Directional coupler design based on coupled cavity waveguides in photonic crystals |
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| Authors: | Quan Xu Kang Xie Jiang Ping |
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| Institution: | a College of Optoelectronic Information, University of Electronic Science and Technology of China, Sichuan Province 610054, China
b Yibin Vocational and Technical College, Sichuan Province 644003, China |
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| Abstract: | We propose a directional coupler design based on coupled cavity waveguide in photonic crystals. The plane wave expansion is used to give the dispersion of the coupled cavity waveguides and two parallel such waveguides. The couple length is got from the dispersion curves. Based on the research of the dispersion, we present a directional coupler and the transmission property is given. This structure is potentially important for highly efficient directional coupler in integrate optical circuit. |
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| Keywords: | Coupled cavity waveguide Directional coupler Dispersion relation |
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