What is the normal attenuation level for multimode fiber fusion splicing
For multimode fiber, the loss is about 3 dB per km for 850 nm sources, 1 dB per km for 1300 nm. Typical splice loss values (the measure of loss in optical power across the splice point) are usually lower for fusion splices (typically less than 0. It is important to ensure that splice loss is kept within the specified standards to maintain optimal performance and reliability of the optical.
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