Mechanical and optical behavior of index guiding photonic crystal fibers (PCF)

Jens Kobelke; Kirsten Gerth; Johannes Kirchhof; Kay Schuster; Klaus Moerl; Claudia Aichele

doi:10.1117/12.527718

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9 July 2004 Mechanical and optical behavior of index guiding photonic crystal fibers (PCF)

Jens Kobelke; Kirsten Gerth; Johannes Kirchhof; Kay Schuster; Klaus Moerl; Claudia Aichele

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Proceedings Volume 5360, Photonic Crystal Materials and Devices II; (2004) https://doi.org/10.1117/12.527718
Event: Integrated Optoelectronic Devices 2004, 2004, San Jose, CA, United States

Abstract

The optical loss behavior of index guiding PC fibers made from high purity silica, was investigated with regard to the preform preparation steps and drawing procedure. Loss effects in the 1.4 µm region are caused mostly by incorporation of hydroxide groups during PC preform preparation. Typical sources are flame heat treatment procedures. However, hydroxide based absorption by water permeation into the holey structure was not observed, not even by storage in humid atmosphere over days. PCFs show additional NIR attenuation, possibly caused by drawing induced atomic defects in the pure silica material. By advanced PC preform preparation the minimum attentuation in the NIR range can be depressed down to 2.9 dB/km at 1.3 μm. PCFs have a reduced tensile strength in comparison with compact silica fibers. The mechanical stability increases with the cross section area of the solid outer cladding. This resembles the behavior of single capillary fibers without inner holey or cobweb structure. The tensile strength of PCFs decreases after a few days of hole contamination with condensed water.

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Jens Kobelke, Kirsten Gerth, Johannes Kirchhof, Kay Schuster, Klaus Moerl, and Claudia Aichele "Mechanical and optical behavior of index guiding photonic crystal fibers (PCF)", Proc. SPIE 5360, Photonic Crystal Materials and Devices II, (9 July 2004); doi: 10.1117/12.527718; https://doi.org/10.1117/12.527718

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