【摘要】 为了降低主振荡放大激光器(Master oscillator power amplifier, MOPA)光纤激光器驱动系统的热耗散、提高其电光效率和单脉冲输出能量,提出了一种风冷恒温运行技术和智能程控电源方法。基于驱动电源的总体设计目标,从制冷方式、制冷器件的选择等方面进行了研究,实现了对整个激光器系统温度的精确控制,系统运行温度误差为±0.5℃。研究了放大抽运源激光输出能量、输入电压随输入电流的关系,实现了抽运源恒流驱动电流大于10 A,脉冲驱动电流大于20 A的设计要求。实验结果对MOPA光纤激光器的优化设计具有重要的参考作用。更多还原

【Abstract】 In order to reduce the thermal dissipation of master oscillator power amplifier(MOPA) fiber laser drive system, and improve its electro-optical efficiency and output energy of single pulse, a method of air-cooled constant temperature operation and intelligent program-controlled power supply is proposed.According to the overall design goal of the drive power, detailed research is carried out on refrigeration mode and selection of the refrigerating device. The temperature control of the whole laser system is realized, and temperature error of the system is ±0.5 ℃. The relationship between amplifier pump output energy, input voltage and input current is investigated. The constant current driving current of the pump source is larger than 10 A, and the driving current of the pulse is larger than 20 A. The experimental results have a significant reference value for design of MOPA fiber laser.更多还原