大功率半导体激光器驱动电源的设计  

High power laser diode drive power supply

作　　者：卢凯[1,2] 刘百玉[3] 白永林[3] 缑永胜[3] 王博[3] 朱炳利[1,2] 欧阳娴[3] 

机构地区：[1]中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,陕西西安710119 [2]中国科学院研究生院,北京100049 [3]中国科学院西安光学精密机械研究所超快诊断技术重点实验室,陕西西安710119

出　　处：《红外与激光工程》2012年第10期2680-2684,共5页Infrared and Laser Engineering

基　　金：科技部民口863项目(2011AA030201);中国科学院科技创新项目(CXJJ-246)

摘　　要：高能激光系统通常需要多种输出模式的驱动电源，现有电源存在输出模式单一的问题。采用能量压缩技术和电流串联负反馈技术实现了多输出模式半导体激光器驱动电源。分析了特殊设计高输入阻抗差分运算电路作为负反馈网络的工作原理，推导出了精确的参考电压与输出电流的关系式。最后，将所研制的驱动电源应用于国内首台400W工业级光纤激光器系统中，驱动电源实现了0—26A连续可调、稳定度优于0．15％。的连续电流和准连续电流输出。测试结果验证了设计思路的可行性，实现了半导体激光器驱动电源的多输出模式和高电流稳定度。High energy laser system typically requires multi-output mode laser diode drive power supply, and existing power supply has the problem of single output mode. In this paper, a laser diode drive power supply with multi-output mode characteristic was designed using power compression and current series negative feedback techniques. The principle of the negative feedback network was analyzed, which was a high input impendent different operation circuit with special design. Precise relationship between reference voltage and output current was deduced. After being applied in the first 400 W industrial fiber laser system of China, the drive power supply realized continuous wave and quasi-continuous wave current output with the value adjusting qontinuous from 0 A to 26 A and the output current stability was better than 0.15%o. Test results demonstrate the feasibility of the design idea to achieve a multi-output mode and high current stability characteristics of the laser diode driver.

关 键 词：LD电源 能量压缩技术 电流负反馈 半导体激光器 

分 类 号：TN710[电子电信—电路与系统]