T-shaped dielectric slot waveguides for efficient control of birefringence and polarization independent directional coupling

Yusheng Bian; Zheng Zheng; Xin Zhao; Yalin Su; Lei Liu; Jiansheng Liu; Jinsong Zhu; Tao Zhou

doi:10.1016/j.optcom.2012.07.104

T-shaped dielectric slot waveguides for efficient control of birefringence and polarization independent directional coupling

Yusheng Bian, Zheng Zheng, Xin Zhao, Yalin Su, Lei Liu, Jiansheng Liu, Jinsong Zhu, Tao Zhou

Physics

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A novel dielectric slot waveguide supporting strongly confined field in a T-shaped low-index slot region for both TE and TM polarizations is proposed and analyzed. Numerical simulations have demonstrated that quite different birefringent modal properties are achievable with tight optical confinement in the slot by tuning key geometrical parameters of the waveguide. Based on such a slot structure, the characteristics of directional couplers are investigated and the conditions for polarization independent coupling are also given. The presented T-shaped slot waveguide might be employed in integrated photonic systems as important building blocks enabling a number of potential applications.

Original language	English (US)
Pages (from-to)	5118-5121
Number of pages	4
Journal	Optics Communications
Volume	285
Issue number	24
DOIs	https://doi.org/10.1016/j.optcom.2012.07.104
State	Published - Nov 1 2012

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

Keywords

Birefringence
Directional coupler
Nanostructures
Slot waveguide

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10.1016/j.optcom.2012.07.104

Cite this

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title = "T-shaped dielectric slot waveguides for efficient control of birefringence and polarization independent directional coupling",

abstract = "A novel dielectric slot waveguide supporting strongly confined field in a T-shaped low-index slot region for both TE and TM polarizations is proposed and analyzed. Numerical simulations have demonstrated that quite different birefringent modal properties are achievable with tight optical confinement in the slot by tuning key geometrical parameters of the waveguide. Based on such a slot structure, the characteristics of directional couplers are investigated and the conditions for polarization independent coupling are also given. The presented T-shaped slot waveguide might be employed in integrated photonic systems as important building blocks enabling a number of potential applications.",

keywords = "Birefringence, Directional coupler, Nanostructures, Slot waveguide",

author = "Yusheng Bian and Zheng Zheng and Xin Zhao and Yalin Su and Lei Liu and Jiansheng Liu and Jinsong Zhu and Tao Zhou",

year = "2012",

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doi = "10.1016/j.optcom.2012.07.104",

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pages = "5118--5121",

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T1 - T-shaped dielectric slot waveguides for efficient control of birefringence and polarization independent directional coupling

AU - Bian, Yusheng

AU - Zheng, Zheng

AU - Zhao, Xin

AU - Su, Yalin

AU - Liu, Lei

AU - Liu, Jiansheng

AU - Zhu, Jinsong

AU - Zhou, Tao

PY - 2012/11/1

Y1 - 2012/11/1

N2 - A novel dielectric slot waveguide supporting strongly confined field in a T-shaped low-index slot region for both TE and TM polarizations is proposed and analyzed. Numerical simulations have demonstrated that quite different birefringent modal properties are achievable with tight optical confinement in the slot by tuning key geometrical parameters of the waveguide. Based on such a slot structure, the characteristics of directional couplers are investigated and the conditions for polarization independent coupling are also given. The presented T-shaped slot waveguide might be employed in integrated photonic systems as important building blocks enabling a number of potential applications.

AB - A novel dielectric slot waveguide supporting strongly confined field in a T-shaped low-index slot region for both TE and TM polarizations is proposed and analyzed. Numerical simulations have demonstrated that quite different birefringent modal properties are achievable with tight optical confinement in the slot by tuning key geometrical parameters of the waveguide. Based on such a slot structure, the characteristics of directional couplers are investigated and the conditions for polarization independent coupling are also given. The presented T-shaped slot waveguide might be employed in integrated photonic systems as important building blocks enabling a number of potential applications.

KW - Birefringence

KW - Directional coupler

KW - Nanostructures

KW - Slot waveguide

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U2 - 10.1016/j.optcom.2012.07.104

DO - 10.1016/j.optcom.2012.07.104

M3 - Article

AN - SCOPUS:84867580482

SN - 0030-4018

VL - 285

SP - 5118

EP - 5121

JO - Optics Communications

JF - Optics Communications

IS - 24

ER -

T-shaped dielectric slot waveguides for efficient control of birefringence and polarization independent directional coupling

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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