Optical EngineeringRefractive-index profiling of single-mode graded-index optical planar waveguides by the inverse Wentzel-Kramers-Brillouin method with improved accuracy
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We demonstrate with examples a technique of improving the accuracy of the inverse Wentzel-Kramers-Brillouin (WKB) method for refractive-index profiling of single-mode graded-index optical planar waveguides.