中国激光, 2005, 32 (1): 1, 网络出版: 2006-06-01
顺序放电高重复频率TEA CO2激光器
High Rep-Rate TEA CO2 Laser with Sequential Discharge
激光技术 高重复频率TEA CO2激光器 同步放电 顺序放电 双脉冲输出 laser technique high rep-rate TEA CO2 laser synchronous discharge sequential discharge pulse-pair output
摘要
研制了一台高重复频率顺序放电TEA CO2激光器,由共用光学谐振腔的两节相同放电组件组成,单组件的有效增益体积为2.5 cm×2.5 cm×55 cm。激光器允许以不同的双脉冲时间间隔和不同的脉冲重复频率工作并产生高峰值功率输出双脉冲。当两组件以200 Hz重复频率同步放电时,激光器输出平均功率为1.1 kW;当两组件以400 Hz重复频率顺序放电时,输出平均功率为550 W,双脉冲时间间隔为2.5 ms。在同一脉冲重复频率下,激光器的平均输出功率随双脉冲间隔的增大而减小。实验还测量了不同双脉冲间隔下,激光器的输出双脉冲波形。
Abstract
A high rep-rate TEA CO2 laser with two sets of electrodes in the optical cavity is described. Each set of electrodes has an active gain volume of 2.5 cm×2.5 cm×55 cm. The device produces high intensity pulse pairs with varied time separations and varied rep-rates. When the two sets of electrodes discharge synchronously, the device generates an average output power of 1.1 kW with rep-rate 200 Hz. When the two sets of electrodes discharge sequentially, the device generates an average output power of 550 W with rep-rate 400 Hz and maximum pulse-pair interval of 2.5 ms. With the same rep-rate, the average output power from the device decreases with the increase of the pulse-pair time interval. In addition, the pulse-pair profiles with various time intervals are given.
吴谨, 王东蕾, 唐永新, 刘世明, 万重怡. 顺序放电高重复频率TEA CO2激光器[J]. 中国激光, 2005, 32(1): 1. 吴谨, 王东蕾, 唐永新, 刘世明, 万重怡. High Rep-Rate TEA CO2 Laser with Sequential Discharge[J]. Chinese Journal of Lasers, 2005, 32(1): 1.