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公开(公告)号：US20180269844A1
公开(公告)日：2018-09-20
申请号：US15458698
申请日：2017-03-14
Applicant: Futurewei Technologies, Inc.
Inventor： Lei Jing , Peter Ossieur , Ning Cheng , Naresh Chand
Abstract: An optical network system comprising an optical line terminal (OLT) and an optical network unit (ONU) coupled to the OLT and configured to communicate with the OLT via an optical signal. At least one of the OLT or the ONU comprises a closed-loop gain controlled transimpedance amplifier (TIA) comprising a first amplifier configured to receive an input signal, generate a main output signal by amplifying the input signal according to a gain factor of the first amplifier, and generate an auxiliary output proportional to the input signal, an average detector coupled to the first amplifier and configured to receive the auxiliary output, and determine an average of the input signal according to the auxiliary output, and a feedback loop coupled to the first amplifier and the average detector and configured to control the gain factor of the first amplifier according to the average of the input signal.
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2.发明申请公开(公告)号：US20170371110A1
公开(公告)日：2017-12-28
申请号：US15623176
申请日：2017-06-14
Applicant: Futurewei Technologies, Inc.
Inventor： Ning Cheng , Wenbiao Zhong
CPC classification number: G02B6/4206 , G02B6/4214 , G02B6/4246 , H01S5/0071 , H01S5/0224 , H01S5/02248 , H01S5/02284 , H01S5/02292 , H01S5/12 , H04B10/40 , H04B10/503
Abstract: An optical device comprises a laser diode configured to emit an optical signal, wherein the optical signal diffracts into a plurality of emitted optical signals, and a submount comprising a mirror, wherein the mirror is configured to at least partially reflect and redirect the plurality of emitted optical signals to produce a plurality of reflected optical signals, and wherein the mirror is further configured to substantially reshape a vertical far field angle of the optical signal.
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3.发明授权Self-seeded colorless burst-mode transmitter using reflective semiconductor optical amplifier and injection locked Fabry-Perot laser 有权使用反射半导体光放大器和注射锁定法布里 - 珀罗激光器的自播无色突发模式发射机公开(公告)号：US09287987B2
公开(公告)日：2016-03-15
申请号：US13691758
申请日：2012-12-01
Applicant: Futurewei Technologies, Inc.
Inventor： Ning Cheng
CPC classification number: H04B10/501 , G02B6/26 , H04B10/506
Abstract: An apparatus comprises an optical port; a first optical transmitter; a second optical transmitter; a partially reflective mirror positioned between the first optical transmitter, the second optical transmitter, and the optical port; and an optical rotator positioned between the partially reflective mirror and the first optical transmitter.
Abstract translation: 一种装置包括光口; 第一个光发射机; 第二光发射机; 位于第一光发射器，第二光发射器和光端口之间的部分反射镜; 以及位于所述部分反射镜和所述第一光发射器之间的旋光器。
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4.发明授权公开(公告)号：US09106400B2
公开(公告)日：2015-08-11
申请号：US13658341
申请日：2012-10-23
Applicant: Futurewei Technologies, Inc.
Inventor： Ning Cheng
CPC classification number: H04L7/0335 , H04L7/0331
Abstract: An apparatus for coarse phase alignment of an analog signal comprising: a tapped delay line, a coarse phase alignment logic circuit coupled to the tapped delay line, and a selector coupled to the tapped delay and the coarse phase alignment logic circuit. An apparatus for timing and data recovery for burst mode receivers comprising: a receiver, a coarse phase alignment circuit coupled to the receiver, at least one analog to digital converter (ADC) coupled to the coarse phase alignment circuit such that the coarse phase alignment circuit is positioned between the receiver and the ADC, and a fine phase alignment circuit coupled to the ADC such that the ADC is positioned between the coarse phase alignment circuit and the fine phase alignment circuit, wherein the fine phase alignment circuit produces a recovered data output.
