三偏振系统用于高精度可调衰减器的实验研究

Investigation on Preicse Adjustable Attenuator Made of Three Polarizers

用三只高消光比的冰洲石偏光棱镜组成的高精度可调光学衰减系统,具有使用波带宽(0.3～3μm),可调范围大(约50 dB),读数精(相对误差小于5％)的优点。

a precise optical attenuator made of three calcite polarizers with high extinctionratios has been provided. The advantages of the system are of wide working band(0.3-3μm), lar-ge and adjustable attenuation factor (near 50 dB) and an accurate readings.