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In the optical add/drop multiplexer, in order to achieve the same power between the add and pass wavelength channels, can be used.
选项：

A:Optical isolator;
B:Variable optical attenuator ;
C:Optical switch;
D:OTU

发布时间：2024-04-03 22:22:43

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In the optical add/drop multiplexer, in order to achieve the same power between the add and pass wavelength channels, can be used. 选项： A:Optical isolator; B:Variable optical attenuator ; C:Optical switch; D:OTU

In the optical add/drop multiplexer, in order to achieve the same power between the add and pass wavelength channels, can be used.
选项：

A:Optical isolator;
B:Variable optical attenuator ;
C:Optical switch;
D:OTU