Final design of the GTC laser guide star wavefront sensor

R. Simoes; M. Puga; M. Reyes García-Talavera; J. Patrón; O. Tubío; I. Montilla; F. Tenegi; J. Sánchez-Capuchino; Víctor J. S. Béjar

doi:10.1117/12.2629289

29 August 2022 Final design of the GTC laser guide star wavefront sensor

R. Simoes, M. Puga, M. Reyes García-Talavera, J. Patrón, O. Tubío, I. Montilla, F. Tenegi, J. Sánchez-Capuchino, Víctor J. S. Béjar

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 1218543 (2022) https://doi.org/10.1117/12.2629289
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The Laser Guide Star Facility (LGSF) of GTC will generate a laser guide star (LGS) in the high atmosphere for the GTC Adaptive Optics System (GTCAO) to measure and correct the effect of the atmospheric turbulence. The GTCAO LGS Wavefront Sensor (LWS) will be based on a Shack Hartmann WFS and placed on the GTCAO optical bench, where the Natural Guide Star (NGS) Wavefront Sensor is already installed. The science dichroic splits the light beam so that the visible range (0.47-0.9μm) is reflected to the NGS WFS, and the infrared range 0.9-2.5μm is transmitted to the science instrument. A new second dichroic (LWS DC) will be installed in the visible path, to reflect 589nm (FWHM 12nm) towards the LWS, and to transmit the rest of the visible light to the NGS WFS. In addition, the system will count on an LGS calibration source. The proceeding describes the opto-mechanical design of the LWS System, covering its different subsystems: LWS Dichroic, LWS Sensor and LWS Calibration Unit.

Citation Download Citation

R. Simoes, M. Puga, M. Reyes García-Talavera, J. Patrón, O. Tubío, I. Montilla, F. Tenegi, J. Sánchez-Capuchino, and Víctor J. S. Béjar "Final design of the GTC laser guide star wavefront sensor", Proc. SPIE 12185, Adaptive Optics Systems VIII, 1218543 (29 August 2022); https://doi.org/10.1117/12.2629289

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available