Unidirectional light transmission at telecom wavelengths by polarization-independent diffractive optical element incorporating dual photonic crystal slabs

Jing Wang; Xiaohui Zou; Yangxi Chen; Qize Zhong; Weina Liu; Xiaoyi Liu

doi:10.1117/12.3035744

27 November 2024 Unidirectional light transmission at telecom wavelengths by polarization-independent diffractive optical element incorporating dual photonic crystal slabs

Jing Wang, Xiaohui Zou, Yangxi Chen, Qize Zhong, Weina Liu, Xiaoyi Liu

Author Affiliations +

Proceedings Volume 13237, Optical Design and Testing XIV; 132370F (2024) https://doi.org/10.1117/12.3035744
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

A polarization-independent diffractive optical element (DOE) consisting of dual photonic crystal (PhC) slabs was proposed for unidirectional light transmission at telecom wavelengths. Employing rigorous coupled wave analysis (RCWA) together with genetic algorithm (GA), the contrast ratios of designed DOE with 10nm precision at normal incidence from opposite directions reached to 33.6 dB and 32.2 dB with transmittance differences of 84.57% and 87.63% at wavelengths of 1310 nm and 1550 nm, respectively. The presented DOE showed great promising for applications in optical communication.

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

Citation Download Citation

Jing Wang, Xiaohui Zou, Yangxi Chen, Qize Zhong, Weina Liu, and Xiaoyi Liu "Unidirectional light transmission at telecom wavelengths by polarization-independent diffractive optical element incorporating dual photonic crystal slabs", Proc. SPIE 13237, Optical Design and Testing XIV, 132370F (27 November 2024); https://doi.org/10.1117/12.3035744

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