How to Realize Optical Path Closed-loop Control in Laser Stabilization System
Laser stabilization systems can be used to counteract or correct optical path changes caused by external vibrations or other factors, which plays a vital role in imaging, optical communication and other applications. The most common approach is to use electrical feedback loops, such as the PI or PID type. Electro-optical modulator can be used to control power, and the servo system bandwidth is very high. Reasonable design of feedback circuit is very important to achieve effective noise suppression in a large bandwidth range...