Y Tamura, H Sakuma, K Morita… - Journal of Lightwave …, 2018 - ieeexplore.ieee.org
We achieved the lowest-ever transmission losses of 0.1419 dB/km at 1560 nm wavelength
and 0.1424 dB/km at 1550 nm in a Ge-free silica-core optical fiber. It was an improvement by …