LiNbO3 Mach-Zehnder modulator with low drive voltage requirement and adjustable chirp
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United States of America Patent
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Apr 22, 2003
Grant Date -
Jan 23, 2003
app pub date -
Jul 18, 2001
filing date -
Jul 18, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electro-optic modulator and associated method are provided. The electro-optic modulator includes an optical waveguide comprised of two pairs of coplanar modulation strips, the strips being driven by a controller circuit which applies voltages of equal amplitude and opposite polarity to the strips of each pair. The voltage applied to the first pair of strips may differ from the voltage applied to the second pair of strips, so that a chirp factor may be adjusted if desired. The modulator and associated method exhibit reduced drive voltage requirements.
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