22 July 2016 MEGARA: high-precision alignment system for gluing fibers and microlenses
Author Affiliations +
Abstract
MEGARA is the multi-object medium-resolution spectrograph for the GTC 10m telescope. MEGARA offers two observing modes, the LCB mode, a large central IFU; and a MOS mode composed by 92 robotic positioners carrying 7 fibers minibundles. Microlens are required to fit the GTC f/17 to the f/3 at the fiber entrance, where pupil image is oversized to have a fiber-to-fiber flux variation better than 10%. This tight requirement imposed manufacturing tolerances for the different components and required the development of a gluing station to provide a centering precision better than 5μm. We present the overview of the optical bundles, the gluing station and the final performance obtained during the integration and tests.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Pérez-Calpena, A. Pérez-Calpena, E. Sánchez-Blanco, E. Sánchez-Blanco, I. Martínez-Delgado, I. Martínez-Delgado, M. L. García-Vargas, M. L. García-Vargas, X. Arrillaga, X. Arrillaga, H. Aube, H. Aube, A. Gil de Paz, A. Gil de Paz, M. Maldonado, M. Maldonado, J. Gallego, J. Gallego, J. Iglesias-Páramo, J. Iglesias-Páramo, E. Carrasco, E. Carrasco, F. M. Sánchez-Moreno, F. M. Sánchez-Moreno, J. Vilchez, J. Vilchez, R. Cedazo, R. Cedazo, } "MEGARA: high-precision alignment system for gluing fibers and microlenses", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99125L (22 July 2016); doi: 10.1117/12.2232620; https://doi.org/10.1117/12.2232620
PROCEEDINGS
15 PAGES


SHARE
RELATED CONTENT

MEGARA optical design the new integral field unit and...
Proceedings of SPIE (December 17 2012)
VELOCE’s novel IFU-fitted fibre feed
Proceedings of SPIE (July 05 2018)
Design and performance of an R theta fiber positioner for...
Proceedings of SPIE (September 12 2012)
Near-infrared spectrograph for a large telescope
Proceedings of SPIE (June 05 1995)
MEGARA focal plane subsystems
Proceedings of SPIE (September 23 2012)

Back to Top