基于DSP和CPLD控制的多路并行激光驱动

描述了一种基于DSP和CPLD控制的多路并行激光驱动模块的设计。这种激光驱动模块可以对多路激光管进行驱动和调制,并可兼容不同类型激光管的工作电压和工作电流。激光驱动模块已用于多波长多阶光存储实验系统,可对780nm、650nm和407nm激光器进行驱动和调制。实验结果表明,这种激光驱动模块能够实现对半导体激光器的长时间稳定驱动,并具有灵敏的高频调制能力。它对在光存储中实现波长复用存储技术具有重要作用。

Multiplex parallel laser driver based on DSP and CPLD

A multiplex parallel laser driver module based on DSP and CPLD is described. With this module, laser diodes can be driven in a parallel way, and every diode can be modulated independently. This laser driver module has a good compatibility to the differences of working voltages and currents among different kinds of laser diodes. The module is used to drive the laser sources of the experiment system of multi wavelength and multi level optical storage. The experiment result shows that this module has high stability and excellent ability of modulation, and plays an important part in multi wavelength and multi level optical storage technology.