The purpose of this part of IEC 61300 is to measure the directivity of light between channels of a multiport non-wavelength-selective MxN fibre optic branching device. The directivity is defined as the fraction of the light that goes from an input path to another input optical path, normally isolated from the previous one.
IEC 61300-3-20-2001由国际电工委员会 IX-IEC 发布于 2001-04。
IEC 61300-3-20-2001 在中国标准分类中归属于: M33 光通信设备,在国际标准分类中归属于: 33.180.20 纤维光学和光学互连器件。
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