With the peak-seeking servo-controlled technology based on a residual error, an external optical cavity can keep in resonance with the frequency of Ti-sapphire laser in the experiment.

基于有差伺服调节技术，实现了外置光学谐振腔的共振频率与钛宝石激光器工作频率的锁定。

youdao

This paper presents a systematic method for the design of track seeking and following servo controller of high track density optical disk drive.

本文针对高轨道密度光碟机的寻轨伺服与定轨伺服控制问题，提出一个系统化的设计方法。

youdao