DOPED OPTICAL FIBER

摘要

Optical fibers at least the core (11) of which contains at least 80 weight percent silica doped with nonglass forming refractory oxides, such as alumina and zirconia. Devitrification is retarded by adding an additional glass forming component, such as P2O5, and by rapidly quenching the heated glass. Aluminium and zirconium-containing precursor vapors are formed by passing halide gas over heated aluminium of zirconium wire.