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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 Y branch digital optical switches and light to improve the protection of the optical communication channel in the event of a power loss relates to a damper device .
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