将一根光纤传输的光按比例分离至两根光纤传输，也可反向耦合两根光纤传输的光至一根光纤传输
提供50:50，10:90，1:99，25:75等多种耦合比例
波长在405-2000 nm范围内多种可选
提供50:50，10:90，1:99等多种分配或耦合比例
波长在670-2000 nm范围内多种可选
低插入损耗、低附加损耗、高回波损耗、高消光比
将1根光纤的光均分到4根光纤进行传输
低插入损耗、低附加损耗、高回波损耗
波长在560-1550 nm范围内多种可选
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