Low-loss terahertz polarization splitter based on an asymmetric dual-suspended-core fiber

Yuan-Feng Zhu; Xin Liu; Chun-Fang Rao; Hua Zhong; Hai-Mei Luo; Yan-Hua Chen; Zhi-Qing Ye; Hua Wang

doi:10.1117/1.OE.57.8.086112

23 August 2018 Low-loss terahertz polarization splitter based on an asymmetric dual-suspended-core fiber

Yuan-Feng Zhu, Xin Liu, Chun-Fang Rao, Hua Zhong, Hai-Mei Luo, Yan-Hua Chen, Zhi-Qing Ye, Hua Wang

Author Affiliations +

Optical Engineering, Vol. 57, Issue 8, 086112 (August 2018). https://doi.org/10.1117/1.OE.57.8.086112

Abstract

A relatively simple design of a terahertz (THz) polarization splitter based on an asymmetric dual-suspended-core fiber is proposed. One core is formed by two intersecting rectangular dielectric strips with dissimilar thickness, whereas the other is a round solid core suspended by crossed dielectric strips with the same thickness. The distance between the cores can be adjusted to ensure a short splitting length and low transmission loss. A THz polarization splitter with a length of 1.27 cm is realized with a low transmission loss of 0.53 and 0.67 dB for the x- and y-polarization modes, respectively. An extinction ratio of about −20 dB and a broad bandwidth of 0.046 THz are demonstrated.

Citation Download Citation

Yuan-Feng Zhu, Xin Liu, Chun-Fang Rao, Hua Zhong, Hai-Mei Luo, Yan-Hua Chen, Zhi-Qing Ye, and Hua Wang "Low-loss terahertz polarization splitter based on an asymmetric dual-suspended-core fiber," Optical Engineering 57(8), 086112 (23 August 2018). https://doi.org/10.1117/1.OE.57.8.086112

Received: 1 April 2018; Accepted: 8 August 2018; Published: 23 August 2018

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