In this paper, when assuming a Gaussian near field distribution on the crosssection of single-mode fiber, it has been derived theoretically that the far field is also a Gaussian distribution.
本文在假定单模光纤横端面上的近场为高斯分布的前提下,从理论上导出了其远场分布也是高斯分布。
2
The mode dispersion characteristics and cut-off properties of rib waveguide with trapezoidal crosssection are investigated.
变换伽辽金法对具有梯形截面脊形光波导的本征模式特性作了分析。
3
The main mode of thinking on the study of regional historical geography is erecting the continuous geographical crosssection.