A structure of the switch is given, which has an ideal extinction ratio and is characterized by its easy alignment and no strict confinement of the length along Z-axis.
介绍了这类开关的一种结构，它有理想的消光比，并具有校准方便，对沿Z轴长度无严格限制等特点。
A structure of the switch is given, which has an ideal extinction ratio and is characterized by its easy alignment and no strict confinement of the length along Z-axis.
介绍了这类开关的一种结构，它有理想的消光比，并具有校准方便，对沿Z轴长度无严格限制等特点。
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