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    Method and system for communicating with remote units in a communication system
    4.
    发明授权
    Method and system for communicating with remote units in a communication system 有权
    用于与通信系统中的远程单元进行通信的方法和系统

    公开(公告)号：US06442372B1

    公开(公告)日：2002-08-27

    申请号：US09464181

    申请日：1999-12-16

    申请人： Mohammad Laham ,  Charles Sanford

    发明人： Mohammad Laham ,  Charles Sanford

    IPC分类号： H04B1700

    CPC分类号： H04W24/00

    摘要： A method and system for a communication system with a communication center, a communication site, a user station and a remote unit allowing the communication center to communicate with the user station over a user channel and communicate with the remote unit over a system channel such that the communication center can monitor, operate or control the remote unit on as needed basis.

    摘要翻译： 一种用于具有通信中心，通信站点，用户站和远程单元的通信系统的方法和系统，其允许通信中心通过用户信道与用户站进行通信，并通过系统信道与远程单元通信，使得 通信中心可以根据需要监控，操作或控制远程单元。

    SOA-MZI Device Fault Isolation
    5.
    发明申请
    SOA-MZI Device Fault Isolation 失效
    SOA-MZI设备故障隔离

    公开(公告)号：US20090041454A1

    公开(公告)日：2009-02-12

    申请号：US12254380

    申请日：2008-10-20

    申请人： Mohammad Laham ,  Boris Stefanov

    发明人： Mohammad Laham ,  Boris Stefanov

    IPC分类号： H04B10/08

    CPC分类号： H01S5/4025 ,  G02B6/2813 ,  H01S5/5045

    摘要： A photonic integrated circuit having a plurality of circuit components, is disclosed, which may include an MMI for splitting signal power passing therethrough among first and second optical pathways coupled to first and second outputs, respectively, of the MMI, thereby directing first and second percentages of the signal power along the first and the second optical pathways, respectively; and a photodetector integrated into the photonic integrated circuit and coupled to said first optical pathway for measuring a signal power level on said first optical pathway.

    摘要翻译： 公开了具有多个电路部件的光子集成电路，其可以包括MMI，用于将分别耦合到MMI的第一和第二输出的第一和第二光学路径之间通过的信号功率分开，从而指示第一和第二百分比 分别沿着第一和第二光学路径的信号功率; 以及集成到所述光子集成电路中并耦合到所述第一光学路径以用于测量所述第一光学路径上的信号功率电平的光电检测器。

    SOA-MZI device fault isolation
    6.
    发明授权
    SOA-MZI device fault isolation 失效
    SOA-MZI设备故障隔离

    公开(公告)号：US07440179B2

    公开(公告)日：2008-10-21

    申请号：US10446451

    申请日：2003-05-28

    申请人： Mohammad Laham ,  Boris Stefanov

    发明人： Mohammad Laham ,  Boris Stefanov

    IPC分类号： H01S5/00 ,  H04B10/08 ,  H04B10/12

    CPC分类号： H01S5/4025 ,  G02B6/2813 ,  H01S5/5045

    摘要： The method of isolating faults internal to, for example, from tonic integrated circuits by diverting a portion of certain input and output signals to integrated photo detectors. By analyzing the admitted optical signal in each of plural photo detectors, falls within the circuit can be isolated.

    摘要翻译： 通过将某些输入和输出信号的一部分转移到集成的光电检测器来将故障内部隔离到强调集成电路的方法。 通过分析多个光电检测器中的每一个中允许的光信号，可以隔离电路内的下降。

    SOA-MZI device fault isolation
    7.
    发明授权
    SOA-MZI device fault isolation 失效
    SOA-MZI设备故障隔离

    公开(公告)号：US07633674B2

    公开(公告)日：2009-12-15

    申请号：US12254380

    申请日：2008-10-20

    申请人： Mohammad Laham ,  Boris Stefanov

    发明人： Mohammad Laham ,  Boris Stefanov

    IPC分类号： H01S5/00 ,  H04B10/08 ,  G02B6/28 ,  H04B10/12

    CPC分类号： H01S5/4025 ,  G02B6/2813 ,  H01S5/5045

    摘要： A photonic integrated circuit having a plurality of circuit components, is disclosed, which may include an MMI for splitting signal power passing therethrough among first and second optical pathways coupled to first and second outputs, respectively, of the MMI, thereby directing first and second percentages of the signal power along the first and the second optical pathways, respectively; and a photodetector integrated into the photonic integrated circuit and coupled to said first optical pathway for measuring a signal power level on said first optical pathway.

    摘要翻译： 公开了具有多个电路部件的光子集成电路，其可以包括MMI，用于将分别耦合到MMI的第一和第二输出的第一和第二光学路径之间通过的信号功率分开，从而指示第一和第二百分比 分别沿着第一和第二光学路径的信号功率; 以及集成到所述光子集成电路中并耦合到所述第一光学路径以用于测量所述第一光学路径上的信号功率电平的光电检测器。

    Bit-rate and format insensitive all-option clock extraction circuit
    9.
    发明授权
    Bit-rate and format insensitive all-option clock extraction circuit 有权
    比特率和格式不灵敏的全光时钟提取电路

    公开(公告)号：US06678086B2

    公开(公告)日：2004-01-13

    申请号：US10195766

    申请日：2002-07-15

    申请人： Bharat Dave ,  Doruk Engin ,  Kwang Kim ,  Mohammad Laham ,  Julio Martinez ,  Olga Nedzhvetskaya ,  Jithamithra Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Buu Thai

    发明人： Bharat Dave ,  Doruk Engin ,  Kwang Kim ,  Mohammad Laham ,  Julio Martinez ,  Olga Nedzhvetskaya ,  Jithamithra Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Buu Thai

    IPC分类号： G02F135

    CPC分类号： H04B10/299 ,  H04L7/0075

    摘要： A method and circuit are presented for the all optical recovery of the clock signal from an arbitrary optical data signal. The method involves two stages. A first stage preprocesses the optical signal by converting a NRZ signal to a PRZ signal, or if the input optical signal is RZ, by merely amplifying it. In a preferred embodiment this stage is implemented via an integrated SOA in each arm of an asymmetric interferometric device. The output of the preprocessing stage is fed to a clock recovery stage, which consists of a symmetric interferometer that locks on to the inherent clock signal by using the second stage input signal to trigger two optical sources to self oscillate at the clock rate. In a preferred embodiment the second stage is implemented via SOAs integrated in the arms of an interferometer, with two DFB lasers as terminuses. The output of the interferometer is an optical clock signal at the clock rate of the original input.

    摘要翻译： 提出了一种用于从任意光数据信号对时钟信号进行全光学恢复的方法和电路。 该方法涉及两个阶段。 第一级通过将NRZ信号转换为PRZ信号，或者如果输入光信号是RZ，则仅通过放大来预处理光信号。 在优选实施例中，该阶段通过不对称干涉仪装置的每个臂中的集成SOA来实现。 预处理阶段的输出被馈送到时钟恢复阶段，时钟恢复阶段包括通过使用第二级输入信号来锁定固有时钟信号的对称干涉仪，以触发两个光源以时钟速率自振荡。 在优选实施例中，第二级通过集成在干涉仪的臂中的SOA实现，其中两个DFB激光器作为终端。 干涉仪的输出是以原始输入的时钟速率的光时钟信号。