【摘要】 用激光加热基座（LHPG）法控制了YAG单晶光纤。用电子能量色散谱（EDS）测定晶纤中Nd³⁺离子浓度分布得知:离子沿径向分布不均匀,而沿纵向分布基本均匀;光纤的直径愈细,径向浓度分布更不均匀。对实验结果作了理论解释,估算了多次控制的光纤中Nd³⁺离子的浓度。更多还原

【Abstract】 In the experiment, single crystal fiber of Nd:YAG was made by the technique of LHPG（Laser Heated Pedestal Growth）and the Nd²⁺ion distribution was measured by EDS（Energy Dispersive Spectrometer）. It shows that the longitudinal distribution of Nd³⁺ ion is homogeneous while the radial distribution is inhomogeneous, and furthermore, the thinner the fiber is, the more inhomogeneous the radial is. The theoretical dicussion was put out, not only to explain the experimental results, but to estimate the concentration of Nd³⁺ ion in the fiber which is made by mutiple-pulling from source rod also.更多还原