Patent ID: 11955778
Assignee: MELLANOX TECHNOLOGIES, LTD.
Field: Optics (Instruments)
Classification: CPC H  G | IPC H

Claim 10:
11. A method, comprising:
for at least a portion of Vertical-Cavity Surface-Emitting Lasers (VCSELs) on a wafer, measuring a set of representative parameters of the VCSELs, of predetermined DC or small-signal values;
measuring a set of representative performance parameters of an optical transmitter that comprises a VCSEL from the at least a portion of VCSELs, wherein the VCSEL is driven by a driving chain of a Clock Data Recovery Unit (CDRU) and a VCSEL driver;
matching between an input impedance and an output impedance of the VCELs and the VCEL driver;
determining a correlation between the measured set of representative parameters of the VCSELs and the set of representative performance parameters of the optical transmitter;
sorting at least some VCSELs on the wafer into clusters according to electrical characteristics of the VCSEL driver based on the matching, such that each cluster comprises a number of VCSELs with a similar probability of complying with the set of representative performance parameters of the optical transmitter while being driven by the driver; and
providing a feedback signal to the CDRU for equalizing control signals provided to the driver.