Multimode waveguide spot size width converter for silicon photonics applications

Salwa El-Sabban; Diaa Khalil

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Multimode waveguide spot size width converter for silicon photonics applications

机译：用于硅光子学应用的多模波导光斑尺寸宽度转换器

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We present the design of a parabolic multimode waveguide used as a spot size width converter. The designed structure allows reducing the input spot size width an order of magnitude using a very short structure with respect to linear or conventional tapers. An illustrative example of spot width reduction from 10 microns to a Si wire of 1 micron with a small length in the order of 17 microns and a coupling efficiency of ~90% is presented. Using a linear taper structure with a taper length >100 µm, the coupled power is still less than that obtained by the parabolic multimode interference (PMMI) guide. This means that the PMMI offers a length reduction of more than 5x with respect to the linear taper to achieve the same spot reduction.

机译：我们提出了一种用作点尺寸宽度转换器的抛物线型多模波导的设计。设计的结构允许使用相对于线性或常规锥度非常短的结构，将输入光斑尺寸宽度减小一个数量级。给出了光斑宽度从10微米减小到1微米Si线的示例性示例，Si线的长度很小，约为17微米，耦合效率约为90％。使用锥度长度大于100 µm的线性锥度结构，耦合功率仍小于抛物线多模干涉（PMMI）指南获得的功率。这意味着相对于线性锥度，PMMI的长度减少了5倍以上，从而实现了相同的光斑减少。

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来源
《Optical engineering》 |2015年第3期|037103.1-037103.6|共6页
作者
Salwa El-Sabban; Diaa Khalil;
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作者单位

Helwan University, Faculty of Engineering, Electronics and Communication Engineering Department, 1 Sherif Street, Helwan, Cairo 11792, Egypt;

Ain-Shams University, Faculty of Engineering, Electronics and Communication Engineering Department, 1 Elsarayat Street, Abbassia, Cairo 11317, Egypt;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
spot size converter; multimode interference; silicon waveguide;

机译：点尺寸转换器;多模干扰;硅波导;

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2. Monolithically integrated low-loss three-dimensional spot-size converter and silicon photonic waveguides constructed by nanotuned Bosch process and oxidation [J] . Ling-Han Li Akio Higo Masakazu Sugiyama and Yoshiaki Nakano Journal of Micro/Nanolithography,MEMS,and MOEMS . 2011,第2期

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Multimode waveguide spot size width converter for silicon photonics applications

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