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设计和分析了一种新型的用于全光通信网络的高速微型1×2磁光开关,包括光学光路和高速控制.纳秒脉冲发生器的纳秒脉冲电流用于控制传输1550nm光束的磁光晶体的磁化强度.对纳秒脉冲发生器的电路设计方案和纳秒脉冲磁场设计方案分别进行计算机仿真和实验验证.结果表明:纳秒脉冲发生器能够输出上升沿1.9~3.2ns、上升幅度10~90V和脉宽4~100ns的脉冲.在单片机MCU的控制下,可以实现光束的平稳切换,目前的开关时间小于1μs.
A new type of high-speed miniature 1 × 2 magneto-optical switch for all-optical communication network is designed and analyzed, including optical optical path and high-speed control.The nanosecond pulse current of nanosecond pulse generator is used to control the magneto-optical transmission of 1550nm beam The magnetization of the crystal.The computer simulation and experimental verification of the circuit design and nanosecond pulse magnetic field design of nanosecond pulse generator were carried out.The results show that the nanosecond pulse generator can output the rising edge of 1.9 ~ 3.2ns, the increase of 10 ~ 90V and pulse width 4 ~ 100ns pulse.Under the MCU MCU control, smooth switching of the beam can be achieved, the current switching time is less than 1μs.