Achromatic polarization rotator based on splay-twist liquid crystal

Tsung-Hsien Lin; Chun-Wei Chen; Duan-Yi Guo; Li-Min Chang

doi:10.1117/12.2596414

1 August 2021 Achromatic polarization rotator based on splay-twist liquid crystal

Tsung-Hsien Lin, Chun-Wei Chen, Duan-Yi Guo, Li-Min Chang

Proceedings Volume 11807, Liquid Crystals XXV; 1180709 (2021) https://doi.org/10.1117/12.2596414
Event: SPIE Organic Photonics + Electronics, 2021, San Diego, California, United States

Abstract

An electrically tunable achromatic polarization rotator has been developed based on the hybrid splay-twist (HST) liquid crystal. The proposed polarization rotator is advantageous over the conventional ones owing to the thin thickness (sub-100μm), continuous angular rotation, and achromatic operation across the entire visible spectrum. The tuning range of the polarization rotator is up to 90° via a simple electric field application; meanwhile, the degree of linear polarization (DOLP) remains. The rotation angle can be expanded to 180° by a tandem-cell geometry. The work will offer possibilities in the design of various optical systems and spatially polarization multiplexing elements.

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Citation Download Citation

Tsung-Hsien Lin, Chun-Wei Chen, Duan-Yi Guo, and Li-Min Chang "Achromatic polarization rotator based on splay-twist liquid crystal", Proc. SPIE 11807, Liquid Crystals XXV, 1180709 (1 August 2021); https://doi.org/10.1117/12.2596414

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KEYWORDS

Polarization

Liquid crystals

Dispersion

Multiplexing

Numerical modeling

Optical communications

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