Femtosecond laser inscribed phase masks for fibre Bragg grating sensor inscription

Graham C. B. Lee; Kyriacos Kalli; Charalambos Koutsides; Zhijun Yan; Adedotun Adebayo; Michael Komodromos; Kate Sugden

doi:10.1117/12.975102

17 October 2012 Femtosecond laser inscribed phase masks for fibre Bragg grating sensor inscription

Graham C. B. Lee, Kyriacos Kalli, Charalambos Koutsides, Zhijun Yan, Adedotun Adebayo, Michael Komodromos, Kate Sugden

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84214V (2012) https://doi.org/10.1117/12.975102
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

We present femtosecond laser inscribed phase masks for the inscription of Bragg gratings in optical fibres. The principal advantage is the flexibility afforded by the femtosecond laser inscription, where sub-surface structures define the phase mask period and mask properties. The masks are used to produce fibre Bragg gratings having different orders according to the phase mask period. The work demonstrates the incredible flexibility of femtosecond lasers for the rapid prototyping of complex and reproducible mask structures. We also consider three-beam interference effects, a consequence of the zeroth-order component present in addition to higher-order diffraction components.

Citation Download Citation

Graham C. B. Lee, Kyriacos Kalli, Charalambos Koutsides, Zhijun Yan, Adedotun Adebayo, Michael Komodromos, and Kate Sugden "Femtosecond laser inscribed phase masks for fibre Bragg grating sensor inscription", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84214V (17 October 2012); https://doi.org/10.1117/12.975102

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