公开(公告)号：EP3376688B1

公开(公告)日：2024-04-24

申请号：EP18162357.0

申请日：2018-03-16

IPC分类号： H04B10/079 ,  H04B10/61 ,  H04J14/02

CPC分类号： H04B10/07957 ,  H04B10/616 ,  H04J14/02

公开(公告)号：EP3402094A1

公开(公告)日：2018-11-14

申请号：EP16888646.3

申请日：2016-02-02

申请人： Huawei Technologies Co., Ltd.

发明人： WANG, Tao ,  LIU, Ning

IPC分类号： H04B10/00 ,  H04B10/50 ,  H04J14/02

CPC分类号： H04B10/00 ,  H04B10/50 ,  H04J14/02

摘要： An optical reflective multiplexer chip (42), a laser transmitter chip (40), and an optical transmitter (4) are disclosed, to resolve a problem that currently a colorless optical transmitter (4) based on a self-injection locking technology has high costs. The optical transmitter (4) includes: the laser transmitter chip (40), an optical fiber (41), and the optical reflective multiplexer chip (42). The laser transmitter chip (40) includes a bi-directional light emitting laser (400), a polarization splitter-rotator (401), and a first external port (402). The optical reflective multiplexer chip (42) includes a combiner (420), a second external port (421), N third external ports (422), N microring resonant cavities (423), N polarization splitter-rotators (424), N first branch waveguides (425), and N second branch waveguides (426), where N is a positive integer and is greater than or equal to 1. The combiner (420) is connected to the first branch waveguide (425), the second branch waveguide (426), and the second external port (421). The first external port (402) is connected to the third external port (422) by using the optical fiber (41).

公开(公告)号：EP2945396B1

公开(公告)日：2018-10-24

申请号：EP15165674.1

申请日：2015-04-29

申请人： LSIS Co., Ltd.

发明人： Park, Ho Hwan ,  Sheng, Ming ,  Kartiwa, Iwa

IPC分类号： H04Q9/00 ,  G08C23/06 ,  G01R15/24 ,  G01D5/353

CPC分类号： H02M5/44 ,  G01R19/2513 ,  G01R19/252 ,  G08C23/06 ,  H04J14/02 ,  H04Q9/00

摘要： A data processing device in a high voltage direct current (HVDC) transmission system is provided. The data processing device includes a measurement module measuring a voltage or current for one or more points in the HVDC system; a data processing unit generating measurement data units using measurement values measured at the measurement module; and a communication module using wavelength division multiplexing to transmit the measurement data units to the outside through one optical fiber, wherein the optical fiber includes a plurality of cores.

公开(公告)号：EP2030353B1

公开(公告)日：2018-10-10

申请号：EP07777296.0

申请日：2007-05-29

申请人： Nytell Software LLC

发明人： MENENDEZ, Ronald, C.

IPC分类号： H04J14/00 ,  H04J14/02

CPC分类号： H04J14/02 ,  H04J14/007

摘要： The invention is directed to code labeling in an optical network. The network includes a transmitting station operable to transmit an optical signal. The network also includes an encoder coupled to the transmitting station operable to label the optical signal composed of a group of codes. A receiving station operable to receive the labeled group of optical codes is also provided. The receiving station is operable to read the optical signal if the label of the received group of codes corresponds to the group of codes assigned to the receiving station.

公开(公告)号：EP3378175A1

公开(公告)日：2018-09-26

申请号：EP16819654.1

申请日：2016-11-18

申请人： Alcatel Lucent

发明人： GAO, Zhensen

IPC分类号： H04B10/50 ,  H04B10/272

CPC分类号： H04B10/504 ,  H04B10/27 ,  H04B10/516 ,  H04B10/54 ,  H04J14/02 ,  H04J14/08

摘要： A transmitter for an optical network unit, includes a 2.5 Gb/s direct modulation laser, for generating an uplink optical signal; wherein the direct modulation laser is driven by a modulation current and a bias current, and the bias current is configured to be greater than a threshold current of the direct modulation laser, and an amplitude of the modulation current is such configured that a difference between a frequency of 1 bit and a frequency of 0 bit of the uplink optical signal is a half of a transmission rate of the uplink optical signal.

公开(公告)号：EP3376694A1

公开(公告)日：2018-09-19

申请号：EP16866694.9

申请日：2016-11-18

申请人： Solid, Inc.

发明人： KIM, Tae Hyeong ,  CHANG, Won Song ,  YU, Sun Keun

IPC分类号： H04J14/02 ,  H04B10/079

CPC分类号： H04B10/07957 ,  H04B10/079 ,  H04B10/07955 ,  H04B10/27 ,  H04J14/02 ,  H04J14/0275 ,  H04J14/0293

摘要： A wavelength-setting auxiliary device according to an embodiment of the inventive concept includes an optical wavelength analyzer configured to transmit a test signal having a first wavelength to an optical line terminal, and to execute a central wavelength detection algorithm based on a result of detecting power of a return signal for the test signal to set optical wavelength information of a tunable optical module, and a connector connected to the tunable optical module for interfacing data transmitted between the optical wavelength analyzer and the tunable optical module.

