Rare-earth-doped optical fiber with optimized background loss and preparation method of rare-earth-doped optical fiber

• Main Authors: WANG HENG, ZHONG LI, LEI GAOQING, CAO BEIBEI, YUAN BIAO, WANG SONG, ZHENG WEI
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DEVICES USING STIMULATED EMISSION; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention provides a back-to-bottom loss optimized rare earth doped optical fiber, which comprises a core layer, a transition cladding and a pure silicon cladding which are sequentially arranged from inside to outside, and is characterized in that the core layer and the transition cladding are b...