公开(公告)号：US20180321520A1

公开(公告)日：2018-11-08

申请号：US16032947

申请日：2018-07-11

Applicant: INPHI CORPORATION

Inventor： Abdellatif EL-MOZNINE ,  Bruno TOURETTE ,  Hessam MOHAJERI

IPC: G02F1/025 ,  G02F1/225 ,  G02F1/01 ,  H03G3/20 ,  H04B10/54 ,  G02F1/21

CPC classification number: G02F1/025 ,  G02F1/0121 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/12 ,  H03G3/20 ,  H04B10/54

Abstract: A driver configuration for driving a Mach-Zehnder modulator (MZM) includes a first driver supplied by a first voltage and a second voltage and configured to provide a first two complimentary outputs respectively to a first N-electrode of a first branch of the MZM and a second N-electrode of a second branch of the MZM. Additionally, the driver configuration includes a second driver supplied by a third voltage and a fourth voltage and configured to provide a second two complimentary outputs respectively to a first P-electrode of the first branch and a second P-electrode of the second branch. The driver configuration sets a difference between the third voltage and the fourth voltage equal to a difference between the first voltage and the second voltage to provide a same peak-to-peak differential swing for modulating light wave through each transmission line and output a modulated light with twice of the peak-to-peak differential swing.

公开(公告)号：US20220075115A1

公开(公告)日：2022-03-10

申请号：US17012629

申请日：2020-09-04

Applicant: INPHI CORPORATION

Inventor： Jie LIN ,  Masaki KATO ,  Bruno TOURETTE ,  Brian TAYLOR

IPC: G02B6/12 ,  H04B10/61 ,  H04B10/43

Abstract: A method for making a pair of photodiodes to detect low-power optical signal includes providing a waveguide including one or more branches in a silicon photonics substrate to deliver an input optical signal to the silicon photonics integrated circuit; forming a pair of nearly redundant photodiodes in silicon photonics platform in the silicon photonics substrate. coupling a first one of the pair of nearly redundant photodiodes optically to each of the one or more branches for receiving the input optical signal combined from all of the one or more branches; coupling a second one of the pair of nearly redundant photodiodes electrically in series to the first one of the pair of nearly redundant photodiodes; and drawing a current from the first one of the pair of nearly redundant photodiodes under a reversed bias voltage applied to the pair of nearly redundant photodiodes.