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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 16 — Aug. 7, 2006
  • pp: 7312–7318

A mechanical criterion for the design of readily cleavable microstructured optical fibers

Véronique François and Seyed Sadreddin Aboutorabi  »View Author Affiliations

Optics Express, Vol. 14, Issue 16, pp. 7312-7318 (2006)

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Some complex microstructured fibers (MSFs) are well known to produce poor-quality cleaves or even to break at cleavage. But to find widespread use in photonics technology, MSFs will have to be easily cleavable using mechanical cleavers, since more sophisticated techniques add complexity. In this paper, the very different, yet reproducible cleavage patterns of three high air-fraction, double-clad microstructured fibers are analyzed. Fracture faces reveal the fracture propagation paths and provide measurements of the fracture lengths in the intercapillary bridges. These lengths prove to be always shorter than the critical fracture length predicted by fracture mechanics. A criterion based on critical fracture length is thus proposed to design cleavage-robust MSFs.

© 2006 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(160.2290) Materials : Fiber materials

ToC Category:
Photonic Crystal Fibers

Original Manuscript: June 13, 2006
Revised Manuscript: July 27, 2006
Manuscript Accepted: July 27, 2006
Published: August 7, 2006

Véronique François and Seyed Sadreddin Aboutorabi, "A mechanical criterion for the design of readily cleavable microstructured optical fibers," Opt. Express 14, 7312-7318 (2006)

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