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    Pattern-dependent error counts for use in correcting operational parameters in an optical receiver
    7.
    发明授权
    Pattern-dependent error counts for use in correcting operational parameters in an optical receiver 有权
    用于校正光接收机中的操作参数的模式相关误差计数

    公开(公告)号：US07574146B2

    公开(公告)日：2009-08-11

    申请号：US10888329

    申请日：2004-07-09

    申请人： Ting-Kuang Chiang ,  Vincent G. Dominic ,  Robert B. Taylor

    发明人： Ting-Kuang Chiang ,  Vincent G. Dominic ,  Robert B. Taylor

    IPC分类号： H04B10/06 ,  H03K5/159

    CPC分类号： H04B10/6971 ,  H04L1/20

    摘要： An optical transmission network includes an optical transmitter photonic integrated circuit (TxPIC) chip, utilized in an optical transmitter and has a plurality of monolithic modulated sources integrated for multiple signal channels on the same semiconductor chip is provided with channel equalization at the optical receiver side of the network that permits one or more such integrated modulated sources in the TxPIC chip to be out of specification thereby increasing the chip yield and reducing manufacturing costs in the deployment of such TxPIC chips. FEC error counts at the FEC decoder on the optical receiver side of the network includes counters that accumulate a plurality of bit pattern-dependent error counts based on different N-bit patterns in the received data bit stream. The accumulated counts of different N-bit patterns are utilized to provide for corrections to threshold and phase relative to the bit eye pattern as well as provided for weight coefficients for the optical receiver equalization system. The deployment of this type of equalization in a digital OEO REGEN network substantially reduces, if not eliminates, the need for dispersion compensating fiber (DCF) or EDFAs in an optical link of the network and enhances the optical receiver tolerance to chromatic dispersion (CD) so that an increase in chip yield is realized for TxPIC chips not operating with acceptable operational parameters, particularly with a desired frequency chirp parameter relative to at least one of the TxPIC modulated sources.

    摘要翻译： 光传输网络包括在光发射机中使用的光发射机光子集成电路（TxPIC）芯片，并且具有在同一半导体芯片上为多信号通道集成的多个单片调制源，在光接收机侧提供信道均衡 允许TxPIC芯片中的一个或多个这样的集成调制源的网络超出规范，从而增加了芯片产量并降低了这种TxPIC芯片的部署中的制造成本。 在网络的光接收机侧的FEC解码器处的FEC错误计数包括基于接收的数据比特流中不同的N位模式累积多个与位模式有关的错误计数的计数器。 利用不同N位模式的累积计数来提供相对于位眼图的阈值和相位的校正，以及为光接收机均衡系统提供的权重系数。 在数字OEO REGEN网络中部署这种类型的均衡基本上降低了（如果不消除）在网络的光链路中对色散补偿光纤（DCF）或EDFA的需求，并增强了光接收机对色散（CD）的容限， 使得对于不以可接受的操作参数操作的TxPIC芯片，特别是相对于至少一个TxPIC调制源的期望频率啁啾参数，实现了芯片产量的增加。

    Upgrade of optical amplifier site to a digital optical network site in an optical transmission network
    10.
    发明授权
    Upgrade of optical amplifier site to a digital optical network site in an optical transmission network 有权
    将光放大器位置升级到光传输网络中的数字光网络站点

    公开(公告)号：US07149433B2

    公开(公告)日：2006-12-12

    申请号：US10267274

    申请日：2002-10-08

    申请人： Stephen G. Grubb ,  Matthew L. Mitchell ,  Robert B. Taylor ,  Vincent G. Dominic ,  Alan C. Nilsson

    发明人： Stephen G. Grubb ,  Matthew L. Mitchell ,  Robert B. Taylor ,  Vincent G. Dominic ,  Alan C. Nilsson

    IPC分类号： H04B10/00

    CPC分类号： H04B10/2939 ,  H04B10/291 ,  H04B2210/258 ,  H04J14/02 ,  H04J14/0206 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/0213 ,  H04J14/0221

    摘要： A digital signal channel bypass is provided as bypass around an optical network optical amplifier, in particular, an analog type optical amplifier, such as an EDFA, in an optical transport network or system. The digital signal bypass provides for an ability to maintain the existing optical amplifier OO amplification site while inserting a bypass that provides ultra low-cost OEO REGEN in a digital optical network (DON) utilizing both semiconductor electronic integrated circuit chips and semiconductor photonic integrated circuit (PIC) chips where all the optical components are in semiconductor integrated chip form providing 1R, 2R, 3R or 4R regeneration as well as other signal caring functionality. A salient feature of the digital signal bypass is to regenerate signals in the optical span that are outside the gain bandwidth of the EDFA or other such amplifier.

    摘要翻译： 在光传输网络或系统中，数字信号通道旁路被提供为围绕光网络光放大器，特别是诸如EDFA的模拟型光放大器。 数字信号旁路提供了在使用半导体电子集成电路芯片和半导体光子集成电路（DON）插入在数字光网络（DON）中提供超低成本OEO REGEN的旁路的同时，保持现有光放大器OO放大位置的能力， PIC）芯片，其中所有光学部件都是半导体集成芯片，提供1R，2R，3R或4R再生以及其他信号关联功能。 数字信号旁路的一个显着特征是重新生成在EDFA或其他此类放大器的增益带宽以外的光学跨度中的信号。