A finite differences method for the reconstruction of refractive index profiles from near-field measurements

Journal of Lightwave Technology

Volumn 16, Issue 7, 1998, Pages 1348-1352

  Caccavale, Federico ^a,c,d   Segato, Francesco ^a   Mansour, Ibrahim ^a,b   Gianesin, Massimiliano ^a  

^a UNIVERSITY OF PADOVA   (Italy)

^b UNIVERSITY OF JORDAN   (Jordan)

^c MOSCOW STATE UNIVERSITY   (Russian Federation)

^d Ital Inst for the Phys of Matter   (Italy)

Author keywords

Integrated optics; Numerical analysis; Optical materials devices; Optical measurements; Optical waveguides

Indexed keywords

ALGORITHMS; FINITE DIFFERENCE METHOD; INTEGRATED OPTICS; LIGHT MEASUREMENT; OPTICAL MATERIALS; REFRACTIVE INDEX;

NEAR FIELD TECHNIQUE;

OPTICAL WAVEGUIDES;

EID: 0032122948     PISSN: 07338724     EISSN: None     Source Type: Journal    
DOI: 10.1109/50.701416     Document Type: Article

References (16)

1. F. Caccavale, P. Chakraborty, A. Quaranta, G. Gianello, I. Mansour, R. Corsini, and G. Mussi, "Secondary ion mass spectrometry and near field studies of Ti:LiNbO3 optical waveguides," J. Appl. Phys., vol. 78, p. 5345, 1995.
2. I. P. Kaminow and J. R. Carruthers, "Optical waveguding layers in LiNbO3 and LiTaO3," Appl. Phys. Lett., vol. 22, p. 326, 1973.
3. P. K. Tien, R. Ulrich, and R. J. Martin, "Modes of propagating light waves in thin deposited semiconductor films," Appl. Phys. Lett., vol. 14, p. 291, 1969.
4. A. Neyer, "Direct measurement of refractive index profiles of Ti:LiNbO3 slab waveguides," Proc. 5th European Conf. Integrated Opt. (ECIO'85), Berlin, Germany, p. 67.
5. L. McCaughan and E. R. Bergman, "Index distribution of optical waveguides from their mode profiles," J. Lightwave Technol., vol. 1, p. 241, 1983.
6. J. M. White and P. F. Heidrich, "ptical waveguide refractive index profiles determined from measurement of mode indices: A simple analysis," Appl. Opt., vol. 15, p. 151, 1976.
7. K. S. Chiang, "Construction of refractive index profiles of planar dielectric waveguides from the distribution of effective indexes," J. Lightwave Technol., vol. 3, p. 385, 1985.
8. F. Caccavale, F. Gonella, G. Caneva, and I. Mansour, "Iterative simplex-finite difference method for the characterization of optical waveguides," J. Lightwave Techn., vol. 14, p. 1825, 1996.
9. I. Mansour and F. Caccavale, "An improved procedure to calculate the refractive index profile from the measured near-field intensity," J. Lightwave Technol., vol. 14, p. 423, 1996.
10. F. James, MINUIT Reference Manual, CERN Program Library Long Writeup D506, CERN, Geneva, Switzerland, 1994.
11. M. S. Stern, "Semi vectorial finite difference method for optical waveguide with arbitrary index profiles," IEEE Proc., vol. 135, no. 1, pt. J, 1988.
12. R. S. Weis and T. K. Gaylord, "Lithium niobate: summary of physical properties and crystal structure," Appl. Phys., vol. A, no. 37, p. 191, 1985.
13. R. V. Schmidt and I. P. Kaminow, "Metal-diffused optical waveguides in LiNbO3," Appl. Phys. Lett., vol. 25, p. 458, 1974.
14. F. Caccavale, P. Chakraborty, I. Mansour, G. Gianello, M. Mazzoleni, and M. Elena, "A secondary-ion-mass spectrometry study of magnesium diffusion in lithium niobate," J. Appl. Phys., vol. 76, p. 7752, 1994.
15. F. Caccavale, P. Chakraborty, A. Capobianco, G. Gianello, and I. Mansour, "Characterization and optimization of Ti:LiNbO3 optical devices by second diffusion of magnesium," J. Appl. Phys., vol. 78, p. 187, 1995.
16. I. Mansour and F. Caccavale, "Theoretical waveguide optimization in a Ti:LiNbO3 Mach-Zehnder modulator by Mg-diffusion," Appl. Opt., vol. 35, p. 1492, 1996.