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高效的光合器以拓的缓慢光波导在山谷光子晶体中的光学晶体

Hironobu Yoshimi, Takuto Yamaguchi, Satomi Ishida

|March 5, 2024

概括

我们开发了高效的光合器,用于山谷光子晶体 (VPhC) 和线缆波导中的拓缓慢光波导. 这些合器实现了高效率,为低损耗光子集成电路铺平了道路.

科学领域:

光子学是指光子学的使用方法.
凝聚物质物理学凝聚物质物理学
材料科学材料科学材料科学

背景情况:

拓光子学为强大的光操纵提供了独特的特性.
谷 photonic 晶体 (VPhCs) 使用取决于谷的带结构来控制光线.
不同波导类型之间的高效接口对于集成光子电路至关重要.

研究的目的:

演示和描述VPhC和传统电线波导之间的高效光合.
为了在慢光模式下实现高合效率,用于光子集成电路中的潜在应用.

主要方法:

进行了数值模拟,以预测和优化合器性能.
在 (Si) 板中实验性制造合器.
测量传输功率以确定合效率.

主要成果:

数字模拟结果显示,平均合效率为 -0.84 dB/合器.
实验结果显示,高合效率约为-1.2dB/合器.
这两种结果都是在慢光模式下实现的,组指数 (n_g) 为10-30.

结论:

已经成功地证明了拓VPhC和线波导之间的高效光合.
取得的合效率对实际应用具有前景.
这项工作为开发利用拓缓慢光的低损耗光子集成电路提供了基础.

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The Wave Nature of Light

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The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.