y-branched structure造句

• The thesis gives a simulation result of s - shape y - branch structure with numerical computation software and it also meets the demand
  本文结合已有的软件对s弯曲结构进行了分析模拟，也得到了达到性能指标的分析结果。
• In developing the planar lightwave circuits , the coupling loss between a waveguide with a high refractive index difference and a single mode fiber is considered . a novel spot - size converter based on a y - branch structure is proposed and numerical simulation results indicate that it can reduce the coupling loss effectively with low polarization dependent loss and good fabrication tolerance
  在平面波导光器件研制中，提出了高折射率差二氧化硅波导与光纤的新型低损耗连接，与现有波导单侧变窄的结构相比较，有效的降低了连接损耗，同时具有偏振相关损耗低，工艺容差性好的优点。
• Applying an exact modal propagation analysis method and self - imaging theory , i analyzed the principle of mmi coupler . then , the self - imaging effect in graded - index waveguide has been analyzed and simulated using three - dimensional bpm . considering normal technology error , a low loss y - branch structure ( symmetric or asymmetric ) with a multimode waveguide transition section is introduced and designed
  在设计y分支波导结构时，考虑常规工艺误差的影响，引入多模波导作为y分支波导结构的过渡区，利用参数空间搜索法来设计结构参数，实现低损耗的y分支结构。
• The numerical and experimental results of this y - branch structure indicate that the proposed y - branch structure , without extra fabrication technologies , has a lower excess loss as compared with the conventional ones . optimal designs of the structural parameters for the multimode interference coupler are carried out . low loss and high uniformity of the multimode interference couplers are achieved when the waveguide is weakly guiding
  研究了y分支耦合器中分支顶端间距(为工艺制作方便)带来的附加损耗，提出了低损耗新型y分支耦合器结构，并给出了相关结构参数的优化设计方法，我们的理论计算和实验测试结果均表明，该新型结构可以在常规光波导制作工艺下提高器件的指标。