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用质子交换法制备了Ｎｄ：ＭｇＯ：ＬｉＮｂＯ３波导。通过测量平面波导的二次离子质谱，得到了波导的原子组分分布，并测量了Ｎｄ：ＭｇＯ：ＬｉＮｂＯ３晶体的吸收谱线，最后利用端面耦合，分别得到了条波导内和衬底内激光诱导的荧光谱线。
The Nd: MgO: LiNbO3 waveguide was prepared by proton exchange method. By measuring the secondary ion mass spectrum of the planar waveguide, the atomic distribution of the waveguide was obtained and the absorption spectra of the Nd: MgO: LiNbO3 crystal were measured. Finally, the end-to-end coupling was used to obtain the laser induced Of the fluorescence line.