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Using the beam propagation method, we examine numerically and simulate optical field distribution in a waveguide Mach-Zehnder modulator fabricated in z-cut LiNbO3, where the waveguides are formed by titanium in-diffusion in LiNbO3 substrate. The device can be optimized for high extinction ratio and low insertion loss, with symmetric branches and arms, which are easier to fabricate.
Transparent Optical Networks, 2002. Proceedings of the 2002 4th International Conference on (Volume:1 )
Date of Conference: 2002