electrooptical modulator

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electrooptical modulator

[i‚lek·trō′äp·tə·kəl ′mäj·ə‚lād·ər]
(communications)
An optical modulator in which a Kerr cell, an electrooptical crystal, or other signal-controlled electrooptical device is used to modulate the amplitude, phase, frequency, or direction of a light beam.
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Low (sub-1-volt) halfwave voltage polymeric electro-optic modulators achieved by controlling chromophore shape.
Today's electro-optic modulators, based on hefty crystals of lithium niobate, operate at 6 volts and handle frequencies up to only about 70 gigahertz (GHz).
For the past 19 years, BNS has developed state-of-the-art electro-optic modulator devices and systems based on the diverse properties of liquid crystal materials and the continuous advancement of the semiconductor industry.
He invented the technology for conductive polymer claddings for nonlinear optic polymer electro-optic modulators, resulting in a tenfold improvement and a record 30 percent enhancement in the electro-optic coefficient.

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