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.
|Title of host publication||OFS2012 22nd international conference on Optical Fiber Sensor|
|Editors||Yanbiao Liao, Wei Jin, David D. Sampson, et al|
|Place of Publication||Bellingham, WA (US)|
|Number of pages||4|
|Publication status||Published - 4 Oct 2012|
|Event||22nd international conference on Optical Fiber Sensors - Beijing, China|
Duration: 14 Oct 2012 → 19 Oct 2012
|Conference||22nd international conference on Optical Fiber Sensors|
|Abbreviated title||OFS 2012|
|Period||14/10/12 → 19/10/12|
Bibliographical noteGraham C. B. Lee ; Kyriacos Kalli ; Charalambos Koutsides ; Michael Komodromos and 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 (October 4, 2012).
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- diffraction grating
- femtosecond laser inscription
- fibre coupler
- fibre end devices
- fibre sensors
- fibre splitter
- Fourier optics