Helical Bragg gratings filter for orbital angular momentum wave

Seamus Ober; Xiaoli Liu; David Crouse; Chee Keong Tan

doi:10.1063/1.5126610

Helical Bragg gratings filter for orbital angular momentum wave

Seamus Ober^*, Xiaoli Liu, David Crouse, Chee Keong Tan

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

Effective filtration of orbital angular momentum (OAM) modes is essential to achieve multiple-channel data transmission in an OAM fiber for telecommunication applications. The nature of helical-shaped OAM wave propagation possessing many topological charges implies the need for uniquely designed index-modulated filters to conform to its twisted propagating direction in the fiber. Here, different from previous structures in demultiplexing OAM modes, a helical-shaped fiber grating structure concept is proposed as a pathway toward efficient demultiplexing of OAM modes in a fiber. A comparison of our proposed structure with the conventional fiber Bragg filter in transmitting an OAM wave shows a stronger reflection of the higher order OAM mode. We suggest that the proposed fiber Bragg structure has strong potential to be used for OAM fiber telecommunication technology.

Original language	English
Article number	025103
Journal	AIP Advances
Volume	10
Issue number	2
DOIs	https://doi.org/10.1063/1.5126610
Publication status	Published - 1 Feb 2020
Externally published	Yes

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© 2020 Author(s).

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10.1063/1.5126610

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title = "Helical Bragg gratings filter for orbital angular momentum wave",

abstract = "Effective filtration of orbital angular momentum (OAM) modes is essential to achieve multiple-channel data transmission in an OAM fiber for telecommunication applications. The nature of helical-shaped OAM wave propagation possessing many topological charges implies the need for uniquely designed index-modulated filters to conform to its twisted propagating direction in the fiber. Here, different from previous structures in demultiplexing OAM modes, a helical-shaped fiber grating structure concept is proposed as a pathway toward efficient demultiplexing of OAM modes in a fiber. A comparison of our proposed structure with the conventional fiber Bragg filter in transmitting an OAM wave shows a stronger reflection of the higher order OAM mode. We suggest that the proposed fiber Bragg structure has strong potential to be used for OAM fiber telecommunication technology.",

author = "Seamus Ober and Xiaoli Liu and David Crouse and Tan, \{Chee Keong\}",

note = "Publisher Copyright: {\textcopyright} 2020 Author(s).",

year = "2020",

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doi = "10.1063/1.5126610",

language = "English",

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T1 - Helical Bragg gratings filter for orbital angular momentum wave

AU - Ober, Seamus

AU - Liu, Xiaoli

AU - Crouse, David

AU - Tan, Chee Keong

PY - 2020/2/1

Y1 - 2020/2/1

N2 - Effective filtration of orbital angular momentum (OAM) modes is essential to achieve multiple-channel data transmission in an OAM fiber for telecommunication applications. The nature of helical-shaped OAM wave propagation possessing many topological charges implies the need for uniquely designed index-modulated filters to conform to its twisted propagating direction in the fiber. Here, different from previous structures in demultiplexing OAM modes, a helical-shaped fiber grating structure concept is proposed as a pathway toward efficient demultiplexing of OAM modes in a fiber. A comparison of our proposed structure with the conventional fiber Bragg filter in transmitting an OAM wave shows a stronger reflection of the higher order OAM mode. We suggest that the proposed fiber Bragg structure has strong potential to be used for OAM fiber telecommunication technology.

AB - Effective filtration of orbital angular momentum (OAM) modes is essential to achieve multiple-channel data transmission in an OAM fiber for telecommunication applications. The nature of helical-shaped OAM wave propagation possessing many topological charges implies the need for uniquely designed index-modulated filters to conform to its twisted propagating direction in the fiber. Here, different from previous structures in demultiplexing OAM modes, a helical-shaped fiber grating structure concept is proposed as a pathway toward efficient demultiplexing of OAM modes in a fiber. A comparison of our proposed structure with the conventional fiber Bragg filter in transmitting an OAM wave shows a stronger reflection of the higher order OAM mode. We suggest that the proposed fiber Bragg structure has strong potential to be used for OAM fiber telecommunication technology.

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UR - https://www.scopus.com/pages/publications/85079105767

U2 - 10.1063/1.5126610

DO - 10.1063/1.5126610

M3 - Journal Article

SN - 2158-3226

VL - 10

JO - AIP Advances

JF - AIP Advances

IS - 2

M1 - 025103

ER -

Helical Bragg gratings filter for orbital angular momentum wave

Abstract

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