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A multi-beam alignment method at target area for ICF laser facility based on invariant sub-area configuration of the alignment sensor

  • Ning Bo Cheng
  • , Fu Quan Li
  • , Bin Feng
  • , Huai Ting Jia
  • , Yong Xiang
  • , Xiao Feng Wei*
  • *Corresponding author for this work
  • China Academy of Engineering Physics
  • CAS - Institute of Automation

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A multi-beam alignment method is proposed to reduce the total time for aligning at the target area all the laser beams of an ICF laser facility. A number of sub-areas with invariant size and position are extracted from the image acquired by the alignment sensor. An alignment route is comprised of a certain part of those sub-areas, and several alignment routes can cover all the sub-areas. The invariant layout of the sub-areas and the alignment routes is called an invariant sub-area configuration of the alignment sensor. The focused spots of the alignment beams are adjusted in a specific sequence along the alignment routes, and finally reach the desired position on the alignment sensor. The adjustment of all the spots inside each sub-areas is carried out concurrently, and the adjustment along one route for a spot moving from one sub-area into the next sub-area is carried out consecutively. The estimated total time for aligning all the laser beams at target area shows that the proposed multi-beam alignment method has a much higher efficiency.

Original languageEnglish
Title of host publicationXX International Symposium on High-Power Laser Systems and Applications 2014
EditorsXiaolin Tang, Shu Chen, Chun Tang
PublisherSPIE
ISBN (Electronic)9781628413229
DOIs
StatePublished - 2015
Externally publishedYes
Event20th International Symposium on High Power Systems and Applications 2014, HPLS and A 2014 - Chengdu, China
Duration: 25 Aug 201429 Aug 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9255
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference20th International Symposium on High Power Systems and Applications 2014, HPLS and A 2014
Country/TerritoryChina
CityChengdu
Period25/08/1429/08/14

Keywords

  • ICF laser facility
  • beam alignment at target area
  • multi-beam alignment

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