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公开(公告)号：US06618192B2
公开(公告)日：2003-09-09
申请号：US09847949
申请日：2001-05-02
申请人： Mohammed Islam , Carl Dewilde , Michael Freeman
发明人： Mohammed Islam , Carl Dewilde , Michael Freeman
IPC分类号： H01S300
CPC分类号： H04B10/2916 , H01S3/06758 , H01S3/094015 , H01S3/302 , H04B10/25253 , H04B2210/003
摘要： An amplifier apparatus includes an optical transmission line with a Raman amplification region that provides a pump to signal power conversion efficiency of at least 20%. The Raman amplification region is configured to amplify a signal with multiple wavelengths over at least a 30 nm range of wavelengths. A pump source is coupled to the optical transmission line. An input optical signal is amplified in the Raman amplification region and an output signal is generated that has at least 100 mW more power than the input optical signal.
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公开(公告)号：US20070188851A1
公开(公告)日：2007-08-16
申请号：US11691012
申请日：2007-03-26
申请人： Mohammed Islam , Carl DeWilde
发明人： Mohammed Islam , Carl DeWilde
IPC分类号： H01S3/00
CPC分类号： H04J14/0221 , H04B10/2916 , H04B10/2935
摘要： An optical communication system is operable to communicate a plurality of wavelength signals at a bit rate of at least 9.5 gigabits per second over a multiple span communication link spanning at least 400 kilometers without optical regenerators. The plurality of wavelength signals include a bandwidth of more than 32 nanometers separated into at least 160 optical channels. The system includes a plurality of optical transmitters implementing a forward error correction (FEC) coding technique. The FEC encoded wavelength signals comprise a bit error rate of 10−09 or better after FEC decoding. The system also includes at least five (5) optical add/drop multiplexers (OADMs), each coupled to one or more spans of the multiple span communication link. The system further includes a plurality of amplifiers each coupled to one or more spans of the communication link, at least a majority of the amplifiers comprise a distributed Raman amplification stage.
摘要翻译： 光通信系统可操作以通过跨越至少400公里的多跨度通信链路在不具有光学再生器的情况下以至少9.5千兆比特每秒的比特率来传送多个波长信号。 多个波长信号包括分离成至少160个光学通道的超过32纳米的带宽。 该系统包括实现前向纠错（FEC）编码技术的多个光发射机。 在FEC解码之后，FEC编码的波长信号包括10dB或更好的误码率。 该系统还包括至少五（5）个光分插复用器（OADM），每个耦合到多跨度通信链路的一个或多个跨度。 该系统还包括多个放大器，每个放大器耦合到通信链路的一个或多个跨度，至少大部分放大器包括分布式拉曼放大级。
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3.发明申请公开(公告)号：US20070082641A1
公开(公告)日：2007-04-12
申请号：US11610478
申请日：2006-12-13
申请人： Joseph Elder , Joseph Yestrebsky , Mohammed Islam
发明人： Joseph Elder , Joseph Yestrebsky , Mohammed Islam
CPC分类号： H04B1/1027 , H03J5/0272 , H03L7/197 , H04B1/26 , H04B1/28
摘要： A single chip receiver is disclosed herein. The chip only requires an external antenna for operation. A decoder is formed on chip for performing logical operations on demodulated digital data. A baseband filter is controlled by external control signals to have one of a plurality of discrete frequency response bandwidths depending on the type of signal to be received. To compensate for process variations in the implementation of the IC, bias currents setting the operating conditions for various amplifiers and other components in the system are adjusted based on frequency control signals in a PLL circuit in the local oscillator. Since the magnitude of the control signal reflects the process variations, the bias currents are adjusted based on the control signal to offset these variations in other portions of the receiver. To further improve the signal to noise ratio of the receiver, the IF filter is tuned within a range so as not to include any integer multiple or integer divisor of the timing reference frequency. Various techniques are described for enabling a complete receiver to be implemented on a single chip which receives an antenna input signal and outputs a digital data signal.
