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Fibre Optic Development at the AAO

Published online by Cambridge University Press:  25 April 2016

P. M. Gray ,
M. M. Phillips ,
A. J. Turtle  and
R. Ellis
P. M. Gray
Affiliation:
Anglo-Australian Observatory
M. M. Phillips
Affiliation:
Cerro Tololo Interamerican Observatory
A. J. Turtle
Affiliation:
University of Sydney
R. Ellis
Affiliation:
Durham University
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Extract

Work on the development and use of optical fibres as light guides in astronomical spectroscopy has been underway at the AAO for over a year now. The fibres used are step-index polymer-clad silica with a core size of 200 microns giving an aperture size of 1.3 arcsec at the AAT f/8 focus. They are optimised for data transmission with losses below 5dB/km at a wavelength of 800 nm. The blue transmission is somewhat lower, typically 500dB/km at 300nm and 90dB/km at 400nm but over the short 2m length used these attenuations give transmissions of 79% and 96% respectively.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 4 , Issue 4 , 1982 , pp. 477 - 479
Copyright
Copyright © Astronomical Society of Australia 1982

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