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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 15 — Jul. 19, 2010
  • pp: 15408–15418

Extremely large-mode-area photonic crystal fibre with low bending loss

Marek Napierała, Tomasz Nasiłowski, Elżbieta Bereś-Pawlik, Francis Berghmans, Jan Wójcik, and Hugo Thienpont  »View Author Affiliations


Optics Express, Vol. 18, Issue 15, pp. 15408-15418 (2010)
http://dx.doi.org/10.1364/OE.18.015408


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Abstract

We report on the design of a novel flexible very large mode area photonic crystal fibre for short pulse high peak power fibre laser and beam delivery applications. This fibre has an extremely large mode area exceeding 2500 µm2 when kept straight and over 1000 µm2 when bent over a 10 cm radius at a wavelength of 1064 nm. In addition our fibre exhibits very small fundamental mode bending loss below 10−2 dB/m. The large difference between the propagation loss levels of fundamental and higher order modes forces efficient single-mode guidance in the fibre core while bent. This allows using the fibre to build compact high power laser systems. The paper further explores the major features of this fibre including: the dependence of the mode field area on the fibre core shape, the influence of the bending radius and of the bending direction as well as the impact of manufacturing tolerances on the fibre specifications.

© 2010 OSA

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2400) Fiber optics and optical communications : Fiber properties
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 1, 2010
Revised Manuscript: April 15, 2010
Manuscript Accepted: May 3, 2010
Published: July 6, 2010

Citation
Marek Napierała, Tomasz Nasiłowski, Elżbieta Bereś-Pawlik, Francis Berghmans, Jan Wójcik, and Hugo Thienpont, "Extremely large-mode-area photonic crystal fibre with low bending loss," Opt. Express 18, 15408-15418 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-15-15408


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References

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