Design of an integrated reconfigurable polarization rotator based on right-angle Sb2S3 inlaid in 4H-SiC

Danfeng Zhu; Hui Lai; Junbo Chen; Shaobin Qiu; Dingnan Deng; Han Ye

doi:10.1117/12.3021671

18 March 2024 Design of an integrated reconfigurable polarization rotator based on right-angle Sb₂S₃ inlaid in 4H-SiC

Danfeng Zhu, Hui Lai, Junbo Chen, Shaobin Qiu, Dingnan Deng, Han Ye

Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131040Y (2024) https://doi.org/10.1117/12.3021671
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China

Abstract

A reconfigurable polarization rotator is proposed and demonstrated numerically assisted by a right-angle Sb2S3 inlaid in a slab SiC waveguide. The crystalline Sb₂S₃ enables a 90° polarization rotation with transmittances (T) of -0.22 dB and polarization conversion efficiency (PCE) of 98.36% at the wavelength of 1500 nm. This rotation effect disappears with T > -0.014 dB and PCE < 3.16% within the waveband from 1500 nm to 1600 nm when the Sb₂S₃ is switched to the amorphous state. The reconfigurable polarization rotator can contribute to the programmable photonic integrated circuits and neuromorphic optical computing.

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

Citation Download Citation

Danfeng Zhu, Hui Lai, Junbo Chen, Shaobin Qiu, Dingnan Deng, and Han Ye "Design of an integrated reconfigurable polarization rotator based on right-angle Sb₂S₃ inlaid in 4H-SiC", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131040Y (18 March 2024); https://doi.org/10.1117/12.3021671

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