公开(公告)号：EP2830239B1

公开(公告)日：2018-09-12

申请号：EP13003679.1

申请日：2013-07-23

申请人： ADVA Optical Networking SE

发明人： Grobe, Klaus ,  Elbers, Jörg-Peter ,  Griesser, Helmut ,  Eiselt, Michael

IPC分类号： H04B10/25 ,  H04J14/02 ,  H04B10/516

CPC分类号： H04B10/2575 ,  H04B10/2503 ,  H04B10/5167 ,  H04J14/02 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

摘要： The invention relates to a method for bi-directionally transmitting digital optical signals over an optical transmission link, wherein a first optical transmit signal (S1 TX,CHI ) at a predetermined optical wavelength is supplied to a first end of the optical transmission link and transmitted in a first transmission direction to a second end of the optical transmission link, wherein a second optical transmit signal (S2 TX,CHI ) at said predetermined optical wavelength is supplied to the second end of the optical transmission link and transmitted in a second opposite transmission direction to the first end of the optical transmission link, wherein said first optical transmit signal (S1 TX,CHI ) is created according to a first binary digital signal (S1 TXI ) in such a way that the bit information of the first binary digital signal (S1 TXI ) is included in first sections of the symbol interval of the first optical transmit signal, and wherein said second optical transmit signal (S2 TX,CHI ) is created by creating an optical wavelength reuse signal using the first optical transmit signal (S1 TX,CHI ) received at the second end of the optical transmission link, the optical wavelength reuse signal being modulated according to a second digital signal in such a way that the bit information of the second digital signal is included in second sections of the symbol interval of the first optical transmit signal (S1 TX,CHI ) received. According to the invention, the first binary digital signal (S1 TXI ) is a non-retum-to-zero signal and the first optical transmit signal (S1 TX,CHI ) is an optical bit-interleaved seeding signal having a symbol rate equal to the bit rate of the first binary digital signal (S1 TXI ), wherein the symbol interval of the optical bit-interleaved seeding signal is divided Into two equally long sub-intervals, the bit Information of the first binary digital signal (S1 TXI ) being transported in a first of the two sub-intervals and the second sub-intervals being set to a seeding level with respect to the optical power.

公开(公告)号：EP3116234B1

公开(公告)日：2018-08-29

申请号：EP15176082.4

申请日：2015-07-09

申请人： Mitsubishi Electric R&D Centre Europe B.V. ,  Mitsubishi Electric Corporation

发明人： FROC, M. Gwillerm

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0067 ,  H04J14/02 ,  H04Q2011/0064 ,  H04Q2011/0079 ,  H04Q2011/0088

摘要： The invention relates to a method for transmitting signalling information via an out-of-band communication channel in an optical communications network comprising a master device and slave, the signalling information containing identifying information aiming at identifying the slave device transmitting said signalling information, the optical communications network being adapted to enable in-band communications, the out-of-band communication channel being intended to enable transmissions of said signalling information with respect to the in-band communications, collisions occurring in the out-of-band communication channel when plural slave devices access the out-of-band communication channel by using respective carrier wavelengths that match each other. The master device transmits information representative at least of a mask that said slave devices have to apply to respective full identifiers so as to obtain respective reduced identifying information to be used by said slave devices within further signalling information to be respectively transmitted by said slave devices, the reduced identifying information aiming at containing enough bits to enable distinguishing the slave device from each other.

公开(公告)号：EP3043496B1

公开(公告)日：2018-08-29

申请号：EP15198636.1

申请日：2015-12-09

申请人： FUJITSU LIMITED

发明人： Tanaka, Toshiki ,  Nishihara, Masato ,  Takahara, Tomoo

IPC分类号： H04J14/02 ,  H04B10/572 ,  H04L27/26

CPC分类号： H04B10/572 ,  H04J14/02 ,  H04J14/0298 ,  H04L27/2627

摘要： A transmission device includes: a plurality of modulators (13-1 to 13-4) that respectively generate multicarrier signals from given data; a distributor (12) that distributes input data to the modulators; an optical circuit (14-1 to 14-4, 15) that multiplexes the multicarrier signals to generate a WDM optical signal; and a controller (16) that obtains allocation information from a receiver of the WDM optical signal and generates a distribution instruction to control the distributor and a bit allocation instruction to control the modulators according to the allocation information. The allocation information is calculated based on transmission characteristics of each subcarrier of the respective multicarrier signals and the allocation information indicates a number of bits of data allocated to each of the subcarriers. The distributor distributes the input data to the modulators according to the distribution instruction. The modulators respectively allocate data distributed from the distributor to the subcarriers according to the bit allocation instruction to generate the multicarrier signals.

公开(公告)号：EP3358761A1

公开(公告)日：2018-08-08

申请号：EP16850619.4

申请日：2016-09-15

申请人： NEC Corporation

发明人： MIKAMI, Satoshi

IPC分类号： H04B10/291 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04B10/291 ,  H04J14/00 ,  H04J14/02

摘要： In order to provide a compact and low power consumption optical repeater capable of amplifying a plurality of wavelength ranges, the optical repeater is provided with: an excitation means which generates excitation light in a single wavelength range; a first light amplification means which is excited by the excitation light and the amplification band of which is a first wavelength range; and a second light amplification means which is excited by the excitation light and the amplification band of which is a second wavelength range different from the first wavelength range.