强激光与粒子束2012，Vol.24Issue(1)：43-45,3.DOI:10.3788/HPLPB20122401.0043
脉冲功率3kW二极管激光器叠阵的相变冷却
Phase transition cooling of 3 kW pulsed diode laser stack
摘要
Abstract
The paper studies the cooling system of a diode laser stack, and presents a phase transition cooling system using R134a as coolant and a heat sink based on throttle microchannel phase transition cooling. The packaging of the quasi-continuous wave (pulsed) 3 kW laser diode stack is finished. The influence of the temperature difference of coolant at inlet and outlet on the output wavelength of the stack is analyzed. Experimental results show that the stack achieves a 3 030 W peak light-output power with a duty cycle of 20% at a current of 197 A. The wall plug efficiency is 39% and the vaporization rate of R134a in the cooler is 50%. The half width at full maximum of spectrum is smaller than 3. 8 nm. The flow rate of the coolant R134a is 0. 60 L/min, which is about 20% that of water. Therefore, the coolant flow becomes smaller and the volume of the thermal management unit diminishes significantly.关键词
相变冷却/微通道/热沉/二极管激光器/叠阵Key words
phase transition cooling/microchannel/heat sink/diode laser/stacks分类
信息技术与安全科学引用本文复制引用
李弋,高松信,武德勇,杨波,曹宏章..脉冲功率3kW二极管激光器叠阵的相变冷却[J].强激光与粒子束,2012,24(1):43-45,3.基金项目
国家自然科学基金重大项目(60890201) （60890201）
