A THz Single-Polarization-Single-Mode (SPSM) photonic crystal fiber based on epsilon-near-zero material

Tianyu Yang; Can Ding; Richard W. Ziolkowski; Y. Jay Guo

doi:10.1117/12.2539773

30 December 2019 A THz Single-Polarization-Single-Mode (SPSM) photonic crystal fiber based on epsilon-near-zero material

Tianyu Yang, Can Ding, Richard W. Ziolkowski, Y. Jay Guo

Author Affiliations +

Proceedings Volume 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019; 112002T (2019) https://doi.org/10.1117/12.2539773
Event: ANZCOP, 2019, Melbourne, Australia

Abstract

To overcome the crosstalk happening between two degenerately fundamental modes of a fiber in Terahertz (THz) regime, a novel photonic crystal fiber (PCF) that yields a wide range of single-polarization-single-mode (SPSM) propagation with large loss differences (LDs) is designed. The method used to realize this SPSM PCF is to deposit an epsilon-near-zero (ENZ) material in four selected air holes in the cladding, which ends up with four ENZ rings. These ENZ rings introduce significant LDs between the wanted (X-polarized) and unwanted (Y-polarized and high order) modes. Extensive simulation results demonstrate that the LDs between the wanted and unwanted modes vary with the thickness of ENZ rings. With a very short length (4 cm) of the proposed PCF, pure SPSM propagation, i.e., the unwanted modes are 20 dB lower than the wanted mode, can be achieved from 1 to 1.2 THz.

Citation Download Citation

Tianyu Yang, Can Ding, Richard W. Ziolkowski, and Y. Jay Guo "A THz Single-Polarization-Single-Mode (SPSM) photonic crystal fiber based on epsilon-near-zero material", Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 112002T (30 December 2019); https://doi.org/10.1117/12.2539773

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