Integrated optical waveguides in LiNbO3: modeling and experimental analysis

R. Chakraborty; P. Ganguly; Sukhendu Das; J. C. Biswas; S. K. Lahiri

doi:10.1117/12.441308

25 September 2001 Integrated optical waveguides in LiNbO₃: modeling and experimental analysis

R. Chakraborty, P. Ganguly, Sukhendu Das, J. C. Biswas, S. K. Lahiri

Proceedings Volume 4417, Photonics 2000: International Conference on Fiber Optics and Photonics; (2001) https://doi.org/10.1117/12.441308
Event: Photonics 2000: International Conference on Fiber Optics and Photonics, 2001, Calcutta, India

Abstract

Graded-index optical channel waveguides rare fabricated by diffusion of Ti in LiNbO₃. A model has been developed for calculating the mode profiles of the same, by first finding the effective refractive index profile along the lateral direction, and then discretizing the profile and applying the matrix method. This effective-index-based matrix method has been presented in this paper and established as a computationally fast, analytical method to computer modal electric field and intensity profiles in single and coupled graded-index channel waveguides. The method can be used in coupled systems consisting of three or more waveguides where the input power may be launched to any of the waveguides. Some of the computed intensity profiles have been compared with experimental data. Although computation and measurements have been performed only for TE and TM polarizations, the method has the inherent capability of handling arbitrary polarization.

Citation Download Citation

R. Chakraborty, P. Ganguly, Sukhendu Das, J. C. Biswas, and S. K. Lahiri "Integrated optical waveguides in LiNbO₃: modeling and experimental analysis", Proc. SPIE 4417, Photonics 2000: International Conference on Fiber Optics and Photonics, (25 September 2001); https://doi.org/10.1117/12.441308

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