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。