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    UPSAMPLING OPTICAL TRANSMITTER
    32.
    发明申请
    UPSAMPLING OPTICAL TRANSMITTER 有权
    UPS光源发射器

    公开(公告)号：US20120082466A1

    公开(公告)日：2012-04-05

    申请号：US12897786

    申请日：2010-10-05

    申请人： Kuang-Tsan Wu ,  John D. McNicol ,  David F. Welch ,  Stephen G. Grubb ,  Pierre Mertz

    发明人： Kuang-Tsan Wu ,  John D. McNicol ,  David F. Welch ,  Stephen G. Grubb ,  Pierre Mertz

    IPC分类号： H04B10/04

    CPC分类号： H04B10/516 ,  H04B10/2575

    摘要： Consistent with the present disclosure, data, in digital form, is received by a transmit nodes of an optical communication, and converted to analog signal by a digital-to-analog converter (DAC) to drive a modulator. The modulator, in turn, modulates light at one of a plurality of wavelengths in accordance with the received data. The modulated light is then transmitted over an optical communication path to a receive node. At the receive node, the modulated optical signal, as well as other modulated optical signals are supplied to a photodetector circuit, which receives additional light at one of the optical signal wavelengths from a local oscillator laser. An analog-to-digital converter (ADC) is provided in the receive node to convert the electrical signals output from the photodetector into digital form. The output from the ADC is then filtered in the electrical domain, such that optical demultiplexing of individual channels is unnecessary.

    摘要翻译： 与本公开一致，数字形式的数据由光通信的发射节点接收，并由数模转换器（DAC）转换为模拟信号以驱动调制器。 调制器又根据接收的数据调制多个波长中的一个波长的光。 然后将调制的光通过光通信路径传输到接收节点。 在接收节点处，调制的光信号以及其它调制的光信号被提供给光电检测器电路，光电检测器电路从本地振荡器激光器接收来自光信号波长之一的附加光。 在接收节点中提供模数转换器（ADC），以将从光电检测器输出的电信号转换为数字形式。 然后在电域中对来自ADC的输出进行滤波，使得各个信道的光解复用是不必要的。

    WAVELENGTH DIVISION MULTIPLEXED OPTICAL COMMUNICATION SYSTEM HAVING VARIABLE CHANNEL SPACINGS
    33.
    发明申请
    WAVELENGTH DIVISION MULTIPLEXED OPTICAL COMMUNICATION SYSTEM HAVING VARIABLE CHANNEL SPACINGS 有权
    具有可变通道间距的波长段多路光通信系统

    公开(公告)号：US20120082453A1

    公开(公告)日：2012-04-05

    申请号：US12897784

    申请日：2010-10-05

    申请人： Kuang-Tsan Wu ,  John D. McNicol ,  David F. Welch ,  Stephen G. Grubb ,  Pierre Mertz

    发明人： Kuang-Tsan Wu ,  John D. McNicol ,  David F. Welch ,  Stephen G. Grubb ,  Pierre Mertz

    IPC分类号： H04J14/00

    CPC分类号： H04J14/06 ,  H04J14/026 ,  H04L1/007

    摘要： Consistent with the present disclosure, data, in digital form, is received by a transmit nodes of an optical communication, and converted to analog signal by a digital-to-analog converter (DAC) to drive a modulator. The modulator, in turn, modulates light at one of a plurality of wavelengths in accordance with the received data. The modulated light is then transmitted over an optical communication path to a receive node. At the receive node, the modulated optical signal, as well as other modulated optical signals are supplied to a photodetector circuit, which receives additional light at one of the optical signal wavelengths from a local oscillator laser. An analog-to-digital converter (ADC) is provided in the receive node to convert the electrical signals output from the photodetector into digital form. The output from the ADC is then filtered in the electrical domain, such that optical demultiplexing of individual channels is unnecessary.

    摘要翻译： 与本公开一致，数字形式的数据由光通信的发射节点接收，并由数模转换器（DAC）转换为模拟信号以驱动调制器。 调制器又根据接收的数据调制多个波长中的一个波长的光。 然后将调制的光通过光通信路径传输到接收节点。 在接收节点处，调制的光信号以及其它调制的光信号被提供给光电检测器电路，光电检测器电路从本地振荡器激光器接收来自光信号波长之一的附加光。 在接收节点中提供模数转换器（ADC），以将从光电检测器输出的电信号转换为数字形式。 然后在电域中对来自ADC的输出进行滤波，使得各个信道的光解复用是不必要的。

    Communication Network with Skew Path Monitoring and Adjustment
    36.
    发明申请
    Communication Network with Skew Path Monitoring and Adjustment 有权
    具有倾斜路径监测和调整的通信网络

