Measuring the angular emission of optical vortex beams from integrated devices

Lifeng Chen, Jiangbo Zhu, Michael J. Strain, Laura Meriggi, Martin L. Garcia, Kenan Cicek, Huanlu Li, Xinlun Cai, Marc Sorel, Siyuan Yu

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

Orbital angular momentum (OAM) represents an additional degree of freedom of a light beam, to be added to the standard ones (e.g. polarization, wavelength) [1-2]. Previously, we have demonstrated an integrated device for OAM generation, in which the Whispering Gallery mode (WGM) of the micro-ring resonator to a propagating OAM mode by using an angular grating embedded within the resonator structure [3]. This integrated approach allows compact device footprint and OAM mode order selectivity with injection wavelength, which is highly desirable for telecommunications systems. To bring OAM closer to actual system implementations, several groups around the world are working on the development of optical fibres for propagation of multiplexed OAM modes. In order to achieve efficient coupling between OAM beams and OAM fibres, it is important to obtain the information of the divergence angle of the OAM beams which should be compatible with the N.A. of the fibres. In this work, we use Fourier image inspection [4] of the emission of the device to analyse the divergence angles of the OAM beams.

LanguageEnglish
Title of host publicationIEEE 11th International Conference on Group IV Photonics (GFP)
Place of PublicationPiscataway, New Jersey, United States
PublisherIEEE
Pages191-192
Number of pages2
ISBN (Print)9781479922833
DOIs
Publication statusPublished - Aug 2014
Event11th International Conference on Group IV Photonics, GFP 2014 - Paris, France
Duration: 27 Aug 201429 Aug 2014

Conference

Conference11th International Conference on Group IV Photonics, GFP 2014
CountryFrance
CityParis
Period27/08/1429/08/14

Fingerprint

Angular momentum
Vortex flow
Resonators
Whispering gallery modes
Wavelength
Telecommunication systems
Fibers
Degrees of freedom (mechanics)
Optical fibers
Inspection
Polarization

Keywords

  • orbital angular momentum
  • OAM
  • light beams
  • whispering Gallery mode
  • WGM
  • optical beams
  • angular grating
  • microring resonator
  • optical vortex beams

Cite this

Chen, L., Zhu, J., Strain, M. J., Meriggi, L., Garcia, M. L., Cicek, K., ... Yu, S. (2014). Measuring the angular emission of optical vortex beams from integrated devices. In IEEE 11th International Conference on Group IV Photonics (GFP) (pp. 191-192). [6961985] Piscataway, New Jersey, United States: IEEE. https://doi.org/10.1109/Group4.2014.6961985
Chen, Lifeng ; Zhu, Jiangbo ; Strain, Michael J. ; Meriggi, Laura ; Garcia, Martin L. ; Cicek, Kenan ; Li, Huanlu ; Cai, Xinlun ; Sorel, Marc ; Yu, Siyuan. / Measuring the angular emission of optical vortex beams from integrated devices. IEEE 11th International Conference on Group IV Photonics (GFP). Piscataway, New Jersey, United States : IEEE, 2014. pp. 191-192
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note = "{\circledC} 2014 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.",
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Chen, L, Zhu, J, Strain, MJ, Meriggi, L, Garcia, ML, Cicek, K, Li, H, Cai, X, Sorel, M & Yu, S 2014, Measuring the angular emission of optical vortex beams from integrated devices. in IEEE 11th International Conference on Group IV Photonics (GFP)., 6961985, IEEE, Piscataway, New Jersey, United States, pp. 191-192, 11th International Conference on Group IV Photonics, GFP 2014, Paris, France, 27/08/14. https://doi.org/10.1109/Group4.2014.6961985

Measuring the angular emission of optical vortex beams from integrated devices. / Chen, Lifeng; Zhu, Jiangbo; Strain, Michael J.; Meriggi, Laura; Garcia, Martin L.; Cicek, Kenan; Li, Huanlu; Cai, Xinlun; Sorel, Marc; Yu, Siyuan.

IEEE 11th International Conference on Group IV Photonics (GFP). Piscataway, New Jersey, United States : IEEE, 2014. p. 191-192 6961985.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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T1 - Measuring the angular emission of optical vortex beams from integrated devices

AU - Chen, Lifeng

AU - Zhu, Jiangbo

AU - Strain, Michael J.

AU - Meriggi, Laura

AU - Garcia, Martin L.

AU - Cicek, Kenan

AU - Li, Huanlu

AU - Cai, Xinlun

AU - Sorel, Marc

AU - Yu, Siyuan

N1 - © 2014 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.

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N2 - Orbital angular momentum (OAM) represents an additional degree of freedom of a light beam, to be added to the standard ones (e.g. polarization, wavelength) [1-2]. Previously, we have demonstrated an integrated device for OAM generation, in which the Whispering Gallery mode (WGM) of the micro-ring resonator to a propagating OAM mode by using an angular grating embedded within the resonator structure [3]. This integrated approach allows compact device footprint and OAM mode order selectivity with injection wavelength, which is highly desirable for telecommunications systems. To bring OAM closer to actual system implementations, several groups around the world are working on the development of optical fibres for propagation of multiplexed OAM modes. In order to achieve efficient coupling between OAM beams and OAM fibres, it is important to obtain the information of the divergence angle of the OAM beams which should be compatible with the N.A. of the fibres. In this work, we use Fourier image inspection [4] of the emission of the device to analyse the divergence angles of the OAM beams.

AB - Orbital angular momentum (OAM) represents an additional degree of freedom of a light beam, to be added to the standard ones (e.g. polarization, wavelength) [1-2]. Previously, we have demonstrated an integrated device for OAM generation, in which the Whispering Gallery mode (WGM) of the micro-ring resonator to a propagating OAM mode by using an angular grating embedded within the resonator structure [3]. This integrated approach allows compact device footprint and OAM mode order selectivity with injection wavelength, which is highly desirable for telecommunications systems. To bring OAM closer to actual system implementations, several groups around the world are working on the development of optical fibres for propagation of multiplexed OAM modes. In order to achieve efficient coupling between OAM beams and OAM fibres, it is important to obtain the information of the divergence angle of the OAM beams which should be compatible with the N.A. of the fibres. In this work, we use Fourier image inspection [4] of the emission of the device to analyse the divergence angles of the OAM beams.

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KW - WGM

KW - optical beams

KW - angular grating

KW - microring resonator

KW - optical vortex beams

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DO - 10.1109/Group4.2014.6961985

M3 - Conference contribution book

SN - 9781479922833

SP - 191

EP - 192

BT - IEEE 11th International Conference on Group IV Photonics (GFP)

PB - IEEE

CY - Piscataway, New Jersey, United States

ER -

Chen L, Zhu J, Strain MJ, Meriggi L, Garcia ML, Cicek K et al. Measuring the angular emission of optical vortex beams from integrated devices. In IEEE 11th International Conference on Group IV Photonics (GFP). Piscataway, New Jersey, United States: IEEE. 2014. p. 191-192. 6961985 https://doi.org/10.1109/Group4.2014.6961985