LiNbO3 optical switch using asymmetric X-junction waveguide for broadband optical network node

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概要

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• Broadband optical switches are required for a wavelength division multiplexed photonic network node. The wavelength dependency of the LiNbO3 optical switch characteristics are mainly attributed to the directional coupler section. An asymmetric X-junction was suitable for a broadband optical switch because it has flat spectral response over wide wavelength range and it is easy to fabricate. We have optimized the structure of an asymmetric X-junction and fabricated the 1×2 LiNbO3 optical switches using it. The optical switch showed broad band characteristics compared to the switch with a directional coupler.

著者

• Kawanishi Tetsuya

  National Inst. Of Information And Technol. (nict) Tokyo Jpn

• Nakajima Shinya

  National Institute of Information and Communications Technology

• Narita Yu

  Science and Engineering, Keio University

• Sakamaki Takuya

  Science and Engineering, Keio University

• Tsuda Hiroyuki

  Science and Engineering, Keio University

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