Reconfigurable optical add/drop multiplexer
    61.
    发明申请
    Reconfigurable optical add/drop multiplexer 失效
    可重配置的光分插复用器

    公开(公告)号:US20070053633A1

    公开(公告)日:2007-03-08

    申请号:US11204624

    申请日:2005-08-16

    Abstract: A reconfigurable optical add/drop multiplexer (ROADM) includes a first optical dynamic gain equalization filter (DGEF) having a first input for receiving an initial wavelength division multiplexed (WDM) signal, a first output for sending a phase shifted WDM signal, and a second output connected to a demultiplexer for demultiplexing a WDM drop signal thereby producing a plurality of drop channels. A second DGEF having a first input for receiving the phase shifted WDM signal, a second input connected to a multiplexer, for multiplexing a plurality of add channels to produce thereby a wavelength division multiplexed (WDM) add signal, and an output for sending a second adjusted WDM signal. The ROADM allows for the channels from the initial WDM signal to be dropped, added and equalized.

    Abstract translation: 可重新配置的光分插复用器(ROADM)包括第一光学动态增益均衡滤波器(DGEF),其具有用于接收初始波分复用(WDM)信号的第一输入端,用于发送相移WDM信号的第一输出端,​​以及 第二输出连接到解复用器,用于对WDM丢弃信号进行解复用,从而产生多个丢弃信道。 具有用于接收相移WDM信号的第一输入端的第二DGEF,连接到多路复用器的第二输入端,用于多路复用多个附加通道以产生波分复用(WDM)加法信号,以及用于发送第二 调整后的WDM信号。 ROADM允许来自初始WDM信号的信道被丢弃,相加和均衡。

    Tunable dispersion compensator
    62.
    发明申请
    Tunable dispersion compensator 有权
    可调谐色散补偿器

    公开(公告)号:US20050058398A1

    公开(公告)日:2005-03-17

    申请号:US10760516

    申请日:2004-01-20

    Abstract: A method and apparatus for implementing a colorless polarization independent Mach-Zehnder-interferometer (MZI)-based tunable dispersion compensator (TDC) that has only three MZI stages (two in a reflective MZI-TDC ) and two adjustable couplers which are responsive to one control voltage, making it compact, low power, and simple to fabricate, test, and operate. Polarization independence is obtained by using a half-wave plate positioned across the midpoints of the two path lengths of middle stage MZI of the three stage MZI-TDC and by using a quarter-wave plate in front of a reflective facet of the reflective MZI-TDC. A cascaded MZI-TDC arrangement with also only a single control is formed by cascading two MZI-TDC arrangements and driving all adjustable couplers with the same control signal.

    Abstract translation: 一种用于实现仅具有三个MZI级(两个在反射MZI-TDC中)的无色偏振独立马赫 - 曾德干涉仪(MZI)的可调谐色散补偿器(TDC)的方法和装置,以及响应于一个 控制电压,使其紧凑,功耗低,制造,测试和操作简单。 通过使用位于三级MZI-TDC的中间级MZI的两个路径长度的中点处的半波片并通过在反射MZI-TDC的反射小面前面使用四分之一波片来获得极化独立性, TDC。 通过级联两个MZI-TDC布置并且驱动具有相同控制信号的所有可调耦合器来形成级联的MZI-TDC布置,也只有单个控制。

    Tunable dispersion compensator
    63.
    发明申请
    Tunable dispersion compensator 有权
    可调谐色散补偿器

    公开(公告)号:US20050058397A1

    公开(公告)日:2005-03-17

    申请号:US10664340

    申请日:2003-09-17

    Abstract: A method and apparatus for implementing a new type of colorless Mach-Zehnder-interferometer (MZI)-based tunable dispersion compensator (TDC) that has only three MZI stages (two in a reflective version) and two adjustable couplers which are responsive to one control voltage, making it compact, low power, and simple to fabricate, test, and operate.

