摘要
应用切比雪夫多项式 ,求得了仅有相邻波导耦合的 (N +1)× (N +1)定向耦合器在弱耦合、无损耗和忽略正交偏振模场分量间耦合的情形下波导耦合方程的通解。列出线形排列 2× 2 ,3× 3,4× 4定向耦合器的解的表达式 ,并对环形排列 3×
General analytical solutions are given by means of Chebyshev polynomial for directional couplers, which are made up by lossless multi-waveguides in a line or in a ring, weak coupling existing only between neighbored waveguides and polarization coupling being not considered also. As examples, expressions for the 2×2, 3×3 and 4×4 directional couplers in the form of line are deduced. Besides, solution to the 3×3 directional coupler arranged in a ring is given and analyzed in detail.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2003年第8期964-969,共6页
Acta Optica Sinica
基金
上海市教委青年基金 (0 2AQ77)
上海市重点学科建设资金资助课题
