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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. 24, Iss. 8 — Aug. 1, 2007
  • pp: 1669–1676

Design of large-mode-area amplifier fibers resistant to bend-induced distortion

John M. Fini  »View Author Affiliations


JOSA B, Vol. 24, Issue 8, pp. 1669-1676 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001669


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Abstract

As fiber amplifiers and lasers achieve higher power, gain fiber designs are pushing toward extremely large-mode area. In this regime, bend-induced distortion of fiber modes becomes large and can severely impact amplifier performance. Previous results describing bend-induced reduction of effective area are reviewed and extended with a numerical analysis of how bend distortion impacts interaction with the gain. Distortion-resistant designs such as the parabolic fiber are shown to substantially improve gain-interaction indicators as well as all other performance metrics simulated, and are predicted to dramatically outperform step-index fibers.

© 2007 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Fiber and Waveguide Designs

History
Original Manuscript: November 29, 2006
Revised Manuscript: February 8, 2007
Manuscript Accepted: February 9, 2007
Published: July 19, 2007

Citation
John M. Fini, "Design of large-mode-area amplifier fibers resistant to bend-induced distortion," J. Opt. Soc. Am. B 24, 1669-1676 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-8-1669


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