Pixelated-core large pitch optical fibre design

High power fibre laser system is playing an increasingly important role in today’s industry market. However, further power scaling of it is limited by nonlinear effects and mode instability which occurs at high power intensity. Currently the most effective mitigation strategy is to scale the mode fi...

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Bibliographic Details
Main Author:	Guo, Mingzhe
Other Authors:	Shum Ping
Format:	Student Research Poster
Language:	English
Published:	2015
Subjects:	Optical fibre High power fibre lasers
Online Access:	https://hdl.handle.net/10356/105065 http://hdl.handle.net/10220/25904
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Institution:	Nanyang Technological University
Language:	English

id	sg-ntu-dr.10356-105065
record_format	dspace
spelling	sg-ntu-dr.10356-1050652020-09-27T20:29:58Z Pixelated-core large pitch optical fibre design Guo, Mingzhe Shum Ping School of Electrical and Electronic Engineering Optical fibre High power fibre lasers High power fibre laser system is playing an increasingly important role in today’s industry market. However, further power scaling of it is limited by nonlinear effects and mode instability which occurs at high power intensity. Currently the most effective mitigation strategy is to scale the mode field area, so as to create a dramatic reduction of the guided intensity. However, this will introduce higher order modes (HOMs) and increase the bending loss of the fibre. In this project, a pixelated-core large pitch fibre (LPF) was designed, which has a hexagonal core with Erbium-Ytterbium co-doped filaments. With this design, mode instability at high power level can be avoided, HOMs can be delocalized and bending loss can be suppressed by almost two orders of magnitude. [1st Award] 2015-06-16T04:00:50Z 2019-12-06T21:45:28Z 2015-06-16T04:00:50Z 2019-12-06T21:45:28Z 2015 2015 Student Research Poster Guo, M. (2015, March). Pixelated-core large pitch optical fibre design. Presented at Discover URECA @ NTU poster exhibition and competition, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/105065 http://hdl.handle.net/10220/25904 en © 2015 The Author(s). application/pdf
institution	Nanyang Technological University
building	NTU Library
country	Singapore
collection	DR-NTU
language	English
topic	Optical fibre High power fibre lasers
spellingShingle	Optical fibre High power fibre lasers Guo, Mingzhe Pixelated-core large pitch optical fibre design
description	High power fibre laser system is playing an increasingly important role in today’s industry market. However, further power scaling of it is limited by nonlinear effects and mode instability which occurs at high power intensity. Currently the most effective mitigation strategy is to scale the mode field area, so as to create a dramatic reduction of the guided intensity. However, this will introduce higher order modes (HOMs) and increase the bending loss of the fibre. In this project, a pixelated-core large pitch fibre (LPF) was designed, which has a hexagonal core with Erbium-Ytterbium co-doped filaments. With this design, mode instability at high power level can be avoided, HOMs can be delocalized and bending loss can be suppressed by almost two orders of magnitude. [1st Award]
author2	Shum Ping
author_facet	Shum Ping Guo, Mingzhe
format	Student Research Poster
author	Guo, Mingzhe
author_sort	Guo, Mingzhe
title	Pixelated-core large pitch optical fibre design
title_short	Pixelated-core large pitch optical fibre design
title_full	Pixelated-core large pitch optical fibre design
title_fullStr	Pixelated-core large pitch optical fibre design
title_full_unstemmed	Pixelated-core large pitch optical fibre design
title_sort	pixelated-core large pitch optical fibre design
publishDate	2015
url	https://hdl.handle.net/10356/105065 http://hdl.handle.net/10220/25904
_version_	1681058700160139264

Pixelated-core large pitch optical fibre design

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