Abstract
The method of manufacturing active silica fibers by sintering nanoporous glasses has a number of advantages over methods of vapor deposition (MCVD, OVD). The features of obtaining nanoporous glasses by the method of two-phase separation of alkali borosilicate glasses are described. Examples of doping sintered nanoporous glasses with rare earth elements are given and the main results on the production of active fibers with a core are considered. It has been shown that such fibers are similar to their MCVD analogues in terms of properties. At the same time, it is possible to impregnate nanoporous glass with large (more than 1 at.%) concentration of dopants without revealing clustering effects and without noticeable fluctuations in the refractive index of the fiber core glass.
Published Version
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