0.27-dB/km attenuation achieved by MSP preform process [opticalfibers] |
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| Authors: | Dorn R Baumgartner A Goth A Gutu-Nelle A Koppenborg J Rehm W Schneider R Schneider S von Wirth J Weber D |
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| Affiliation: | Stand. Elektrik Lorenz AG, Stuttgart; |
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| Abstract: | 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 |
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