Numerical modeling of sensors based on long period gratings in photonic crystal fibres

A numerical model of the sensitivity of long period gratings fabricated by electric-arc in photonic crystal fibres to strain, temperature and refractive index is proposed and evaluated by comparison to the experimental results. It is shown to be superior to the commonly used semi-analytical method. The generalized modelling procedure is thoroughly explained in order to facilitate its application to a wide range of long period gratings in different types of fibres.

[1]  R. Kashyap.  Fiber Bragg Gratings , 1999 .

[2]  David J. Webb,et al.  Measured sensitivity of arc-induced long-period grating sensors in photonic crystal fibre , 2006 .

[3]  R. McPhedran,et al.  Multipole method for microstructured optical fibers. I. Formulation , 2003 .

[4]  Zhaoming Zhu,et al.  Full-vectorial finite-difference analysis of microstructured optical fibers. , 2002, Optics express.

[5]  David J. Webb,et al.  A comparison of the sensing characteristics of long period gratings written in three different types of fiber , 2003 .

[6]  Henri Uranus,et al.  Modelling of microstructured waveguides using a finite-element-based vectorial mode solver with transparent boundary conditions. , 2004, Optics express.

[7]  Lou Shuqin,et al.  Supercell lattice method for photonic crystal fibers. , 2003, Optics express.

[8]  S. James,et al.  Optical fibre long-period grating sensors: characteristics and application , 2003 .

[9]  Kyriacos Kalli,et al.  Nondestructive index profiling of long period gratings in photonic crystal fibres , 2006 .

[10]  Gaetano Bellanca,et al.  Full vectorial BPM modeling of Index-Guiding Photonic Crystal Fibers and Couplers. , 2002, Optics express.

[11]  David J. Webb,et al.  A comparison of the spectral properties of high temperature annealed long period gratings inscribed by fs laser, UV, and fusion-arc , 2006, SPIE Photonics Europe.

[12]  P Andrés,et al.  Full-vector analysis of a realistic photonic crystal fiber. , 1999, Optics letters.

[13]  David J. Webb,et al.  Temperature insensitive long-period grating sensors in photonic crystal fibre , 2004 .

[14]  R. McPhedran,et al.  Multipole method for microstructured optical fibers. II. Implementation and results , 2002 .

[15]  Ashish Madhukar Vengsarkar,et al.  BAND-REJECTION FIBRE FILTER USING PERIODIC CORE DEFORMATION , 1997 .