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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 1 — Jan. 9, 2006
  • pp: 69–81

Bend-resistant design of conventional and microstructure fibers with very large mode area

John M. Fini  »View Author Affiliations

Optics Express, Vol. 14, Issue 1, pp. 69-81 (2006)

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Achieving very large mode area is a key goal in current research on microstructure and solid fibers for high power amplifiers and lasers. One particular design regime of recent interest has effective area over 1000 square microns and has effectively-single-mode operation ensured by bend losses of the higher-order modes. Simulations show that these fibers are extremely prone to bend-induced distortion and reduction in mode area. The calculated area reduction would significantly impact nonlinear impairments for bend radii relevant to any reasonable spooled package, and can be over 50 percent for bend radii tighter than 10cm. The parabolic-profile design has a natural immunity to bend-induced mode distortion and contraction, and shows superior performance in simulated fair comparisons with other fiber families, including microstructure fibers.

© 2006 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
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Fiber Optics and Optical Communications

Virtual Issues
Vol. 1, Iss. 2 Virtual Journal for Biomedical Optics

John M. Fini, "Bend-resistant design of conventional and microstructure fibers with very large mode area," Opt. Express 14, 69-81 (2006)

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