非线性包层矩形波导基模的均匀芯区场

通过对芯片为线性、介质包层为非线性自聚焦Kerr介质的埋入型矩形波导的理论分析和数值计算表明：当模折射等于芯片折射率时，E00^y模芯区的场呈现等振幅的均匀分布四周包层的场则急剧衰减；在模折射率分别小于和大于芯片折射率时，E00^y模芯区场分布分别成为上凸和下凹的曲面。

Uniform Core Field of the Fundamental Mode in a Rectangular Waveguide with Nonlinear Cladding

It is presented that theoretical analysis and numerical calculations for E y 00 mode of a buried linear rectangular waveguide with Kerr type nonlinear cladding.It is shown that when the modal refractive index N equals to the refractive index of core n f,the core field distribution of E y 00 mode becomes uniform,while the cladding field reduces rapidly;for Nn f,the field amplitude distributions surfaces become convex and concave respectively.It is notified that the occurrence of uniform core field in a waveguide core may perhaps have prospective application in waveguide,optic electric and photonic devices.