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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 12 — Jun. 9, 2008
  • pp: 8678–8684

Interaction of transverse modes in a single-frequency few-mode fiber amplifier caused by local gain saturation

N. Andermahr and C. Fallnich  »View Author Affiliations

Optics Express, Vol. 16, Issue 12, pp. 8678-8684 (2008)

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We report on the behavior of modal polarization states in a single-frequency, ytterbium-doped, few-mode fiber amplifier. Experimental data show that the polarization of the individual transverse modes depends on the pump power and that the modes tend towards orthogonally polarized states with increasing gain. The observations can be explained by local gain saturation that favors the amplification of differently polarized modes.

© 2008 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(260.5430) Physical optics : Polarization

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 21, 2008
Revised Manuscript: May 23, 2008
Manuscript Accepted: May 23, 2008
Published: May 28, 2008

N. Andermahr and C. Fallnich, "Interaction of transverse modes in a single-frequency few-mode fiber amplifier caused by local gain saturation," Opt. Express 16, 8678-8684 (2008)

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