Electrooptic modulation up to 40 GHz in a barium titanate thin film waveguide modulator.

@article{Tang2004ElectroopticMU,
  title={Electrooptic modulation up to 40 GHz in a barium titanate thin film waveguide modulator.},
  author={Pingsheng Tang and David J. Towner and Tsuyoshi Hamano and A J Louise Meier and Bruce W. Wessels},
  journal={Optics express},
  year={2004},
  volume={12 24},
  pages={5962-7}
}
The high frequency operation of a low-voltage electrooptic modulator based on a strip-loaded BaTiO3 thin film waveguide structure has been demonstrated. The epitaxial BaTiO3 thin film on an MgO substrate forms a composite structure with a low effective dielectric constant of 20.8 at 40 GHz. A 3.9 V half-wave voltage with a 3.7 GHz 3-dB bandwidth and a 150 pm/V effective electrooptic coefficient is obtained for the 3.2mm-long modulator at 1.55 ?m. Broadband modulation up to 40 GHz is measured… CONTINUE READING
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