Optical networks using multi-spatial mode media
    1.
    发明授权
    Optical networks using multi-spatial mode media 有权
    使用多空间模式媒体的光网络

    公开(公告)号:US09031419B2

    公开(公告)日:2015-05-12

    申请号:US13247230

    申请日:2011-09-28

    摘要: A fiber optic system includes a transmitter for transmitting high-speed streaming electrical data to a receiver for receiving the high-speed data. In order to transmit multiple channels in the system at high-speeds, an electrical data signal is converted into multiple optical sub-signals. Each of the multiple optical sub-signals are transmitted at the common wavelength on multi-spatial mode media. The receiver receives the multiple optical sub-signals as a multi-spatial mode optical signal and separates the multi-spatial mode optical signal into branch signals having a common wavelength. The receiver mixes each of the branch signals with optical carrier waves having the common wavelength and converts the branch signals into electrical signals. Digital signal processing is used to recover the data sub-signals which are used to recover the original data signal.

    摘要翻译: 光纤系统包括用于将高速流式电气数据传送到用于接收高速数据的接收器的发射器。 为了在系统中以高速传输多个信道,电数据信号被转换成多个光子信号。 多个光子信号中的每一个在多空间模式媒体上以公共波长传输。 接收机接收多个光子信号作为多空间模式光信号,并将多空间模式光信号分离为具有共同波长的分支信号。 接收器将每个分支信号与具有公共波长的光载波混合,并将分支信号转换成电信号。 数字信号处理用于恢复用于恢复原始数据信号的数据子信号。

    Optical Networks Using Multi-spatial Mode Media
    2.
    发明申请
    Optical Networks Using Multi-spatial Mode Media 有权
    使用多空间模式媒体的光网络

    公开(公告)号:US20130077967A1

    公开(公告)日:2013-03-28

    申请号:US13247230

    申请日:2011-09-28

    IPC分类号: H04J14/04

    摘要: A fiber optic system includes a transmitter for transmitting high-speed streaming electrical data to a receiver for receiving the high-speed data. In order to transmit multiple channels in the system at high-speeds, an electrical data signal is converted into multiple optical sub-signals. Each of the multiple optical sub-signals are transmitted at the common wavelength on multi-spatial mode media. The receiver receives the multiple optical sub-signals as a multi-spatial mode optical signal and separates the multi-spatial mode optical signal into branch signals having a common wavelength. The receiver mixes each of the branch signals with optical carrier waves having the common wavelength and converts the branch signals into electrical signals. Digital signal processing is used to recover the data sub-signals which are used to recover the original data signal.

    摘要翻译: 光纤系统包括用于将高速流式电气数据传送到用于接收高速数据的接收器的发射器。 为了在系统中以高速传输多个信道,电数据信号被转换成多个光子信号。 多个光子信号中的每一个在多空间模式媒体上以公共波长传输。 接收机接收多个光子信号作为多空间模式光信号,并将多空间模式光信号分离为具有共同波长的分支信号。 接收器将每个分支信号与具有公共波长的光载波混合,并将分支信号转换成电信号。 数字信号处理用于恢复用于恢复原始数据信号的数据子信号。

    Multicore Optical Fiber with Reduced Inter-Core Crosstalk
    3.
    发明申请
    Multicore Optical Fiber with Reduced Inter-Core Crosstalk 有权
    具有减少核心间串扰的多芯光纤

    公开(公告)号:US20130136404A1

    公开(公告)日:2013-05-30

    申请号:US13308167

    申请日:2011-11-30

    申请人: Mark D. Feuer

    发明人: Mark D. Feuer

    IPC分类号: G02B6/02 G02B6/028

    摘要: Various apparatus and methods for reducing inter-core crosstalk in a multicore optical fiber are disclosed. A multicore optical fiber may include a plurality of cores capable of transmitting optical signals, and a cladding surrounding the cores, the cladding having a heterogeneous refractive index such that the optical signals propagate at different velocities in different ones of the cores. A multicore optical fiber may include a first length including cores having heterogeneous modal velocities and a second length, adjacent to the first length, including cores having heterogeneous modal velocities, and the cores in the first length are aligned with cores in the second length having a different modal velocity. Inter-core cross talk in a multicore optical fiber may also be reduced by transmitting optical signals through cores of a multicore optical fiber and pumping light into the cores to create unequal modal velocities in the cores.

