4 October 2005 Mechanical cleavage of complex microstructured fibers
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Abstract
If microstructured optical fibers are to find widespread use in photonics technology, they will have to be easily cleavable using mechanical cleavers, since more sophisticated cleaving techniques add complexity. Conventional mechanical cleavers are the preferred laboratory and production tools because they are both simpler to use and more time- and cost-effective compared to techniques such as laser cutting. When designing complex microstructured fibers (MSF) with exciting novel optical characteristics, it is therefore important to favor those geometries that allow high-quality cleavage using standard mechanical cleavers. In this paper, we present an analytical model for fracture propagation during the cleaving process in a complex MSF. The model is based on experimental observations. Three samples of high air-fraction double-clad MSFs were used. Although that they all feature the same structural profiles (but differing in certain geometrical dimensions), they give totally different cleavage patterns. The cleaved surfaces were studied and analyzed. Analysis of the cleaved surfaces allowed to establish a criterion for smooth fracture propagation in a high air-fraction double clad MSF and to suggest a novel design approach for these specific structures.
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Véronique François, Véronique François, Seyed Sadreddin Aboutorabi, Seyed Sadreddin Aboutorabi, } "Mechanical cleavage of complex microstructured fibers", Proc. SPIE 5970, Photonic Applications in Devices and Communication Systems, 597002 (4 October 2005); doi: 10.1117/12.628618; https://doi.org/10.1117/12.628618
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