本文选用液体当作光学设备功能介质,通过微流控技术与其他技术相结合的光衰减器作为研究对象,利用电磁装置来实现对微流体的控制,实现光信号的可控衰减,其优点在于电路设计简单、耗电量低、控制区域大。同时该衰减器还具有体型较小、作用范围较大特征,便于设备集成与微型制造。 In this paper, the liquid is selected as the functional medium of the optical device, and the optical attenuator combined with other technologies is used as the research object. The electromagnetic device is used to control the microfluid and realize the controllable attenuation of the optical signal. Circuit design is simple, low power consumption, large control area. At the same time the attenuator also has a smaller size, a larger range of features, easy integration of equipment and micro-manufacturing.