Vcsel equalization techniques for high speed optical transmission
AssigneeHewlett Packard Enterprise Development LP
InventorsZHUBIAO ZHU, DANIEL ALAN BERKRAM, RONALDO SANCHEZ
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Abstract
An optical emitter includes a vertical cavity surface emitting laser (VCSEL), an equalization circuit coupled to the VCSEL; and a current source coupled to the VCSEL and the equalization circuit. The equalization circuit is configured to divert a first current from the current source to the VCSEL at a first data frequency and divert a second current greater than the first current from the current source to the VCSEL at a second data frequency higher than the first data frequency.
Claims20
An optical emitter, comprising:
- a vertical cavity surface emitting laser (VCSEL);
- an equalization circuit coupled to the VCSEL;
- and
- a current source coupled to the VCSEL and the equalization circuit,
- wherein the equalization circuit is configured to divert a first current from the current source to the VCSEL at a first data frequency and divert a second current greater than the first current from the current source to the VCSEL at a second data frequency higher than the first data frequency.
An optical emitter, comprising:
- a vertical cavity surface emitting laser (VCSEL);
- an equalization circuit coupled to the VCSEL;
- and
- a current source coupled to the VCSEL and the equalization circuit, wherein:
- the equalization circuit is configured to divert a first current from the current source to the VCSEL at a first data frequency and divert a second current greater than the first current from the current source to the VCSEL at a second data frequency higher than the first data frequency;
- and
- the equalization circuit is disposed on an interposer separable from the VCSEL.
An optical emitter, comprising:
- a vertical cavity surface emitting laser (VCSEL);
- an equalization circuit coupled to the VCSEL in parallel;
- and a current source coupled to the VCSEL and the equalization circuit,
- wherein the equalization circuit is configured to divert a first current from the current source to the VCSEL at a first data frequency and divert a second current greater than the first current from the current source to the VCSEL at a second data frequency higher than the first data frequency.
Dependencies are inferred from the claim text.