Method of driving mach-zehnder light modulator and light modulating device
AssigneeAisin Seiki Kabushiki Kaisha
InventorYosuke Tateishi
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Abstract
A method of driving a mach-zehnder light modulator includes alternately applying modulation signal voltages having equal positive and negative effective values as modulation signal voltages to a modulation electrode of the mach-zehnder light modulator. The mach-zehnder light modulator includes a mach-zehnder optical waveguide disposed on a base exhibiting an electro-optical effect and the modulation electrode for applying thereto the modulation signal voltages in directions crossing the mach-zehnder optical waveguide. The mach-zehnder light modulator modulates the intensity of an output light in accordance with the modulation signal voltages which are applied to the modulation electrode.
Claims20
A method of driving a mach-zehnder light modulator comprising:
- alternately applying modulation signal voltages having equal positive and negative effective values as modulation signal voltages to a modulation electrode of the mach-zehnder light modulator, the mach-zehnder light modulator including a mach-zehnder optical waveguide disposed on a base exhibiting an electro-optical effect and the modulation electrode for applying thereto the modulation signal voltages in directions crossing the mach-zehnder optical waveguide, the mach-zehnder light modulator modulating the intensity of an output light in accordance with the modulation signal voltages which are applied to the modulation electrode.
A light modulating device comprising:
- a mach-zehnder light modulator including a mach-zehnder optical waveguide disposed on a base exhibiting an electro-optical effect and a modulation electrode for applying thereto modulation signal voltages in directions crossing the mach-zehnder optical waveguide, the mach-zehnder light modulator modulating the intensity of an output light in accordance with the modulation signal voltages which are applied to the modulation electrode;
- and
- a modulation signal voltage generator for alternately applying modulation signal voltages having equal positive and negative effective values as the modulation signal voltages to the modulation electrode.
Dependencies are inferred from the claim text.