摘要翻译： 本文公开了一种单芯片接收机。 该芯片只需要外部天线进行操作。 解码器形成在芯片上，用于对解调的数字数据进行逻辑运算。 基带滤波器由外部控制信号控制，以根据要接收的信号的类型具有多个离散频率响应带宽中的一个。 为了补偿IC的实现中的工艺变化，基于本地振荡器中的PLL电路中的频率控制信号来调整设定系统中各种放大器和其它部件的工作条件的偏置电流。 由于控制信号的幅度反映了过程变化，所以基于控制信号调整偏置电流以抵消接收器其它部分中的这些变化。 为了进一步提高接收机的信噪比，将IF滤波器调谐到一定范围内，以便不包括定时参考频率的任何整数倍或整数除数。 描述了各种技术，用于使得能够在接收天线输入信号并输出数字数据信号的单个芯片上实现完整的接收机。
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公开(公告)号：US07158837B2
公开(公告)日：2007-01-02
申请号：US10619967
申请日：2003-07-15
IPC分类号： A61N1/05
CPC分类号： A61N1/056 , Y10S439/909
摘要： A permanent implantable lead having an elongated lead body with a proximal end and a distal end. A multifilar conductor having electrically active elements for providing electrical communication between connectors at the proximal end and electrical components between the proximal and distal ends of the lead body, wherein hulls facilitate resilient, low profile, efficient connection between the multifilar conductor and electrical components and seals secure the position of the electrical components. The hulls are located radially outward of the conductor and radially inward of the electrical components and the seals are located radially outward of the electrical components.
摘要翻译： 永久性可植入引线，其具有带有近端和远端的细长引线体。 具有用于在近端处的连接器和引线主体的近端和远端之间的电气部件之间的电气连通的电活动元件的多导体导体，其中，所述壳体有助于所述多针导体与电气部件和密封件之间的弹性，薄型，有效连接 确保电气部件的位置。 壳体位于导体的径向外侧并且电气部件的径向内侧，并且密封件位于电气部件的径向外侧。
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公开(公告)号：US09989514B2
公开(公告)日：2018-06-05
申请号：US14926870
申请日：2015-10-29
CPC分类号： G01N33/442 , G01N3/303 , G01N2203/0039
摘要： A system for detecting Poly-Bag and Poly Wrap on mail pieces, intended to be a sub-assembly on a mail unit open system that automatically opens wrapped bundles of either letter or flat mail. The system generally includes two orthogonally-opposed but otherwise identical Poly Bag Detectors both controlled by a programmable controller and deploying a swinging pendulum test, plus a Poly Wrap detector employing a rolling friction wheel test.
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公开(公告)号：US20160231226A1
公开(公告)日：2016-08-11
申请号：US14926870
申请日：2015-10-29
CPC分类号： G01N33/442 , G01N3/303 , G01N2203/0039
摘要： A system for detecting Poly-Bag and Poly Wrap on mail pieces, intended to be a sub-assembly on a mail unit open system that automatically opens wrapped bundles of either letter or flat mail. The system generally includes two orthogonally-opposed but otherwise identical Poly Bag Detectors both controlled by a programmable controller and deploying a swinging pendulum test, plus a Poly Wrap detector employing a rolling friction wheel test.
摘要翻译： 用于在邮件上检测Poly-Bag和Poly Wrap的系统，旨在成为邮件单元开放系统上的子组件，该系统可自动打开包装信件或平邮邮件。 该系统通常包括两个正交相对但相同的多袋检测器，两者均由可编程控制器控制并展开摆锤测试，以及采用滚动摩擦轮测试的Poly Wrap检测器。
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公开(公告)号：US20060245461A1
公开(公告)日：2006-11-02
申请号：US11335997
申请日：2006-01-20
申请人： Mohammed Islam
发明人： Mohammed Islam
CPC分类号： H01S3/302 , H01S3/094003 , H01S3/094046 , H01S3/171 , H01S2301/02
摘要： A mid-infrared light source comprises a pump laser, a fiber stage, and a waveguide stage. The pump laser generates light having an input wavelength between approximately one to two microns. The fiber stage comprises one or more intermediate fibers, and shifts at least a portion of the input wavelength to an intermediate wavelength longer than the input wavelength. The waveguide stage comprises one or more mid-infrared waveguides, and shifts at least a portion of the intermediate wavelength to yield mid-infrared light. The mid-infrared light has a spectrum, where at least a portion of the spectrum is approximately two microns or longer.
