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Simple scheme for active mode selection in a multimode fibre oscillator

Simple scheme for active mode selection in a multimode fibre oscillator
Simple scheme for active mode selection in a multimode fibre oscillator
Operation of fibre lasers on individual higher order transverse modes has many attractions from a power scaling perspective. These include a higher threshold for unwanted nonlinear loss processes, reduced sensitivity to mode skew [1], as well as the prospect of improved energy extraction in pulsed systems. Moreover, it has also been shown that in some laser processing applications the use of doughnut-shaped beams or beams with a dynamically adaptable transverse profile can yield substantially higher processing speeds. However techniques for selecting individual higher order modes in multimode fibre oscillators are often quite difficult to implement and lack the flexibility to switch between modes to suit the application.
Daniel, J.M.O.
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Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Daniel, J.M.O.
6196e732-cd6c-43a7-bc9f-bc4f99e72c23
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2

Daniel, J.M.O. and Clarkson, W.A. (2012) Simple scheme for active mode selection in a multimode fibre oscillator. 5th EPS-QEOD Europhoton '12, , Stockholm, Sweden. 26 - 31 Aug 2012. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Operation of fibre lasers on individual higher order transverse modes has many attractions from a power scaling perspective. These include a higher threshold for unwanted nonlinear loss processes, reduced sensitivity to mode skew [1], as well as the prospect of improved energy extraction in pulsed systems. Moreover, it has also been shown that in some laser processing applications the use of doughnut-shaped beams or beams with a dynamically adaptable transverse profile can yield substantially higher processing speeds. However techniques for selecting individual higher order modes in multimode fibre oscillators are often quite difficult to implement and lack the flexibility to switch between modes to suit the application.

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More information

e-pub ahead of print date: August 2012
Venue - Dates: 5th EPS-QEOD Europhoton '12, , Stockholm, Sweden, 2012-08-26 - 2012-08-31
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 368315
URI: http://eprints.soton.ac.uk/id/eprint/368315
PURE UUID: dc94d242-1e6d-48b1-86b6-c23aa72da167

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Date deposited: 06 Sep 2014 16:00
Last modified: 14 Mar 2024 17:45

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Contributors

Author: J.M.O. Daniel
Author: W.A. Clarkson

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