IOE OpenIR  > 自适应光学技术研究室(八室)
Department自适应光学技术研究室(八室)
Controlling the Laser Guide Star power density distribution at Sodium layer by combining Pre-correction and Beam-shaping
Huang, Jian1,2,3; Wei, Kai1,2; Jin, Kai1,2,3; Li, Min1,2; Zhang, YuDong1,2
Source PublicationOPTICS COMMUNICATIONS
Volume416Pages:172-180
2018-06-01
Language英语
ISSN0030-4018
DOI10.1016/j.optcom.2018.02.005
Indexed BySCI ; Ei
WOS IDWOS:000427535300028
EI Accession Number20180804820552
SubtypeJ
AbstractThe Sodium laser guide star (LGS) plays a key role in modern astronomical Adaptive Optics Systems (AOSs). The spot size and photon return of the Sodium LGS depend strongly on the laser power density distribution at the Sodium layer and thus affect the performance of the AOS. The power density distribution is degraded by turbulence in the uplink path, launch system aberrations, the beam quality of the laser, and so forth. Even without any aberrations, the TE00 Gaussian type is still not the optimal power density distribution to obtain the best balance between the measurement error and temporal error. To optimize and control the LGS power density distribution at the Sodium layer to an expected distribution type, a method that combines pre-correction and beam-shaping is proposed. A typical result shows that under strong turbulence (Fried parameter (r(0)) of 5 cm) and for a quasi-continuous wave Sodium laser (power (P) of 15 W), in the best case, our method can effectively optimize the distribution from the Gaussian type to the "top-hat'' type and enhance the photon return flux of the Sodium LGS; at the same time, the total error of the AOS is decreased by 36% with our technique for a high power laser and poor seeing.
KeywordAdaptive optics Power distribution Pre-correction Laser beam shaping Atmospheric propagation Atmospheric turbulence
WOS KeywordON-SKY TEST ; DEFORMABLE MIRRORS ; ADAPTIVE OPTICS ; SCINTILLATION ; PROJECTION ; ASTRONOMY ; SYSTEMS
EI KeywordsAtmospheric thermodynamics ; Atmospheric turbulence ; Errors ; Gaussian beams ; High power lasers ; Laser beams ; Photons ; Sodium ; Stars
EI Classification Number443.1 Atmospheric Properties ; 549.1 Alkali Metals ; 657.2 Extraterrestrial Physics and Stellar Phenomena ; 711 Electromagnetic Waves ; 741.1 Light/Optics ; 744.1 Lasers, General ; 744.8 Laser Beam Interactions ; 931.3 Atomic and Molecular Physics
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/9335
Collection自适应光学技术研究室(八室)
Affiliation1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China;
2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China;
3.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Huang, Jian,Wei, Kai,Jin, Kai,et al. Controlling the Laser Guide Star power density distribution at Sodium layer by combining Pre-correction and Beam-shaping[J]. OPTICS COMMUNICATIONS,2018,416:172-180.
APA Huang, Jian,Wei, Kai,Jin, Kai,Li, Min,&Zhang, YuDong.(2018).Controlling the Laser Guide Star power density distribution at Sodium layer by combining Pre-correction and Beam-shaping.OPTICS COMMUNICATIONS,416,172-180.
MLA Huang, Jian,et al."Controlling the Laser Guide Star power density distribution at Sodium layer by combining Pre-correction and Beam-shaping".OPTICS COMMUNICATIONS 416(2018):172-180.
Files in This Item:
File Name/Size DocType Version Access License
2018-2102.pdf(2753KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Huang, Jian]'s Articles
[Wei, Kai]'s Articles
[Jin, Kai]'s Articles
Baidu academic
Similar articles in Baidu academic
[Huang, Jian]'s Articles
[Wei, Kai]'s Articles
[Jin, Kai]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Huang, Jian]'s Articles
[Wei, Kai]'s Articles
[Jin, Kai]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.