论文信息 - JouFLU: an upgraded FLUOR beam combiner at the CHARA Array

JouFLU: an upgraded FLUOR beam combiner at the CHARA Array

FLUOR, which has been operational on CHARA since 2002, is an infrared fiber beam combiner. The telescope array will soon be fitted with an adaptive optics system, which will enhance the interferometer performance. In this framework, FLUOR has been entirely redeveloped and will be able to measure visibilities with higher accuracy and better sensitivity. The technical upgrades consist of improving some existing systems and developing new features. The bench, which is now remotely operable, primarily offers spectral dispersion (long fringes scanning), a more sensitive camera and a Fourier Transform Spectrometer mode. This paper presents the detailed opto-mechanical design of JouFLU (FLUOR rejuvenation), and the current instrument status.

[1] Wesley A. Traub,et al. FLUOR fibered instrument at the IOTA interferometer , 1998, Astronomical Telescopes and Instrumentation.

[2] S. T. Ridgway,et al. First Results from the CHARA Array. II. A Description of the Instrument , 2005 .

[3] Vincent Coudé du Foresto,et al. CHARA/FLUOR: updates and performance , 2006, SPIE Astronomical Telescopes + Instrumentation.

[4] Romain G. Petrov,et al. VEGA: Visible spEctroGraph and polArimeter for the CHARA array: principle and performance , 2009 .

[5] Rafael Millan-Gabet,et al. CHARA Michigan phase-tracker (CHAMP): a preliminary performance report , 2008, Astronomical Telescopes + Instrumentation.

[6] Stephen T. Ridgway,et al. FLUOR fibered beam combiner at the CHARA array , 2003, SPIE Astronomical Telescopes + Instrumentation.

[7] A. Marcotto,et al. Current results of the PERSEE testbench: the cophasing control and the polychromatic null rate , 2011, Optical Engineering + Applications.