公开(公告)号：US20220115841A1

公开(公告)日：2022-04-14

申请号：US17561187

申请日：2021-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ning Cheng ,  Xiang Liu ,  Frank Effenberger

IPC: H01S5/22 ,  H01S5/20 ,  H01S5/34 ,  H01S5/343

Abstract: A semiconductor laser comprises: a substrate; a first cladding layer disposed above the substrate; a second cladding layer disposed above the first cladding layer so that the first cladding layer is positioned between the substrate and the second cladding layer; and a first mode expansion layer within the first cladding layer, a second mode expansion layer within the second cladding layer, or both the first mode expansion layer within the first cladding layer and the second mode expansion layer within the second cladding.

公开(公告)号：US20210036486A1

公开(公告)日：2021-02-04

申请号：US17074334

申请日：2020-10-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ning Cheng ,  Xiang Liu ,  Frank Effenberger

IPC: H01S5/026 ,  H01S5/042 ,  H01S5/22 ,  H01S5/12

Abstract: A laser chip comprises a first lateral portion comprising a first metal stripe, a first lateral connector coupled to the first metal stripe, a second metal stripe, and a second lateral connector coupled to the second metal stripe; a second lateral portion coupled to the first lateral portion and comprising a first bonding pad coupled to the first lateral connector, and a second bonding pad coupled to the second lateral connector. A method of DFB laser chip fabrication, the method comprises depositing a first portion of a passivation layer; depositing a second metal stripe; depositing a second portion of the passivation layer; and depositing a first metal stripe.

公开(公告)号：US20200304209A1

公开(公告)日：2020-09-24

申请号：US16898860

申请日：2020-06-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Liu ,  Ning Cheng ,  Frank Effenberger

IPC: H04B10/50 ,  H04B10/61 ,  H04B10/524

Abstract: An apparatus comprises: a receiver; a transmitter; a laser device coupled to the receiver and the transmitter and comprising: a first laser configured to provide to the receiver a first optical wave centered at a first frequency, and a second laser configured to provide to the transmitter a second optical wave centered at a second frequency, the first frequency and the second frequency have a predetermined frequency spacing; and a processor coupled to the receiver, the transmitter, and the laser device, with the processor configured to control the first laser and the second laser to maintain the predetermined frequency spacing.

公开(公告)号：US20250088301A1

公开(公告)日：2025-03-13

申请号：US18962475

申请日：2024-11-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shuqian Zheng ,  Xiang Liu ,  Wei Su

IPC: H04J14/08

Abstract: Embodiments of this application provide a service data processing method. The method includes: receiving service data, performing encapsulation, rate adaptation, and timeslot multiplexing on the service data by code block to obtain an intermediate frame, mapping the intermediate frame to an OTN frame, and sending the OTN frame. A size of the code block is a plurality of bytes, and the code block includes information indicating a code block type. If the code block is an overhead code block or a rate adaptation code block, the code block further includes information indicating a timeslot multiplexing layer at which the code block is located.

公开(公告)号：US12199758B2

公开(公告)日：2025-01-14

申请号：US17449790

申请日：2021-10-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Liu ,  Frank Effenberger ,  Linlin Li ,  Huaiyu Zeng ,  Yuanqiu Luo

IPC: H04L1/00 ,  H04B10/50 ,  H04B10/66

Abstract: A method comprises generating a PON frame comprising a plurality of FEC codewords, the FEC codewords comprise a first codeword, and the first codeword comprises a PSB; and transmitting the PON frame. A method comprises receiving a PON frame comprising a plurality of FEC codewords, the FEC codewords comprise a first codeword, and the first codeword comprises a PSB; and processing the PON frame.

公开(公告)号：US20230019473A1

公开(公告)日：2023-01-19

申请号：US17944902

申请日：2022-09-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Andy Shen ,  Xiang Liu ,  Yuanqiu Luo ,  Frank Effenberger

IPC: H04L1/00

Abstract: A method is implemented by an ONU in a 50G-PON. The method comprises receiving an encoded DS PHY frame from an OLT, the encoded DS PHY frame comprises an FEC codeword, the FEC codeword comprises an SFC field and a payload, and the SFC field and the payload are encoded with a same FEC; decoding the FEC codeword using the FEC to obtain a decoded SFC field and the payload; performing a first verification of the decoded SFC field while in a sync state of a synchronization state machine; and staying in the sync state when the first verification is successful or exiting the sync state when the first verification is unsuccessful.

公开(公告)号：US11516563B2

公开(公告)日：2022-11-29

申请号：US17027438

申请日：2020-09-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huaiyu Zeng ,  Yuanqiu Luo ,  Andy Shen ,  Xiang Liu ,  Frank Effenberger

IPC: H04Q11/00 ,  H04J3/06

Abstract: An ONU is provided. The ONU comprises a receiver configured to receive a first PON frame from an OLT, the first PON frame comprising a first PSBd field, the first PSBd field comprising a first PSync field, the first PSync field comprising first bits, and a first quantity of the first bits being greater than 64 bits; and a processor coupled to the receiver and configured to perform synchronization of the first PON frame by matching the first bits to a pre-stored sequence.

公开(公告)号：US20210176544A1

公开(公告)日：2021-06-10

申请号：US17153461

申请日：2021-01-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanqiu Luo ,  Frank Effenberger ,  Bo Gao ,  Xiang Liu

IPC: H04Q11/00 ,  H04J14/02

Abstract: A method implemented by an optical line terminal (OLT) comprising a memory storage comprising instructions, a processor in communication with the memory, wherein the processor executes the instructions to generate a multi-rate downstream frame having a pre-defined length, the multi-rate downstream frame comprising a plurality of subframes that are each associated with a respective data rate, and a transmitter coupled to the processor and configured to transmit each subframe of the plurality of subframes of the multi-rate downstream frame at the respective data rate.

公开(公告)号：US20210006346A1

公开(公告)日：2021-01-07

申请号：US17024466

申请日：2020-09-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang Liu ,  Yuanqiu Luo ,  Huaiyu Zeng ,  Andy Shen ,  Frank Effenberger

IPC: H04J14/02 ,  H04B10/556

Abstract: A first apparatus in an optical communications network, the first apparatus comprises a transmitter; a receiver; a first MAC; and a first oDSP coupled to the transmitter, the receiver, and the first MAC and configured to communicate a message via a dedicated C&M channel with at least one of the first MAC, a second MAC in a second apparatus in the optical communications network, or a second oDSP in the second apparatus. A method comprises receiving an FS message comprising a PLOAM field, the PLOAM field contains oDSP-related C&M information, and the oDSP-related C&M information comprises a message type ID field and a Message_Content field; reading the message type ID field; and deciding, based on the message type ID field, whether to read the Message_Content field.

公开(公告)号：US20200344534A1

公开(公告)日：2020-10-29

申请号：US16926070

申请日：2020-07-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanqiu Luo ,  Bo Gao ,  Frank Effenberger ,  Xiang Liu

IPC: H04Q11/00

Abstract: An OLT comprises a processor configured to generate a first message comprising a first field instructing an ONU to report its data rate capability as at least one of 10 Gb/s, 25 Gb/s, or 50 Gb/s; a transmitter coupled to the processor and configured to transmit the first message to the ONU; and a receiver coupled to the processor and configured to receive a second message from the ONU in response to the first message, the second message comprises a second field indicating the data rate capability. A method comprises generating a first message comprising a first field instructing reporting of a data rate capability as at least one of 10 Gb/s, 25 Gb/s, or 50 Gb/s; transmitting the first message; and receiving a second message in response to the first message, the second message comprises a second field indicating the data rate capability.