Optical properties of the direct-coupled Y-branch filtersby using photonic crystal slabs
Tian Jie(田洁)a)†, Ren Cheng(任承)a), Feng Shuai(冯帅)a), Liu Ya-Zhao(刘娅钊)a), Tao Hai-Hua(陶海华)a), Li Zhi-Yuan(李志远)a), Cheng Bing-Ying(程丙英)a), Zhang Dao-Zhong(张道中)a), and Jin Ai-Zi(金爱子)b)
a Laboratory of Optical Physics, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, China; b Laboratory of Micro Fabrication, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
Abstract 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 isrealized by accurately controlling the size of the resonant cavities.
Received: 28 March 2006
Revised: 20 July 2006
Accepted manuscript online:
Fund: 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).
Cite this article:
Tian Jie(田洁), Ren Cheng(任承), Feng Shuai(冯帅), Liu Ya-Zhao(刘娅钊), Tao Hai-Hua(陶海华), Li Zhi-Yuan(李志远), Cheng Bing-Ying(程丙英), Zhang Dao-Zhong(张道中), and Jin Ai-Zi(金爱子) Optical properties of the direct-coupled Y-branch filtersby using photonic crystal slabs 2006 Chinese Physics 15 2471
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