公开(公告)号：US06313771B1

公开(公告)日：2001-11-06

申请号：US09442086

申请日：1999-11-17

申请人： Michael J. Munroe ,  Alan E. Johnson ,  Anders Grunnet-Jepsen ,  Eric S. Maniloff ,  Thomas W. Mossberg ,  John N. Sweetser

发明人： Michael J. Munroe ,  Alan E. Johnson ,  Anders Grunnet-Jepsen ,  Eric S. Maniloff ,  Thomas W. Mossberg ,  John N. Sweetser

IPC分类号： H03M134

CPC分类号： G02B6/29395 ,  G02B6/2932 ,  H04J13/107 ,  H04J14/005

摘要： Encoders and decoders for applying composite codes to optical data signals include encoders and decoders for applying both subcodes and supercodes. The subcodes have a duration selected as less than or equal to an interchip duration or a chip duration of the supercodes. The encoders and decoders (“coders”) include fiber Bragg gratings configured to encode or decode a subcode, a supercode, or a composite code. By coding with a subcode coder and a supercode coder, a coder is reconfigurable by selecting different subcodes or supercodes. Communication systems and methods using composite codes are also described.

摘要翻译： 用于将复合码应用于光数据信号的编码器和解码器包括用于应用两个子码和超级码的编码器和解码器。 子代码具有选择为小于或等于芯片间持续时间或超级代码的芯片持续时间的持续时间。 编码器和解码器（“编码器”）包括配置成编码或解码子码，超码或复合码的光纤布拉格光栅。 通过使用子代码编码器和超级代码编码器进行编码，可以通过选择不同的子代码或超级代码来重构编码器。 还描述了使用复合码的通信系统和方法。

公开(公告)号：US07203151B2

公开(公告)日：2007-04-10

申请号：US10617201

申请日：2003-07-09

申请人： Alan E. Johnson ,  Eric S. Maniloff ,  Thomas W. Mossberg

发明人： Alan E. Johnson ,  Eric S. Maniloff ,  Thomas W. Mossberg

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/00453 ,  G11B7/0052 ,  G11B7/127 ,  G11B7/128

摘要： An optical data storage system directs a reference beam and a data beam to a storage material having an inhomogeneous linewidth. The data beam is modulated to contain data to be stored in the storage material. The reference beam and the data beam illuminate storage cells of the storage material, causing data to be stored. The reference beam and the data beam spatially scan the cells and are frequency swept during their respective spatial scans. Data is retrieved from the cells by illuminating the storage material with the reference beam to produce a reconstructed data beam. In an embodiment, the reference beam and the data beam overlap and illuminate the storage cells simultaneously. The reconstructed data beam is detected as a heterodyne signal produced by mixing the reconstructed data beam and the reference beam in a detector.

摘要翻译： 光学数据存储系统将参考光束和数据光束引导到具有不均匀线宽的存储材料。 数据波束被调制以包含要存储在存储材料中的数据。 参考光束和数据光束照射存储材料的存储单元，导致数据被存储。 参考光束和数据光束在空间扫描细胞并在其各自的空间扫描期间频率扫描。 通过用参考光束照射存储材料来从单元检索数据，以产生重建的数据束。 在一个实施例中，参考光束和数据光束同时重叠并照亮存储单元。 被重构的数据波束被检测为通过将重建的数据波束和参考波束混合在检测器中而产生的外差信号。

公开(公告)号：US06842561B2

公开(公告)日：2005-01-11

申请号：US10113827

申请日：2002-03-29

申请人： Gary Mak ,  Shiguang Guo ,  Eric S. Maniloff

发明人： Gary Mak ,  Shiguang Guo ,  Eric S. Maniloff

IPC分类号： G02B6/28 ,  H04B10/08

CPC分类号： H04B10/07955 ,  G02B6/2821 ,  H04B10/077

摘要： A method for determining optical power in a WDM optical signal that includes extracting a representative portion of the optical signal with wavelengths within some band δ wherein δ is a subset of Δ, the set of all channel wavelengths present in the optical signal and measuring the intensity of the extracted optical signal to determine the optical power per channel for any of the channels whose wavelengths are within the band δ.

