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0.27-dB/km attenuation achieved by MSP preform process [optical fibers]

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10 Author(s)
R. Dorn ; Stand. Elektrik Lorenz AG, Stuttgart, Germany ; A. Baumgartner ; A. Goth ; A. Gutu-Nelle
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Mechanically shaped preforms (MSP) have been demonstrated to combine economic non-CVD (chemical vapor deposition) processing and low loss, with a published value of 0.63 dB/km and a size of 30 fkm/preform. Improved processing is proposed which results in a minimum loss of 0.27 dB/km at 1550 nm. Preforms capable of yielding 150 fkm have been produced. Reboiling during preform stretching and fiber pulling is identified as the last remaining problem of the process

Published in:

Journal of Lightwave Technology  (Volume:9 ,  Issue: 6 )