Innovative fiber coating systems based on organic modified ceramics

Kay Schuster; Jens Kobelke; Klaus Rose; Manfred Helbig; Mohammad Zoheidi; Alexander Heinze

doi:10.1117/12.839940

25 February 2010 Innovative fiber coating systems based on organic modified ceramics

Kay Schuster, Jens Kobelke, Klaus Rose, Manfred Helbig, Mohammad Zoheidi, Alexander Heinze

Proceedings Volume 7598, Optical Components and Materials VII; 75980H (2010) https://doi.org/10.1117/12.839940
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

We describe the application of inorganic organic hybrid materials (ORMOCERs) as optical fiber coatings for use in Fiber Bragg Grating sensors and high power transmission fibers. The materials are UV curable, enable a single layer thickness of about 50 μm and show high a high peak temperature stability >300 °C. Regarding the fiber protection the coatings have been investigated using tensile strength measurements before and after temperature load. Best coatings maintain the high tensile strength of 68 N (125 μm fiber) with a Weibull parameter of 182 after a temperature cycling up to 300 °C. For the first time a low refractive index ORMOCER will be presented showing a numerical aperture of 0.47 at a wavelength of 1000 nm on a pure silica fiber. This corresponds to a refractive index of 1.37. The fiber possesses a fiber loss of 18 dB/km at a wavelength of 1000 nm. The fibers have been coated using a gravity as well as pressure technology. The latter possesses extremely minimized die equipment and is therefore well applicable for small coating amounts. The so called dead volume within the coating die is about 1 ml. The overall dead volume is only influenced by the supply pipe and can be reduced down to 5 ml.

Citation Download Citation

Kay Schuster, Jens Kobelke, Klaus Rose, Manfred Helbig, Mohammad Zoheidi, and Alexander Heinze "Innovative fiber coating systems based on organic modified ceramics", Proc. SPIE 7598, Optical Components and Materials VII, 75980H (25 February 2010); https://doi.org/10.1117/12.839940

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