Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic
Patent
1991-02-28
1993-05-25
Lee, John D.
Optical waveguides
Temporal optical modulation within an optical waveguide
Electro-optic
385 8, G02B 610
Patent
active
052147240
ABSTRACT:
An optical waveguide device includes an optical waveguide formed on a surface of a substrate having an electrooptical effect, and a pair of electrodes formed on corresponding regions above the optical waveguide and receiving a driving electric signal thereacross. By applying the electric signal to the electrodes, an electric field is formed in a vicinity of the optical waveguide. By changing a distribution of the electric field in accordance with a change in a frequency of the electric signal, it is possible to suppress a DC drift of the device to effectively compensate a fluctuation in operational characteristics due to the DC drift, stress of the like.
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Doi Masaharu
Kubota Yoshinobu
Mekada Naoyuki
Nakazawa Tadao
Seino Minoru
Fujitsu Limited
Heartney Phan Thi
Lee John D.
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