    摘要翻译: 公开了用于减少多芯光纤中的核心间串扰的各种装置和方法。 多芯光纤可以包括能够传输光信号的多个核心和围绕芯的包层,所述包层具有不均匀的折射率,使得光信号以不同的芯中的不同速度传播。 多芯光纤可以包括第一长度,其包括具有异质模态速度的芯和与第一长度相邻的第二长度,包括具有异质模态速度的芯,并且第一长度中的芯与第二长度中的芯对准, 不同的模态速度。 在多芯光纤中的核心间串扰也可以通过将光信号通过多芯光纤的核发射并将光泵送到芯中以在芯中产生不等的模态速度来降低。

    Optical devices with multiple wafers containing planar optical waveguides
    4.
    发明授权
    Optical devices with multiple wafers containing planar optical waveguides 失效
    具有多个晶片的光学器件包含平面光波导

    公开(公告)号:US07792407B2

    公开(公告)日:2010-09-07

    申请号:US12231809

    申请日:2008-09-05

    IPC分类号: G02B6/10

    摘要: A method for fabricating an optical device wherein the device comprises a first substrate wafer with at least one buried optical waveguide on an approximately flat planar surface of the substrate and a second substrate wafer with at least a second buried optical waveguide. The waveguides so formed may be straight or curved along the surface of the wafer or curved by burying the waveguide at varying depth along its length. The second wafer is turned (flipped) and bonded to the first wafer in such a manner that the waveguides, for example, may form an optical coupler or may cross over one another and be in proximate relationship along a region of each. As a result, three-dimensional optical devices are formed avoiding the convention techniques of layering on a single substrate wafer.

    摘要翻译: 一种用于制造光学器件的方法,其中所述器件包括具有在所述衬底的大致平坦平面上的至少一个掩埋光波导的第一衬底晶片和具有至少第二掩埋光波导的第二衬底晶片。 如此形成的波导可以沿着晶片的表面是直的或弯曲的,或者通过沿其长度以不同的深度掩埋波导来弯曲。 第二晶片以这样的方式转动(翻转)并结合到第一晶片,使得波导例如可以形成光耦合器,或者可以彼此交叉并且沿着每个的区域彼此相交。 结果,形成三维光学器件,避免了在单个衬底晶片上分层的常规技术。

    Method and apparatus for managing lightpaths in optically-routed networks
    5.
    发明授权
    Method and apparatus for managing lightpaths in optically-routed networks 有权
    用于管理光路由网络中的光路的方法和装置

    公开(公告)号:US07580632B1

    公开(公告)日:2009-08-25

    申请号:US11101778

    申请日:2005-04-08

    IPC分类号: H04B10/08

    摘要: A system and method that utilizes digital coding techniques to combine a high-rate data stream with a lower rate side data stream to produce a combined data stream in such a way that the side data can be extracted by an inexpensive, low-bandwidth receiver. The method generally comprises the steps of: combining at least one payload data stream with at least one side data stream into a composite electrical data stream; applying the composite data stream to an optical transmitter to produce an optical signal; detecting the optical signal with an optical receiver having a maximum frequency of operation less than one-half of the rate of the composite data stream; and recovering the side data stream from the electrical output of the optical receiver.

    摘要翻译: 一种利用数字编码技术将高速率数据流与较低速率侧数据流组合以产生组合数据流的方式,其方式可以由便宜的低带宽接收机提取侧数据。 该方法通常包括以下步骤:将至少一个有效载荷数据流与至少一个侧面数据流组合成复合电气数据流; 将复合数据流应用于光发射机以产生光信号; 用具有最小操作频率的光接收器检测光信号小于合成数据流速率的一半; 以及从光接收器的电输出恢复侧数据流。

    Wavelength-cyclic communication network and wavelength-cyclic modules
    6.
    发明授权
    Wavelength-cyclic communication network and wavelength-cyclic modules 失效
    波长循环通信网络和波长循环模块

    公开(公告)号:US06614568B1

    公开(公告)日:2003-09-02

    申请号:US09353205

    申请日:1999-07-14

    申请人: Mark D. Feuer

    发明人: Mark D. Feuer

    IPC分类号: H04J1402

    摘要: A method and apparatus for providing wavelength-cyclic communication services. M wavelength channels are provided to a plurality of add/drop modules in the network, and each of the add/drop modules selects a distinct comb of wavelength channels for provision to a subscriber. The add/drop modules select a comb of wavelength channels such that each selected channel is separated by N wavelength channels from adjacent selected channels. Thus, each add/drop module can select M/N channels for a corresponding subscriber. A passive Fabry-Perot interferometer having controlled dispersion can function as a wavelength selector at each add/drop module. The Fabry-Perot interferometer can have two different materials having different dispersion properties provided in an interference cavity, thereby providing desired tunability characteristics for the interferometer.

