17 October 2012 Femtosecond laser microstructuring through optical fibre end faces: inscription of surface gratings and sub-surface splitters
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842111 (2012) https://doi.org/10.1117/12.968395
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
We present the results of femtosecond laser microstructuring of optical fibres by direct access of the fibre end face, both at the surface and several hundred microns into the fibre, to realise one- and two-dimensional grating structures and optical fibre splitters, respectively. We show the versatility of this simple but effective inscription method, where we demonstrate classic multiple slit diffraction patterns and show the potential for coarse wavelength division multiplexing for sensor signals. A key advantage for the fibre splitter is that the inscription method avoids the use of oil immersion that compensate for the fibre curvature in the standard side writing method.
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Graham C. B. Lee, Kyriacos Kalli, Charalambos Koutsides, Michael Komodromos, Kate Sugden, "Femtosecond laser microstructuring through optical fibre end faces: inscription of surface gratings and sub-surface splitters", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842111 (17 October 2012); doi: 10.1117/12.968395; https://doi.org/10.1117/12.968395
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