摘要翻译： 一种用于确定WDM光信号中的光功率的方法，其包括以波段为特征的特征波段中提取光信号的代表性部分，其中δ是Delta的子集，所述光信号中存在的所有信道波长的集合和测量光强度 提取的光信号以确定波长在波段三角洲内的任何通道的每通道的光功率。

公开(公告)号：US06778102B1

公开(公告)日：2004-08-17

申请号：US09591889

申请日：2000-06-09

申请人： Anders Grunnet-Jepsen ,  Alan E. Johnson ,  Eric S. Maniloff ,  Thomas W. Mossberg ,  Michael J. Munroe ,  John N. Sweetser

发明人： Anders Grunnet-Jepsen ,  Alan E. Johnson ,  Eric S. Maniloff ,  Thomas W. Mossberg ,  Michael J. Munroe ,  John N. Sweetser

IPC分类号： H03M700

CPC分类号： H04J14/005

摘要： Code-multiplexed communication systems, apparatus, and methods include coders that encode and decode data streams with synchronous, substantially orthogonal codes. Code-multiplexed communications systems encode data signals with such codes to control levels of decoding artifacts such as cross-talk at times or time intervals in which data is recovered. Some systems are based on synchronous, orthogonal codes that are obtained from complex orthogonal vectors. In an example, a three-level temporal-phase code that includes nine code chips and encodes and decodes data signals is a seven-channel communication system.

摘要翻译： 码多路复用的通信系统，装置和方法包括用同步的基本正交码对数据流进行编码和解码的编码器。 码复用通信系统使用这样的代码对数据信号进行编码，以控制数据恢复的时间或时间间隔等解码伪影的等级。 一些系统基于从复杂正交向量获得的同步正交码。 在一个示例中，包括九个码片并且对数据信号进行编码和解码的三级时间相位码是七声道通信系统。

公开(公告)号：US06594421B1

公开(公告)日：2003-07-15

申请号：US09491518

申请日：2000-01-26

申请人： Alan E. Johnson ,  Eric S. Maniloff ,  Michael J. Munroe ,  Anders Grunnet-Jepsen ,  John N. Sweetser

发明人： Alan E. Johnson ,  Eric S. Maniloff ,  Michael J. Munroe ,  Anders Grunnet-Jepsen ,  John N. Sweetser

IPC分类号： G02B634

CPC分类号： G05B19/042 ,  G02F1/011 ,  G02F1/0131 ,  G02F1/0134 ,  G02F1/0147 ,  G02F1/0311 ,  G02F1/035 ,  G02F2201/307 ,  G02F2203/055

摘要： Programmable waveguide coders are disclosed that include one or more corrugation segments and one or more spacer segments formed on or in a waveguide defined by a core in an electro-optic substrate. Each of the corrugation segments and the spacer segments are independently controllable with voltages applied to each segment's electrodes. The spacer segments permit application of a phase modulation to an input while the corrugation segments act as tunable gratings, wherein a center grating wavelength is tunable by applying a voltage to an electrode associated with the corrugation segment. In some embodiments, coders include only corrugation segments or only spacer segments. Such coders can be strain tuned or thermally tuned. The coders can be programmatically tuned to code or decode a time-wavelength code or other code.

