Ciena Corporation

Jean-Frédéric Gagné

Michael Vitic

Maxime Jacques

Ramin Deban

Gregory Brookes

Mathieu Laliberté

A first (second) electrical input port receives a first (second) drive signal. A first (second) transmission line is configured to propagate a first (second) electromagnetic wave over at least a portion of a first (second) optical waveguide arm of an MZI to apply an optical phase modulation. A drive signal interconnection structure is configured to provide a first electrical connection between the first electrical input port and an inner electrode shared by the transmission lines, and a second electrical connection between the second electrical input port and respective outer electrodes of the transmission lines; and is configured to preserve relative phase shifts between the drive signals. An impedance associated with a first electric field distribution between the inner electrode and a first of the outer electrodes is substantially equal to an impedance associated with a second electric field distribution between the inner electrode and a second of the outer electrodes.

Providing drive signals for a differential drive modulator

An apparatus includes a plurality of layers arranged on top of one another and including at least one ground layer and a signal layer; a first set of signal pads and a second set of signal pads on the signal layer; and a slot formed in a portion of the at least one ground layer between the first set of signal pads and the second set of signal pads. The apparatus can include an optical assembly housed by the plurality of layers and connected to the first set of signal pads and the second set of signal pads. The optical assembly can include a micro Intradyne Coherent Receiver (μICR), a Coherent Driver Modulator (CDM), or a Coherent Optical Subassembly (COSA).

Low RF crosstalk devices via a slot for isolation

An optical waveguide structure forms an MZI in proximity to an electro-optic material. A first (second) electrical input port is configured to receive a first (second) drive signal. The second drive signal has a negative amplitude relative to the first drive signal. A first (second) transmission line is configured to propagate a first (second) electromagnetic wave over at least a portion of a first (second) optical waveguide arm to apply an optical phase modulation. A drive signal interconnection structure is configured to provide a first electrical connection between the first electrical input port and an electrode shared by the transmission lines, and a second electrical connection between the second electrical input port and respective electrodes of the transmission lines; and is configured to preserve relative phase shifts between the drive signals. Input impedances at the first and second electrical input ports are substantially equal to each other.

An apparatus includes a plurality of layers arranged on top of one another and including at least one ground layer and a signal layer; a first set of signal pads and a second set of signal pads on the signal layer; and a slot formed in the at least one ground layer between the first set of signal pads and the second set of signal pads. The apparatus can include an optical assembly housed by the plurality of layers and connected to the first set of signal pads and the second set of signal pads. The optical assembly can include a micro Intradyne Coherent Receiver (μICR), a Coherent Driver Modulator (CDM), or a Coherent Optical Subassembly (COSA).

An electronic device is provided. In particular, the electronic device includes (i) an electronic integrated circuit (IC) chip, (ii) a chip mounting substrate for mounting the electronic IC chip on a chip side of the chip mounting substrate, (iii) a radio frequency (RF) interface component disposed on an opposing side of the chip mounting substrate, the opposing side opposing the chip side, and (iv) an RF bridge component penetrating a first opening in the chip mounting substrate and configured to operably connect the electronic IC chip and the RF interface component.

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Jean-Frédéric Gagné