mode distribution meaning in English
波型分布
Examples
- The theoretical model describing the output properties of double - cladding mof laser has been builded according to the mof ’ s extraordinary mode distribution
光纤后端面直接输出时获得了最大11 . 6w的输出功率,斜率效率达到了86 %以上。 - Based on the semi - vector wave equation under cylindrical coordinate system , the mode distribution and complex propagation constant in bent waveguides were computed by a finite difference method with perfectly matched layer ( pml ) boundary condition
摘要以柱坐标下的半矢量波动方程为基础，采用基于完美匹配层( pml )边界条件的有限差分方法，对弯曲波导进行模式求解，进而得到波导弯曲引起的辐射损耗。 - In this work , based on the threshold condition of the fiber grating external cavity semiconductor laser ( fgesl ) which the phase of the fiber grating has been included , the effect of the temperature variation and the fg external cavity length on the lasing wavelength of the fgesl has been investigated theoretically . in addition , we have used the phase condition of fgesl to get the longitudinal mode distribution of fgesl , then the influence of the injected current on the output characteristics of fgesl has been studied
基于此，本文中利用阳实际的反射相位分布，计及半导体激光器( ld ) 、外腔及光纤光栅( fg )三者的共同作用，根据fgesl满足的闽值条件，从理论上研究了温度及外腔长度的变化对fgesl激射波长的影响;根据fgesl中纵模所满足的相位条件得到其纵模分布后，利用fgesl满足的多模速率方程，研究了ld的注入电流对fgesl输出特性的影响。 - In present studies of fgesl , the theoretical models usually neglected the contribution of external cavity and fiber grating to the phase condition , and considered the mode distribution of fgesl is in accordance with the mode distribution of ld without fg external cavity . obviously , such process method deviates from the physical facts
在已有的对fgesl的研究中，所采用的理论模型均忽略了光纤光栅( fg )的反射相位及光线在外腔中的往返相移对模式分布的影响，认为fgesl的模式分布跟没有fg中文摘要外腔时ld的模式一致，这种处理方式显然违背了物理事实。 - In this dissertation , the varied characteristics of soi rib waveguide were investigated , and the calculated results as well as simulated plots in theory were presented . it was the first time that a 3d overlap integral method was used to calculate the transition loss between the rib waveguides and the slab waveguides , in which the effect of the mode distribution in rib waveguides on the coupling efficiency was taken into account
针对上述问题，本论文对soi波导的各种特性进行探讨并给出了详细的计算结果，首次用三维功率交迭积分法计算了soi波导器件中波导过渡区的损耗，这种方法考虑了脊形波导模式分布对过渡区耦合效率的影响。