An Ultra-Wideband Single-Polarization-Single-Mode Terahertz Photonic Crystal Fiber

Yang, T; Ding, C; Ziolkowski, RW; Jay Guo, Y

An Ultra-Wideband Single-Polarization-Single-Mode Terahertz Photonic Crystal Fiber

Yang, T Ding, C

Ziolkowski, RW Jay Guo, Y

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Publisher:: IEEE
Publication Type:: Conference Proceeding
Citation:: Proceedings of the 2020 IEEE International Conference on Computational Electromagnetics, ICCEM 2020, 2020, 00, pp. 21-22
Issue Date:: 2020-08-01

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Field	Value	Language
dc.contributor.author	Yang, T
dc.contributor.author	Ding, C https://orcid.org/0000-0002-2629-1657
dc.contributor.author	Ziolkowski, RW
dc.contributor.author	Jay Guo, Y
dc.date	2020-08-24
dc.date.accessioned	2021-02-17T04:49:07Z
dc.date.available	2021-02-17T04:49:07Z
dc.date.issued	2020-08-01
dc.identifier.citation	Proceedings of the 2020 IEEE International Conference on Computational Electromagnetics, ICCEM 2020, 2020, 00, pp. 21-22
dc.identifier.isbn	9781728168234
dc.identifier.uri	http://hdl.handle.net/10453/146169
dc.description.abstract	© 2020 IEEE. A terahertz (THz) photonic crystal fiber (PCF) with an ultra-wide bandwidth and single-polarization-single-mode (SPSM) operation is designed and analyzed. Two air slots are introduced in the core region and epsilon-near-zero (ENZ) material is deposited in four specific air holes in the cladding of the PCF. The design achieves significantly different electric (E)-field distributions of the X-polarized (XP) and Y-polarized (YP) modes. The E-field components overlapping the ENZ material are attenuated because it is lossy. Gain material is then deposited in a rectangular slot in the core center to provide amplification of the E-field components overlapping this gain region. Changing the dimensions of the PCF modifies the amplification and attenuation rates to the wanted XP mode, the unwanted YP mode, and any unwanted higher order (HO) modes. The amplification of the wanted mode and the attenuation of the unwanted modes are maximized through optimization. The result is a PCF with an ultra-wide SPSM spectrum of 0.53 THz, from 1.00 to 1.53 THz. The minimum loss difference (MLD) across this bandwidth between the wanted mode and any unwanted modes is over 7.4 dB/cm. To the best of our knowledge, this is the widest SPSM bandwidth of a PCF fiber reported in THz regime.
dc.language	en
dc.publisher	IEEE
dc.relation	Tongyu Communication (Australia) Pty Ltd
dc.relation	http://purl.org/au-research/grants/arc/DE200101347
dc.relation	Department of Industry, Innovation and ScienceICG001404
dc.relation.ispartof	Proceedings of the 2020 IEEE International Conference on Computational Electromagnetics, ICCEM 2020
dc.relation.ispartof	2020 IEEE International Conference on Computational Electromagnetics (ICCEM)
dc.relation.isbasedon	10.1109/ICCEM47450.2020.9219500
dc.rights	© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	An Ultra-Wideband Single-Polarization-Single-Mode Terahertz Photonic Crystal Fiber
dc.type	Conference Proceeding
utslib.citation.volume	00
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
dc.date.updated	2021-02-17T04:48:59Z
pubs.finish-date	2020-08-26
pubs.publication-status	Published
pubs.start-date	2020-08-24
pubs.volume	00

Abstract:

© 2020 IEEE. A terahertz (THz) photonic crystal fiber (PCF) with an ultra-wide bandwidth and single-polarization-single-mode (SPSM) operation is designed and analyzed. Two air slots are introduced in the core region and epsilon-near-zero (ENZ) material is deposited in four specific air holes in the cladding of the PCF. The design achieves significantly different electric (E)-field distributions of the X-polarized (XP) and Y-polarized (YP) modes. The E-field components overlapping the ENZ material are attenuated because it is lossy. Gain material is then deposited in a rectangular slot in the core center to provide amplification of the E-field components overlapping this gain region. Changing the dimensions of the PCF modifies the amplification and attenuation rates to the wanted XP mode, the unwanted YP mode, and any unwanted higher order (HO) modes. The amplification of the wanted mode and the attenuation of the unwanted modes are maximized through optimization. The result is a PCF with an ultra-wide SPSM spectrum of 0.53 THz, from 1.00 to 1.53 THz. The minimum loss difference (MLD) across this bandwidth between the wanted mode and any unwanted modes is over 7.4 dB/cm. To the best of our knowledge, this is the widest SPSM bandwidth of a PCF fiber reported in THz regime.

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