NDLI: Progress on high power quasi-continuous-wave sodium beacon laser

Content Provider	IEEE Xplore Digital Library
Author	Peng Qinjun Bo Yong Xie Shiyong Zuo Junwei Wang Baoshan Xu Yiting Wang Zhichao Wang Pengyuan Xu Jialin Cui Dafu Xu Zuyan
Copyright Year	2011
Description	Author affiliation: Research Center for Laser Physics and Technique, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 China (Peng Qinjun; Bo Yong; Xie Shiyong; Zuo Junwei; Wang Baoshan; Xu Yiting; Wang Zhichao; Wang Pengyuan; Xu Jialin; Cui Dafu; Xu Zuyan)
Abstract	A 33W 589 nm sodium beacon laser with the linewidth of 0.4 GHz and the beam quality of $M^{2}$ = 1.2 is achieved by sum-frequency mixing 1064 nm and 1319 nm quasi-continuous-wave (QCW) diode-pumped Nd:YAG lasers with a LBO crystal. The repetition rate of the laser is 500 Hz with the pulse width of 120 μs. Compared with the continuous-wave (CW) sodium beacon laser, the QCW microsecond-pulse sodium beacon laser can provide a gatable pulse format to eliminate the interference of atmospheric Rayleigh scattering and reduce stretching phenomenon of the imaging spot for sodium guide star, so the better correction effect can be achieved by using the adaptive optics system with the microsecond-pulse laser. A microsecond-pulse sodium beacon laser prototype is developed to generate a sodium laser guide star which is observed by the 1.8m telescope in Yunnan province.
Starting Page	1
Ending Page	3
File Size	620738
Page Count	3
File Format	PDF
ISBN	9781457707940
e-ISBN	9781457707964
DOI	10.1109/AISMOT.2011.6159243
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser theory Sum-frequency generation Power lasers Yellow laser Measurement by laser beam Sodium beacon Laser excitation Solid-stated laser Laser beams Quantum cascade lasers
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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