Abstract translation: 一种用于模拟信号的粗略对准的装置，包括：抽头延迟线，耦合到抽头延迟线的粗相位对准逻辑电路，以及耦合到抽头延迟的选择器和粗相位对准逻辑电路。 一种用于突发模式接收机的定时和数据恢复的装置，包括：接收机，耦合到接收机的粗略相位对准电路，耦合到粗略相位对准电路的至少一个模数转换器（ADC），使得粗略相位对准电路 位于接收器和ADC之间，并且精细相位对准电路耦合到ADC，使得ADC位于粗略对准电路和精细相位对准电路之间，其中精细相位对准电路产生恢复的数据输出。
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公开(公告)号：US20180191133A1
公开(公告)日：2018-07-05
申请号：US15822961
申请日：2017-11-27
Applicant: Futurewei Technologies, Inc.
Inventor： Ning Cheng
CPC classification number: H01S5/101 , H01S3/0315 , H01S3/0675 , H01S3/076 , H01S5/026 , H01S5/0425 , H01S5/1007 , H01S5/1014 , H01S5/12 , H01S5/4006 , H01S5/4068
Abstract: A laser apparatus is provided, comprising a semiconductor substrate, an active layer disposed on the semiconductor substrate, a folded waveguide disposed on the active layer and forming a resonant structure, the folded waveguide comprising at least two substantially straight waveguide portions coupled by a connecting waveguide structure, with the folded waveguide having a first end and a second end located at one or more edges of the semiconductor substrate, wherein at least one of the ends includes a mirror, and an electrode coupled to the folded waveguide and configured to create photons in the folded waveguide when receiving electrical power. The waveguide emits laser light comprising the photons, with the laser light emitted at an edge of the semiconductor substrate.
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Patent Agency Ranking
公开(公告)号：US09479264B2
公开(公告)日：2016-10-25
申请号：US13930301
申请日：2013-06-28
Applicant: Futurewei Technologies, Inc.
Inventor： Ning Cheng , Guo Wei , Zhenxing Liao
CPC classification number: H04B10/60 , H04B10/6911
Abstract: An apparatus comprising a receiver optical subassembly (ROSA) configured to receive an optical signal, wherein the ROSA comprises an optical-electrical (O/E) converter configured to convert the optical signal into an electrical signal, and a processor coupled to the ROSA and configured to calibrate an O/E converter bias, wherein calibrating the O/E converter bias comprises reading an initial O/E converter dark current measurement, adjusting the O/E converter bias with a voltage step, reading an adjusted O/E converter dark current measurement after the voltage step adjustment, and monitoring an O/E converter dark current change rate by subtracting the initial O/E converter dark current measurement from the adjusted O/E converter dark current measurement.
Abstract translation: 一种装置，包括被配置为接收光信号的接收机光子组件（ROSA），其中所述ROSA包括被配置为将所述光信号转换成电信号的光电（O / E）转换器，以及耦合到所述ROSA的处理器， 配置为校准O / E转换器偏置，其中校准O / E转换器偏置包括读取初始O / E转换器暗电流测量，用电压步长调整O / E转换器偏置，读取经调整的O / E转换器暗 电压阶跃调整后的电流测量，并通过从调整后的O / E转换器暗电流测量中减去初始O / E转换器暗电流测量来监控O / E转换器的暗电流变化率。
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7.发明申请Re-Modulation Crosstalk and Intensity Noise Cancellation in Wavelength-Division Multiplexing (WDM) Passive Optical Networks (PONs) 有权波分复用（WDM）无源光网络（PON）中的重调制串扰和强度噪声消除公开(公告)号：US20160105251A1
公开(公告)日：2016-04-14
申请号：US14872563
申请日：2015-10-01
Applicant: Futurewei Technologies, Inc.
Inventor： Ning Cheng
IPC: H04J14/02 , H04B10/2575
CPC classification number: H04B10/25759 , H04B10/2587 , H04J14/0242
Abstract: An apparatus comprising a signal generator configured to produce a modulation signal, a filter coupled to the signal generator and configured to filter the modulation signal to produce a cancellation signal, and a reflective semiconductor optical amplifier (RSOA) coupled to the signal generator and the filter, wherein the RSOA is configured to generate an optical signal according to a difference between the modulation signal and the cancellation signal and transmit the optical signal towards a partial reflection mirror (PRM).
