Supercontinuum generation in microstructured tellurite glass fiber

In this paper we report on design, manufacturing and characterization of microstructured optical fibers made of highly non-linear tellurite glasses and devoted to supercontinuum generation. The tellurite glass labeled TWPN/I/6 is synthesized in oxide system of 65TeO(2)-28WO(3)-5Na(2)O-2Nb(2)O(5) [mol%]. The full characteristics of optical, thermal and mechanical properties of this glass has been performed. Due to a very high resistance for devitrification during multiple thermal processing the glass has been successfully used for PCF manufacturing by the stack-and-draw technique. The manufactured fibers are characterized by the zero dispersion wavelength (ZDW) ranged from 1630 up to 2100nm. Spectrum broadening in the range of 830-1100nm is observed for pump with 100 fs pulses at wavelength 919nm and average power of 615mW.