Optimal non-circular fiber geometries for image scrambling in high-resolution spectrographs

Julian Stürmer, Christian Schwab, Stephan Grimm, André Kalide, Adam P. Sutherland, Andreas Seifahrt, Kay Schuster, Jacob L. Bean, Andreas Quirrenbach

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

4 Citations (Scopus)

Abstract

Optical fibers are a key component for high-resolution spectrographs to attain high precision in radial velocity measurements. We present a custom fiber with a novel core geometry - a 'D'-shape. From a theoretical standpoint, such a fiber should provide superior scrambling and modal noise mitigation, since unlike the commonly used circular and polygonal fiber cross sections, it shows chaotic scrambling. We report on the fabrication process of a test fiber and compare the optical properties, scrambling performance, and modal noise behaviour of the D-fiber with those of common polygonal fibers.

Original languageEnglish
Title of host publicationAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
EditorsRaman Navarro, James H. Burge
Place of PublicationBellingham, Washington
PublisherSPIE
Pages1-7
Number of pages7
ISBN (Electronic)9781510602045
ISBN (Print)9781510602038
DOIs
Publication statusPublished - 2016
EventAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation II - Edinburgh, United Kingdom
Duration: 26 Jun 20161 Jul 2016

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume9912
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
CountryUnited Kingdom
CityEdinburgh
Period26/06/161/07/16

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Keywords

  • Dynamical billiards
  • Modal noise
  • Optical fibers
  • Radial velocity
  • Scrambling

Cite this

Stürmer, J., Schwab, C., Grimm, S., Kalide, A., Sutherland, A. P., Seifahrt, A., ... Quirrenbach, A. (2016). Optimal non-circular fiber geometries for image scrambling in high-resolution spectrographs. In R. Navarro, & J. H. Burge (Eds.), Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II (pp. 1-7). [99121T] (Proceedings of SPIE; Vol. 9912). Bellingham, Washington: SPIE. https://doi.org/10.1117/12.2234552