FC Variable attenuator is general used for testing and measurement, but they also have a wide usage in EDFAs for equalizing the light power among different channels
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SC Variable attenuator is general used for testing and measurement, but they also have a wide usage in EDFAs for equalizing the light power among different channels
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ST Variable attenuator is general used for testing and measurement, but they also have a wide usage in EDFAs for equalizing the light power among different channels
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