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Effects of random sidewall roughness on optical power splitter

机译：随机侧壁粗糙度对光功率分配器的影响

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摘要

The effect of optical waveguide sidewall roughness (SWR) on the performance of a 1 x2 optical power splitter (OPS) using OptiBPM software for the first time is analyzed. A simulation model is presented to predict the relationship between the SWR and output optical power of OPS for different relatively wide ranges of waveguide width. In particular, different values of waveguide widths, i.e., from w = 1 to 6 μm, and an average roughness depth ρ from 0 to 0.5 μm are considered. In addition, the corresponding insertion loss and uniformity are determined. The results show that output power decreases significantly as the SWR increases due to the increase of the scattering loss, especially for ρ ≥ 0.3 μm and narrow waveguides (i.e., w ≤3 μm) compared with relatively wider ones (i.e., w >3 μm). SWR can greatly increase the scattering loss leading to significant output power loss, which leads to an increase in insertion loss and uniformity. The conclusion drawn from the presented results provide guidelines for evaluation device performance before real fabrication.
机译：首次分析了使用OptiBPM软件对光波导侧壁粗糙度（SWR）对1 x2光功率分配器（OPS）性能的影响。提出了一个仿真模型，以预测在波导宽度相对较大的不同范围内，SWR与OPS输出光功率之间的关系。特别地，考虑了波导宽度的不同值，即，从w ＝ 1至6μm，和从0至0.5μm的平均粗糙度深度ρ。另外，确定相应的插入损耗和均匀性。结果表明，由于散射损耗的增加，输出功率随着SWR的增加而显着降低，特别是对于ρ≥0.3μm和较窄的波导（即w≤3μm），与相对较宽的波导（即w> 3μm）相比）。 SWR会大大增加散射损耗，从而导致明显的输出功率损耗，从而导致插入损耗和均匀性的增加。从给出的结果得出的结论为实际制造之前评估器件性能提供了指导。

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  • 来源
    《Optical engineering》 |2015年第5期|055103.1-055103.8|共8页
  • 作者

    Mohammad Syuhaimi Ab-Rahman; Foze Saleh Ater; Rahmah Mohamed;

  • 作者单位

    Universiti Kebangsaan Malaysia, Faculty of Engineering and Built Environment, Department of Electrical, Electronic and Systems Engineering, 43600 UKM Bangi, Selangor, Malaysia;

    Universiti Kebangsaan Malaysia, Faculty of Engineering and Built Environment, Department of Electrical, Electronic and Systems Engineering, 43600 UKM Bangi, Selangor, Malaysia;

    Universiti Teknologi MARA, Faculty of Applied Sciences, 40450 Shah Alam, Selangor, Malaysia;

  • 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

    optical power splitter; output power ratio; scattering loss; sidewall roughness; simulation.;

    机译：光功率分配器;输出功率比;散射损耗侧壁粗糙度模拟。;

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