    Abstract translation: 一种实现一种新型无色马赫 - 曾德干涉仪(MZI)的可调谐色散补偿器(TDC)的方法和装置,该调制色散补偿器仅具有三个MZI级(两个反射型)和两个可调节耦合器,这些可调耦合器响应于一个控制 电压,使其紧凑,功率低,制造,测试和操作简单。

    Planar lightwave wavelength blocker devices using micromachines

    公开(公告)号:US20050025426A1

    公开(公告)日:2005-02-03

    申请号:US10927610

    申请日:2004-08-26

    Abstract: A method and apparatus are disclosed for selectively passing or blocking an optical signal using an opaque or reflective shutter that is selectively positioned in or out of the light path. The disclosed wavelength blocker can be employed to filter input wavelength-division multiplexed (WDM) signal comprised of N wavelength channels, where a mechanical shutter array selectively passes each of the N wavelength channels. Each mechanical shutter may be controlled, for example, by a micromachine control element that physically lifts the shutter into or out of the lightpath. The disclosed wavelength blockers may be utilized in wavelength-selective cross connects, as well as other optical devices. In an exemplary wavelength-selective cross connect, an array of mirrors are employed in a planar waveguide having two sets of waveguide gratings intersecting at an angle. The mirrors and waveguide gratings are positioned such that if the mirror for a given channel is up (removed from the light path), then that channel passes across the device and exits the corresponding output port (bar state), otherwise the light is reflected by the mirror and exits the opposite output port (bar state).

    Planar lightwave wavelength device using moveable mirrors
    65.
    发明申请
    Planar lightwave wavelength device using moveable mirrors 有权
    平面光波波长设备使用可移动镜

    公开(公告)号:US20050018957A1

    公开(公告)日:2005-01-27

    申请号:US10916933

    申请日:2004-08-12

    Abstract: A method and apparatus are disclosed for adjusting the phase of an optical signal by varying the path length of the optical signal using one or more moveable mirrors. The phase adjustment techniques of the present invention may be employed in various optical devices, including 1×n optical switches. The position of the mirrors may be controlled, for example, using micromachined control elements that physically move the mirror along the lightpath. An exemplary 2-by-2 optical switch includes two waveguides configured to include a coupler region. A mirror is positioned at the output of each waveguide. The position of at least one of the mirrors may be adjusted along the optical path and the mirrors reflect the light exiting from the end of the waveguides back into the same waveguide after an adjustable phase delay due to the round trip through an adjustable air gap between the waveguides and corresponding mirrors. A received optical signal is split in the coupler region into two generally equal components and the phase of at least one component of the optical signal is adjusted by controlling the relative position of the mirrors. The optical components are then recombined and the optical signal appears at the appropriate output port of the optical switch. The present invention may also be applied in wavelength selective optical switches that support multiple optical channels. A number of techniques are also disclosed for fabricating optical devices in accordance with the present invention.

    Abstract translation: 公开了一种用于通过使用一个或多个可移动反射镜改变光信号的路径长度来调整光信号的相位的方法和装置。 本发明的相位调整技术可以用在各种光学装置中,包括1xn光开关。 可以例如使用微机械加工的控制元件来控制反射镜的位置,该微机械控制元件沿着光路物理地移动反射镜。 示例性的2×2光开关包括被配置为包括耦合器区域的两个波导。 镜子位于每个波导的输出处。 可以沿着光路调整至少一个反射镜的位置,并且在经过可调节的相位延迟之后,由于通过可调节气隙之间的往返,反射镜将从波导末端射出的光反射回相同的波导中 波导和相应的反射镜。 接收到的光信号在耦合器区域中分成两个大致相等的分量,并且通过控制反射镜的相对位置来调节光信号的至少一个分量的相位。 然后将光学部件重新组合,并且光信号出现在光开关的适当的输出端口处。 本发明也可以应用于支持多个光通道的波长选择光开关中。 还公开了用于制造根据本发明的光学器件的许多技术。

    Hang tag and method of applying hang tag to an elongated object
    66.
    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:US06845581B2

    公开(公告)日:2005-01-25

    申请号:US09771430

    申请日:2001-01-26

    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。

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