Waveguide spectrographs for astronomy?

Frederick G. Watson*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

6 Citations (Scopus)


It is suggested that multi-mode slab waveguide spectrographs, developed for wavelength division multiplexing (WDM) in optical communications, might have a role in astronomical instrumentation. A stack of such waveguide devices could form an effective instrument for multi-object spectroscopy. The performance of some existing devices is described, and their applicability to astronomy investigated. It is found to be limited. However, it is shown that only a modest improvement in resolution (by a factor of 2 - 4), together with a realization of the potentially very high optical efficiency, could yield an astronomically-useful device. The problems anticipated in developing such an instrument are outlined.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsArne Ardeberg
Place of PublicationBellingham, WA
Number of pages6
ISBN (Print)0819422681
Publication statusPublished - 1997
Externally publishedYes
EventOptical Telescopes of Today and Tomorrow - Landskrona/Hven, Swed
Duration: 29 May 199629 May 1996


OtherOptical Telescopes of Today and Tomorrow
CityLandskrona/Hven, Swed


Dive into the research topics of 'Waveguide spectrographs for astronomy?'. Together they form a unique fingerprint.

Cite this