    摘要翻译: 一种用于提供波长循环通信服务的方法和装置。 将M个波长信道提供给网络中的多个添加/分出模块,并且每个添加/分出模块选择用于提供给用户的不同的波长信道梳。 加/减模块选择波长通道的梳子,使得每个选定的通道由相邻选定通道的N个波长通道分开。 因此,每个加/减模块可以为相应的用户选择M / N信道。 具有受控色散的无源法布里 - 珀罗干涉仪可在每个加/减模块中作为波长选择器。 法布里 - 珀罗干涉仪可以具有在干涉腔中提供的具有不同色散特性的两种不同材料,从而为干涉仪提供所需的可调谐特性。

    Tunable bidirectional multiplexer/demultiplexer for optical transmission system
    7.
    发明授权
    Tunable bidirectional multiplexer/demultiplexer for optical transmission system 有权
    用于光传输系统的可调双向多路复用器/解复用器

    公开(公告)号:US08131150B2

    公开(公告)日:2012-03-06

    申请号:US11448339

    申请日:2006-06-07

    IPC分类号: H04J14/02 H04J14/00

    摘要: A tunable bidirectional multiplexer/demultiplexer (MUX/DEMUX) is disclosed for adding and dropping wavelength channels between an optical transmission system and at least one optical transceiver. The MUX/DEMUX includes at least one add port for adding wavelength channels, at least one drop port for dropping wavelength channels, and at least one first optical circulator coupled to the at least one drop port and the at least one add port. The MUX/DEMUX further includes at least one 1×N wavelength-selective switch coupled to the at least one first optical circulator, and at least one second optical circulator coupled to at least one transceiver port on a second side of the at least one wavelength-selective switch, where the optical circulators and switching components are disposed within a common housing. The at least one wavelength-selective switch and ports are configured such that an optical signal communicated from the at least one transceiver port to the at least one add port follows a first optical path, and an optical signal communicated from the at least one drop port to the at least one transceiver port follows a second optical path, where a portion of the first and second optical paths are the same.

    摘要翻译: 公开了一种可调谐双向多路复用器/解复用器(MUX / DEMUX),用于在光传输系统和至少一个光收发器之间添加和删除波长信道。 MUX / DEMUX包括至少一个用于添加波长信道的添加端口,用于丢弃波长信道的至少一个丢弃端口,以及耦合到该至少一个丢弃端口和至少一个添加端口的至少一个第一光学循环器。 MUX / DEMUX还包括耦合到所述至少一个第一光环行器的至少一个1×N波长选择开关,以及耦合到所述至少一个波长的第二侧上的至少一个收发器端口的至少一个第二光循环器 选择开关,其中光学循环器和开关部件设置在公共壳体内。 所述至少一个波长选择性开关和端口被配置为使得从所述至少一个收发器端口传送到所述至少一个附加端口的光信号遵循第一光路,并且从所述至少一个分接端口 至少一个收发器端口遵循第二光路,其中第一和第二光路的一部分是相同的。

    Digital Light Path Labeling System with Dual Polarization Quaternary Phase-shift Keying Modulation
    8.
    发明申请
    Digital Light Path Labeling System with Dual Polarization Quaternary Phase-shift Keying Modulation 有权
    具有双极化第四系相移键控调制的数字光路标签系统

    公开(公告)号:US20120014695A1

    公开(公告)日:2012-01-19

    申请号:US12836339

    申请日:2010-07-14

    IPC分类号: H04J14/06 H04L27/20 H04B1/707

    摘要: A method and system for encoding and determining labels in a Dual Polarization (DP) Quaternary Phase Shift Keying (QPSK) signal is provided. A label frame, signature sequence, and data payload are combined using a complementary constant-weight code encoding (CCWC) encoder, the output of which is deinterleaved and differentially precoded to generate a polarized tributary of a DP-QPSK signal. This encoding can be duplicated for a second tributary of the DP-QPSK signal. The label can be determined using one or more polarizers and corresponding low-speed photodetectors, each applied to a copy of the DP-QPSK signal. The strongest output of the photodetectors is then used to determine the label. Alternatively, the DP-QPSK signal can be viewed as having XI, XQ, PH, and PV tributaries. These tributaries can then be translated into XI, XQ, YI, and YQ tributaries are encoded into a standard DP-QPSK signal.

