High-performance polarization-insensitive thermo-optic Mach–Zehnder switches

Xiaomin Jiao; Lijia Song; Chengfeng Wen; Weixi Liu; Huan Li; Daoxin Dai

doi:10.1117/12.3048524

5 December 2024 High-performance polarization-insensitive thermo-optic Mach–Zehnder switches

Xiaomin Jiao, Lijia Song, Chengfeng Wen, Weixi Liu, Huan Li, Daoxin Dai

Author Affiliations +

Proceedings Volume 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024); 1341822 (2024) https://doi.org/10.1117/12.3048524
Event: 15th International Conference on Information Optics and Photonics (CIOP2024), 2024, Xi’an, China

Abstract

In this paper, we propose and demonstrate a high-performance polarization-insensitive 2×2 thermo-optic Mach–Zehnder switch (PIMZS) by incorporating low-excess-loss varied-width polarization-insensitive multimode interferometer (PIMMI) couplers. The fabricated 2×2 PIMZS features a low excess loss of 0.15-0.79 dB, a high extinction ratio of >24 dB for both TE and TM modes and a low polarization-dependent loss (PDL) of 0.47 dB across the C-band. Furthermore, we demonstrate a small-scale N×N PIMZS (N=4), featuring a low excess loss of <3 dB across the 20-nm bandwidth ranging from 1530nm to 1550nm and a low crosstalk of <−25 dB across the C-band for all 16 routing configurations.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaomin Jiao, Lijia Song, Chengfeng Wen, Weixi Liu, Huan Li, and Daoxin Dai "High-performance polarization-insensitive thermo-optic Mach–Zehnder switches", Proc. SPIE 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024), 1341822 (5 December 2024); https://doi.org/10.1117/12.3048524

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