Polarization-independent silicon photonic grating coupler for large spatial light spots
Lijun Yang(杨丽君), Xiaoyan Hu(胡小燕), Bin Li(李斌), and Jing Cao(曹静)
中国物理B . 2021, (2): 24206 -0 .  DOI: 10.1088/1674-1056/abbc00