Design, transform and control of optical field in discrete optical system: an example

Abstract A discrete optical system can broaden the spatial distribution of the input light through optical coupling in array waveguides, just like diffraction in continuous media. Here, we theoretically demonstrate several kinds of control methods of optical field propagation in a discrete optical s...

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Autores principales:	Hongchang Deng, Yonggui Yuan, Libo Yuan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9f14f3eb2c8a4ae2a3b93382abfaba98
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spelling	oai:doaj.org-article:9f14f3eb2c8a4ae2a3b93382abfaba982021-12-02T15:05:49ZDesign, transform and control of optical field in discrete optical system: an example10.1038/s41598-017-05414-w2045-2322https://doaj.org/article/9f14f3eb2c8a4ae2a3b93382abfaba982017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05414-whttps://doaj.org/toc/2045-2322Abstract A discrete optical system can broaden the spatial distribution of the input light through optical coupling in array waveguides, just like diffraction in continuous media. Here, we theoretically demonstrate several kinds of control methods of optical field propagation in a discrete optical system, which is composed of an Airy fiber with two perpendicular arrayed cores. A brief transform mechanism between Gaussian and Airy beam propagation in such a fiber is presented. The wavefront of the output beam from the Airy fiber is actually dependent on the phased arrayed modulation of coupling array cores. Except the optical wavelength changing, we propose two new methods, including fiber length and bending-induced refractive-index changing, to accomplish that modulation. The calculation results show that these new methods are very effective for the Airy phase modulation. By combining these methods and controlling the corresponding parameters, the Gaussian beam, the one-dimension Airy beam, and the two-dimension Airy beam can be obtained by one same Airy fiber. These methods are also generally applicable to the other discrete optical system and can be extended to generate any other types of optical beams, such as Bessel beams and Mathieu beams.Hongchang DengYonggui YuanLibo YuanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hongchang Deng Yonggui Yuan Libo Yuan Design, transform and control of optical field in discrete optical system: an example
description	Abstract A discrete optical system can broaden the spatial distribution of the input light through optical coupling in array waveguides, just like diffraction in continuous media. Here, we theoretically demonstrate several kinds of control methods of optical field propagation in a discrete optical system, which is composed of an Airy fiber with two perpendicular arrayed cores. A brief transform mechanism between Gaussian and Airy beam propagation in such a fiber is presented. The wavefront of the output beam from the Airy fiber is actually dependent on the phased arrayed modulation of coupling array cores. Except the optical wavelength changing, we propose two new methods, including fiber length and bending-induced refractive-index changing, to accomplish that modulation. The calculation results show that these new methods are very effective for the Airy phase modulation. By combining these methods and controlling the corresponding parameters, the Gaussian beam, the one-dimension Airy beam, and the two-dimension Airy beam can be obtained by one same Airy fiber. These methods are also generally applicable to the other discrete optical system and can be extended to generate any other types of optical beams, such as Bessel beams and Mathieu beams.
format	article
author	Hongchang Deng Yonggui Yuan Libo Yuan
author_facet	Hongchang Deng Yonggui Yuan Libo Yuan
author_sort	Hongchang Deng
title	Design, transform and control of optical field in discrete optical system: an example
title_short	Design, transform and control of optical field in discrete optical system: an example
title_full	Design, transform and control of optical field in discrete optical system: an example
title_fullStr	Design, transform and control of optical field in discrete optical system: an example
title_full_unstemmed	Design, transform and control of optical field in discrete optical system: an example
title_sort	design, transform and control of optical field in discrete optical system: an example
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9f14f3eb2c8a4ae2a3b93382abfaba98
work_keys_str_mv	AT hongchangdeng designtransformandcontrolofopticalfieldindiscreteopticalsystemanexample AT yongguiyuan designtransformandcontrolofopticalfieldindiscreteopticalsystemanexample AT liboyuan designtransformandcontrolofopticalfieldindiscreteopticalsystemanexample
_version_	1718388721241292800

Design, transform and control of optical field in discrete optical system: an example

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