以光纤马赫曾德尔干涉仪作为光强度调制器件,通过光纤耦合器构造光电反馈回路搭建了一种新型电光混合型光学双稳装置。对光学双稳原理进行了研究分析,用图解法形象地解释了双稳工作原理,并且通过在实验中改变该器件的输入光强实现了光学双稳态,得到的光学双稳现象显著,双稳工作状态稳定。该器件有诸多重要应用,如工作在稳态区域时可用做光纤激光功率稳定器,工作在开关区域时可用作光开光、光路由器。 A novel electro-optic hybrid optical bistable device was constructed by using the optical fiber Mach-Zehnder interferometer as a light intensity modulation device and a fiber-optic coupler to construct a photoelectric feedback loop. The principle of optical bistable has been studied and analyzed. The bistable working principle has been explained by the graphic method. The optical bistability has been achieved by changing the input light intensity of the device. The optical bistable phenomenon is obvious. The double Steady working conditions stable. The device has many important applications, such as working as a fiber laser power stabilizer in steady-state regions and as a light-emitting and optical router when operating in the switching region.