LFAST- Large Fiber Array Spectroscopic Telescope: prime focus corrector optics

Andy Monson; Joel Berkson; Chad Bender; Roger Angel; Peter Gray; Kevin Gilliam; Chistian Schwab; Warren Foster

doi:10.1117/12.3020341

LFAST- Large Fiber Array Spectroscopic Telescope: prime focus corrector optics

Andy Monson^*, Joel Berkson, Chad Bender, Roger Angel, Peter Gray, Kevin Gilliam, Chistian Schwab, Warren Foster

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

The Large Fiber Array Spectroscopic Telescope (LFAST) is designed to be a cost-efficient way to provide a large collecting area for spectroscopy by duplicating large numbers of small (0.76m f/3.33) spherical mirror 'unit' telescopes. Each telescope is equipped with a prime focus corrector (PFC) feeding a guider and an optical fiber; and all the fiber optics will feed into a large spectrograph. The design of the PFC is driven by the need to minimize costs while achieving acceptable performance. We are currently constructing a prototype 20-unit system for testing in the second half of 2024. For this 20-unit system we have begun coordinating with industry about scaling for mass fabrication. In this paper we will present status updates from the performance of this early version of the prime focus corrector.

Original language	English
Title of host publication	Ground-based and Airborne Telescopes X
Editors	Heather K. Marshall, Jason Spyromilio, Tomonori Usuda
Place of Publication	Bellingham, Washington
Publisher	SPIE
Pages	130944O-1-130944O-6
Number of pages	6
ISBN (Electronic)	9781510675124
ISBN (Print)	9781510675117
DOIs	https://doi.org/10.1117/12.3020341
Publication status	Published - 1 Sept 2024
Event	Ground-Based and Airborne Telescopes X 2024 - Yokohama, Japan Duration: 16 Jun 2024 → 21 Jun 2024

Publication series

Name	Proceedings of SPIE
Volume	13094
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Ground-Based and Airborne Telescopes X 2024
Country/Territory	Japan
City	Yokohama
Period	16/06/24 → 21/06/24

Keywords

Array Telescope
LFAST
Optomechanical Design

Access to Document

10.1117/12.3020341

Cite this

Monson, A., Berkson, J., Bender, C., Angel, R., Gray, P., Gilliam, K., Schwab, C., & Foster, W. (2024). LFAST- Large Fiber Array Spectroscopic Telescope: prime focus corrector optics. In H. K. Marshall, J. Spyromilio, & T. Usuda (Eds.), Ground-based and Airborne Telescopes X (pp. 130944O-1-130944O-6). Article 130944O (Proceedings of SPIE; Vol. 13094). SPIE. https://doi.org/10.1117/12.3020341

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title = "LFAST- Large Fiber Array Spectroscopic Telescope: prime focus corrector optics",

abstract = "The Large Fiber Array Spectroscopic Telescope (LFAST) is designed to be a cost-efficient way to provide a large collecting area for spectroscopy by duplicating large numbers of small (0.76m f/3.33) spherical mirror 'unit' telescopes. Each telescope is equipped with a prime focus corrector (PFC) feeding a guider and an optical fiber; and all the fiber optics will feed into a large spectrograph. The design of the PFC is driven by the need to minimize costs while achieving acceptable performance. We are currently constructing a prototype 20-unit system for testing in the second half of 2024. For this 20-unit system we have begun coordinating with industry about scaling for mass fabrication. In this paper we will present status updates from the performance of this early version of the prime focus corrector.",

keywords = "Array Telescope, LFAST, Optomechanical Design",

author = "Andy Monson and Joel Berkson and Chad Bender and Roger Angel and Peter Gray and Kevin Gilliam and Chistian Schwab and Warren Foster",

year = "2024",

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doi = "10.1117/12.3020341",

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editor = "Marshall, {Heather K.} and Jason Spyromilio and Tomonori Usuda",

booktitle = "Ground-based and Airborne Telescopes X",

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note = "Ground-Based and Airborne Telescopes X 2024 ; Conference date: 16-06-2024 Through 21-06-2024",

}

Monson, A, Berkson, J, Bender, C, Angel, R, Gray, P, Gilliam, K, Schwab, C & Foster, W 2024, LFAST- Large Fiber Array Spectroscopic Telescope: prime focus corrector optics. in HK Marshall, J Spyromilio & T Usuda (eds), Ground-based and Airborne Telescopes X., 130944O, Proceedings of SPIE, vol. 13094, SPIE, Bellingham, Washington, pp. 130944O-1-130944O-6, Ground-Based and Airborne Telescopes X 2024, Yokohama, Japan, 16/06/24. https://doi.org/10.1117/12.3020341

LFAST- Large Fiber Array Spectroscopic Telescope: prime focus corrector optics. / Monson, Andy; Berkson, Joel; Bender, Chad et al.
Ground-based and Airborne Telescopes X. ed. / Heather K. Marshall; Jason Spyromilio; Tomonori Usuda. Bellingham, Washington: SPIE, 2024. p. 130944O-1-130944O-6 130944O (Proceedings of SPIE; Vol. 13094).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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AU - Monson, Andy

AU - Berkson, Joel

AU - Bender, Chad

AU - Angel, Roger

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AU - Gilliam, Kevin

AU - Schwab, Chistian

AU - Foster, Warren

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AB - The Large Fiber Array Spectroscopic Telescope (LFAST) is designed to be a cost-efficient way to provide a large collecting area for spectroscopy by duplicating large numbers of small (0.76m f/3.33) spherical mirror 'unit' telescopes. Each telescope is equipped with a prime focus corrector (PFC) feeding a guider and an optical fiber; and all the fiber optics will feed into a large spectrograph. The design of the PFC is driven by the need to minimize costs while achieving acceptable performance. We are currently constructing a prototype 20-unit system for testing in the second half of 2024. For this 20-unit system we have begun coordinating with industry about scaling for mass fabrication. In this paper we will present status updates from the performance of this early version of the prime focus corrector.

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LFAST- Large Fiber Array Spectroscopic Telescope: prime focus corrector optics

Abstract

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Keywords

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