Intel Corporation

Taesub Ty Yoon

Bhushan Asuri

A method, system, and electrical circuit for determining a magnitude of a modulation current provided to a laser device based upon an approximated slope efficiency, wherein the approximated slope efficiency is based upon at least one discrete incremental change in a bias current to the laser device and at least one change in output power from the laser device.

Laser driver circuit and system

A laser driver circuit to provide a current signal to power a laser device is described. A bias current provided to the laser device may be changed while changes in the output power of a light signal from the laser device is monitored. A slope efficiency associated with the laser device may be determined based upon the changes in the bias current and changes in the output power.

A differential transimpedance amplifier includes a differential transconductance stage to provide a current to a differential transimpedance stage. The differential transimpedance stage includes two gain stages and provides a voltage. A first feedback element is coupled in parallel with the differential transimpedance stage.

Differential transimpedance amplifier for optical communication

A transimpedance amplifier system includes a first gain stage to receive an input signal. A second gain stage is coupled to the first gain stage to provide a first output. A first passive feedback element is coupled in parallel with the second gain stage. A general feedback element is coupled in parallel with the first gain stage and the second gain stage. A replica biasing stage is included to provide a second output. A replica feedback element is coupled in parallel with the replica biasing stage.

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Los Angeles, CA, United States of America

Taesub Ty Yoon