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Hybrid technology for large SM fiber performs

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4 Author(s)
Geittner, P. ; Phillips GmbH Forschungslab. Aachen, West Germany ; Hagemann, H.-J. ; Lydtin, H. ; Warnier, J.

A hybrid technology for the preparation of standard and dispersion-modified single-mode (SM) fibers is discussed. Only the most important central region of the fibers is prepared by plasma chemical vapor deposition (PCVD) techniques. The optical cladding is as a high-purity jacket tube using the normal rod-in-tube obtained from low-cost shaping and sintering technologies. Due to in situ plasma etching, no disturbance is caused by the interfaces. Low attenuation is achieved with less than 5% of the fiber volume consisting of PCVD core region. The hybrid technology allows economic mass production of preforms containing more than 300 km of fiber

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Lightwave Technology, Journal of  (Volume:6 ,  Issue: 10 )