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    Integrateable band filter using waveguide grating routers
    31.
    发明申请
    Integrateable band filter using waveguide grating routers 有权

    公开(公告)号：US20060008209A1

    公开(公告)日：2006-01-12

    申请号：US11217625

    申请日：2005-09-01

    Applicant: Christopher Doerr

    Inventor： Christopher Doerr

    IPC: G02B6/26 ,  G02B6/42

    CPC classification number: G02B6/12021

    Abstract: The inventors propose herein a novel band filter design for planar lightwave circuits. In one embodiment of the present invention, the band filter includes two waveguide grating routers interconnected by a third waveguide grating, wherein waveguides comprising the third waveguide grating have unequal path lengths. In addition, the waveguides in the third grating are partitioned into sets of adjacent waveguides wherein each set corresponds to a particular wavelength band for the filter. The individual sets of waveguides are spaced at their connection to the second waveguide grating router such that optical signals within predetermined, different optical wavelength bands are routed to different output ports of the band filter. Some of the advantages of this novel band filter include compactness, sharp passband corners, low spectral ripple, and a lack of chromatic dispersion.

    Hang tag and method of applying hang tag to an elongated object
    32.
    发明授权
    Hang tag and method of applying hang tag to an elongated object 失效
    挂标签和将吊牌应用于细长对象的方法

    公开(公告)号：US06267152B1

    公开(公告)日：2001-07-31

    申请号：US09506757

    申请日：2000-02-18

    Applicant: Christopher Doerr ,  Amiel Hepp ,  Robert Voss

    Inventor： Christopher Doerr ,  Amiel Hepp ,  Robert Voss

    IPC: B21F902

    CPC classification number: B65C3/02 ,  B65C7/00

    Abstract: A hang tag is disclosed. The hang tag has first and second surfaces, which are preferably planar. A slot is defined between the first and second surfaces. Desirably, the slot extends at least about 0.25 inches in one direction and at least about 1 inch in another direction. Also disclosed is a method and an apparatus for automatically applying a hang tag to an elongated object (e.g., an electrical cord such as a cord set), with a machine that is suitable for applying a securement strap to an object. The method includes providing a hang tag having a slot therein. The hang tag is aligned with the machine so that when the securement strap is ejected from the machine, it passes through the slot, forms a loop around the elongated object, and is tensioned around the object. As such, the securement strap serves to attach the hang tag to the elongated object in a stationary manner.

    Abstract translation: 公开了吊牌。 吊牌具有第一和第二表面，其优选是平面的。 在第一和第二表面之间限定一个槽。 理想地，狭槽在一个方向上延伸至少约0.25英寸，在另一个方向上延伸至少约1英寸。 还公开了一种用于将悬挂标签自动应用于细长物体（例如电线，例如电线组）的方法和装置，其中适用于将固定带施加到物体上的机器。 该方法包括提供其中具有槽的吊牌。 吊牌与机器对齐，使得当固定带从机器上弹出时，其穿过狭槽，围绕细长物体形成环，并且在物体周围张紧。 因此，固定带用于以固定的方式将吊牌附接到细长物体。

    Optical equalization of multi-level symbol constellations
    35.
    发明授权
    Optical equalization of multi-level symbol constellations 有权
    多级符号星座的光学均衡

    公开(公告)号：US07733562B2

    公开(公告)日：2010-06-08

    申请号：US11772110

    申请日：2007-06-29

    Applicant: Christopher Doerr ,  Alan Gnauck ,  Gregory Raybon ,  Peter Winzer

    Inventor： Christopher Doerr ,  Alan Gnauck ,  Gregory Raybon ,  Peter Winzer

    IPC: H04B10/158 ,  H04B10/06 ,  H04B10/12

    CPC classification number: H04B10/2507 ,  H04B10/541 ,  H04B10/548

    Abstract: A method of optically equalizing a multi-level (amplitude or phase) optical signal through the effect of an optical equalizer wherein the optical equalizer (OEQ) is placed at either a transmission end or a receiver end of the optical communications link and a tap delay characteristic of the OEQ need not be determined by symbol spacing, rather it may advantageously be adjusted to desirably compensate non-linear mapping performed in the modulation process or simultaneous operation on a plurality of wavelength division multiplexed (WDM) channels.

    Abstract translation: 一种通过光学均衡器的作用对多电平（幅度或相位）光信号进行光学均衡的方法，其中光均衡器（OEQ）被放置在光通信链路的发射端或接收端，以及抽头延迟 OEQ的特征不需要由符号间隔确定，而是可以有利地调整以期望地补偿在多个波分复用（WDM）信道上的调制过程中执行的非线性映射或同时操作。

    Low-ripple optical device
    37.
    发明授权
    Low-ripple optical device 失效
    低纹波光学器件

    公开(公告)号：US07373039B1

    公开(公告)日：2008-05-13

    申请号：US11617316

    申请日：2006-12-28

    Applicant: Christopher Doerr

    Inventor： Christopher Doerr

    IPC: G02B6/28 ,  H04J14/02

    CPC classification number: H04J14/02 ,  G02B6/12021 ,  G02B6/356

    Abstract: A low-ripple optical device comprising an optical demultiplexer structure and an optical multiplexer structure cascaded together wherein one of the structures exhibits n passband maxima and the other device exhibits n+1 passband maxima.

