1 September 2007 Comparison of the N times mode-lines technique to the inverse technique in refractive index profile reconstruction
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Abstract
A single-mode waveguide is fabricated using ion exchange in a molten bath of KNO3 salt. The mode effective index is measured using a mode-lines (M-lines) experiment. The waveguide is then etched, and the M-lines experiment is performed again. The two measurements are sufficient for refractive index profile (RIP) reconstruction, which is assumed to be Gaussian. The reconstructed profile is checked using a numerical technique and is then compared to the inverse technique, showing the inverse technique limitations.
© (2007) Society of Photo-Optical Instrumentation Engineers (SPIE)
Michael Gad, Michael Gad, Hatem H. ElRefaei, Hatem H. ElRefaei, Diaa A. M. Khalil, Diaa A. M. Khalil, Omar A. Omar, Omar A. Omar, } "Comparison of the N times mode-lines technique to the inverse technique in refractive index profile reconstruction," Optical Engineering 46(9), 094601 (1 September 2007). https://doi.org/10.1117/1.2785177 . Submission:
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