Dye lasers used in CSSAR sodium fluorescence Doppler lidar

	Dye lasers used in CSSAR sodium fluorescence Doppler lidar
	Yan, Zhaoai; Hu, Xiong; Guo, Shangyong; Cheng, Yongqiang
	2011
会议名称	International Symposium on Photoelectronic Detection and Imaging 2011 - Laser Sensing and Imaging and Biological and Medical Applications of Photonics Sensing and Imaging
会议日期	MAY 24-26, 2011
会议地点	Beijing, PEOPLES R CHINA
关键词	Dye laser Pulsed dye amplifier Sodium fluorescence Doppler lidar Mesopause region
页码	81924O
通讯作者	Yan, ZA (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
中文摘要	Mesopause wind and temperature is of great importance for the research on atmospheric dynamics. Center for Space Science and Applied Research, Chinese Academy of Sciences (CSSAR) has developed the first sodium fluorescence Doppler lidar in China to probe the wind and temperature in the mesopause region (about 75-115km). This lidar system employs a narrowband CW dye laser and a pulsed dye amplifier to excite sodium atoms existing in the mesopause region, therefore to induce resonance fluorescence. Atmospheric wind and temperature profiles can be deduced from the backscattered fluorescence collected by lidar receiver. The CW dye laser used in this lidar has narrowband linewidth similar to 100KHz with the help of some frequency-selective elements. Pound-Drever-Hall technique and Doppler-free saturated spectroscopy technique are applied in this laser to achieve long term laser frequency stabilization. The laser frequency is locked at sodium D2a line with similar to +/- 2MHz precision for hours. In order to obtain enough energy pulsed laser sent to mesopause region, a pulsed dye amplifier has been developed to amplify the CW dye laser's power. It has three amplification stages, output similar to 1.5W, 30Hz 589nm pulsed laser when the CW laser's power is about 200mW.
英文摘要	Mesopause wind and temperature is of great importance for the research on atmospheric dynamics. Center for Space Science and Applied Research, Chinese Academy of Sciences (CSSAR) has developed the first sodium fluorescence Doppler lidar in China to probe the wind and temperature in the mesopause region (about 75-115km). This lidar system employs a narrowband CW dye laser and a pulsed dye amplifier to excite sodium atoms existing in the mesopause region, therefore to induce resonance fluorescence. Atmospheric wind and temperature profiles can be deduced from the backscattered fluorescence collected by lidar receiver. The CW dye laser used in this lidar has narrowband linewidth similar to 100KHz with the help of some frequency-selective elements. Pound-Drever-Hall technique and Doppler-free saturated spectroscopy technique are applied in this laser to achieve long term laser frequency stabilization. The laser frequency is locked at sodium D2a line with similar to +/- 2MHz precision for hours. In order to obtain enough energy pulsed laser sent to mesopause region, a pulsed dye amplifier has been developed to amplify the CW dye laser's power. It has three amplification stages, output similar to 1.5W, 30Hz 589nm pulsed laser when the CW laser's power is about 200mW.
收录类别	EI ; CPCI
会议主办者	SPIE, Photoelect Technol Profess Comm, CSA, Tianjin Jinhang Inst Tech Phys, CASIC, Sci & Technol Low Light Level Night Vision Lab, Chinese Soc Astronaut
会议录	INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2011: LASER SENSING AND IMAGING AND BIOLOGICAL AND MEDICAL APPLICATIONS OF PHOTONICS SENSING AND IMAGING
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	BELLINGHAM
学科主题	空间环境
语种	英语
ISSN号	0277-786X
ISBN号	978-0-81948-833-6
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/2868]
专题	国家空间科学中心_空间环境部
推荐引用方式 GB/T 7714	Yan, Zhaoai,Hu, Xiong,Guo, Shangyong,et al. Dye lasers used in CSSAR sodium fluorescence Doppler lidar[C]. 见:International Symposium on Photoelectronic Detection and Imaging 2011 - Laser Sensing and Imaging and Biological and Medical Applications of Photonics Sensing and Imaging. Beijing, PEOPLES R CHINA. MAY 24-26, 2011.