Ciena Corporation

Ahmed Mustafa

Naim Ben-Hamida

Mohammad Honarparvar

Nahla Abouelkheir

Faisal Ahmed Musa

Naim Ben Hamida

Bruce Beggs

An integrated circuit device includes a digital-to-analog converter with multiple bit slices, each bit slice having a differential pair of driver transistors. A driver circuit includes the differential pairs of driver transistors, multiple series cascode transistors, and current bleed paths to modify drain-to-source currents in the various cascode transistors. Additional embodiments include series peaking circuits, back termination networks, and neutralization capacitors. Other embodiments are disclosed.

High speed high swing driver for direct drive photonic modulators

Aspects of the subject disclosure may include, for example, a frequency divider, comprising a plurality of delay devices arranged to receive input clocks and generate output clocks, wherein one or more of the delay devices comprises a first transconductance element configured to receive a first input and provide a first output, a second transconductance element configured to receive a second input and provide a second output, a first feedforward transconductance element that cross couples the first input and the second output, and a second feedforward transconductance element that cross couples the second input and the first output. Other embodiments are disclosed.

Method and system for boosting the speed of a ring-based frequency divider

Growing community of inventors

Kanata, Canada

Ahmed Mustafa