When measuring multimode fiber, it is necessary to measure in the steady excitation mode.
It becomes the steady excitation mode by transmitting several hundred meters on the actual optical line.
The mode scrambler 100G creates an excitation mode equivalent to long-distance transmission.
・ For GI multimode fiber, effective NA: 0.192
(calculated from -20dB decrease spread angle at FFP)
・ Measurement of GI fiber loss, evaluation of optical connector insertion loss
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