Translator Disclaimer
12 September 2012 Optimizing the transmission of the GRAVITY/VLTI near-infrared wavefront sensor
Author Affiliations +
Abstract
The GRAVITY instrument’s adaptive optics system consists of a novel cryogenic near-infrared wavefront sensor to be installed at each of the four unit telescopes of the VLT. Feeding the GRAVITY wavefront sensor with light in the 1.4 - 2.4 micrometer band, while suppressing laser light originating from the GRAVITY metrology system, custom-built optical components are required. Here we report on optical and near-infrared testing of the silicon entrance windows of the wavefront sensor cryostat and other reflective optics used in the warm feeding optics.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pengqian Yang, Stefan Hippler, Casey P. Deen, Armin Böhm, Wolfgang Brandner, Thomas Henning, Armin Huber, Sarah Kendrew, Rainer Lenzen, Ralf-Rainer Rohloff, Constanza Araujo-Hauck, Oliver Pfuhl, Yann Clénet, and Jianqiang Zhu "Optimizing the transmission of the GRAVITY/VLTI near-infrared wavefront sensor", Proc. SPIE 8445, Optical and Infrared Interferometry III, 844531 (12 September 2012); doi: 10.1117/12.925920; https://doi.org/10.1117/12.925920
PROCEEDINGS
7 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

A novel means of measuring non common path errors in...
Proceedings of SPIE (June 30 2014)
Interferometry following adaptive optics
Proceedings of SPIE (October 19 2004)
Focal plane masks in adaptive optics systems
Proceedings of SPIE (September 26 1999)
In-process metrology for large astronomical mirrors
Proceedings of SPIE (October 31 1990)
Interferometry At The University Of Arizona
Proceedings of SPIE (March 22 1987)

Back to Top