[摘要]：In this paper, the optical dispersion properties and the Raman gain of sodium phosphate glasses containing niobium oxide at increasing concentrations have been systematically investigated, with the aim of establishing a potential enhancement of the Raman gain and its bandwidth with respect to silica. A broadening of the bandwidth and a higher peak Raman gain (approximately 17 times) than in silica glass have been observed at high niobium oxide molar content. Our findings point out that sodium-niobium-phosphate glasses could be utilized for the realization of Raman amplifiers. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3525162]
