MACH-ZEHNDER MODULATOR ARRANGEMENT AND METHOD FOR OPERATING A MACH-ZEHNDER MODULATOR ARRANGEMENT

摘要

An electro-optic Mach-Zehnder modulator arrangement includes first and second optical waveguides forming, respectively, first and second arms of the Mach-Zehnder modulator. An electrode arrangement includes a first waveguide electrode output port coupled to the first waveguide electrodes a second waveguide electrode arranged on top of a capacitive segment of the first and the second optical waveguides, respectively, such that a voltage can be applied across the capacitive segments of the first and second optical waveguide. At least one driver unit supplies a voltage to the electrode arrangement. The driver unit includes first and second output ports coupled, respectively, to the first and second waveguide electrodes. The driver unit supplies first and second varying signals to the first and second waveguide electrodes via the first and second output ports, respectively. A non-grounded conductive region connects the capacitive segments of the first and second optical waveguides to each other.

主权项

1. An electro-optic Mach-Zehnder modulator arrangement, comprising
a first optical waveguide forming a first arm of the Mach-Zehnder modulator; a second optical waveguide forming a second arm of the Mach-Zehnder modulator; an electrode arrangement comprising at least one first waveguide electrode and at least one second waveguide electrode arranged on top of a capacitive segment of the first and the second optical waveguide, respectively, such that a voltage can be applied across the capacitive segments of the first and second optical waveguide; at least one driver unit for supplying a voltage to the electrode arrangement, the driver unit comprising at least a first output port coupled to the first waveguide electrodes and a second output port coupled to the second waveguide electrodes, wherein the driver unit is configured to supply a first varying signal to the first waveguide electrodes via the first output port and to supply a second varying signal to the second waveguide electrodes via the second output port; and a non-grounded conductive region via which the capacitive segment of the first optical waveguide is connected to the capacitive segment of the second optical waveguide such that the first and second waveguide electrodes are capacitively coupled to one another.