摘要翻译： 公开了可编程波导编码器，其包括一个或多个波纹段和形成在由电光基板中的芯限定的波导上或中的一个或多个间隔段。 波纹段和间隔段中的每一个可独立地通过施加到每个段的电极的电压来控制。 间隔片允许对输入端施加相位调制，而波纹部分作为可调光栅，其中通过向与波纹部分相关联的电极施加电压可调谐中心光栅波长。 在一些实施例中，编码器仅包括波纹段或仅包括间隔段。 这样的编码器可以进行应变调谐或热调谐。 编码器可以通过编程方式进行编码或解码时间波长代码或其他代码。

公开(公告)号：US07065298B1

公开(公告)日：2006-06-20

申请号：US09454164

申请日：1999-11-17

申请人： Michael J. Munroe ,  Alan E. Johnson ,  Anders Grunnet-Jepsen ,  Eric S. Maniloff ,  Thomas W. Mossberg ,  John N. Sweetser

发明人： Michael J. Munroe ,  Alan E. Johnson ,  Anders Grunnet-Jepsen ,  Eric S. Maniloff ,  Thomas W. Mossberg ,  John N. Sweetser

IPC分类号： H04J4/00

CPC分类号： H04J14/0282 ,  H04J14/005 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252

摘要： Optical communication systems include a central station that encodes data transmitted to multiplexing (mux) stations or user stations. The central station also decodes data received from the mux stations or user stations. Encoding and decoding are performed using codes, such as composite codes, that designate sources and destinations for data. The mux stations, user stations, and the central station have address encoders and decoders that use, for example, fiber Bragg gratings to encode or decode optical signals according to a code such as a composite code derived by combining codes from one or more sets of codes. A passive optical network comprises one or more levels of mux stations that use such address decoders and encoders to receive, decode, and encode data for transmission toward a central station or a user station.

摘要翻译： 光通信系统包括对发送到复用（多路复用）站或用户站的数据进行编码的中央站。 中央站还对从复用站或用户站接收的数据进行解码。 使用指定数据的源和目的地的代码（诸如复合代码）来执行编码和解码。 多路复用站，用户站和中央站具有地址编码器和解码器，其使用例如光纤布拉格光栅根据诸如通过组合来自一个或多个集合的代码的代码得到的代码来编码或解码光信号 代码。 无源光网络包括使用这样的地址解码器和编码器来接收，解码和编码用于向中心站或用户站传输的数据的一个或多个复用站级。

公开(公告)号：US06961296B2

公开(公告)日：2005-11-01

申请号：US10617075

申请日：2003-07-09

申请人： Alan E. Johnson ,  Eric S. Maniloff ,  Thomas W. Mossberg

发明人： Alan E. Johnson ,  Eric S. Maniloff ,  Thomas W. Mossberg

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/125 ,  G11C8/02 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B7/00453 ,  G11B7/0052 ,  G11B7/127 ,  G11B7/128

摘要： An optical data storage system directs a reference beam and a data beam to a storage material having an inhomogeneous linewidth. The data beam is modulated to contain data to be stored in the storage material. The reference beam and the data beam illuminate storage cells of the storage material, causing data to be stored. The reference beam and the data beam spatially scan the cells and are frequency swept during their respective spatial scans. Data is retrieved from the cells by illuminating the storage material with the reference beam to produce a reconstructed data beam. In an embodiment, the reference beam and the data beam overlap and illuminate the storage cells simultaneously. The reconstructed data beam is detected as a heterodyne signal produced by mixing the reconstructed data beam and the reference beam in a detector.

摘要翻译： 光学数据存储系统将参考光束和数据光束引导到具有不均匀线宽的存储材料。 数据波束被调制以包含要存储在存储材料中的数据。 参考光束和数据光束照射存储材料的存储单元，导致数据被存储。 参考光束和数据光束在空间扫描细胞并在其各自的空间扫描期间频率扫描。 通过用参考光束照射存储材料来从单元检索数据，以产生重建的数据束。 在一个实施例中，参考光束和数据光束同时重叠并照亮存储单元。 被重构的数据波束被检测为通过将重建的数据波束和参考波束混合在检测器中而产生的外差信号。

公开(公告)号：US06865344B1

公开(公告)日：2005-03-08

申请号：US09712822

申请日：2000-11-13

申请人： Alan E. Johnson ,  Michael J. Munroe ,  Anders Grunnet-Jepsen ,  Eric S. Maniloff ,  John N. Sweetser

