Circular hole ENZ photonic crystal fibers exhibit high birefringence

Yang, T; Ding, C; Ziolkowski, RW; Guo, YJ

Circular hole ENZ photonic crystal fibers exhibit high birefringence

Yang, T

Ding, C

Ziolkowski, RW

Guo, YJ

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Publication Type:: Journal Article
Citation:: Optics Express, 2018, 26 (13), pp. 17264 - 17278
Issue Date:: 2018-06-25

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Field	Value	Language
dc.contributor.author	Yang, T https://orcid.org/0000-0002-0888-4053	en_US
dc.contributor.author	Ding, C https://orcid.org/0000-0002-2629-1657	en_US
dc.contributor.author	Ziolkowski, RW https://orcid.org/0000-0003-4256-6902	en_US
dc.contributor.author	Guo, YJ https://orcid.org/0000-0001-6008-9682	en_US
dc.date.issued	2018-06-25	en_US
dc.identifier.citation	Optics Express, 2018, 26 (13), pp. 17264 - 17278	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126359
dc.description.abstract	© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement —A novel photonic crystal fiber (PCF) design that yields very high birefringence is proposed and analyzed. Its significantly enhanced birefringence is achieved by filling selected air holes in the cladding with an epsilon-near-zero (ENZ) material. Extensive simulation results of this asymmetric material distribution in the lower THz range demonstrate that the reported PCF has a birefringence above 0.1 and a loss below 0.01 cm−1 over a wide band of frequencies. Moreover, it exhibits near zero dispersion at 0.75 THz for both the X- and Y-polarization modes and a birefringence equal to 0.28. This THz PCF is then scaled successfully to optical frequencies. While the high birefringence is maintained, this optical PCF has a very high loss in its Y-polarization mode and, consequently, yields single-polarization single-mode (SPSM) propagation, exhibiting near zero dispersion at the optical telecom wavelength of 1.55 μm. The ideal ENZ materials used for these conceptual models are replaced with realistic ones for both the THz and optical PCF designs. With the currently available ENZ materials, the realistic PCFs still have a high birefringence, but with higher losses compared to the idealized results. Future developments of ENZ materials that achieve lower loss properties will mitigate this issue in any frequency band of high interest.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP160102219
dc.relation.ispartof	Optics Express	en_US
dc.relation.isbasedon	10.1364/OE.26.017264	en_US
dc.rights	© 2018 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Optics	en_US
dc.title	Circular hole ENZ photonic crystal fibers exhibit high birefringence	en_US
dc.type	Journal Article
utslib.citation.volume	13	en_US
utslib.citation.volume	26	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	1005 Communications Technologies	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
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/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access	*
pubs.issue	13	en_US
pubs.publication-status	Published	en_US
pubs.volume	26	en_US

Abstract:

© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement —A novel photonic crystal fiber (PCF) design that yields very high birefringence is proposed and analyzed. Its significantly enhanced birefringence is achieved by filling selected air holes in the cladding with an epsilon-near-zero (ENZ) material. Extensive simulation results of this asymmetric material distribution in the lower THz range demonstrate that the reported PCF has a birefringence above 0.1 and a loss below 0.01 cm−1 over a wide band of frequencies. Moreover, it exhibits near zero dispersion at 0.75 THz for both the X- and Y-polarization modes and a birefringence equal to 0.28. This THz PCF is then scaled successfully to optical frequencies. While the high birefringence is maintained, this optical PCF has a very high loss in its Y-polarization mode and, consequently, yields single-polarization single-mode (SPSM) propagation, exhibiting near zero dispersion at the optical telecom wavelength of 1.55 μm. The ideal ENZ materials used for these conceptual models are replaced with realistic ones for both the THz and optical PCF designs. With the currently available ENZ materials, the realistic PCFs still have a high birefringence, but with higher losses compared to the idealized results. Future developments of ENZ materials that achieve lower loss properties will mitigate this issue in any frequency band of high interest.

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http://hdl.handle.net/10453/126359