Abstract

Frequency dependent drive voltage is reported in velocity matched, packaged, Mach-Zehnder interferometers, made on Z-cut, Y-propagating LiNbO3, with and without etched ridges. Drive voltages of 7 V at 40 GHz are demonstrated, with the etched ridge device showing a 1/2-1 V advantage. Microwave modeling allowed the extraction of the effects of dispersion in material properties, occurring near the acoustic resonance, on bandwidth and drive voltage.

[IEEE ]

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  1. K. Noguchi, O. Mitomi, H. Miyazawa, and S. Seki, "A braodband Ti:LiNbO3 optical modulator with a ridge structure," J. Lightwave Technol., vol. 13, pp. 1164-1168, June 1995.
  2. K. Noguchi, O. Mitomi, and H. Miyazawa, "Millimeter-wave Ti:LiNbO3 optical modulators," J. Lightwave Technol., vol. 16, pp. 615-619, Apr. 1998.
  3. G. K. Gopalakrishnan, W. K. Burns, R. W. McElhanon, C. H. Bulmer, and A. S. Greenblatt, "Performance and modeling of broadband LiNbO3 traveling wave optical intensity modulators," J. Lightwave Technol., vol. 12, pp. 1807-1819, Oct. 1994.

J. Lightwave Technol. (3)

K. Noguchi, O. Mitomi, H. Miyazawa, and S. Seki, "A braodband Ti:LiNbO3 optical modulator with a ridge structure," J. Lightwave Technol., vol. 13, pp. 1164-1168, June 1995.

K. Noguchi, O. Mitomi, and H. Miyazawa, "Millimeter-wave Ti:LiNbO3 optical modulators," J. Lightwave Technol., vol. 16, pp. 615-619, Apr. 1998.

G. K. Gopalakrishnan, W. K. Burns, R. W. McElhanon, C. H. Bulmer, and A. S. Greenblatt, "Performance and modeling of broadband LiNbO3 traveling wave optical intensity modulators," J. Lightwave Technol., vol. 12, pp. 1807-1819, Oct. 1994.

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