High-order laser guide star performance for the Euro50 telescope
(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:
https://lup.lub.lu.se/record/249870
- author
- Fan, Chengyu LU ; Owner-Petersen, Mette LU ; Andersen, Torben LU and Ardeberg, Arne LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Optics Express
- volume
- 13
- issue
- 5
- pages
- 1377 - 1383
- publisher
- Optical Society of America
- 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
- 2016-04-01 15:34:10
- date last changed
- 2024-01-10 16:51:36
@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 = {{Optical Society of America}}, series = {{Optics Express}}, title = {{High-order laser guide star performance for the Euro50 telescope}}, url = {{http://www.opticsinfobase.org/abstract.cfm?id=82890}}, volume = {{13}}, year = {{2005}}, }