TMT Laser Guide Star Facility preliminary design

M. Trubey; C. Boyer; B. Delabre; B. Irarrazaval; J. Miles; K. Vogiatzis; L. Wang; C. Jiang

doi:10.1117/12.2630542

29 August 2022 TMT Laser Guide Star Facility preliminary design

M. Trubey, C. Boyer, B. Delabre, B. Irarrazaval, J. Miles, K. Vogiatzis, L. Wang, C. Jiang

Proceedings Volume 12185, Adaptive Optics Systems VIII; 121857H (2022) https://doi.org/10.1117/12.2630542
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The TMT Laser Guide Star Facility (LGSF) system is responsible for generating the artificial guide stars in the mesospheric sodium layer with the brightness, beam quality and asterism geometries required by both the first light AO system and future AO instruments. It includes the sodium lasers mounted on the elevation structure, the beam transfer optics to transport the beams up to the telescope top end, and the formatting and launching optics to project the required laser guide star asterism to the sky using a center launch telescope. In this paper, we will present the LGSF preliminary design including the design trade-offs, the optical, mechanical, electronics and software design, as well as the modeling activities.

Citation Download Citation

M. Trubey, C. Boyer, B. Delabre, B. Irarrazaval, J. Miles, K. Vogiatzis, L. Wang, and C. Jiang "TMT Laser Guide Star Facility preliminary design", Proc. SPIE 12185, Adaptive Optics Systems VIII, 121857H (29 August 2022); https://doi.org/10.1117/12.2630542

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