公开(公告)号：US20180259370A1

公开(公告)日：2018-09-13

申请号：US15453688

申请日：2017-03-08

Applicant: Nicolas K. FONTAINE ,  Peter J. WINZER ,  Haoshuo CHEN ,  Roland RYF ,  David T. NEILSON

Inventor： Nicolas K. FONTAINE ,  Peter J. WINZER ,  Haoshuo CHEN ,  Roland RYF ,  David T. NEILSON

IPC: G01D5/353

CPC classification number: G01D5/3539 ,  G01D5/35341 ,  G01D5/35354 ,  G01D5/35364 ,  G01D5/3538

Abstract: An apparatus, including: an optical sensor fiber having a first end optically couplable to receive light from a light source, wherein the optical sensor fiber is a multimode optical fiber configured to carry light in different spatial propagating modes, wherein the optical sensor fiber is constructed such that environmental fluctuations couple light energy between some of the spatial propagating modes; a spatial propagating mode demultiplexer optically coupled to a second end the optical sensor fiber and configured to separate a plurality of light signals received from different ones of the spatial propagating modes; and an optical receiver configured to process the separated light signals and to estimate a longitudinal position of one of the environmental fluctuations along the optical sensor fiber based a measured delay between arrival times of the separated light signals.

公开(公告)号：US08750723B2

公开(公告)日：2014-06-10

申请号：US11614325

申请日：2006-12-21

Applicant: David T. Neilson

Inventor： David T. Neilson

IPC: H04B10/54

CPC classification number: H04B10/505 ,  H04B10/5167

Abstract: An optical transmitter that uses half-rate electrical signals, without multiplexing them to the full rate, to generate a full-rate optical duobinary signal. In one embodiment, an optical transmitter of the invention has a Mach-Zehnder modulator (MZM) driven by two half-rate electrical data streams. A first half-rate data stream is applied to drive a first arm of the MZM. A delay element misaligns a second half-rate data stream that is synchronized with the first data stream by one half of a bit period, and the resulting misaligned data stream is applied to drive a second arm of the MZM. The MZM is configured to (i) transmit substantially no light from the feeding laser when the applied data streams have the same binary value and (ii) have a maximum transmission when the applied data streams have different binary values, thereby generating a full-rate optical duobinary signal at its output.

Abstract translation: 一种使用半速率电信号而不将它们多路复用到全速率的光发射机，以产生全速光学双二进制信号。 在一个实施例中，本发明的光发射机具有由两个半速率电数据流驱动的马赫 - 曾德调制器（MZM）。 应用前半速率数据流来驱动MZM的第一臂。 延迟元件将与第一数据流同步的第二半速率数据流与位周期的一半未对准，并且将所得到的未对准数据流应用于驱动MZM的第二臂。 MZM配置成（i）当所应用的数据流具有相同的二进制值时，并且（ii）当所应用的数据流具有不同的二进制值时具有最大传输，从而从馈送激光器基本上不发射光，从而产生全速率 光输出双二进制信号。

公开(公告)号：US08639070B2

公开(公告)日：2014-01-28

申请号：US12944939

申请日：2010-11-12

Applicant: David T. Neilson ,  Nagesh R. Basavanhally ,  Mark P. Earnshaw

Inventor： David T. Neilson ,  Nagesh R. Basavanhally ,  Mark P. Earnshaw

IPC: G02B6/28 ,  G02B6/12 ,  G02B6/26 ,  G02B6/32 ,  G02B6/10

CPC classification number: G02B6/12019 ,  G02B6/12004 ,  G02B6/4249 ,  G02B6/43 ,  H01L2224/48091 ,  H01L2224/73257 ,  H01S5/005 ,  H01S5/02252 ,  H01S5/02272 ,  H01S5/4031 ,  H04B10/506 ,  H01L2924/00014

Abstract: An optical assembly for a wavelength-division-multiplexing (WDM) transmitter or receiver that lends itself to cost-effective production-line manufacturing. In one embodiment, the fiber optic assembly has a vernier-type arrayed waveguide grating (AWG) with five optical ports at one side and fourteen optical ports at another side. Ten of the fourteen ports are optically coupled to ten photo-detectors or lasers. A selected one of the five ports is optically coupled to an external optical fiber. The coupling optics and the mounting hardware for the AWG are designed to accommodate, with few relatively straightforward adjustments performed on the production line, any configuration of the AWG in which any consecutive ten of the fourteen ports are optically coupled to the ten photo-detectors or lasers.

