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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9896–9907

Cut-off analysis of 19-cell Yb-doped double-cladding rod-type photonic crystal fibers

F. Poli, E. Coscelli, T. T. Alkeskjold, D. Passaro, A. Cucinotta, L. Leick, J. Broeng, and S. Selleri  »View Author Affiliations


Optics Express, Vol. 19, Issue 10, pp. 9896-9907 (2011)
http://dx.doi.org/10.1364/OE.19.009896


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Abstract

Yb-doped double-cladding large mode area rod-type photonic crystal fibers are a key component for power scaling in fiber laser systems. Recently, designs with 19-cell core defect, that is with 19 missing air-holes in the center of the photonic crystal cladding, have been proposed, with reported core diameter up to 100 μm. In this paper an analysis of the cut-off wavelength of the first high-order mode in such low-NA fibers is reported, accounting for different approaches for the definition of the cladding effective index. Results have shown that taking into account the finite fiber cross-section and considering the first cladding mode of the actual fiber is mandatory to obtain a correct estimate of the cut-off wavelength.

© 2011 OSA

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2310) Fiber optics and optical communications : Fiber optics
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 4, 2011
Revised Manuscript: April 20, 2011
Manuscript Accepted: April 25, 2011
Published: May 5, 2011

Citation
F. Poli, E. Coscelli, T. T. Alkeskjold, D. Passaro, A. Cucinotta, L. Leick, J. Broeng, and S. Selleri, "Cut-off analysis of 19-cell Yb-doped double-cladding rod-type photonic crystal fibers," Opt. Express 19, 9896-9907 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-10-9896


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