可远程控制的大功率半导体激光系统

Development of a high power diode laser system with remote control

研制了一种可远程控制的大功率半导体激光系统,采用基于ARM Cortex-M3内核的STM32F103RCT6芯片进行主控制器的设计,研制出可数字化调节的半导体激光器驱动电路,采用集成化的数字温控模块TCM-X107驱动TEC的方式实现激光器温度调节,可用上位机通过RS-422信号线对光源进行远程控制,最后对系统功能进行了测试。测试结果表明:系统控制808 nm半导体激光器以额定功率50 W连续工作时,输出精度优于1%;激光光谱稳定度满足预期指标。该系统利用微处理器多串口的特点完成了主控制器与上位机、独立温度控制器的分别通信,对于日益广泛的系统集成应用具有借鉴意义。

A high-power semiconductor laser system with remote control is developed.The main controller is STM32 F103 RCT6 chip based on ARM Cortex-M3 kernel.A semiconductor laser drive circuit that can be digitally adjusted is developed.The integrated digital temperature control module TCM-X107 is used to drive TEC to realize laser temperature regulation.The remote control of light source can be carried out by computer through RS-422 signal line.Finally,the function of the system is tested.The test results show that the output accuracy of 808 nm semiconductor laser is better than 1%when the system controls 808 nm semiconductor laser is working continuously at 50 W rated power,and the laser spectral stability meets the expected target.The system makes use of the characteristics of multi-serial port of the chip to realize the communication between the main controller and the host computer and the independent temperature controller respectively,which has reference significance for the increasingly widespread application of system integration.