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Polarization-dependent transverse mode selection in an Yb-doped fiber laser

Polarization-dependent transverse mode selection in an Yb-doped fiber laser
Polarization-dependent transverse mode selection in an Yb-doped fiber laser
A simple technique for selectively generating the fundamental LP01 and the next higher order donut-shaped LP11 mode with vortex phase front in a cladding-pumped few-moded ytterbium-doped fiber laser is reported. Our approach exploits the difference in polarization behavior of individual transverse modes due to transverse variation of birefringence in a few-mode fiber allowing robust mode discrimination through the use of an appropriately aligned intracavity polarizing element. The laser yielded ~36 W of output power for both transverse modes with corresponding slope efficiency of 74% with respect to absorbed pump power and a mode purity of 98% for the donut-shaped LP11 mode.
0146-9592
498-501
Lin, Di
3ef08fd6-1606-4fcb-85ea-323c35d2b82a
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Lin, Di
3ef08fd6-1606-4fcb-85ea-323c35d2b82a
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2

Lin, Di and Clarkson, W.A. (2015) Polarization-dependent transverse mode selection in an Yb-doped fiber laser. Optics Letters, 40 (4), 498-501. (doi:10.1364/OL.40.000498).

Record type: Article

Abstract

A simple technique for selectively generating the fundamental LP01 and the next higher order donut-shaped LP11 mode with vortex phase front in a cladding-pumped few-moded ytterbium-doped fiber laser is reported. Our approach exploits the difference in polarization behavior of individual transverse modes due to transverse variation of birefringence in a few-mode fiber allowing robust mode discrimination through the use of an appropriately aligned intracavity polarizing element. The laser yielded ~36 W of output power for both transverse modes with corresponding slope efficiency of 74% with respect to absorbed pump power and a mode purity of 98% for the donut-shaped LP11 mode.

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More information

Accepted/In Press date: 2 January 2015
Published date: 2015
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 374367
URI: https://eprints.soton.ac.uk/id/eprint/374367
ISSN: 0146-9592
PURE UUID: 63f935f2-9559-4269-ae93-405b44925377

Catalogue record

Date deposited: 16 Feb 2015 10:10
Last modified: 28 Nov 2018 17:31

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Contributors

Author: Di Lin
Author: W.A. Clarkson

University divisions

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