The principle to obtain low noise laser output is analyzed and a new laser structure and a precise temperature controller are designed to meet the requirement of DVD mastering system.

• 针对DVD母盘系统对激光的特殊要求,分析了低噪声激光输出的实现原理,设计了合理的激光结构和精确的温度控制系统,以保障低噪声高稳定的蓝色激光输出。