Waveguide spectrographs for astronomy?

Details Waveguide spectrographs for astronomy? Waveguide spectrographs for astronomy?

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997spie.2871.1373w&link_type=abstract

Proc. SPIE Vol. 2871, p. 1373-1378, Optical Telescopes of Today and Tomorrow, Arne L. Ardeberg; Ed.

Computer Science

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1

Scientific paper

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.

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