    Abstract translation: 一种低纹波光学器件，包括级联在一起的光解复用器结构和光复用器结构，其中一个结构呈现n个通带最大值，另一个器件呈现n + 1个通带最大值。

    Orthogonal heterodyne optical signal-to-noise-ratio (OSNR) monitoring method and apparatus
    38.
    发明授权
    Orthogonal heterodyne optical signal-to-noise-ratio (OSNR) monitoring method and apparatus 有权
    正交外差光信噪比（OSNR）监测方法及装置

    公开(公告)号：US07149407B1

    公开(公告)日：2006-12-12

    申请号：US11365742

    申请日：2006-02-28

    Applicant: Christopher Doerr ,  Daniel Kilper ,  Lothar Moeller ,  Roland Ryf ,  Chongjiin Xie

    Inventor： Christopher Doerr ,  Daniel Kilper ,  Lothar Moeller ,  Roland Ryf ,  Chongjiin Xie

    IPC: G02B6/00

    CPC classification number: H04B10/07953

    Abstract: An orthogonal heterodyne in-band optical signal-to-noise-ratio (OSNR) monitoring method and apparatus that use the polarization characteristics of two narrow bandwidth filtered optical spectral components which is not only insensitive to the effects of polarization mode dispersion (PMD) and inter-channel cross-phase modulation (XPM) induced nonlinear polarization scattering, but also independent of bit rate and modulation format. The monitoring method is demonstrated for both linear and nonlinear systems.

    Abstract translation: 使用两个窄带滤波光谱分量的偏振特性的正交外差带内光信噪比（OSNR）监测方法和装置，其不仅对偏振模色散（PMD）的影响不敏感，而且 信道间相位调制（XPM）引起非线性偏振散射，而且与比特率和调制格式无关。 线性和非线性系统的监测方法都被证明。

    Wavelength-selective switch and integrated wavelength demultiplexer using stacked planar lightwave circuits
    39.
    发明申请
    Wavelength-selective switch and integrated wavelength demultiplexer using stacked planar lightwave circuits 有权
    波长选择开关和使用堆叠平面光波电路的集成波长解复用器

    公开(公告)号：US20060198575A1

    公开(公告)日：2006-09-07

    申请号：US11073010

    申请日：2005-03-04

    Applicant: Christopher Doerr ,  Dan Marom

    Inventor： Christopher Doerr ,  Dan Marom

    IPC: G02B6/35 ,  G02B6/28

    CPC classification number: G02B6/356 ,  G02B6/12011 ,  G02B6/12021 ,  G02B6/12026 ,  G02B6/3512 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0026 ,  H04Q2011/0032

    Abstract: Wavelength-selective switches (WSSs) having embedded multiplexer or demultiplexer functionality include a stack of planar waveguide circuits (PLCs) in which all but one of the PLCs have identical features consisting of a single waveguide connected to a free space region, further connected to a waveguide array that terminates at the PLC edge facet, which are placed at the front focal plane of a lens, generating a spectrally resolved optical signal at the back focal plane of the lens. Due to the use of a single lens, the spectrally resolved optical signal of all the PLCs are superimposed, differing only by propagation direction. A tilting micro-mirror array at the back focal plane reflects the spectral components, implementing a wavelength-selective switch. The reflected light can couple to any of the remaining PLCs, for multiplexing, or to the different PLC in the stack, which implements the multiplexer/demultiplexer.

    Abstract translation: 具有嵌入式多路复用器或解复用器功能的波长选择开关（WSS）包括一组平面波导电路（PLC），其中除了一个PLC之外的所有PLC具有相同的特征，其包括连接到自由空间区域的单个波导，还连接到 波导阵列终止于位于透镜的前焦平面处的PLC边缘小平面处，在透镜的后焦平面处产生光谱分辨的光信号。 由于使用单个透镜，所有PLC的光谱分辨光信号被叠加，仅由传播方向不同。 在后焦平面处的倾斜微镜阵列反映光谱分量，实现波长选择性开关。 反射光可以耦合到任何剩余的PLC，用于多路复用，或耦合到栈中的不同的PLC，这实现了多路复用器/解复用器。

    Method and apparatus for mitigating intersymbol interference from optical filtering
    40.
    发明申请
    Method and apparatus for mitigating intersymbol interference from optical filtering 失效
    减轻光学滤波中符号间干扰的方法和装置

    公开(公告)号：US20060067695A1

    公开(公告)日：2006-03-30

    申请号：US10955229

    申请日：2004-09-30

    Applicant: Christopher Doerr ,  Daniel Fishman ,  Xiang Liu

    Inventor： Christopher Doerr ,  Daniel Fishman ,  Xiang Liu

    IPC: H04J14/02

    CPC classification number: H04B10/2941 ,  G02B6/29382

    Abstract: A method and apparatus for mitigating intersymbol interference (ISI) from narrow-band optical filtering and improving transmission performance by filtering multichannel optical signals using an optical filter device that exhibits a desired loss ripple in the transmittance profile of the filter passband.

    Abstract translation: 一种通过窄带光学滤波来减轻符号间干扰（ISI）的方法和装置，并且通过使用在滤波器通带的透射率分布中表现出期望的损耗波动的滤光器件对多通道光信号进行滤波来提高传输性能。

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