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Dueling lasers! A comparative analysis of two different sodium laser technologies on sky

Marin, Eduardo; Sivo, Gaetano; Garrel, Vincent; Andersen, Morten; Rigaut, Francois; van Dam, Marcos A; Neichel, Benoit; Moreno, Cristian; Chirre, Emmanuel; Hankla, A; Carrasco, Rodrigo

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Sodium guide star technologies for Adaptive Optics (AO) have been around for over 20 years. During this time, the technologies for the lasers used to excite the mesospheric sodium have been in constant development, with the goals being not only to excite as much sodium as possible, but to do so efficiently, while producing a round guide star, and while offering a reliable facility. The first lasers in use were dye lasers with a liquid gain medium, while these lasers were able to produce sodium...[Show more]

dc.contributor.authorMarin, Eduardo
dc.contributor.authorSivo, Gaetano
dc.contributor.authorGarrel, Vincent
dc.contributor.authorAndersen, Morten
dc.contributor.authorRigaut, Francois
dc.contributor.authorvan Dam, Marcos A
dc.contributor.authorNeichel, Benoit
dc.contributor.authorMoreno, Cristian
dc.contributor.authorChirre, Emmanuel
dc.contributor.authorHankla, A
dc.contributor.authorCarrasco, Rodrigo
dc.contributor.editorLaird Close
dc.contributor.editorLaura Schreiber
dc.contributor.editorDirk Schmidt
dc.coverage.spatialAustin, United States
dc.date.accessioned2020-07-06T23:38:38Z
dc.date.available2020-07-06T23:38:38Z
dc.date.createdJune 10-15 2018
dc.identifier.citationEduardo Marin, Gaetano Sivo, Vincent Garrel, Morten Andersen, Francois Rigaut, Marcos van Dam, Benoit Neichel, Cristian Moreno, Emmanuel Chirre, Allen Hankla, Rodrigo Carrasco, Constanza Araujo, Gabriel Perez, Pablo Diaz, Angelic Ebbers, Paul Collins, Vicente Vergara, Joy Chavez, Lindsay Magill, Ariel Lopez, Michiel van der Hoeven, Rene Rutten, Paul Hirst, Manuel Lazo, "Dueling lasers! A comparative analysis of two different sodium laser technologies on sky," Proc. SPIE 10703, Adaptive Optics Systems VI, 107033N (11 July 2018); doi: 10.1117/12.2312768
dc.identifier.isbn9781510619593
dc.identifier.urihttp://hdl.handle.net/1885/205838
dc.description.abstractSodium guide star technologies for Adaptive Optics (AO) have been around for over 20 years. During this time, the technologies for the lasers used to excite the mesospheric sodium have been in constant development, with the goals being not only to excite as much sodium as possible, but to do so efficiently, while producing a round guide star, and while offering a reliable facility. The first lasers in use were dye lasers with a liquid gain medium, while these lasers were able to produce sodium guide stars, the liquid dye used was toxic and flammable. The second generation of guide star lasers used sum-frequency-mixed solid-state lasers. These lasers provided excellent return but were notoriously difficult to calibrate and maintain, requiring a full-time laser engineer on staff. The current third generation of sodium guide star lasers use Raman fiber amplification to generate a laser that is very efficient at exciting sodium with a good spot profile and offer a high degree of reliability. The Gemini South observatory for the last few years has been in the process of obtaining one of these third-generation lasers, a Toptica Sodium Star 20/2 while maintaining its second-generation Lockheed Martin Coherent Technologies (LMCT) 50W CW Mode-locked laser. In October of 2017 successful on-sky commissioning of the Toptica laser was executed while the LMCT laser was still active and in operations. During the course of the commissioning run both lasers were used on sky in close in time in possible. We present a comparative study of the performance of each laser.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherSPIE
dc.relation.ispartofseriesSPIE Astronomical Telescopes + Instrumentation, 2018
dc.rights© 2018 SPIE
dc.sourceProceedings of SPIE
dc.titleDueling lasers! A comparative analysis of two different sodium laser technologies on sky
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2018
local.identifier.absfor020102 - Astronomical and Space Instrumentation
local.identifier.absfor020502 - Lasers and Quantum Electronics
local.identifier.absfor020503 - Nonlinear Optics and Spectroscopy
local.identifier.ariespublicationu3102795xPUB2805
local.publisher.urlhttps://spie.org/
local.type.statusPublished Version
local.contributor.affiliationMarin, Eduardo, Gemini Observatory
local.contributor.affiliationSivo, Gaetano, Gemini South Observatory
local.contributor.affiliationGarrel, Vincent, Max Planck Institut fuer extraterrestrische Physik
local.contributor.affiliationAndersen, Morten, Gemini Observatory
local.contributor.affiliationRigaut, Francois, College of Science, ANU
local.contributor.affiliationvan Dam, Marcos A, Flat Wavefronts
local.contributor.affiliationNeichel, Benoit, Laboratoire d’Astrophysique de Marseille
local.contributor.affiliationMoreno, Cristian, Gemini Observatory
local.contributor.affiliationChirre, Emmanuel, Gemini South Observatory
local.contributor.affiliationHankla, A, Peak to Peak Charter School
local.contributor.affiliationCarrasco, Rodrigo, Gemini Observatory
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage8
local.identifier.doi10.1117/12.2312768
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2020-03-08T07:19:35Z
local.identifier.thomsonIDWOS:000452819300111
dcterms.accessRightsOpen Access
dc.provenancehttps://spie.org/x566.xml?SSO=1..."The right to post an author-prepared version or an official version (preferred version) of the published paper on an internal or external server controlled exclusively by the author/employer, or the entity funding the research, provided that (a) such posting is noncommercial in nature and the paper is made available to users without charge; (b) a copyright notice and full citation appear with the paper, and (c) a link to SPIE’s official online version of the abstract is provided using the DOI (Document Object Identifier) link." from the publisher site (as at 7 July 2020). Copyright 2018 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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