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Update on the TMT laser guide star facility design

Boyer, Corinne and Ellerbroek, Brent and Gedig, Mike and Hileman, Edward and Joyce, Richard and Liang, Ming (2008) Update on the TMT laser guide star facility design. In: Adaptive Optics Systems. Proceedings of SPIE. No.7015. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 70152N. ISBN 9780819472250. http://resolver.caltech.edu/CaltechAUTHORS:20181217-125328556

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Abstract

The Thirty Meter Telescope (TMT) will implement a Laser Guide Star Facility (LGSF), which will generate up to nine Na laser beams in at least four distinct asterisms. The TMT LGSF conceptual design is based upon three 50W solid state, continuous wave, sum frequency 589 nm lasers and conventional beam transport optics. In this paper, we provide an update to the TMT LGSF conceptual design. The LGSF top end and the beam transfer optics have been significantly redesigned to compensate for the TMT telescope top end flexure, to adapt for the new TMT Ritchey-Chretien optical design, to reduce the number of optical surfaces and to reduce the mass and volume. Finally, the laser service enclosure has been relocated within the telescope azimuth structure. This will permit the lasers to operate with a fixed gravity vector, but also requires further changes in the beam transport optical path.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.787603DOIArticle
Additional Information:© 2008 Society of Photo-Optical Instrumentation Engineers. The authors gratefully acknowledge the support of the TMT partner institutions. They are the Association of Canadian Universities for Research in Astronomy (ACURA), the California Institute of Technology and the University of California. This work was supported as well by the Gordon and Betty Moore Foundation, the Canada Foundation for Innovation, the Ontario Ministry of Research and Innovation, the National Research Council of Canada, the Natural Sciences and Engineering Research Council of Canada, the British Columbia Knowledge Development Fund, the Association of Universities for Research in Astronomy (AURA) and the U.S. National Science Foundation.
Group:Thirty Meter Telescope
Funders:
Funding AgencyGrant Number
Association of Canadian Universities for Research in Astronomy (ACURA)UNSPECIFIED
CaltechUNSPECIFIED
University of CaliforniaUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Canada Foundation for InnovationUNSPECIFIED
Ontario Ministry of Research and InnovationUNSPECIFIED
National Research Council of CanadaUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
British Columbia Knowledge Development FundUNSPECIFIED
Association of Universities for Research in Astronomy (AURA)UNSPECIFIED
NSFUNSPECIFIED
Subject Keywords:Thirty Meter Telescope, Adaptive Optics, Laser Guide Star, Beam Transfer Optics
Record Number:CaltechAUTHORS:20181217-125328556
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181217-125328556
Official Citation:Corinne Boyer, Brent Ellerbroek, Mike Gedig, Edward Hileman, Richard Joyce, Ming Liang, "Update on the TMT laser guide star facility design," Proc. SPIE 7015, Adaptive Optics Systems, 70152N (10 July 2008); doi: 10.1117/12.787603
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91866
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Dec 2018 19:38
Last Modified:18 Dec 2018 19:38

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