GRAVITY: the Calibration Unit

被引：7

作者：

Blind, N. ^{[1
]}

Eisenhauer, F. ^{[1
]}

Haug, M. ^{[1
]}

Gillesse, S. ^{[1
]}

Lippa, M. ^{[1
]}

Burtscher, L. ^{[1
]}

Hans, O. ^{[1
]}

Haussmann, F. ^{[1
]}

Huber, S. ^{[1
]}

Janssen, A. ^{[1
]}

Kellner, S. ^{[1
]}

Kok, Y. ^{[1
]}

Ott, T. ^{[1
]}

Pfuhl, O. ^{[1
]}

Sturm, E. ^{[1
]}

Weber, J. ^{[1
]}

Wieprecht, E. ^{[1
]}

Amorim, A. ^{[2
]}

Brandner, W. ^{[3
]}

Perrin, G. ^{[4
]}

Perraut, K. ^{[5
]}

Straubmeier, C. ^{[6
]}

机构：

[1] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany

[2] Univ Lisbon, Fac Ciencias, SIM, P-1749016 Lisbon, Portugal

[3] Max Planck Inst Astron, D-69117 Heidelberg, Germany

[4] Observ Paris, LESIA, F-92195 Meudon, France

[5] UJF Grenoble 1, IPAG, CNRS INSU, UMR 5274, Grenoble, France

[6] Univ Cologne, Inst Phys 1, D-50937 Cologne, Germany

来源：

OPTICAL AND INFRARED INTERFEROMETRY IV | 2014年 / 9146卷

关键词：

Optical Interferometry; VLTI;

D O I：

10.1117/12.2055542

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present in this paper the design and characterisation of a new sub-system of the VLTI 2nd generation instrument GRAVITY: the Calibration Unit. The Calibration Unit provides all functions to test and calibrate the beam combiner instrument: it creates two artificial stars on four beams, and dispose of four delay lines with an internal metrology. It also includes artificial stars for the tip-tilt and pupil guiding systems, as well as four metrology pick-up diodes, for tests and calibration of the corresponding sub-systems. The calibration unit also hosts the reference targets to align GRAVITY to the VLTI, and the safety shutters to avoid the metrology light to propagate in the VLTI-lab. We present the results of the characterisation and validtion of these differrent sub-units.

引用

页数：12

共 6 条

[1]

AMORIM A, 2010, P SPIE, V7734

[2]

Eisenhauer Frank, 2011, Messenger, P16

[3]

GILLESSEN S, 2010, P SPIE, V7734

[4]

Pfuhl O., 2012, P SPIE, V8445

[5] Polarization effects in stellar interferometry [J].

RousseletPerraut, K ;

Vakili, F ;

Mourard, D .

OPTICAL ENGINEERING, 1996, 35 (10) :2943-2955

[6]

Sahlmann J., 2007, THESIS

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