Enhanced Nonlinear Susceptibility in TeO2–BaO–SrO–Nb2O5 Tellurite Glasses

概要

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We added systematically WO3 and P2O5 in a TeO2–BaO–SrO–Nb2O5 (TBSN) glass system, which are proposed for ultra-broadband Raman amplifiers. The response in nonlinear indices to this addition was studied and reported herewith. The third-order optical susceptibility ($\chi^{3}$) measured using Maker fringe analysis increased with an increase in WO3 content and decreased with an increase in P2O5 content. When these components were added simultaneously, we observed that their $\chi^{3}$ reaches a value similar to that of pure TeO2 glass. In view of their higher Raman gain coefficient and amplification bandwidth and with the present result of higher nonlinear indices, these glasses are likely to be suitable for photonics applications.
2007-07-25