Abstract translation: 一种装置，包括被配置为产生调制信号的信号发生器，耦合到所述信号发生器并被配置为滤波所述调制信号以产生抵消信号的滤波器以及耦合到所述信号发生器和所述滤波器的反射半导体光放大器（RSOA） ，其中所述RSOA被配置为根据所述调制信号和所述消除信号之间的差产生光信号，并将所述光信号发射到部分反射镜（PRM）。
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公开(公告)号：US20150280826A1
公开(公告)日：2015-10-01
申请号：US14203832
申请日：2014-03-11
Applicant: FUTUREWEI TECHNOLOGIES, INC.
Inventor： Frank Effenberger , Ning Cheng
IPC: H04B10/2581 , H04J14/08 , H04B10/27
CPC classification number: H04B10/2581 , H04B10/2507 , H04B10/27 , H04J14/0282 , H04J14/04 , H04J14/08
Abstract: An optical line terminal (OLT) comprising a receiver configured to couple to a mode coupler via a multi-mode optical fiber that supports more than one optical communication mode, and couple to a plurality of optical network units (ONUs) via the mode coupler, a processor coupled to the receiver and configured to schedule upstream multi-mode transmissions from the ONUs via the multi-mode fiber and the mode coupler by employing time division multiplexing (TDM), and a transmitter coupled to the processor and configured to transmit schedule data to the ONUs.
Abstract translation: 一种光线路终端（OLT），包括被配置为通过支持多于一种光通信模式的多模光纤耦合到模耦合器并经由模耦合器耦合到多个光网络单元（ONU）的接收器， 处理器，其耦合到所述接收器并且被配置为经由所述多模光纤和所述模式耦合器通过采用时分多路复用（TDM）来调度来自所述ONU的上游多模传输;以及发射器，耦合到所述处理器并被配置为传送调度数据 到ONU。
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公开(公告)号：US20130294776A1
公开(公告)日：2013-11-07
申请号：US13934781
申请日：2013-07-03
Applicant: Futurewei Technologies, Inc.
Inventor： Ning Cheng , Frank J. Effenberger
IPC: H04J14/02
CPC classification number: H04J14/02 , G02B6/12004 , G02B6/4206 , G02B6/421 , H04B10/2581 , H04B10/272 , H04J14/0282 , H04J14/04
Abstract: Disclosed herein is an apparatus comprising a plurality of separators configured to forward a plurality of optical signals from a plurality of optical network terminals (ONTs) along a plurality of single mode waveguides, a mode coupler coupled to the single mode waveguides and configured to receive the optical signals from the plurality of separators and combine the optical signals into a multi-mode waveguide, and an optical receiver coupled to the mode coupler via the multi-mode waveguide and configured to detect the optical signals. Also disclosed is a method comprising receiving a plurality of single mode optical channels, coupling the single mode optical channels into a multimode channel, and detecting the optical modes corresponding to the channels in the multimode channel.
Abstract translation: 本文公开了一种装置，包括多个分离器，其被配置为沿着多个单模波导从多个光网络终端（ONT）转发多个光信号;耦合到单模波导的模耦合器，并且被配置为接收 来自多个分离器的光信号并将光信号组合成多模波导，以及光接收器，经由多模波导耦合到模耦合器，并被配置为检测光信号。 还公开了一种方法，包括接收多个单模光信道，将单模光信道耦合到多模信道中，以及检测对应于多模信道中的信道的光模。
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公开(公告)号：US10079584B1
公开(公告)日：2018-09-18
申请号：US15458698
申请日：2017-03-14
Applicant: Futurewei Technologies, Inc.
Inventor： Lei Jing , Peter Ossieur , Ning Cheng , Naresh Chand
Abstract: An optical network system comprising an optical line terminal (OLT) and an optical network unit (ONU) coupled to the OLT and configured to communicate with the OLT via an optical signal. At least one of the OLT or the ONU comprises a closed-loop gain controlled transimpedance amplifier (TIA) comprising a first amplifier configured to receive an input signal, generate a main output signal by amplifying the input signal according to a gain factor of the first amplifier, and generate an auxiliary output proportional to the input signal, an average detector coupled to the first amplifier and configured to receive the auxiliary output, and determine an average of the input signal according to the auxiliary output, and a feedback loop coupled to the first amplifier and the average detector and configured to control the gain factor of the first amplifier according to the average of the input signal.
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