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
收藏
页码：1665 / 1668
页数：4
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