世界上很多学者都在进行对可用作光学波导管的掺稀土材料的研究。其中,L.E.Bausa等人进行的有关实验表明,掺铒的氟化钙层显示出可用作激光波导管的良好特性。其它稀土离子如Nd~(3+)也有望能用于这一领域,但Er(3+)离子在1.5μm处发射的波长 Many scholars in the world are studying the rare earth-doped materials that can be used as optical waveguides. Among them, experiments conducted by L. E. Bausa et al. Show that the erbium-doped calcium fluoride layer shows good properties as a laser waveguide. Other rare earth ions such as Nd ~ (3+) are also expected to be used in this field, but Er (3+) ions emit at a wavelength of 1.5 m