passive Q-switch

例句：

1. 1. The laser system uses a passive Q-switch to achieve high-power output.
   激光系统使用一个被动Q开关来实现高功率输出。
2. 2. The device has a passive Q-switch that can be adjusted for different applications.
   该装置具有一个被动Q开关，可以调整以适应不同的应用。
3. 3. In this case, the passive Q-switch is used to reduce the power consumption of the laser diode.
   在这种情况下，被动Q开关被用来减少激光二极管的功耗。