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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 12 — Jun. 6, 2011
  • pp: 11318–11329

Mode competition in high power fiber amplifiers

Arlee V. Smith and Jesse J. Smith  »View Author Affiliations

Optics Express, Vol. 19, Issue 12, pp. 11318-11329 (2011)

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Using a beam propagation model of Yb3+ doped, CW fiber amplifiers we show that gain saturation by a strong fundamental mode significantly suppresses the growth of higher order modes with parallel polarization, but enhances the growth of higher order modes with perpendicular polarization. We quantify this effect in straight and bent fibers, with full core or restricted area doping.

© 2011 OSA

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 11, 2011
Revised Manuscript: May 17, 2011
Manuscript Accepted: May 18, 2011
Published: May 25, 2011

Arlee V. Smith and Jesse J. Smith, "Mode competition in high power fiber amplifiers," Opt. Express 19, 11318-11329 (2011)

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