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Proceedings Paper

Specialty fibers for high power lasers and amplifiers
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Paper Abstract

This paper reviews our recent work on novel large-mode area fibers for high power lasers and amplifiers. An ultra-low- NA fiber and single-trench fiber have been proposed for mode area scaling of the fundamental mode. In case of single-trench fiber design, resonant coupling of the higher order modes has been exploited to achieve effective single mode operation in fiber with large effective mode area. Our proposed fiber designs are easy to fabricate using conventional low-loss fiber fabrication techniques, and moreover, being all solid structure, they ensure easy cleaving and splicing. A monolithic and compact high power fiber laser/amplifier device with a good output beam quality can be achieved using Single-trench fiber design.

Paper Details

Date Published: 7 May 2015
PDF: 6 pages
Proc. SPIE 9507, Micro-structured and Specialty Optical Fibres IV, 95070F (7 May 2015); doi: 10.1117/12.2185165
Show Author Affiliations
Jayanta K. Sahu, Univ. of Southampton (United Kingdom)
Deepak Jain, Univ. of Southampton (United Kingdom)
Yongmin Jung, Univ. of Southampton (United Kingdom)

Published in SPIE Proceedings Vol. 9507:
Micro-structured and Specialty Optical Fibres IV
Kyriacos Kalli; Jiri Kanka; Alexis Mendez, Editor(s)

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