摘要
给出一种较为简便的全电极脊形波导的分析方法,即采用有效折射率方法把此金属包层脊形波导化成一个二维等效平板波导,然后利用微分法得到模的有效折射率满足的方程和吸收损耗系数的解析表达式.作为一个特例,用这种方法对SiO2全电极脊形波导光传输特性如光传播常数和损耗进行了计算,并得到一些有益的结论.
The convenient analytical method for the all-metal-cladding rib waveguide is presented. The metal-cladding rib waveguide is converted into the two-dimension slab one by using the effective refractive method, then the equation of satisfying effective refractive index and the formula of absorption loss coefficient are derived by the derivation method for the all- metalcladding rib waveguide. Taking this method as an example, optical propagation constant and the loss characteristics for SiO2 have been calculated actually. Some available results are obtained.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2005年第7期984-987,共4页
Acta Photonica Sinica
关键词
光波导
金属包层
吸收损耗
有效折射率
Optical waveguide
Metal cladding
Absorption loss
Effective refractive index
