Numerical modelling of complex femtosecond laser inscribed fiber gratings - comparison wih experiment

C. Koutsides, Kyriacos Kalli, D.J. Webb, L. Zhang

Research output: Chapter in Book/Report/Conference proceedingConference publication

Abstract

We present experimental studies and numerical modeling based on a combination of the Bidirectional Beam Propagation Method and Finite Element Modeling that completely describes the wavelength spectra of point by point femtosecond laser inscribed fiber Bragg gratings, showing excellent agreement with experiment. We have investigated the dependence of different spectral parameters such as insertion loss, all dominant cladding and ghost modes and their shape relative to the position of the fiber Bragg grating in the core of the fiber. Our model is validated by comparing model predictions with experimental data and allows for predictive modeling of the gratings. We expand our analysis to more complicated structures, where we introduce symmetry breaking; this highlights the importance of centered gratings and how maintaining symmetry contributes to the overall spectral quality of the inscribed Bragg gratings. Finally, the numerical modeling is applied to superstructure gratings and a comparison with experimental results reveals a capability for dealing with complex grating structures that can be designed with particular wavelength characteristics.
Original languageEnglish
Title of host publication21st International Conference on Optical Fiber Sensors
EditorsWojtek J. Bock, Jacques Albert, Xiaoyi Bao
Place of PublicationBellingham, WA (US)
PublisherSPIE
Number of pages4
ISBN (Print)978-0-8194-8246-4
DOIs
Publication statusPublished - 17 May 2011
Event21st International Conference on Optical Fiber Sensors - Ottawa, ON, Canada
Duration: 15 May 201119 May 2011
http://www.ofs21.org/

Publication series

NameSPIE Proceedings
PublisherSPIE
Volume7753
ISSN (Print)0277-786X
ISSN (Electronic)2410-9045

Conference

Conference21st International Conference on Optical Fiber Sensors
Abbreviated titleOFS21
CountryCanada
CityOttawa, ON
Period15/05/1119/05/11
Internet address

Bibliographical note

C. Koutsides, K. Kalli, D. J. Webb and L. Zhang, "Numerical modeling of complex femtosecond laser inscribed fiber gratings: comparison with experiment", Proc. SPIE 7753, 77536Q (2011). 21st International Conference on Optical Fiber Sensors (OFS21), 15-19 May 2011, Ottawa (CA).

Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic 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.

http://dx.doi.org/10.1117/12.885124

Keywords

  • Bidirectional Beam Propagation Method
  • Finite Element Modeling
  • wavelength spectra of point by point femtosecond laser inscribed fiber Bragg gratings
  • insertion loss
  • dominant cladding
  • ghost modes
  • shape
  • fiber Bragg grating
  • symmetry breaking

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  • Research Output

    • 10 Conference contribution
    • 1 Other chapter contribution

    870nm Bragg grating in single mode TOPAS microstructured polymer optical fibre

    Yuan, W., Webb, D. J., Kalli, K., Nielsen, K., Stefani, A., Rasmussen, H. K. & Bang, O., 2011, 21st International Conference on Optical Fiber Sensors. Bock, W. J., Albert, J. & Bao, X. (eds.). SPIE, 4 p. 77538X. (SPIE proceedings; vol. 7753).

    Research output: Chapter in Book/Report/Conference proceedingConference publication

    Open Access
    File
  • All-fibre twist sensor system based on 45° and 8° tilted fibre gratings

    Yan, Z., Adebayo, A., Zhou, K., Zhang, L. & Webb, D., 17 May 2011, 21st International Conference on Optical Fiber Sensors. Bock, W. J., Albert, J. & Bao, X. (eds.). Bellingham, WA (US): SPIE, 4 p. 77538E. (SPIE Proceedings; vol. 7753).

    Research output: Chapter in Book/Report/Conference proceedingConference publication

    Open Access
    File
  • Femtosecond laser inscribed Bragg sensor in Terfenol-D coated optical fibre with ablated microslot for the detection of static magnetic fields

    Smith, G. N., Allsop, T. D. P., Kalli, K., Koutsides, C., Neal, R., Sugden, K., Culverhouse, P. & Bennion, I., Jan 2011, 21st international conference on optical fiber sensors. Bock, W. J., Albert, J. & Bao, X. (eds.). SPIE, 4 p. (SPIE proceedings; vol. 7753).

    Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

    Open Access
    File
  • Cite this

    Koutsides, C., Kalli, K., Webb, D. J., & Zhang, L. (2011). Numerical modelling of complex femtosecond laser inscribed fiber gratings - comparison wih experiment. In W. J. Bock, J. Albert, & X. Bao (Eds.), 21st International Conference on Optical Fiber Sensors [77536Q] (SPIE Proceedings; Vol. 7753). SPIE. https://doi.org/10.1117/12.885124