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Normally dark y-branch digital optical switches and variable optical attenuators
Normally dark y-branch digital optical switches and variable optical attenuators
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机译:通常是黑暗的Y分支数字光开关和可变光衰减器
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摘要
The present invention is directed to Y-branch digital optical switching and optical attenuator devices, which enhance the security of optical communications channels in the event of an electrical power loss.
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