Extending single mode performance of all-solid large-mode-area single trench fiber
Extending single mode performance of all-solid large-mode-area single trench fiber
We report a novel "single trench fiber" design for mode area scaling of the fundamental mode while offering effective single mode operation for a compact fiber laser device. This fiber design allows very high suppression of the higher order modes by offering high loss and power delocalization. It has the advantages of low cost and easy fabrication thanks to all solid fiber design, cylindrical symmetry, and higher refractive index of core as that of the cladding. A Yb-doped single trench fiber with a 40µm core diameter has been fabricated from modified chemical vapor deposition process in conjunction with solution-doping offering an effective mode area of as large as ~1,000µm2 at 1060nm for the bend radius of 20cm. Detailed characterizations confirm a robust single mode behavior of the fiber. Comparative analysis with other fiber designs shows significant performance enhancement of effective single mode operation suitable for fiber laser applications.
31078-31091
Jain, D.
787e5045-8862-46ba-b15e-82c2fe60495f
Jung, Y.
6685e51e-be47-4c96-8c4b-65aee3b5126d
Núñez-Velázquez, M.
3c102956-ac51-4d02-9fe6-6628557cfbff
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
2014
Jain, D.
787e5045-8862-46ba-b15e-82c2fe60495f
Jung, Y.
6685e51e-be47-4c96-8c4b-65aee3b5126d
Núñez-Velázquez, M.
3c102956-ac51-4d02-9fe6-6628557cfbff
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Jain, D., Jung, Y., Núñez-Velázquez, M. and Sahu, J.K.
(2014)
Extending single mode performance of all-solid large-mode-area single trench fiber.
Optics Express, 22 (25), .
(doi:10.1364/OE.22.031078).
Abstract
We report a novel "single trench fiber" design for mode area scaling of the fundamental mode while offering effective single mode operation for a compact fiber laser device. This fiber design allows very high suppression of the higher order modes by offering high loss and power delocalization. It has the advantages of low cost and easy fabrication thanks to all solid fiber design, cylindrical symmetry, and higher refractive index of core as that of the cladding. A Yb-doped single trench fiber with a 40µm core diameter has been fabricated from modified chemical vapor deposition process in conjunction with solution-doping offering an effective mode area of as large as ~1,000µm2 at 1060nm for the bend radius of 20cm. Detailed characterizations confirm a robust single mode behavior of the fiber. Comparative analysis with other fiber designs shows significant performance enhancement of effective single mode operation suitable for fiber laser applications.
More information
Accepted/In Press date: 14 November 2014
Published date: 2014
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 375070
URI: http://eprints.soton.ac.uk/id/eprint/375070
ISSN: 1094-4087
PURE UUID: 30e64757-c070-4b31-a1d7-0d29502998b5
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Date deposited: 11 Mar 2015 12:49
Last modified: 15 Mar 2024 03:31
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