Electro-optic MZI modulators, utilizing different phases in proton-exchanged LiTaO<sub>3</sub> waveguides

S. M. Kostritskii; Yu. N. Korkishko; V. A. Fedorov; R. F. Tavlykaev; R. V. Ramaswamy

doi:10.1117/12.620459

30 September 2005 Electro-optic MZI modulators, utilizing different phases in proton-exchanged LiTaO₃ waveguides

S. M. Kostritskii, Yu. N. Korkishko, V. A. Fedorov, R. F. Tavlykaev, R. V. Ramaswamy

Proceedings Volume 5956, Integrated Optics: Theory and Applications; 595610 (2005) https://doi.org/10.1117/12.620459
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

Electro-optic Mach-Zehnder interferometric (MZI) modulators have been fabricated by proton exchange in LiTaO₃. Electro-optic efficiency of these modulators has been found to be depending on phase composition of H_xLi_1-xTaO₃ waveguide in full accordance with the data of Raman scattering spectroscopy on microscopic contributions in electro-optic effect for the different H_xLi_1-xTaO₃ phases. These spectroscopy data were used to found an appropriate phase composition and, thus, optimize MZI modulators. The experimental samples of MZI modulator fabricated at the optimal technological conditions exhibit the improved electro-optical efficiency with far superior photorefractive resistance compared to the LiNbO₃ waveguides and modulators.

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S. M. Kostritskii, Yu. N. Korkishko, V. A. Fedorov, R. F. Tavlykaev, and R. V. Ramaswamy "Electro-optic MZI modulators, utilizing different phases in proton-exchanged LiTaO₃ waveguides", Proc. SPIE 5956, Integrated Optics: Theory and Applications, 595610 (30 September 2005); https://doi.org/10.1117/12.620459

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