MEGARA. High-precision alignment system for gluing fibers and microlenses

Downloads

Downloads per month over past year

62891

Impacto

Downloads

Downloads per month over past year

Gil de Paz, Armando (2016) MEGARA. High-precision alignment system for gluing fibers and microlenses. In Advacnes in optical and mechanical technologies for telescopes and instrumentation II. Conference Proceedings, 9912 . SPIE-Iint. Soc. Optical Engineering. ISBN 978-1-5106-0203-8

[thumbnail of gildepaz183libre.pdf]
Preview
PDF
2MB

Official URL: http://dx.doi.org/10.1117/12.2232620




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.


Item Type:Book Section
Additional Information:

© 2016 SPIE. Artículo firmado por 14 autores & MEGARA Team. Conference on Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II (2016. Edimburgh/UK).

Uncontrolled Keywords:Megara; Integral field unit (IFU); Multi-object spectrograph (MOS); Fiber bundles; Fiber and microlens gluing station; High precision alignment; Fiber-to-fiber flux homogneneity; GTC
Subjects:Sciences > Physics > Astrophysics
Sciences > Physics > Astronomy
ID Code:62891
Deposited On:30 Oct 2020 11:18
Last Modified:30 Oct 2020 11:18

Origin of downloads

Repository Staff Only: item control page