Alcatel Lucent

Future Wei Technologies, Inc.

Lucent Technologies Inc.

Alcatel-lucent USA Inc.

Huawei Technologies Co., Limited

Oracle International Corporation

Lgs Innovations LLC

Raycan Technology Co., Ltd (su Zhou)

Jiangsu Xingda Steel Tyre Cord Co., Ltd.

Sun Microsystems, Inc.

Picateer, Inc.

Picateers, Inc.

Xiang Liu

Frank J Effenberger

Huaiyu Zeng

Chandrasekhar Sethumadhavan

Xing Wei

Lawrence W Jacobs

Yuanqiu Luo

Robert William Tkach

Shehzaad Nakhoda

Peter Johannes Winzer

Douglas Max Gill

Zheng Zeng

Lei Zhou

Andy Shen

Andrew Roman Chraplyvy

Randy Clinton Giles

Daniel A Fishman

Rajiv Mishra

Chongjin Xie

Ning Cheng

Chunhui Xu

Yuan-Hua Kao

Fredric Scott Goell

Alan H Gnauck

Huafeng Lin

Shu Ling

Yikai Su

Shuchang Yao

Tie Zhong

Bo Gao

Wei Liu

Guozhu Long

Linn F Mollenauer

Adriaan J De Lind Van Wijngaarden

Guangzhi Li

Qingguo Xie

Thomas Huntington Wood

Robert Scott Windeler

Sachin Desai

Lothar Benedict Erhard Josef Moeller

Lin Huang

David S Levy

Daoming Xi

Moncef B Tayahi

Xianbo Dai

Shengming Ma

Haidong Yao

Christopher Richard Doerr

David John DiGiovanni

Mooi Choo Chuah

Roger J Bamford

Stefan Hunsche

Benjamin John Eggleton

Ramesh Nagarajan

Derrick Remedios

Alexander J Somogyi

Richart Elliott Slusher

Steven K Korotky

Christophe Jean Dorrer

Zhiyong Feng

Colin Geoffrey Kelly

Shyam Parekh

Muhammad A Qureshi

Priscilla C Fung

Sandra Greenberg Kosinski

Gary Weldon Atkinson

Colin J McKinstrie

William A Thompson

Carsten Metz

Juerg Leuthold

Haixiang Liang

Mihaela Dinu

Timo Pfau

William Alan Wright

Giancarlo Gavioli

Xu Zhou

Charles Kerbage

Mahan Movassaghi

Jinpin Ying

Linlin Li

Vincent J Silverio

Huihua Wen

Minghui Tao

Song Jiang

James Feenan

Ramkumar Venketaramani

Xiaoli Qi

Senthilnathan Arunagirinathan

Weigang Miao

Juhi Chandalia

Chen Zeng

Ian Luo

Siyu Zhou

Yannick Keith Lize

Alok Agrawal

Leslie Bruce Lowenthal

Jiang Qi

Liang Song

Xiao Sun

Yuhui Zhu

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.

Semiconductor laser with a mode expansion layer

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.

Passive optical network (PON) frame design

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.

Frame coding and optical network unit (ONU) synchronization in passive optical networks (PONs)

An apparatus comprises a first mirror; a second mirror; a modulation layer positioned between the first mirror and the second mirror and comprising a plurality of modulation regions; a diffraction layer positioned between the modulation layer and the second mirror, and an input port admitting a light beam into the apparatus. The light beam passes through the diffraction layer and is modulated by the modulation layer to create a first modulated beam before being reflected by the first mirror, the first mirror reflecting the first modulated beam toward the second mirror, the second mirror reflecting the first modulated beam toward the modulation layer to be modulated for at least a second time.

Diffractive deep neural network (D2NN) processing using a single modulation layer

A communication method and device are provided for communication in a point-to-multi-point communication network. A communication method includes receiving, by a node of a plurality of multi-point nodes, a transmission frame comprising a header including a repetition information and a data section comprising multiple modulation symbols, with at least two repeated modulation symbols that are repeated to represent a first modulation symbol; extracting, by the node, the repetition information of the header; recovering, by node, the amplitude of each modulation symbol of the at least two repeated modulation symbols; and combining, by the node, the amplitudes of the at least two repeated modulation symbols, based on the repetition information, to reconstruct the first modulation symbol represented by the at least two repeated modulation symbols.

Communication method and apparatus in a point-to-multipoint communication network

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.

