Coupling structure for silicon slot waveguide operating at 1064 nm

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• 作者：Xiangdong Li ; Xue Feng ; ^{x-feng@tsinghua.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Xian Xiao ; Yihang Li ; Kaiyu Cui ; Fang Liu ; Yidong Huang
• 关键词：Silicon photonic integrated circuits ; Silicon slot waveguide ; Coupling ; High absorption ; Refraction
• 刊名：Optics Communications
• 出版年：2016
• 出版时间：15 January 2016
• 年：2016
• 卷：359
• 期：Complete
• 页码：129-134
• 全文大小：1203 K

文摘

A coupling structure with a shape of isosceles trapezoid is experimentally demonstrated for injecting lightwave into silicon slot waveguide operating at 1064 nm. A transfer waveguide is adopted to mimic a silicon emitter and the coupling losses of varied mode sizes of incident lightwave are measured. According to experimental results, the low coupling loss region of “<1 dB” is obtained with varied structural parameters. Furthermore, the loss mechanism of our proposed coupling structure is also analyzed.