺杆进行调节，整个实验过程中腔体内均充满空气。
本次测距测量的量程范围为0~200 µm，测量步长为10 µm。
数据集第一列为波长数值，单位为nm；第二列为功率密度数值，单位为W。
附图：测量系统示意图，包含微机械系统、光纤、光源及光谱分析仪。