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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:常态Y分支数字光学开关和可变光学衰减器
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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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