公开(公告)号：US20200145111A1

公开(公告)日：2020-05-07

申请号：US16182964

申请日：2018-11-07

申请人： Mellanox Technologies Denmark ApS.

发明人： Thorkild FRANCK ,  Bjarke Vad PEDERSEN ,  Johan Jacob MOHR ,  Eyal DAVID ,  Juan Jose VEGAS OLMOS

IPC分类号： H04B10/54 ,  H04B10/524 ,  H04B10/58 ,  H01S5/42

摘要： Embodiments are disclosed for generating a lookup table value for calibrating a lookup table circuit in an optical transmitter. The example method includes generating a calibration signal. The calibration signal encodes a plurality of bits in a number of amplitude levels. The example method further includes transmitting the calibration signal to a module under calibration and transmitting a symbol sequence of defined length to a reference module. The reference module compares the symbol sequence with a distorted signal received from the module under calibration to generate a set of condition count statistics. The example method further includes receiving the set of condition count statistics from the receiver in the reference module and calculating a lookup table value based on the set of condition count statistics. The example method further includes transmitting the lookup table value to a transmitter associated with the module under calibration.