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15 August 1984 A Study Of Core Concentricity Error Measurement And The Implications For Monomode Systems
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Proceedings Volume 0468, Fibre Optics '84; (1984)
Event: Sira/Fibre Optics '84, 1984, London, United Kingdom
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.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G Warnes and C. A Millar "A Study Of Core Concentricity Error Measurement And The Implications For Monomode Systems", Proc. SPIE 0468, Fibre Optics '84, (15 August 1984);

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