IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
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LiNbO3 optical switch using asymmetric X-junction waveguide for broadband optical network node
Takuya SakamakiYu NaritaHiroyuki TsudaShinya NakajimaTetsuya Kawanishi
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2010 Volume 7 Issue 5 Pages 360-364

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Abstract

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.

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© 2010 by The Institute of Electronics, Information and Communication Engineers
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