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15 March 2019 Modification of optical fiber’s geometry with an excimer laser
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Proceedings Volume 11045, Optical Fibers and Their Applications 2018; 1104503 (2019) https://doi.org/10.1117/12.2519355
Event: 18th Conference on Optical Fibers and Their Applications, 2018, Naleczow, Poland
Abstract
In this paper we present the preliminary results of UV excimer laser application for optical fibers micromachining. We used a high power KrF laser to perform pulsed laser ablation of glass material at the end of single-mode optical fibers. By removing parts of the cladding we were able to change the light propagation conditions and therefore observe modified output beam distributions. The studies were undertaken for near infrared wavelength equal to 1550 nm. Based on the preliminary results we were able to determine the basic parameters influencing the modification of optical fibers’ geometry and the direction of further improvements to the micromachining setup. Although the focused spot was too large and energy density was too high to perform precise modifications of fibers’ geometry, we managed to prepare samples that indicate usability of proposed approach to micromachining. Obtained results of output beam distribution from modified samples were similar to the ones calculated by means of numerical simulations. By producing well characterized and repeatable micromachined structures we will be able to provide a new sensing platform for integrated measurements especially designed for applications in biological and chemical sensing.
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Michal Dudek, Pawel Marć, and Leszek R. Jaroszewicz "Modification of optical fiber’s geometry with an excimer laser", Proc. SPIE 11045, Optical Fibers and Their Applications 2018, 1104503 (15 March 2019); https://doi.org/10.1117/12.2519355
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