Yb-doped large-pitch fibres: effective single-mode operation based on higher-order mode delocalisation

Jens Limpert; Fabian Stutzki; Florian Jansen; Hans-Jürgen Otto; Tino Eidam; Cesar Jauregui; Andreas Tünnermann

doi:10.1038/lsa.2012.8

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Yb-doped large-pitch fibres: effective single-mode operation based on higher-order mode delocalisation

Original Article

- Yb-doped large-pitch fibres: effective single-mode operation based on higher-order mode delocalisation
- Light: Science & Applications Vol. 1, Issue 1, (2012)
- Affiliations：
  
  1.Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universität Jena, 07745 Jena, Germany
  2.Helmholtz Institute Jena, 07743 Jena, Germany
  3.Fraunhofer Institute for Applied Optics and Precision Engineering, 07745 Jena, Germany
- Author bio：
  
  Professor A Tünnermann, Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University Jena, Albert-Einstein-Str. 15, 07745 Jena, Germany E-mail: andreas.tuennermann@iof.fraunhofer.de
  Professor J Limpert, Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University Jena, Albert-Einstein-Str. 15, 07745 Jena, Germany E-mail: jens.limpert@uni-jena.de
- Funds：
- DOI：10.1038/lsa.2012.8
  CLC：
- Published：2012-03，
  
  Published Online：27 April 2012，
  
  Received：16 February 2012，
  
  Accepted：25 March 2012
- Accepted：
Scan QR Code
Limpert, J. et al. Yb-doped large-pitch fibres: effective single-mode operation based on higher-order mode delocalisation. Light: Science & Applications, 1, e8 (2012).
DOI：

Limpert, J. et al. Yb-doped large-pitch fibres: effective single-mode operation based on higher-order mode delocalisation. Light: Science & Applications, 1, e8 (2012). DOI： 10.1038/lsa.2012.8.

摘要

Abstract

Rare earth-doped fibres are a diode-pumped

solid-state laser architecture that is highly scalable in average power. The performance of pulsed fibre laser systems is restricted due to nonlinear effects. Hence

fibre designs that allow for very large mode areas at high average powers with diffraction-limited beam quality are of enormous interest. Ytterbium-doped

rod-type

large-pitch fibres (LPF) enable extreme fibre dimensions

i.e.

effective single-mode fibres with mode sizes exceeding 100 times the wavelength of the guided radiation

by exploiting the novel concept of delocalisation of higher-order transverse modes. The non-resonant nature of the operating principle makes LPF suitable for high power extraction. This design allows for an unparalleled level of performance in pulsed fibre lasers.

关键词

Keywords

higher-order mode delocalisationhigh-power fibre lasers and amplifiersphotonic-crystal fibrevery large mode area

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