Passive optical network (PON) synchronization and clock recovery

Disclosed are a cable bead and a tire. The cable bead includes a core wire located at the middle position of the bead and at least one layer of outer winding wires wound around the core wire, each layer of outer winding wires being evenly wounded along the circumferential direction of the core wire, where the cross section of the outer winding wires is a flat surface having a major axis and a minor axis; the major axis is perpendicular to the radial direction of the cross section of the bead, and the minor axis is parallel to the radial direction of the cross section of the bead; the outer winding wires are in surface contact with the core wire; and when there are at least two layers of outer winding wires, a line contact is formed between the layers of outer winding wires.

Cable bead and tire

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.

Multi-rate interleaved downstream frames in passive optical networks (PONs)

An OLT comprises a processor configured to: obtain optical powers associated with ONUs, and generate an instruction instructing a transmit order of transmissions based on the optical powers; a transmitter coupled to the processor and configured to transmit the instruction to the ONUs; and a receiver coupled to the processor and configured to receive the transmissions from the ONUs based on the instruction. An apparatus comprises a receiver configured to receive an instruction instructing a transmit order of transmissions based on optical powers associated with ONUs; a processor coupled to the receiver and configured to process the instruction; and a transmitter coupled to the processor and configured to transmit a transmission based on the instruction.

Optical network power conservation

A signal processing method and apparatus are provided. The method includes: receiving an optical signal in a target receive channel, and converting the optical signal into an electrical signal; determining, in the converted electrical signal, an electrical signal associated with a non-overlapping frequency band between the target receive channel and another channel, where the another channel is a channel that overlaps the target receive channel; and determining, based on the electrical signal associated with the non-overlapping frequency band, an electrical signal corresponding to a valid received optical signal that does not include an interfering optical signal in the target receive channel. According to the application, the target transmit channel and the another channel are set to channels that overlap each other, thereby reducing bandwidths occupied by the channels. In the method provided in the embodiments of this disclosure, spectrum utilization can be improved, thereby improving a data transmission rate.

Signal processing method and apparatus

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.

Multiple-rate optical network unit (ONU) activation

The disclosure relates to technology for signal transmission in an optical communication system. An optical transmitter comprises a directly modulated laser (DML) configured to generate a modulated optical signal in response to a modulation signal. The modulated optical signal comprises a first frequency corresponding to a logical one value in the modulation signal and a second frequency corresponding to a logical zero value in the modulation signal. The modulated optical signal has a modulation symbol rate of 'R'. The transmitter comprises a controller configured to control the DML to establish a target frequency gap between the first frequency and the second frequency. The transmitter also comprises an optical band pass filter (OBPF) coupled to the DML to receive the modulated optical signal and output a filtered optical signal. The OBPF has a 3-dB bandwidth of less than R.

Optical communication system

Disclosed are a metal wire, a manufacturing method therefor, and a tire. The metal wire is made by twisting a filament; an outer peripheral surface of the filament is covered with a Cu-M-Zn alloy coating; the outer peripheral surface of the filament is also covered with a Cu&#x2014;Zn alloy coating; the metal wire is made of at least one filament; an area covered by the Cu-M-Zn alloy coating is 10%-90% of an area of the outer peripheral surface of the filament, and the rest is the Cu&#x2014;Zn alloy coating; M in the Cu-M-Zn alloy coating is selected from one or two of Co, Ni, Mn, or Mo; the mass fraction of Cu in the Cu-M-Zn alloy coating is 58%-72%, the mass fraction of M in the Cu-M-Zn alloy coating is 0.5%-5%, and the balance in the Cu-M-Zn alloy coating is Zn and inevitable impurities.

Metal wires, manufacturing methods therefor and tires

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.

Communication in passive optical networks (PONs) related to digital signal processing for optical signal (oDSP)

An ONU comprises a receiver configured to receive a continuous-mode TDMA downstream signal from an OLT; a PD coupled to the receiver and configured to convert the continuous-mode TDMA downstream signal to an electrical signal or an RF signal; an ADC coupled to the PD and configured to convert the electrical signal or the RF signal to a digital signal; and a burst-mode data recovery stage coupled to the ADC and configured to perform data recovery on a segment of the digital signal corresponding to the ONU, the burst-mode data recovery stage comprises a synchronization stage configured to perform synchronization on the segment.

Reduced power consumption for digital signal processing (DSP)-based reception in time-division multiplexing (TDM) passive optical networks (PONs)

Growing community of inventors

Marlboro, NJ, United States of America

Xiang Liu