光开关设备，光通路网络，光开关方法、程序，以及记录介质。
Optical switching device, optical access network, optical switching method, program, and recording medium.
光纤CATV传输系统包括光发射机、接收机、纤和必要的光通路器件（光分路器、纤连接器）。
Optical fiber CATV system includes optical transmitter, optical receiver, optical fiber, and essential optical path devices, such as optical splitter, optical connector etc.
光纤CATV传输系统包括光发射机、接收机、纤和必要的光通路器件（光分路器、纤连接器）。
Optical fiber CATV system includes optical transmitter, optical receiver, optical fiber, and essential optical path devices, such as optical splitter, optical connector etc.
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