All-fiber fused coupler for stable generation of radially and azimuthally polarized beams
All-fiber fused coupler for stable generation of radially and azimuthally polarized beams
The stable generation of TE01 and TM01 beams is demonstrated through a novel all-fiber fused coupler fabricated from a standard single mode fiber (SMF) and a custom air-core fiber. The fundamental mode in the SMF is directly coupled to the TM01 or TE01 mode by appropriately phase matching the modes in the fibers resulting in efficiency of ~67% and ~85%, and polarization purity of 70% and 82%, respectively. The phase matching is achieved through pre-tapering the SMF with precise control of the tapering ratio. The air-core fiber ensures selective excitation of the desired modes, thereby improving propagation stability and polarization quality of the TE01 and TM01 beams.
31-34
Pidishety, Shankar
b693fa46-8454-4577-8166-6a8ae2d3f19c
Srinivasan, Balaji
b04f794d-be0c-41d1-98e6-791458fb2eba
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
1 January 2017
Pidishety, Shankar
b693fa46-8454-4577-8166-6a8ae2d3f19c
Srinivasan, Balaji
b04f794d-be0c-41d1-98e6-791458fb2eba
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Pidishety, Shankar, Srinivasan, Balaji and Brambilla, Gilberto
(2017)
All-fiber fused coupler for stable generation of radially and azimuthally polarized beams.
IEEE Photonics Technology Letters, 29 (1), .
(doi:10.1109/LPT.2016.2625421).
Abstract
The stable generation of TE01 and TM01 beams is demonstrated through a novel all-fiber fused coupler fabricated from a standard single mode fiber (SMF) and a custom air-core fiber. The fundamental mode in the SMF is directly coupled to the TM01 or TE01 mode by appropriately phase matching the modes in the fibers resulting in efficiency of ~67% and ~85%, and polarization purity of 70% and 82%, respectively. The phase matching is achieved through pre-tapering the SMF with precise control of the tapering ratio. The air-core fiber ensures selective excitation of the desired modes, thereby improving propagation stability and polarization quality of the TE01 and TM01 beams.
Text
TE-TM paper_for PTL_Final.doc
- Accepted Manuscript
More information
Accepted/In Press date: 28 October 2016
e-pub ahead of print date: 4 November 2016
Published date: 1 January 2017
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 402231
URI: http://eprints.soton.ac.uk/id/eprint/402231
ISSN: 1041-1135
PURE UUID: db4fcde8-d366-446b-ae42-2e326f4a985f
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Date deposited: 03 Nov 2016 15:19
Last modified: 16 Mar 2024 03:21
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Contributors
Author:
Shankar Pidishety
Author:
Balaji Srinivasan
Author:
Gilberto Brambilla
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