介绍一种紧凑的、能以较低输入光功率工作的光学双稳器件，由光电检测器、光纤定向耦合器和半导体激光二极管组合而成的。
A compact, low input power optical bistable device, combined with photodetector and optical fiber directional coupler and semiconductor laser diode, was presented.
' h '桥梁设计建立在一个现有的印刷电路板的，基本上只是一个完整的控制器电路和两个输出阶段联系在一起，在输入光电耦合器。
The 'h' Bridge design built on one of the existing PCB's, basically just one complete controller circuit and two output stages linked together at the input of the optocouplers.
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