Abstract translation: 用于波分复用（WDM）发射器或接收器的光学组件，其适用于具有成本效益的生产线制造。 在一个实施例中，光纤组件具有在一侧具有五个光学端口并在另一侧具有十四个光学端口的游标型阵列波导光栅（AWG）。 十四个端口中的十个光耦合到十个光电检测器或激光器。 五个端口中选择的一个光耦合到外部光纤。 用于AWG的耦合光学器件和安装硬件被设计为适应在生产线上进行的相对简单的调整，AWG的任何配置，其中十四个端口中的任何连续十个光学耦合到十个光电检测器或 激光器

公开(公告)号：US20130216183A1

公开(公告)日：2013-08-22

申请号：US13399270

申请日：2012-02-17

Applicant: David T. Neilson ,  Roland Ryf

Inventor： David T. Neilson ,  Roland Ryf

IPC: G02B6/34

CPC classification number: G02F1/31 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/3512 ,  G02B6/3556 ,  G02B6/356 ,  H04J14/0212 ,  H04Q11/0005 ,  H04Q2011/0016

Abstract: A wavelength-selective cross-connect (WSXC) device having N input ports and M output ports and configured to route any set of one or more carrier wavelengths from a corresponding input port to any selected output port. In one embodiment, the WSXC device includes a diffraction grating and a beam-steering device optically coupled to each other and to the input/output ports so that each of the carrier wavelengths traverses the diffraction grating and the beam-steering device two or more times en route from the respective input port to a designated output port. Various unfolded configurations of the WSXC device are also disclosed.

Abstract translation: 具有N个输入端口和M个输出端口并且被配置为将来自相应输入端口的任何一组或多个载波波长路由到任何选择的输出端口的波长选择性交叉连接（WSXC）设备。 在一个实施例中，WSXC装置包括衍射光栅和光束转向装置，光束耦合到彼此和输入/输出端口，使得每个载波波长穿过衍射光栅和光束转向装置两次或更多次 从相应的输入端口到指定的输出端口。 还公开了WSXC设备的各种展开配置。

公开(公告)号：US20130121695A1

公开(公告)日：2013-05-16

申请号：US13293787

申请日：2011-11-10

Applicant: Pietro A.G. Bernasconi ,  David T. Neilson

Inventor： Pietro A.G. Bernasconi ,  David T. Neilson

IPC: H04J14/00

CPC classification number: H04J14/0204

Abstract: A passive arrayed-waveguide-grating (AWG) router that can be used to implement the dual functionality of a wavelength router and a 3-dB power splitter for one of its wavelength channels while functioning as a conventional wavelength router for the other wavelength channels. The passive AWG router can advantageously be used, e.g., in a WDM-PON system to reduce the insertion-loss disparity between the various wavelength channels that are being used to broadcast optical signals from an optical line terminal located at the service provider's central office, through the passive AWG router, to a plurality of optical network units located near the end users.

Abstract translation: 无源阵列波导光栅（AWG）路由器，可用于实现波长路由器和3 dB功率分配器的双功能，用于其波长通道之一，同时用作其他波长通道的常规波长路由器。 无源AWG路由器可以有利地用于例如在WDM-PON系统中，以减少用于广播来自位于服务提供商的中心局的光线路终端的光信号的各种波长信道之间的插入损耗差异， 通过无源AWG路由器到位于最终用户附近的多个光网络单元。

公开(公告)号：US20130077976A1

公开(公告)日：2013-03-28

申请号：US13247760

申请日：2011-09-28

Applicant: Po Dong ,  David T. Neilson

Inventor： Po Dong ,  David T. Neilson

IPC: H04J14/02 ,  H04J14/00

CPC classification number: H04B10/506 ,  G02B6/29386 ,  H04J14/02 ,  H04L27/2697

Abstract: An optical multi-wavelength transmitter comprising an optical interleaver with at least a first optical waveguide and a second optical waveguide; a first plurality of microcavity modulators coupled to the first optical waveguide and a second plurality of microcavity modulators coupled to the second waveguide. A plurality of optical wavelengths received at an input of the interleaver are separated into a first group of separated optical wavelengths for being input in the first optical waveguide and a second group of separated optical wavelengths for being input in the second optical waveguide. Each one of the first and the second group of separated optical wavelengths have a separated wavelength spacing between adjacent separated optical wavelengths. A method of optical multi-wavelength transmission is also disclosed.

