LiNbO3 optical switch using asymmetric X-junction waveguide for broadband optical network node
LiNbO3 optical switch using asymmetric X-junction waveguide for broadband optical network node
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DOI：
10.1587/elex.7.360
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发表时间：
2010-03
期刊：
影响因子：
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通讯作者：
Takuya Sakamaki;Yu Narita;H. Tsuda;S. Nakajima;T. Kawanishi
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文献类型：
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作者：
Takuya Sakamaki;Yu Narita;H. Tsuda;S. Nakajima;T. Kawanishi
波分复用光网络节点需要宽带光开关。LiNbO_3光开关特性的波长依赖性主要归因于定向耦合段。由于非对称X结在宽波长范围内具有平坦的光谱响应，且易于制作，因此适用于宽带光开关。我们优化了非对称X结的结构，并用它制作了1×2的LiNbO_3光开关。与具有定向耦合器的光开关相比，该光开关表现出了宽带特性。
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.