摘要翻译： 中红外光源包括泵浦激光器，光纤级和波导级。 泵激光器产生输入波长在大约一到二微米之间的光。 纤维阶段包括一个或多个中间纤维，并将输入波长的至少一部分移动到比输入波长更长的中间波长。 波导级包括一个或多个中红外波导，并移动中间波长的至少一部分以产生中红外光。 中红外光具有光谱，其中至少一部分光谱约为2微米或更长。
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8.发明申请System and Method for Dispersion Compensation in an Optical Communication System 有权光通信系统中色散补偿的系统和方法公开(公告)号：US20060188263A1
公开(公告)日：2006-08-24
申请号：US11277462
申请日：2006-03-24
申请人： Mohammed Islam , Amos Kuditcher
发明人： Mohammed Islam , Amos Kuditcher
IPC分类号： H04B10/12
CPC分类号： H04B10/25133 , H04B2210/252
摘要： An optical communication system includes a first end terminal comprising a first transponder operable to receive a first electrical signal and generate an optical signal based at least in part on the first electrical signal for communication to a multiple span communication link. The optical signal experiences at least partial dispersion compensation from an optical dispersion compensating element as it traverses the communication link. The system also includes a second end terminal comprising a second transponder operable to receive the optical signal and generate a second electrical signal based at least in part on the optical signal. At least one of the first and second end terminals further includes an electronic dispersion compensation module operable to provide electronic dispersion compensation to at least a portion of at least one of the first and second electrical signals. The electronic dispersion compensation module is operable to at least partially compensate for at least a portion of a residual dispersion for which the optical dispersion compensating element does not compensate.
摘要翻译： 光通信系统包括第一端终端，其包括第一应答器，其可操作以接收第一电信号，并且至少部分地基于第一电信号产生光信号，用于与多跨度通信链路进行通信。 当光学信号穿过通信链路时，光信号经历来自光学色散补偿元件的至少部分色散补偿。 该系统还包括第二端终端，其包括可操作以接收光信号并且至少部分地基于光信号产生第二电信号的第二转发器。 第一和第二端子终端中的至少一个还包括电子色散补偿模块，其可操作以向第一和第二电信号中的至少一个电信号的至少一部分提供电子色散补偿。 电子色散补偿模块可操作以至少部分地补偿光学色散补偿元件不补偿的残余色散的至少一部分。
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9.发明申请公开(公告)号：US20050060013A1
公开(公告)日：2005-03-17
申请号：US10911975
申请日：2004-08-05
IPC分类号： A61N1/05
摘要： An electrode assembly for an elongated implantable lead containing conducting filars. The electrode assembly has a first support hull surrounding a portion of the lead. The electrode assembly also has an electrode hull for at least partially surrounding the support hull and a portion of the lead adjacent to the support hull. The electrode hull secures to the support hull and to the lead at a location axially spaced from the support hull, such that the electrode hull, the support hull, and the lead define a gap. The gap allows the conducting filars to operatively connect to the first support hull.
摘要翻译： 一种用于细长可植入导线的电极组件，其包含导电丝。 电极组件具有围绕引线的一部分的第一支撑壳体。 电极组件还具有用于至少部分地围绕支撑壳体的电极壳体和邻近支撑壳体的引线的一部分。 电极壳体在与支撑壳体轴向间隔开的位置处固定到支撑壳体和引线，使得电极壳体，支撑壳体和引线限定间隙。 间隙允许导电丝可操作地连接到第一支撑船体。
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公开(公告)号：US06335820B1
公开(公告)日：2002-01-01
申请号：US09471747
申请日：1999-12-23
申请人： Mohammed Islam
发明人： Mohammed Islam
IPC分类号： H01S300
CPC分类号： H01S3/302 , H01S3/06758 , H01S3/094015
摘要： A multi-stage optical amplifier that has an optical fiber with a first length of amplifier fiber and a second length of amplifier fiber. The optical fiber is configured to be coupled to a signal source that produces at least a signal wavelength &lgr;s and a pump source that produces a pump wavelength &lgr;p. Pump wavelength &lgr;p is less than signal wavelength &lgr;s. Signal input, signal output and pump input ports are each coupled to the optical fiber. A first lossy member is coupled to the optical fiber and positioned between the first and second lengths of amplifier fiber. A pump shunt is coupled to the signal input port and the signal output port.
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