IAA authors:
Iglesias-Páramo, J.;Vilchez, J.
Authors:
Pérez-Calpena, A.;Sánchez-Blanco, E.;Martínez-Delgado, I.;García-Vargas, M. L.;Arrillaga, X.;Aube, H.;Gil de Paz, A.;Maldonado, M.;Gallego, J.;Iglesias-Páramo, J.;Carrasco, E.;Sánchez-Moreno, F. M.;Vilchez, J.;Cedazo, R.
Journal:
Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Abstract:
<p>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.</p>
URL:
https://ui.adsabs.harvard.edu/#abs/2016SPIE.9912E..5LP/abstract