发明人： Alan E. Johnson ,  Michael J. Munroe ,  Anders Grunnet-Jepsen ,  Eric S. Maniloff ,  John N. Sweetser

IPC分类号： H04J14/00 ,  H04J4/00

CPC分类号： H04J14/005

摘要： Communication systems and methods are disclosed that route, detect, and decode encoded optical signals at network nodes based on channel codes assigned to the network nodes. In an example communication system, a network hub includes a channel selector that encodes an optical signal with a channel code assigned to one or more network nodes. The channel selector is configured to encode based on a channel selection signal provided to the channel selector and can include one or more fiber Bragg coders. Code-switched communication systems can include one or more nodes configured in ring, tree, or bus architectures.

摘要翻译： 公开了基于分配给网络节点的信道码在网络节点路由，检测和解码经编码的光信号的通信系统和方法。 在示例性通信系统中，网络集线器包括信道选择器，其对具有分配给一个或多个网络节点的信道码的光信号进行编码。 信道选择器被配置为基于提供给信道选择器的信道选择信号进行编码，并且可以包括一个或多个光纤布拉格编码器。 代码交换通信系统可以包括以环，树或总线架构配置的一个或多个节点。

公开(公告)号：US06761999B2

公开(公告)日：2004-07-13

申请号：US09973170

申请日：2001-10-04

申请人： Eric S. Maniloff ,  Duncan W. McBranch ,  Alan J. Heeger ,  Dan V. Vacar

发明人： Eric S. Maniloff ,  Duncan W. McBranch ,  Alan J. Heeger ,  Dan V. Vacar

IPC分类号： G03H102

CPC分类号： B82Y30/00 ,  G02F1/3536 ,  G02F2202/13 ,  G03H1/02 ,  G03H2001/026 ,  G03H2001/0264 ,  G03H2222/33 ,  G03H2260/36

摘要： Charge-transfer materials are demonstrated to be useful for generating femtosecond holographic gratings. Using semiconducting polymers sensitized with varying concentrations of C60, absorption holographic gratings with diffraction efficiencies of 1.6% were recorded with individual ultrafast laser pulses; the diffraction efficiency and time decay of the gratings were measured using nondegenerate four-wave mixing. High quantum efficiency for electron transfer reduces the effects of early recombination which otherwise limits the density of excitations in pure polymers, and the metastability of the charge transfer enables tuning of the decay dynamics by controlling the concentration of acceptors in the mixture.

摘要翻译： 电荷转移材料被证明可用于生成飞秒全息光栅。 使用用不同浓度C60敏化的半导体聚合物，用单个超快激光脉冲记录衍射效率为1.6％的吸收全息光栅; 使用非衰变四波混频测量光栅的衍射效率和时间衰减。 电子传递的高量子效率降低了早期重组的影响，否则限制了纯聚合物中激发的密度，电荷转移的亚稳态可通过控制混合物中受体的浓度来调节衰变动力学。

公开(公告)号：US06646790B2

公开(公告)日：2003-11-11

申请号：US10058879

申请日：2002-01-28

申请人： Simon P. Parry ,  Eric S. Maniloff ,  Gary Mak ,  Andy Rowland ,  Franz H. Mok

发明人： Simon P. Parry ,  Eric S. Maniloff ,  Gary Mak ,  Andy Rowland ,  Franz H. Mok

IPC分类号： H01S300

CPC分类号： H01S3/13 ,  H01S3/1305 ,  H01S3/131 ,  H01S5/0683 ,  H01S5/50

摘要： In a method and apparatus for tracking dynamic characteristics of an optical amplifier, optical signal probes are used to determine the gain and the corner frequency of the optical amplifier. A first optical probe having a predetermined modulation frequency above an expected corner frequency of the amplifier is used to estimate the gain of the optical amplifier. A second optical probe signal having a second predetermined modulation frequency at or below the expected corner frequency of the amplifier is used to estimate the corner frequency. These parameters can be used to optimize gain control of an optical amplifier.