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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 2 — Feb. 1, 2008
  • pp: 247–254

Impact of transverse spatial-hole burning on beam quality in large-mode-area Yb-doped fibers

Z. Jiang and J. R. Marciante  »View Author Affiliations


JOSA B, Vol. 25, Issue 2, pp. 247-254 (2008)
http://dx.doi.org/10.1364/JOSAB.25.000247


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Abstract

The beam-quality factor of an amplified spontaneous emission source based on a Yb-doped, large-mode-area (LMA), multimode fiber was found to be optimized when the gain became saturated. A model using spatially resolved gain and transverse-mode decomposition of the optical field showed that transverse spatial-hole burning (TSHB) was responsible for the observed behavior. A simplified model without TSHB failed to predict the observed behavior of beam quality. A comparison of both models shows TSHB is also critical for properly modeling beam quality in LMA fiber amplifiers.

© 2008 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.6630) Lasers and laser optics : Superradiance, superfluorescence

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 30, 2007
Revised Manuscript: November 14, 2007
Manuscript Accepted: November 15, 2007
Published: January 30, 2008

Citation
Z. Jiang and J. R. Marciante, "Impact of transverse spatial-hole burning on beam quality in large-mode-area Yb-doped fibers," J. Opt. Soc. Am. B 25, 247-254 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-2-247

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