• Felipe S. Delgado
  • Marco A. Jucá
  • Thiago V. N. Coelho
  • Alexandre B. dos Santos
  • Andres P. L. Barbero
  • Vinicius N. H. Silva



Effective Refractive Index, Long Period Gratings, Propagation modes, cladding modes


In this paper, we explicitly show a complete analysis and detailed calculation of propagation characteristics of the effective refractive indices of the core and cladding for a long period grating employing both the Two-Layer and Three-Layer Geometries. The results are achieved employing graphical solution methods and presented in terms of the effective refractive indices of the core and cladding. Then, we compare the results with OptiGrating v.4.2.2 (Optiwave Systems Inc., Ottawa, Canada).  Finally, we point the best model to evaluate the effective refractive indices, avoiding incorrect designs of the long period gratings.


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How to Cite

Felipe S. Delgado, Marco A. Jucá, Thiago V. N. Coelho, Alexandre B. dos Santos, Andres P. L. Barbero, & Vinicius N. H. Silva. (2016). PROPAGATION CHARACTERISTICS OF OPTICAL LONG PERIOD FIBER GRATINGS USING GRAPHICAL SOLUTION METHODS. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 15(2), 135–145.



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