Ultra-compact Fiber-to-chip Metasurface-based Edge Coupler

被引：1

作者：

Xu, Sumei ^{[1
]}

Dong, Yuan ^{[1
]}

Zheng, Shaonan ^{[1
]}

Zhong, Qize ^{[1
]}

Hu, Ting ^{[1
]}

机构：

[1] Shanghai Univ, Sch Microelect, Shanghai, Peoples R China

来源：

2022 ASIA COMMUNICATIONS AND PHOTONICS CONFERENCE, ACP | 2022年

关键词：

edge coupler; metasurface; cleaved fiber; aluminum nitride; coupling loss; SIZE;

D O I：

10.1109/ACP55869.2022.10088902

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose an ultra-compact metasurface-based fiber-to-chip edge coupler with coupling length of 23.5 mu m for aluminum nitride (AlN) photonics. The coupling loss is similar to 1.54 dB/facet through a commercially cleaved fiber with an 8 mu m mode diameter working at 2 mu m. We compare the coupling efficiency performance of scandium-doped AlN (AlScN) edge couplers with different concentrations of scandium, and the simulation results show the proposed edge coupler with a higher concentration of scandium achieves lower coupling loss for transverse electric (TE) mode. The fabrication process is simple and compatible with the standard foundry process.

引用

页码：1665 / 1668

页数：4

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