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.
|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 ; 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 (October 4, 2012).
Copyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
- femtosecond laser
- fibre Bragg gratings
- laser-material interaction
- phase masks
- Talbot effect