Multimode Polymer Waveguide Components for Complex On-Board Optical Topologies
Multimode Polymer Waveguide Components for Complex On-Board Optical Topologies
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用于复杂板载光学拓扑的多模聚合物波导元件
DOI：
--
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发表时间：
2013
影响因子：
4.7
通讯作者：
I. White
中科院分区：
文献类型：
--
作者：
A. Hashim;N. Bamiedakis;R. Penty;I. White
多模聚合物波导是板级光链路的一种有吸引力的传输介质，因为它们提供高带宽、宽松的对准容差，并且可以直接集成到传统的印刷电路板上。然而，多模波导组件的性能取决于组件输入端的发射条件，这使得它们在需要级联多个多模组件的拓扑中的使用变得复杂。本文介绍了一种多通道光总线的关键聚合物组件，并报告了它们在不同发射条件下的性能，从而得出了可用于设计复杂互连拓扑的有用规则。所研究的器件包括多模信号分离器和合成器、90°交叉、S弯曲和90°弯曲。通过改变分路器臂的宽度，从1×2分路器获得了1%~95%的分路率，同时利用波导组合器实现了低损耗的信号合成。结果表明，将总线宽度增加50μm可使合路器额外损耗提高3分贝，最坏情况下50×100μm波导交的插入损耗为0.1dB/交叉点。提出了一种估算聚合物四通道光总线板上光路插入损耗的经验方法。预测值与实测值吻合较好。尽管该组件和经验方法已经被定制用于多通道光总线体系结构中，但是它们可以用于任何板上光互连拓扑。
Multimode polymer waveguides are an attractive transmission medium for board-level optical links as they provide high bandwidth, relaxed alignment tolerances, and can be directly integrated onto conventional printed circuit boards. However, the performance of multimode waveguide components depends on the launch conditions at the component input, complicating their use in topologies that require the concatenation of multiple multimode components. This paper presents key polymer components for a multichannel optical bus and reports their performance under different launch conditions, enabling useful rules that can be used to design complex interconnection topologies to be derived. The components studied are multimode signal splitters and combiners, 90°-crossings, S-bends, and 90°-bends. By varying the width of the splitter arms, a splitting ratio between 1% and 95% is achieved from the 1 × 2 splitters, while low-loss signal combining is demonstrated with the waveguide combiners. It is shown that a 3 dB improvement in the combiner excess loss can be achieved by increasing the bus width by 50 μm. The worst-case insertion loss of 50 × 100 μm waveguide crossings is measured to be 0.1 dB/crossing. An empirical method is proposed and used to estimate the insertion losses of on-board optical paths of a polymeric four-channel optical bus module. Good agreement is achieved between the predicted and measured values. Although the components and empirical method have been tailored for use in a multichannel optical bus architecture, they can be used for any on-board optical interconnection topology.
使用与拾放组装技术兼容的电光连接器将光收发器集成在 PCB 上
DOI：
10.1117/12.844871
发表时间：
2010
期刊：
--
影响因子：
--
作者：
Bamiedakis N
通讯作者：
Bamiedakis N