高温熔融法制备了69．5B₂O₃－20Li₂O－(10－χ)CaO－χPbO－0．5Nd₂O₃(χ=1，3，5，7，mol%)和68．5Li₂O－(29－φ)CaO－φAl₂O₃－2La₂O₃－0．5Nd₂O₃(φ=3，7，10，15，mol%)玻璃，测量了玻璃样品的吸收和发射光谱(800nm激光二极管激发)，从吸收光谱出发，应用Judd－Ofelt理论获得了Nd³⁺光学跃起的强度参数。根据强度参数和发射光谱，计算了Nd³⁺离子⁴F_3／2→⁴I_11／2跃迁的荧光发射截面σ_eo结果显示，在B₂O₃－Li₂O－CaO－PbO－Nd₂O₃系统中随着CaO的减少和PbO的增加，Nd³⁺离子的强度参数Ω₂增大，表明样品的对称性降低；强度参数Ω₆也增大，说明玻璃样品中Nd－O键的共价性和键强降低；同时，Nd³⁺离子⁴F_3／2→⁴I_11／2跃迁的荧光发射截面σ_e的大小和荧光强度都减小。在Li₂O－CaO－Al₂O₃－La₂O₃－Nd₂O₃系统中，随着CaO的减少和Al₂O₃的增加，Nd³⁺离子的强度参数Ω₂减小，说明样品的对称性增加；强度参数Ω₆减小，说明玻璃样品中Nd－O键的共价性和键强增强；同时，Nd³⁺离子⁴F_3／2→⁴I_11／2跃迁的荧光发射截面的大小和荧光强度也都减小。

The 69.5B₂O₃-20Li₂O-(10-χ) CaO-χPbO-0.5Nd₂O₃ (χ=1,3,5,7.mol%) and 68.5Li₂O-(29-φ) CaO-φAl₂O₃-2La₂O₃-0.5Nd₂O₃ (φ=3,7,10,15.mol%) glasses were prepared by conventional melting method with the measurements of their absorption and emission spectra (800nm LD excitation). The Judd-Ofelt parameters were calculated from their absorption spectra. The stimulated emission cross-sections between the metastable ⁴F_3/2 and terminal ⁴I_11/2 of Nd³⁺ ions were obtained from their emission spectra with the help of J-O parameters. It was obtained from the results that,concomitant with the decrease of CaO and increase of PbO contents in glass system: B₂O₃-Li₂O-CaO-PbO-Nd₂O₃ were increase of the intensity parameters Ω₂ and Ω₆,which indicated that the symmetry of the glass host become lower the band of Nd and O atoms became stronger and the covalency of Nd and O atoms increased,the emission intensity and the emission cross-sections decreased as well;Besides,along with the decrease of CaO and increase of Al₂O₃ contents in glass system: Li₂O-CaO-Al₂O₃-La₂O₃-Nd₂O₃,were the increase of the intensity parametersΩ₂ and Ω₆,which indicated that the symmetry of the glass host become higher the band of Nd and O atoms became weaker and the covalency of Nd and O atoms decreased,the emission intensity and the emission cross-sections decreased as well.