中国激光, 2019, 46 (2): 0215001, 网络出版: 2019-05-09
LD抽运钾蒸气激光器 下载: 859次
Diode Pumped Potassium Vapor Laser
摘要
采用平面光栅搭建外腔压窄单巴条半导体激光器线宽,得到中心波长为 766.5 nm、线宽为0.12 nm的抽运光。抽运光经光束整形后聚焦到长度为8 mm的钾蒸气室中心,蒸气室内充有600 Torr (1 Torr=133.322 Pa)氦气作为缓冲气体。保持钾蒸气室温度为190 ℃,获得了中心波长为769.9 nm 、功率为138 mW的线偏振钾激光输出。
Abstract
An external cavity is built with a plane grating to narrow the linewidth of the diode bar laser, and the pumped laser with center wavelength of 766.5 nm and linewidth of 0.12 nm is obtained. After the beam shaping, the laser is focused on a potassium vapor cell center, which is 8 mm long and is filled with 600 Torr (1 Torr=133.322 Pa) helium as buffer gas. Keeping the potassium vapor cell's temperature at 190 ℃, we obtain output power of 138 mW with 769.9 nm center wavelength of potassium laser.
宁方晋, 谭荣清, 刘松阳, 胡列懋, 李志永. LD抽运钾蒸气激光器[J]. 中国激光, 2019, 46(2): 0215001. Fangjin Ning, Rongqing Tan, Songyang Liu, Liemao Hu, Zhiyong Li. Diode Pumped Potassium Vapor Laser[J]. Chinese Journal of Lasers, 2019, 46(2): 0215001.