Abstract translation: 一种光学多波长发射机，包括具有至少第一光波导和第二光波导的光交织器; 耦合到第一光波导的第一多个微腔调制器和耦合到第二波导的第二多个微腔调制器。 在交织器的输入处接收的多个光波长被分离成第一组分离的光波长，用于在第一光波导中输入，第二组分离的光波长用于输入到第二光波导中。 第一组和第二组分离的光波长中的每一个在相邻的分离的光波长之间具有分离的波长间隔。 还公开了一种光学多波长透射的方法。

公开(公告)号：US20120087623A1

公开(公告)日：2012-04-12

申请号：US12944939

申请日：2010-11-12

Applicant: David T. Neilson ,  Nagesh R. Basavanhally ,  Mark P. Earnshaw

Inventor： David T. Neilson ,  Nagesh R. Basavanhally ,  Mark P. Earnshaw

IPC: G02B6/28

CPC classification number: G02B6/12019 ,  G02B6/12004 ,  G02B6/4249 ,  G02B6/43 ,  H01L2224/48091 ,  H01L2224/73257 ,  H01S5/005 ,  H01S5/02252 ,  H01S5/02272 ,  H01S5/4031 ,  H04B10/506 ,  H01L2924/00014

Abstract: An optical assembly for a wavelength-division-multiplexing (WDM) transmitter or receiver that lends itself to cost-effective production-line manufacturing. In one embodiment, the fiber optic assembly has a vernier-type arrayed waveguide grating (AWG) with five optical ports at one side and fourteen optical ports at another side. Ten of the fourteen ports are optically coupled to ten photo-detectors or lasers. A selected one of the five ports is optically coupled to an external optical fiber. The coupling optics and the mounting hardware for the AWG are designed to accommodate, with few relatively straightforward adjustments performed on the production line, any configuration of the AWG in which any consecutive ten of the fourteen ports are optically coupled to the ten photo-detectors or lasers.

Abstract translation: 用于波分复用（WDM）发射器或接收器的光学组件，其适用于具有成本效益的生产线制造。 在一个实施例中，光纤组件具有在一侧具有五个光学端口并在另一侧具有十四个光学端口的游标型阵列波导光栅（AWG）。 十四个端口中的十个光耦合到十个光电检测器或激光器。 五个端口中选择的一个光耦合到外部光纤。 用于AWG的耦合光学器件和安装硬件被设计成适应在生产线上执行的相对简单的调整，AWG的任何配置，其中十四个端口中的任何连续十个光学耦合到十个光电检测器或 激光器

公开(公告)号：US06996343B2

公开(公告)日：2006-02-07

申请号：US10394359

申请日：2003-03-21

Applicant: David T. Neilson

Inventor： David T. Neilson

IPC: H04J4/00 ,  H04J14/00

CPC classification number: G02B6/12014 ,  G02B6/12021 ,  G02B6/2931 ,  G02B6/29394 ,  G02B6/29395 ,  G02B6/29398

Abstract: A dispersion compensator having relatively uniform transmission characteristics over the bandwidth of a communication channel. The compensator is designed to process an optical signal corresponding to the communication channel by decomposing that signal into spectral components, routing different components along different optical paths that impart relative delays between the components, and recombining the delayed components spatially and directionally to generate a processed optical signal with reduced chromatic dispersion. In one embodiment, the compensator includes a diffraction grating optically coupled to a mirror array, in which different mirrors receive light corresponding to different communication channels. For each channel, a desired group delay value is produced by selecting the curvature of the corresponding mirror. A compensator employing independently addressable, variable-curvature mirrors enables generation of variable, channel-specific group delays. A representative compensator of the invention can be designed to generate variable group delays between about +400 and −400 ps/nm while maintaining transmission band uniformity of better than about ±0.4 dB over a channel bandwidth of about 60 GHz.

