期刊
OPTICAL MATERIALS EXPRESS
卷 11, 期 2, 页码 345-354出版社
OPTICAL SOC AMER
DOI: 10.1364/OME.414973
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资金
- Det Frie Forskningsrad [8022-00091B]
- Lundbeckfonden [R276-2018-869]
This study successfully fabricated a multimaterial optical fiber based on two different grades of polymers with excellent heat stability, which represents a significant advancement for the polymer optical fiber community.
In this work, we report the fabrication of an all-polymer multimaterial optical fiber based on two different grades of cyclo-olefin polymers (known as Zeonex) and the high-performance thermoplastic polysulfone (PSU) with glass transition temperature (T-g) of 189 degrees C. The core/cladding structure using the Zeonex polymers (E48R/480R, respectively) was developed using a co-extrusion method followed by a rod-in-tube approach to form the final preform. The fiber materials were characterized in terms of their T-g, viscosity as well as refractive index profiles. The final preform was thermally drawn down to a fiber with -300 gm and similar to 70 mu m total and core diameter, respectively. We thermally characterized and compared our step-index fiber with a commercially available polymer (Cytop) as well as a purely Zeonex single-mode step-index fiber. The proposed multimaterial fiber exhibited stable operation at temperatures as high as 180 degrees C being similar to 35 degrees C higher than any polymer fiber reported so far to the best of our knowledge. Therefore, we believe that our results constitute a significant step forward for the polymer optical fiber community making the proposed polymer multimaterial fiber an efficient route towards truly heat-resistant applications. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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