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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 16, Iss. 3 — Mar. 1, 1998
  • pp: 459–

Theoretical Analysis of Guided Mode and Effective Refractive Index at 1.53\;\mum in Ti:LiNbO3 Strip Waveguides

Delong Zhang, Guilan Ding, and Caihe Chen

Journal of Lightwave Technology, Vol. 16, Issue 3, pp. 459- (1998)


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Abstract

An analysis of guided modes and effective refractive indexes in c-cut Ti-diffused LiNbO3 strip waveguides has been performed at the wavelength 1.53 \mu m by the variational method. Dependences of mode size and effective refractive index on initial Ti-strip width W, diffusion temperature T and initial Ti-strip thickness H have been calculated for several lower order modes. As compared the plots of the mode size with the previous published experimental results, an agreement in general behavior has been obtained. The single-mode and cutoff conditions were discussed numerically, which are very useful in optimizing and designing the Er:Ti:LiNbO3 waveguide devices. In addition, several advantages of 1.48 \mum pumping were summarized.

[IEEE ]

Citation
Delong Zhang, Guilan Ding, and Caihe Chen, "Theoretical Analysis of Guided Mode and Effective Refractive Index at 1.53\;\mum in Ti:LiNbO3 Strip Waveguides," J. Lightwave Technol. 16, 459- (1998)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-16-3-459


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References

  1. H. Suche, R. Wessel, S. Westenh fer and W. Sohler, "Harmonically modelocked Ti:Er:LiNbO_3 waveguide laser," Opt. Lett., vol. 20, pp. 596-598, 1995.
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  3. S. Fouchet, A. Carenco, C. Daguet, R. Guglielmi, and L. Riviere, "Wavelength dispersion of Ti induced refractive index change in LiNbO_3 as a function of diffusion parameters," J. Lightwave Technol., vol. 5, pp. 700-708, 1987.
  4. M. Fukuma and J. Noda, "Optical properties of titanium-diffused LiNbO_3 strip waveguides and their coupling-to-a-fiber characteristics," Appl. Opt., vol. 19, pp. 591-597, 1980.
  5. E. Strake, G. P. Bava, and I. Montrosset, "Guided modes of Ti:LiNbO_3 channel waveguides: a novel quasianalytical technique in comparision with the scalar finite-element method," J. Lightwave Technol., vol. 6, pp. 1126-1135, June 1988.

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