    摘要翻译: 提供了一种用于在双极化(DP)四相相移键控(QPSK)信号中编码和确定标签的方法和系统。 使用互补常数权重码编码(CCWC)编码器来组合标签帧,签名序列和数据有效载荷,其输出被去交织和差分预编码以产生DP-QPSK信号的极化支路。 可以对DP-QPSK信号的第二支路复制该编码。 可以使用一个或多个偏振器和相应的低速光电探测器来确定标签,每个偏振器应用于DP-QPSK信号的副本。 然后使用光检测器的最强输出来确定标签。 或者,DP-QPSK信号可以被看作具有XI,XQ,PH和PV支路。 然后,这些支路可以被转换成XI,XQ,YI和YQ支路被编码成标准的DP-QPSK信号。

    Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguides
    9.
    发明授权
    Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguides 失效
    通过组装包含平面光波导的多个晶片来制造光学器件的方法

    公开(公告)号:US07164826B2

    公开(公告)日:2007-01-16

    申请号:US11328529

    申请日:2006-01-10

    IPC分类号: G02B6/26

    摘要: A method for fabricating optical devices comprises the steps of preparing a first substrate wafer with at least one buried optical waveguide on an approximately flat planar surface of the substrate and a second substrate wafer with at least a second buried optical waveguide. The waveguides so formed may be straight or be curved along the surface of the wafer or curved by burying the waveguide at varying depth along its length. The second wafer is turned (flipped) and bonded to the first wafer in such a manner that the waveguides, for example, may form an optical coupler or may crossover one another and be in proximate relationship along a region of each. As a result, three dimensional optical devices are formed avoiding conventional techniques of layering on a single substrate wafer. Optical crossover angles may be reduced, for example, to thirty degrees from ninety degrees saving substrate real estate. Recessed areas may be provided in one or the other substrate surface reducing crosstalk in a completed three dimensional crossover device. Three dimensional optical couplers may comprise waveguides of identical or dissimilar characteristics. Moreover, three dimensional optical switches may be formed using the proposed flip and bond assembly process.

    摘要翻译: 一种制造光学器件的方法包括以下步骤:在衬底的近似平坦的平坦表面上制备具有至少一个掩埋光波导的第一衬底晶片,以及具有至少第二掩埋光波导的第二衬底晶片。 如此形成的波导可以是直的或沿着晶片的表面弯曲,或者通过沿其长度以不同的深度掩埋波导来弯曲。 第二晶片以这样的方式转动(翻转)并结合到第一晶片,使得波导例如可以形成光耦合器,或者可以彼此交叉并且沿着每个的区域彼此相邻。 结果,形成了三维光学器件,避免了在单个衬底晶片上分层的常规技术。 光学交叉角度可以降低,例如,从九十度节省衬底空间可以降低三十度。 可以在一个或另一个衬底表面中提供嵌入区域,减少完整的三维交叉装置中的串扰。 三维光耦合器可以包括相同或不同特性的波导。 此外,可以使用所提出的翻转和键合组装过程来形成三维光学开关。

    Method and apparatus for a network comprising a fourier plane photonics
package
    10.
    发明授权
    Method and apparatus for a network comprising a fourier plane photonics package 失效
    一种用于网络的方法和装置,包括傅立叶平面光子学封装

    公开(公告)号:US5991058A

    公开(公告)日:1999-11-23

    申请号:US178113

    申请日:1998-10-23

    摘要: A photonics package, and methods for its use are disclosed. In one configuration, a collimating lens is disposed between a photonics device and a ferrule containing two optical fibers. Preferably, one of the fibers delivers an optical signal to the photonics device, and the other fiber receives an optical signal from the photonics device. The fibers within the dual-fiber ferrule are located off of the optical axis of the lens so that light emanating from the signal-delivering fiber will be imaged onto the photonics device at a slight angle from the normal and may be reflected at the same angle for coupling into the signal-receiving fiber Preferably, the photonics device is situated at the Fourier plane to facilitate coupling reflected light into the signal-receiving fiber. The function of the photonics package varies with the included photonics device. For example, the package can function as a data receiver, a data transmitter and a data transceiver by incorporating, respectively, a photodetector, an optical modulator, and a transceiver. The photonics package, which can be integrated in optical communications networks, allows for incoming and outgoing signals to be handled on separate fibers, obviating the need for a splitter as required in one fiber systems. A decrease in signal loss throughout the optical communications system can thus be realized.

    摘要翻译: 公开了一种光子学封装及其使用方法。 在一种配置中,准直透镜设置在光子器件和包含两根光纤的套圈之间。 优选地,光纤之一将光信号传送到光子器件,而另一光纤从光子器件接收光信号。 双光纤套圈内的光纤位于透镜的光轴之外,使得从信号传送光纤发出的光将以与法线成微小的角度成像到光子器件上,并且可以以相同的角度反射 用于耦合到信号接收光纤中。优选地,光子器件位于傅立叶平面以便于将反射光耦合到信号接收光纤中。 光子封装的功能随着光子器件的不同而不同。 例如,封装可以分别并入光电检测器,光调制器和收发器中,用作数据接收器,数据发射器和数据收发器。 可以集成在光通信网络中的光子封装允许在单独的光纤上处理输入和输出信号,从而避免了在一个光纤系统中需要的分离器。 因此可以实现整个光通信系统中的信号损失的减少。