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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 20 — Oct. 7, 2013
  • pp: 23250–23260

Top-hat beam output of a single-mode microstructured optical fiber: Impact of core index depression

Constance Valentin, Pierre Calvet, Yves Quiquempois, Géraud Bouwmans, Laurent Bigot, Quentin Coulombier, Marc Douay, Karen Delplace, Arnaud Mussot, and Emmanuel Hugonnot  »View Author Affiliations


Optics Express, Vol. 21, Issue 20, pp. 23250-23260 (2013)
http://dx.doi.org/10.1364/OE.21.023250


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Abstract

A new strategy to obtain a single-mode fiber with a flattened intensity profile distribution is presented. It is based on the use of an OVD-made high index ring deposited on a silica rod having a refractive index slightly lower than the silica used for the microstructured cladding. Using this strategy, we realized the first single-mode fiber with a quasi-perfect top-hat intensity profile around 1 µm. Numerical studies clearly demonstrate the advantage of using a core index depression to insure the single-mode operation of the fiber at the working wavelength.

© 2013 OSA

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2400) Fiber optics and optical communications : Fiber properties
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 3, 2013
Revised Manuscript: August 1, 2013
Manuscript Accepted: August 5, 2013
Published: September 24, 2013

Citation
Constance Valentin, Pierre Calvet, Yves Quiquempois, Géraud Bouwmans, Laurent Bigot, Quentin Coulombier, Marc Douay, Karen Delplace, Arnaud Mussot, and Emmanuel Hugonnot, "Top-hat beam output of a single-mode microstructured optical fiber: Impact of core index depression," Opt. Express 21, 23250-23260 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-20-23250


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