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    Thermal drift compensation system and method for optical networks
    5.
    发明申请
    Thermal drift compensation system and method for optical networks 有权
    光网络热漂补偿系统及方法

    公开(公告)号：US20070036554A1

    公开(公告)日：2007-02-15

    申请号：US11200295

    申请日：2005-08-09

    申请人： Thomas Weaver

    发明人： Thomas Weaver

    IPC分类号： H04B10/00

    CPC分类号： H04B10/66 ,  H04B10/0779 ,  H04B10/572

    摘要： A system and method for detecting and correcting for thermal shifting of the passbands of an input filter of an optical receiver relative to the passbands of an output of an optical device, such as an optical router, where the router and the receiver are operating at remote locations and at different operating temperatures that cause thermal drifting of the passbands. In one implementation RF signals are impressed on optical signals transmitted by a transmitter to the optical router. Different frequency RF signals are impressed on each of the optical signals and the receiver uses the detected RF frequencies to cancel portions of optical signals that have drifted into adjacent passbands at the optical receiver. In another implementation a mechanically adjustable filter is employed at the receiver which is used to achieve a needed degree of shifting of the receiver passbands to compensate for passband misalignment between the router and the receiver. In another implementation multiple receive channels are employed for each router passband. The various described implementations allow for detecting and correcting of thermal misalignment between the router and receiver passband without the need for controlling the temperature of the router.

    摘要翻译： 一种用于检测和校正光接收机的输入滤波器的通带的热移位的系统和方法，其相对于诸如光路由器的光学设备的输出的通带，其中路由器和接收器在远程操作 位置和不同的工作温度，导致通带的热漂移。 在一个实现中，RF信号被发射机发送到光路由器的光信号上。 在每个光信号上施加不同的频率RF信号，并且接收机使用检测到的RF频率来消除在光接收器处漂移到相邻通带中的光信号的部分。 在另一实现中，在接收机处采用机械可调滤波器，其用于实现接收器通带的所需程度的移位以补偿路由器和接收机之间的通带失准。 在另一实施例中，对于每个路由器通带采用多个接收信道。 各种描述的实现允许检测和校正路由器和接收器通带之间的热失准，而不需要控制路由器的温度。

    Thermal drift compensation system and method for optical networks
    6.
    发明申请
    Thermal drift compensation system and method for optical networks 有权

    公开(公告)号：US20070036552A1

    公开(公告)日：2007-02-15

    申请号：US11200294

    申请日：2005-08-09

    申请人： Thomas Weaver

    发明人： Thomas Weaver

    IPC分类号： H04B10/00

    CPC分类号： H04B10/0779 ,  H04B10/564 ,  H04B10/66

    摘要： A system and method for detecting and compensating for thermal drift in an optical network in a manner that enables an increased number of optical channels to be used on a given optical medium, such as on a single optical fiber. A pair of narrow band, closely spaced optical signals from an optical transmitter function as a “temperature probe” signal. The two narrow band signals are centered within one passband of a filter of an optical device, such as an optical router. When the two narrow band signals are transmitted back to an optical receiver via the router, the magnitudes of the two signals are compared and a determination can be made as to the magnitude and direction of thermal drift of the passbands of the filter of the optical router. A control subsystem is then used to control a heating/cooling subsystem to either heat or cool the transmitter to induce a shift in the optical signals being generated by the transmitter that causes the transmitted optical signals to effectively track the centers of the passbands of the optical router.

    Synthesis of amino acid, N-carboxyanhydrides
    7.
    发明申请
    Synthesis of amino acid, N-carboxyanhydrides 有权
    氨基酸，N-羧酸酐的合成

    公开(公告)号：US20060106229A1

    公开(公告)日：2006-05-18

    申请号：US11259672

    申请日：2005-10-26

    申请人： John Carubia ,  Thomas Weaver ,  Ettigounder Ponnusamy

    发明人： John Carubia ,  Thomas Weaver ,  Ettigounder Ponnusamy

    IPC分类号： C07D207/12 ,  C07C227/02

    CPC分类号： C07D263/44 ,  C07D207/12

    摘要： A process for producing N-carboxyanhydrides is disclosed. The process produces N-carboxyanhydrides as a product and HCl as a by-product. The HCl by-product is purged from the reaction mixture by passing a purge gas through the reaction mixture as a carbonylation reagent is reacting with an amino acid or a salt thereof. The N-carboxyanhydrides produced by this process have a relatively lower chloride impurity content, relatively higher yields can be achieved, and the N-carboxyanhydrides can be produced on a larger scale.

    摘要翻译： 公开了一种生产N-羧酸酐的方法。 该方法产生作为产物的N-羧酸酐和作为副产物的HCl。 当羰基化试剂与氨基酸或其盐反应时，通过使清洗气体通过反应混合物，将HCl副产物从反应混合物中吹扫。 通过该方法制备的N-羧酸酐具有相对较低的氯化物杂质含量，可以获得相对较高的产率，并且可以以更大规模生产N-羧酸酐。

    Method of identifying and labeling optical conduits
    8.
    发明申请
    Method of identifying and labeling optical conduits 有权
    识别和标记光导管的方法

    公开(公告)号：US20050271316A1

    公开(公告)日：2005-12-08

    申请号：US10862984

    申请日：2004-06-08

    申请人： Thomas Weaver

    发明人： Thomas Weaver

    IPC分类号： G02B6/02 ,  G02B6/34 ,  G02B6/44

    CPC分类号： G02B6/0208 ,  G02B6/4482

    摘要： A methods for labeling or coding optical conduits is disclosed. The method comprises a steps of providing an optical conduit, and utilizing reflected light resulting from the transmission of at least one light pulse along the optical conduit to generate a multi-digit code. Still further, the method comprises a step of utilizing the multi-digit code to distinguish the optical conduit from other optical conduits. The utilization of Bragg gratings to code or label optical conduits with a unique multi-digit code is also disclosed.

    摘要翻译： 公开了用于标记或编码光导管的方法。 该方法包括以下步骤：提供光导管，并利用由光导管传输至少一个光脉冲而产生的反射光，以产生多位代码。 此外，该方法包括利用多位代码将光导管与其它光导管区分开的步骤。 还公开了利用布拉格光栅来编码或标记具有唯一的多位代码的光导管。