Compact optical mode and polarization filtering devices based on subwavelength gratings on a lithium niobate on insulator platform

Xu Han; Li Chen; Yongheng Jiang; Andreas Frigg; Huifu Xiao; Thach Giang Nguyen; Andreas Boes; Jianhong Yang; Guanghui Ren; Yikai Su; Arnan Mitchell; Yonghui Tian

doi:10.1117/12.2654818

15 December 2022 Compact optical mode and polarization filtering devices based on subwavelength gratings on a lithium niobate on insulator platform

Xu Han, Li Chen, Yongheng Jiang, Andreas Frigg, Huifu Xiao, Thach Giang Nguyen, Andreas Boes, Jianhong Yang, Guanghui Ren, Yikai Su, Arnan Mitchell, Yonghui Tian

Author Affiliations +

Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 124783B (2022) https://doi.org/10.1117/12.2654818
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China

Abstract

We propose and demonstrate compact optical mode and polarization filtering devices on a lithium niobate on insulator (LNOI) platform. The subwavelength grating-based high-order mode pass filter and TM-pass polarizer are designed and experimentally demonstrated successfully. The measured insertion losses and extinction ratio at 1550 nm are lower than 1.9 dB and larger than 30 dB, respectively, while the device lengths are only about 50 μm.

Citation Download Citation

Xu Han, Li Chen, Yongheng Jiang, Andreas Frigg, Huifu Xiao, Thach Giang Nguyen, Andreas Boes, Jianhong Yang, Guanghui Ren, Yikai Su, Arnan Mitchell, and Yonghui Tian "Compact optical mode and polarization filtering devices based on subwavelength gratings on a lithium niobate on insulator platform", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 124783B (15 December 2022); https://doi.org/10.1117/12.2654818

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