Differential Driver, Circuits and Devices Including the Same, and Method(s) of Manufacturing the Same
AssigneeSource Photonics, Inc.
InventorMohammad AZADEH
Life of this patent
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Abstract
The present disclosure relates to a differential drive circuit. The differential drive circuit generally includes a differential driver, a first transmission line coupled to a first output node of the differential driver, and a second transmission line coupled to a second output node of the differential driver. A laser diode is coupled to the first and second transmission lines. The first and second transmission lines have different delays, lengths, or impedances. In some embodiments, the delay between the first transmission line and the second transmission line is 0.2-0.4 times a rise time or fall time of a signal on either transmission line.
Claims20
An optical output circuit, comprising:
- a differential driver;
- a first transmission line coupled to a first differential output node of said differential driver and having a first delay;
- a second transmission line coupled to a second differential output node of said differential laser driver and having a second delay different from said first transmission line;
- and
- a laser diode coupled to said first transmission line and said second transmission line, and configured to receive a differential output from said differential driver.
A method of manufacturing an optical output circuit, comprising:
- coupling a first transmission line to a first differential node of a differential driver, said first transmission line having a first delay;
- coupling a second transmission line to a second differential node of said differential driver, said second transmission line having a second delay different from said first delay;
- and
- coupling a first input of a laser diode to said first transmission line and a second input of said laser diode to said second transmission line.
Dependencies are inferred from the claim text.