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High-order laser guide star performance for the Euro50 telescope

Fan, Chengyu LU ; Owner-Petersen, Mette LU ; Andersen, Torben LU and Ardeberg, Arne LU (2005) In Optics Express 13(5). p.1377-1383
Abstract
High-order laser guide star performance for the Euro50 telescope is analyzed. Focus anisoplanatism residual errors using multiple LGSs are obtained by numerical simulations. Results calculated for annual mean conditions at the La Palma site show that, considering only focus anisoplanatism, it will be possible to obtain a Strehl ratio of 0.72 similar to 0.82 at 2.2 mum using 13 LGSs. A Strehl ratio of 0.60 similar to 0.70 can be obtained at 1.25 mum using 21 LGSs. The dependence of wavefront measurement error on pulsed laser power is also investigated. The variance of the measurement error is lower than 0.2 rad(2) when the laser power is larger than 14 W.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
13
issue
5
pages
1377 - 1383
publisher
OSA
external identifiers
  • wos:000227487700004
  • scopus:17444411588
ISSN
1094-4087
language
English
LU publication?
yes
id
725527eb-81c3-40d2-ac05-08a765d27508 (old id 249870)
alternative location
http://www.opticsinfobase.org/abstract.cfm?id=82890
date added to LUP
2007-08-14 13:40:38
date last changed
2017-01-01 06:42:17
@article{725527eb-81c3-40d2-ac05-08a765d27508,
  abstract     = {High-order laser guide star performance for the Euro50 telescope is analyzed. Focus anisoplanatism residual errors using multiple LGSs are obtained by numerical simulations. Results calculated for annual mean conditions at the La Palma site show that, considering only focus anisoplanatism, it will be possible to obtain a Strehl ratio of 0.72 similar to 0.82 at 2.2 mum using 13 LGSs. A Strehl ratio of 0.60 similar to 0.70 can be obtained at 1.25 mum using 21 LGSs. The dependence of wavefront measurement error on pulsed laser power is also investigated. The variance of the measurement error is lower than 0.2 rad(2) when the laser power is larger than 14 W.},
  author       = {Fan, Chengyu and Owner-Petersen, Mette and Andersen, Torben and Ardeberg, Arne},
  issn         = {1094-4087},
  language     = {eng},
  number       = {5},
  pages        = {1377--1383},
  publisher    = {OSA},
  series       = {Optics Express},
  title        = {High-order laser guide star performance for the Euro50 telescope},
  volume       = {13},
  year         = {2005},
}