对影响太赫兹光学非对称解复用器 (TOAD)开关窗口的半导体光放大器 (SOA)的注入电流和在环路中的偏移量这两个因素进行了数值模拟及实验研究 ,加大注入电流可以增加SOA的增益 ,使得开关窗口的高度增加 ;SOA在环路中的偏移量决定了开关窗口的宽度。由于实验中用连续光代替信号脉冲以观察开关窗口 ,可以看到随着偏移量的增大 ,开关窗口的主窗口的宽度先增大 ,当窗口宽度为控制脉冲周期的一半后 ,开关窗口的主窗口的宽度又变小 In this paper, we numerically simulate and experimentally investigate the injection current and the offset in the loop of a semiconductor optical amplifier (SOA) that affects the switching window of a terahertz optical asymmetric demultiplexer (TOAD) The current can increase the gain of the SOA so that the height of the switching window increases; the offset of the SOA in the loop determines the width of the switching window. Because the experiment uses continuous light instead of signal pulse to observe the switch window, we can see that as the offset increases, the width of the main window of the switch window first increases. When the window width is half of the control pulse period, the switch window The width of the main window becomes smaller again