Optical matching for fiber optic spectroscopy

J. M. Hill, J. R. Angel, E. H. Richardson

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Single silica fibers of the type developed for communications are useful in the design of astronomical spectrographs. They can be used to couple light from many objects over a wide field to a single spectrograph, or to eliminate wavelength errors from image motion and gravitational flexure. For many applications it will be advantageous to use small lenses to make the most efficient coupling into and out of a fiber. If the telescope pupil is imaged on the fiber core, an efficient coupling can be made that preserves image size over a certain range. This method is demonstrated by a laboratory test using sapphire spheres as coupling lenses.

Original languageEnglish (US)
Pages (from-to)85-92
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume445
DOIs
StatePublished - Jan 9 1984

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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