相变型光盘驱动器拾音头的几个问题

Some Problems on the Pickup of a Phase-change Optical Disk Driver

简要分析了相变型光盘驱动器光学特性，重点讨论了激光二极管（LD）驱动电路、伺服前置放大器电路及系统传输效率。

An optical characteristis of the phasechange optical disk driver was analyzed. A driver circuit of LD and servo forword amplifier circuit and transmissivity of the optical power of the system were disscused at length in the paper.