Preform fabrication and drawing of KNbO3 modified tellurite glass fibers

Chemically Etched Sharpened Tip of Transparent Crystallized Glass Fibers with Nonlinear Optical Ba2TiSi2O8 Nanocrystals

“…For instance, Iwafuchi et al 8 have reported nanocrystallized glass fibers with second harmonic generations SHGs in the K 2 O-Nb 2 O 5 -TeO 2 system. Prasad et al 9 have tried to fabricate TeO 2 -based glass fibers containing nonlinear optical KNbO 3 crystals. It should be also pointed out that some studies on transparent crystallized glass fibers with transition metal doped nanocrystals, oxyfluoride nanocrystals, and sharpened tips have been reported.…”

Ultra-dry oxygen atmosphere to protect tellurite glass fiber from surface crystallization

“…The TZN bulk glasses for fiber fabrication were prepared by melting and quenching techniques described elsewhere [4,5]. taken.…”

“…Recently, by using TZN glass as fiber cladding and KNbO 3 -modified TZN glass as fiber core, TZN-based glass preforms and fibers have been successfully fabricated by our group using both suction-casting and rod-in-tube methods [4,5]. However, these TZN glass fibers were found to suffer from several drawbacks, such as bubbles, striations, large transmission loss and significant surface crystallization during fiber drawing, which have in fact limited the development of tellurite glass fibers for a long time.…”

Optical characteristics of nanocrystallized glass fiber with second-order optical nonlinearity

“…), 1),2) have been made for developing active fibertype components, it is difficult to form fibers that maintain the ordered structure of the crystalline phase in a glass matrix. Although a tellurite glass fiber containing small crystals of nonlinear KNbO3 was fabricated for the same purpose, 3) the homogeneity of the refractive index in the core section was low due to segregation of the Te component, which caused light scattering.…”