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Transmission Properties of W3 Y-Branch Filters in Two-Dimensional Photonic Crystal Slabs |
REN Cheng1,2;REN Kun1;LIU Rong-Juan1;TAO Hai-Hua1;FENG Shuai3;XIONG
Zhi-Gang1;LIU Ya-Zhao1;TIAN Jie1;LI Zhi-Yuan1;CHENG Bing-Ying1;ZHANG Dao-Zhong1 |
| 1Optical Physics Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing 1000802College of Photo-Electronic Information Science and Technology, Yantai University, Yantai 2640053Academy of Physics and Electronic Engineering, Central University of Nationalities, Beijing 100081 |
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| Cite this article: |
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REN Cheng, REN Kun, LIU Rong-Juan et al 2007 Chin. Phys. Lett. 24 2863-2866 |
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Abstract A highly efficient W3 Y-branch filter in a two-dimensional photonic crystal slab with triangular lattice of air holes is designed and fabricated, and its transmission properties are measured. By accurately adjusting the size of the resonant cavities, the minimum wavelength spacing of 7nm between two channels is realized. The corresponding resonant wavelengths of the two cavities agree well with the calculated ones. This implies that this kind of filter may be promising in integrated wavelength division multiplexing system.
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| Keywords:
42.70.Qs
42.82.Et
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Received: 21 June 2007
Published: 20 September 2007
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| PACS: |
42.70.Qs
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(Photonic bandgap materials)
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42.82.Et
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(Waveguides, couplers, and arrays)
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