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.
| Language | English |
|---|---|
| Title of host publication | IEEE 11th International Conference on Group IV Photonics (GFP) |
| Place of Publication | Piscataway, New Jersey, United States |
| Publisher | IEEE |
| Pages | 191-192 |
| Number of pages | 2 |
| ISBN (Print) | 9781479922833 |
| DOIs | |
| Publication status | Published - Aug 2014 |
| Event | 11th International Conference on Group IV Photonics, GFP 2014 - Paris, France Duration: 27 Aug 2014 → 29 Aug 2014 |
Conference
| Conference | 11th International Conference on Group IV Photonics, GFP 2014 |
|---|---|
| Country | France |
| City | Paris |
| Period | 27/08/14 → 29/08/14 |
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Keywords
- orbital angular momentum
- OAM
- light beams
- whispering Gallery mode
- WGM
- optical beams
- angular grating
- microring resonator
- optical vortex beams
Cite this
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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 proceeding › Conference contribution book
TY - GEN
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.
PY - 2014/8
Y1 - 2014/8
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.
KW - orbital angular momentum
KW - OAM
KW - light beams
KW - whispering Gallery mode
KW - WGM
KW - optical beams
KW - angular grating
KW - microring resonator
KW - optical vortex beams
UR - http://www.scopus.com/inward/record.url?scp=84914167690&partnerID=8YFLogxK
UR - http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6948377
U2 - 10.1109/Group4.2014.6961985
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 -