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Proceedings Paper

A Study Of Core Concentricity Error Measurement And The Implications For Monomode Systems
Author(s): G Warnes; C. A Millar
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Paper Abstract

Monomode(optical fibres are now of central importance to the British Telecommunications trunk network&apos(l). Measurements aimed at characterizing monomode fibres after manufacture, during cabling or prior to insertion in a route are still in their infancy, and a subject of much debate in the literature and in standards authorities. Broadly speaking, two classes of measurement are required; optical properties (spot size, cut off wavelength, dispersion, refractive index profile) and geometrical properties (core concentricity error, core and cladding circularity, and cladding diameter). The first measurement set have been tackled using optical methods specific to monomode fibres and is not the concern of this work. The geometrical properties may be measured using developing metrology, the capabilities of existing and emerging techniques being reported here. Because Core Concentricity Error (CCE) is the most important and, ironically, the most difficult parameter to assess, this paper will concentrate on this aspect.

Paper Details

Date Published: 15 August 1984
PDF: 7 pages
Proc. SPIE 0468, Fibre Optics '84, (15 August 1984); doi: 10.1117/12.941657
Show Author Affiliations
G Warnes, British Telecom Research Laboratories (United Kingdom)
C. A Millar, British Telecom Research Laboratories (United Kingdom)

Published in SPIE Proceedings Vol. 0468:
Fibre Optics '84

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