Rare Earth Doped Fibres
Rare earth doped fibres starts with the preform fabrication. In Modified Chemical Vapour Deposition technique, select chemicals are fused and deposited layer by layer onto a glass tube that rotates on a lathe after the chemicals are subject to fire. The pictures was taken in the Optoelectronics Research Centre at the University of Southampton with a Huawei P9 mobile with no filter.
—Norberto Ramirez, University of Southampton