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Proceedings Paper

Integration and testing of the WYFFOS fiber-fed spectrograph for the William Herschel Telescope
Author(s): Susan P. Worswick; David W. Gellatly; Nicholas K. Ferneyhough; David L. King; Andrew J. Weise; Richard G. Bingham; Anthony Patrick Oates
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Paper Abstract

The prime focus of the William Herschel telescope (WHT) provides a field of one degree which is to be used for fiber spectroscopy. The WYFFOS spectrograph, based on a Baranne white pupil design, is located on one of the Nasmyth platforms of the telescope and is fed from prime focus by 126, 26 meter long fibers. The system is designed for a wavelength range of 350 nm to 1.1 microns using both transmission and reflection gratings. This paper describes the integration and testing of the spectrograph undertaken in the laboratory. The image quality and spectral resolving power have been measured. The scattered light and amount of cross-talk between adjacent fibers has been assessed. The provision of calibration illumination and facilities for back illumination of the fibers, a requirement needed by the fiber positioner, is discussed.

Paper Details

Date Published: 14 June 1995
PDF: 10 pages
Proc. SPIE 2476, Fiber Optics in Astronomical Applications, (14 June 1995); doi: 10.1117/12.211838
Show Author Affiliations
Susan P. Worswick, Royal Greenwich Observatory (United Kingdom)
David W. Gellatly, Royal Greenwich Observatory (United Kingdom)
Nicholas K. Ferneyhough, Royal Greenwich Observatory (United Kingdom)
David L. King, Royal Greenwich Observatory (United Kingdom)
Andrew J. Weise, Royal Greenwich Observatory (United Kingdom)
Richard G. Bingham, Royal Greenwich Observatory (United Kingdom)
Anthony Patrick Oates, Royal Greenwich Observatory (United Kingdom)

Published in SPIE Proceedings Vol. 2476:
Fiber Optics in Astronomical Applications
Samuel Charles Barden, Editor(s)

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