Abstract translation: 在通信信道的带宽上具有相对均匀的传输特性的色散补偿器。 补偿器被设计成通过将该信号分解为频谱分量来处理对应于通信信道的光信号，沿着不同的光路路由不同的分量路由，从而赋予组件之间的相对延迟，并将延迟的分量在空间上和方向上重组以产生经处理的光 信号具有降低的色散。 在一个实施例中，补偿器包括光学耦合到反射镜阵列的衍射光栅，其中不同的反射镜接收对应于不同通信信道的光。 对于每个通道，通过选择相应反射镜的曲率来产生期望的组延迟值。 采用独立可寻址的可变曲率反射镜的补偿器可以产生可变的，通道特定的组延迟。 本发明的代表性补偿器可以设计成在约+ 400和-400ps / nm之间产生可变组延迟，同时在约60GHz的信道带宽上保持传输频带均匀性优于约±0.4dB。

公开(公告)号：US09369783B2

公开(公告)日：2016-06-14

申请号：US13851371

申请日：2013-03-27

Applicant: David T. Neilson ,  Roland Ryf ,  Nicolas K. Fontaine

Inventor： David T. Neilson ,  Roland Ryf ,  Nicolas K. Fontaine

IPC: G02B6/35 ,  H04Q11/00

CPC classification number: H04Q11/0005 ,  G02B6/356 ,  H04Q2011/0016 ,  H04Q2011/0022 ,  H04Q2011/0026

Abstract: A wavelength-selective cross-connect (WSXC) device configured to route any set of carrier wavelengths from a corresponding input port to any selected output port. The WSXC device comprises a diffraction grating and a beam-steering device optically coupled to one another and to the input/output ports using astigmatic optics. The astigmatic optics includes one or more cylindrical lenses configured to image one beam-steering surface onto another beam-steering surface to enable a continuous spectral response. The astigmatic optics may further include (i) a cylindrical Fourier lens that enables the WSXC device to convert a change in the angular beam steering performed by the beam-steering device into a corresponding image-spot displacement at the output ports and/or (ii) one or more cylindrical lenses configured to image the active surface of the beam-steering device onto the diffraction grating. Various unfolded configurations of the various embodiments of the WSXC device are also disclosed.

Abstract translation: 波长选择性交叉连接（WSXC）设备被配置为将任何载波波长集合从相应的输入端口路由到任何选择的输出端口。 WSXC装置包括衍射光栅和光束转向装置，其使用散光光学器件相互光耦合到输入/输出端口。 散光光学器件包括一个或多个柱面透镜，其配置成将一个光束转向表面成像到另一个光束转向表面上以实现连续的光谱响应。 散光光学器件还可以包括（i）圆柱形傅立叶透镜，其使得WSXC器件能够将由光束转向装置执行的角度波束转向的变化转换成在输出端口处的相应图像点位移和/或（ii ）一个或多个柱面透镜，其配置成将所述光束转向装置的有源表面成像到所述衍射光栅上。 还公开了WSXC设备的各种实施例的各种展开配置。

公开(公告)号：US20120141140A1

公开(公告)日：2012-06-07

申请号：US12961677

申请日：2010-12-07

Applicant: David T. Neilson ,  Peter J. Winzer

Inventor： David T. Neilson ,  Peter J. Winzer

IPC: H04B10/02

CPC classification number: H04B10/61 ,  H04B10/2587

Abstract: An optical-power-distribution (OPD) subsystem that provides means for supplying optical local-oscillator signals and optical-carrier signals to various optical line cards, without the need for each optical line card to have a corresponding individual laser source. In one embodiment, a single laser coupled to the OPD subsystem provides optical local-oscillator signals and/or optical-carrier signals to multiple optical line cards. In another embodiment, multiple lasers coupled to the OPD subsystem provide multiple optical local-oscillator signals and/or optical-carrier signals to a single line card. An OPD subsystem may provide significant power savings in the operation of the corresponding optical transport system, a reduction in the required equipment-cooling capacity, and/or an increase in the device-packing density within optical line cards and/or inside equipment cabinets that house optical line cards.

Abstract translation: 光功率分配（OPD）子系统，其提供用于向各种光线路卡提供光本地振荡器信号和光载波信号的装置，而不需要每个光线路卡具有相应的单独的激光源。 在一个实施例中，耦合到OPD子系统的单个激光器向多个光线路卡提供光本地振荡器信号和/或光载波信号。 在另一个实施例中，耦合到OPD子系统的多个激光器向单个线卡提供多个光学本地振荡器信号和/或光载波信号。 OPD子系统可以在相应的光学传输系统的操作中提供显着的功率节省，所需的设备冷却能力的降低，和/或在光学线路卡和/或内部设备机柜内的设备密封密度的增加， 房屋光线路卡。