    公开(公告)号：US20080175590A1

    公开(公告)日：2008-07-24

    申请号：US11781912

    申请日：2007-07-23

    申请人： Drew D. Perkins ,  David F. Welch ,  Ting-Kuang Chiang ,  Charles H. Joyner ,  Edward E. Sprague ,  Parthiban Kandappan ,  Stephen G. Grubb ,  Biao Lu ,  Prasad Paranjape

    发明人： Drew D. Perkins ,  David F. Welch ,  Ting-Kuang Chiang ,  Charles H. Joyner ,  Edward E. Sprague ,  Parthiban Kandappan ,  Stephen G. Grubb ,  Biao Lu ,  Prasad Paranjape

    IPC分类号： H04B10/00

    CPC分类号： H04J14/02

    摘要： Embodiments of the present invention route a WDM signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is an optical transport network, using either circuit or packet based switching, and wavelength division multiplexed wavelengths and/or optical carrier groups (“OCGs”) over a fiber link to another node in the network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.

    摘要翻译： 本发明的实施例使用至少一些通信路径的偏斜特性来跨越多个通信路径来路由WDM信号。 该网络是光传输网络，其使用电路或分组交换，以及波分复用波长和/或光载波组（“OCG”），通过光纤链路到网络中的另一个节点。 多个通信路径涉及不同的信号和路径属性，例如多个载波波长，光载波组，物理通信路径（不同节点，沿着相同路径的不同光纤，或前述的任何组合）或任何其它微分因素 两条路径之间。

    Semiconductor laser highpower amplifier system
    40.
    发明授权
    Semiconductor laser highpower amplifier system 有权
    半导体激光大功率放大器系统

    公开(公告)号：US06335941B1

    公开(公告)日：2002-01-01

    申请号：US09571711

    申请日：2000-05-15

    申请人： Stephen G. Grubb ,  David F. Welch ,  Raymond Zanoni

    发明人： Stephen G. Grubb ,  David F. Welch ,  Raymond Zanoni

    IPC分类号： H01S330

    CPC分类号： H01S3/0057 ,  B23K26/06 ,  B23K26/064 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/06729 ,  H01S3/06754 ,  H01S3/06787 ,  H01S3/094003 ,  H01S3/094015 ,  H01S3/094026 ,  H01S3/094042 ,  H01S3/094061 ,  H01S3/10023 ,  H01S3/2316 ,  H01S3/2333 ,  H01S5/06216 ,  H01S2301/02

    摘要： A high power laser optical amplifier system for material processing comprises multiple stage fiber amplifiers with rejection of propagating ASE buildup in and between the amplifier stages as well as elimination of SBS noise providing output powers in the range of about 10 &mgr;J to about 100 &mgr;J or more. The system is driven with a time varying drive signal from a modulated semiconductor laser signal source to produce an optical output allowing modification of the material while controlling its thermal sensitivity by varying pulse shapes or pulse widths supplied at a desire repetition rate via modulation of a semiconductor laser signal source to the system to precisely control the applied power application of the beam relative to the thermal sensitivity of the material to be processed. The high power fiber amplifier system has particular utility in high power applications requiring process treatment of surfaces, such as polymeric, organic, ceramic and metal surfaces, e.g., material processing, surface texturing, heat treatment, surface engraving, fine micro-machining, surface ablation, cutting, grooving, bump forming, coating, soldering, sealing, surface diffusion and surface conversion to a compound. A particular example is given for texturing of disk surfaces of magnetic disk media prior to the deposition or coating of a thin magnetic film on the textured surfaces to prevent slider stiction.

    摘要翻译： 用于材料处理的高功率激光光放大器系统包括多级光纤放大器，其抑制在放大器级之间和放大器级之间的传播ASE积聚，以及消除SBS噪声，提供在约10μJ至约100μJ或更大的范围内的输出功率 。 该系统由来自调制的半导体激光信号源的时变驱动信号驱动以产生允许修改材料的光学输出，同时通过改变通过半导体的调制以期望的重复频率提供的脉冲形状或脉冲宽度来控制其热敏感性 激光信号源到系统，以精确地控制光束的施加功率相对于待处理材料的热敏感性。 高功率光纤放大器系统在高功率应用中具有特殊应用，需要对表面进行处理，例如聚合物，有机，陶瓷和金属表面，例如材料加工，表面纹理，热处理，表面雕刻，精细微加工，表面 烧蚀，切割，切槽，凸块形成，涂覆，焊接，密封，表面扩散和表面转化成化合物。 给出了在将磁性薄膜沉积或涂覆在纹理化表面上之前对磁盘介质的磁盘表面进行纹理化以防止滑块粘滞的特定示例。