Optical properties of the direct-coupled Y-branch filters by using photonic crystal slabs  

作　　者：田洁 任承 冯帅 刘娅钊 陶海华 李志远 程丙英 张道中 金爱子 

机构地区：[1]Laboratory of Optical Physics, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, China [2]Laboratory of Micro Fabrication, Institute of Physics,. Chinese Academy of Sciences, Beijing 100080, China

出　　处：《Chinese Physics B》2006年第11期2471-2475,共5页中国物理B（英文版）

基　　金：Project supported by the National Key Basic Research and Development Programme of China （Grant No 2001CB6104）, the National Center for Nanoscience and Technology, China （Grant No 2003CB7169） and the National Natural Science Foundation of China （Grant No 10474036）.

摘　　要：We fabricated a new type of two-dimensional photonic crystal slab filter. The resonant cavities were directly put into the waveguide arms. The optical transmissions of the filters were measured and the results show that the optimized two-channel filters give good intensity distribution at the output ports of the waveguide. A minimum wavelength spacing of 5 nm of the filter outputs is realized by accurately controlling the size of the resonant cavities.We fabricated a new type of two-dimensional photonic crystal slab filter. The resonant cavities were directly put into the waveguide arms. The optical transmissions of the filters were measured and the results show that the optimized two-channel filters give good intensity distribution at the output ports of the waveguide. A minimum wavelength spacing of 5 nm of the filter outputs is realized by accurately controlling the size of the resonant cavities.

关 键 词：photonic crystal filter MICRO-CAVITY Y-branch splitter waveguide 

分 类 号：O[理学]