2026-10-11T05:49:47Z https://www.scidb.cn/oai

10.57760/sciencedb.14060 2024-05-14T10:39:25Z

2024-05-14 Low Crosstalk Waveguide Crossing for Lithium Niobate Integration Application doi:10.57760/sciencedb.14060 en With the development of thin-film lithium niobate (TFLN) in the field of integrated photonics, it has become particularly important to achieve large-scale integration. The multi-channel waveguide crossing which has low crosstalk and loss can enhance the integration density and routing flexibility. Due to the anisotropy of lithium niobate, we propose and demonstrate 2×2 waveguide crossing with different waveguide sizes based on the self-imaging. The waveguide crossing based on 600 nm X-cut TFLN. The crosstalk of those crossings are less than-33.31 and-30.81 dB, respectively, in C-band. The corresponding insertion loss minima are about 0.094 dB and 0.356 dB, respectively. waveguide crossing; Lithium Niobate; integrated photonics; self-imaging Hu Yibiao He Jiajing Wang Jun RESTRICTED dataset Science Data Bank