Technique for reducing spatial and wavelength variations of launch spot in fibre attenuation measurements |
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| Authors: | Sharma A.B. L?hteenoja M. Halme S.J. Hubach E.J.R. |
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| Affiliation: | Helsinki University of Technology, Electrical Engineering Department, Communications Laboratory, Espoo, Finland; |
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| Abstract: | ![]()
A launching technique based on the use of a large step-index rod with a ground end face is described. Experimental results indicate a significant reduction in spatial and wavelength variations. Based on theoretical considerations, the resultant attenuation error in interlaboratory experiments is estimated to be about ± 0.03 dB. |
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