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.
498-501
Lin, Di
d858c2c7-6eab-49d8-87e7-6b71d9bad013
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
2015
Lin, Di
d858c2c7-6eab-49d8-87e7-6b71d9bad013
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), .
(doi:10.1364/OL.40.000498).
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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Accepted/In Press date: 2 January 2015
Published date: 2015
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 374367
URI: http://eprints.soton.ac.uk/id/eprint/374367
ISSN: 0146-9592
PURE UUID: 63f935f2-9559-4269-ae93-405b44925377
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Date deposited: 16 Feb 2015 10:10
Last modified: 14 Mar 2024 19:06
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Author:
Di Lin
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