Si-Waveguide with Ferro-Electric Liquid Crystal Cladding for Use in Optical Switching Devices(High Index Contrast and Photonic Crystal Devices,<Special Section>Recent Advances in Integrated Photonic Devices)
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概要
- 論文の詳細を見る
We studied a silicon (Si) waveguide using ferro-electric liquid crystal (FLC) cladding for various applications in optical networks. The FLCs in the cladding layer change their effective refractive index corresponding to the applied voltage polarity, and give a phase shift to the traveling lightwave in the waveguides. The phase change coefficients of three-layer slab waveguides with FLC/Si/SiO_2 structure were calculated. We observed an amplitude change in the output light of an experimental modulator consisting of a Mach-Zehnder interferometer with FLC-cladding Si-rib waveguides on a silicon-on-insulator wafer, and evaluated the phase shift at a wavelength of 1550nm. We propose optical switching devices using Si-rib waveguide Mach-Zehnder interferometers having FLC cladding. Switching of experimental devices operating at 1550nm wavelength was demonstrated.
- 社団法人電子情報通信学会の論文
- 2007-05-01
著者
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Nakatsuhara Katsumi
Department Of Electrical And Electronic Engineering Kanagawa Institute Of Technology
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Sasaki Toyokazu
Department Of Electrical And Electronic Engineering Kanagawa Institute Of Technology
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Sato Hiroki
Graduate School Of Science And Engineering Department Of Communications And Integrated Systems Tokyo
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Sato Hiroki
Department Of Bioengineering Tokyo Institute Of Technology
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NAKAGAMI Takakiyo
Department of Electrical and Electronic Engineering, Kanagawa Institute of Technology
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Nakagami Takakiyo
Department Of Electrical And Electronic Engineering Kanagawa Institute Of Technology
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