公开(公告)号：US20200036449A1

公开(公告)日：2020-01-30

申请号：US16580813

申请日：2019-09-24

Applicant: Luxtera, Inc.

Inventor： Brian Welch ,  Xuelin Xu

IPC: H04B10/516 ,  H04B10/524 ,  H04B10/50 ,  H04B10/54

Abstract: Methods and systems for a distributed optical transmitter with local domain splitting is disclosed and may include, in an optical modulator integrated in a silicon photonics chip: receiving electrical signals, communicating the electrical signals to domain splitters along a length of waveguides of the optical modulator utilizing one or more delay lines, and generating electrical signals in voltage domains utilizing the domain splitters for modulating the optical signals in the waveguides of the optical modulator by driving diodes with the electrical signals generated in the voltage domains. The delay lines may comprise one delay element per domain splitter, or may comprise a delay element per domain splitter for a first subset of the domain splitters and more than one delay element per domain splitter for a second subset of the domain splitters.

公开(公告)号：US10425165B1

公开(公告)日：2019-09-24

申请号：US16188899

申请日：2018-11-13

Applicant: Luxtera, Inc.

Inventor： Brian Welch ,  Xuelin Xu

IPC: H04B10/516 ,  H04B10/524 ,  H04B10/50 ,  H04B10/54

Abstract: Methods and systems for a distributed optical transmitter with local domain splitting is disclosed and may include, in an optical modulator integrated in a silicon photonics chip: receiving electrical signals, communicating the electrical signals to domain splitters along a length of waveguides of the optical modulator utilizing one or more delay lines, generating electrical signals in voltage domains utilizing the domain splitters, modulating received optical signals in the waveguides of the optical modulator by driving diodes with the electrical signals generated in the voltage domains, and generating a modulated output signal through interference of the modulated optical signal in the waveguides of the optical modulator. The delay lines may comprise one delay element per domain splitter, or may comprise a delay element per domain splitter for a first subset of the domain splitters and more than one delay element per domain splitter for a second subset of the domain splitters.

公开(公告)号：US10128957B2

公开(公告)日：2018-11-13

申请号：US14997935

申请日：2016-01-18

Applicant: Luxtera, Inc.

Inventor： Brian Welch ,  Xuelin Xu

IPC: H04B10/00 ,  H04B10/516 ,  H04B10/50 ,  H04B10/524 ,  H04B10/54

Abstract: Methods and systems for a distributed optical transmitter with local domain splitting is disclosed and may include, in an optical modulator integrated in a silicon photonics chip: receiving electrical signals, communicating the electrical signals to domain splitters along a length of waveguides of the optical modulator utilizing one or more delay lines, generating electrical signals in voltage domains utilizing the domain splitters, modulating received optical signals in the waveguides of the optical modulator by driving diodes with the electrical signals generated in the voltage domains, and generating a modulated output signal through interference of the modulated optical signal in the waveguides of the optical modulator. The delay lines may comprise one delay element per domain splitter, or may comprise a delay element per domain splitter for a first subset of the domain splitters and more than one delay element per domain splitter for a second subset of the domain splitters.