1 July 2010 Improved method for recovering graded-index profile of isotropic waveguide by cubic spline function
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Abstract
An improved method for recovering the refractive index profile of an isotropic graded-index waveguide is presented on the basis of the cubic spline interpolation method. The surface refractive index of the waveguide can be obtained by using a polynomial function that is related with the parameters of all modes. The simulation results of several typical index distributions show that this method can be employed to recover a graded-index profile well.
© (2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Yong Yang, Lei Huang, Xianfeng Chen, "Improved method for recovering graded-index profile of isotropic waveguide by cubic spline function," Optical Engineering 49(7), 074602 (1 July 2010). https://doi.org/10.1117/1.3463016 . Submission:
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