System for higher-order dispersion compensation including a delay line
    2.
    发明授权
    System for higher-order dispersion compensation including a delay line 失效
    用于高阶色散补偿的系统,包括延迟线

    公开(公告)号:US07016567B2

    公开(公告)日:2006-03-21

    申请号:US10323952

    申请日:2002-12-18

    IPC分类号: G02B6/34

    摘要: A higher-order dispersion compensator for tuning a polarization controlled signal having a first polarization mode dispersion component, a second order polarization mode dispersion component, and a variable chromatic dispersion component. The compensator includes a first tuning element that adjusts the first order polarization mode dispersion component of the polarization controlled signal. The compensator also includes a second tuning element that adjusts the second order polarization mode dispersion component and the variable chromatic dispersion component of the polarization controlled signal.

    摘要翻译: 用于调谐具有第一偏振模色散分量,二阶偏振模色散分量和可变色散分量的偏振控制信号的高阶色散补偿器。 补偿器包括调整偏振控制信号的一阶偏振模色散分量的第一调谐元件。 补偿器还包括调整偏振控制信号的二阶偏振模色散分量和可变色散分量的第二调谐元件。

    Method for higher-order dispersion compensation
    3.
    发明授权
    Method for higher-order dispersion compensation 有权
    高阶色散补偿方法

    公开(公告)号:US06829409B2

    公开(公告)日:2004-12-07

    申请号:US10323301

    申请日:2002-12-18

    IPC分类号: G02B626

    摘要: A method for compensating for higher-order dispersion of an incoming optical communications signal in accordance with the present invention includes the steps of compensating the signal for first order polarization mode dispersion; compensating the signal for second order polarization mode dispersion; and compensating the signal for variable chromatic dispersion. Additionally, the method may include the steps of compensation for fixed chromatic dispersion and controlling the polarization of the incoming signal. The signal may be monitored after the compensating steps and the degree of compensation may be tuned based on the monitoring. The step of compensating the signal for first order polarization mode dispersion may include the steps of controlling the polarization of the signal; splitting the signal into a first and a second orthogonal polarization components; reflecting the first polarization component in a fixed linearly chirped grating; reflecting the second polarization component in a tuned linearly chirped grating; and recombining the first and the second polarization components.

    摘要翻译: 根据本发明的用于补偿入射光通信信号的高阶色散的方法包括以下步骤:补偿一阶偏振模色散的信号; 补偿二阶偏振模色散的信号; 并补偿可变色散的信号。 此外,该方法可以包括补偿固定色散并控制输入信号的偏振的步骤。 可以在补偿步骤之后监视信号,并且可以基于监视来调整补偿程度。 补偿一阶偏振模色散信号的步骤可包括控制信号极化的步骤; 将信号分解成第一和第二正交偏振分量; 反映固定线性啁啾光栅中的第一偏振分量; 反映调谐线性啁啾光栅中的第二偏振分量; 并重新组合第一和第二偏振分量。

    System for polarization mode dispersion compensation
    4.
    发明授权
    System for polarization mode dispersion compensation 失效
    偏振模色散补偿系统

    公开(公告)号:US06748126B2

    公开(公告)日:2004-06-08

    申请号:US10036987

    申请日:2001-12-31

    IPC分类号: G02B600

    摘要: An adaptive polarization mode dispersion compensator including a polarization controller and a differential polarization delay unit. The polarization controller converts incoming light of an arbitrary polarization to a controller output signal having a desired state of polarization. The differential polarization delay unit is optically coupled to receive the controller output signal from the polarization controller. The differential polarization delay unit includes a polarization beam splitter element and a first and a second birefringent optical waveguide. At least one tuning mechanism is coupled to at least one of the gratings, wherein the tuning mechanism variably adjusts one of the reference reflection points with respect to the other reference reflection point. A combiner element recombines the two reflected orthogonal polarization signals into a delay line output. A signal quality analyzer evaluates the quality of the differential polarization delay unit output signal and provides a control signal to the polarization controller and the differential polarization delay unit.

    摘要翻译: 一种包括偏振控制器和差分偏振延迟单元的自适应偏振模色散补偿器。 偏振控制器将任意偏振的入射光转换为具有期望的偏振状态的控制器输出信号。 差分偏振延迟单元被光学耦合以从偏振控制器接收控制器输出信号。 差分偏振延迟单元包括偏振分束器元件和第一和第二双折射光波导。至少一个调谐机构耦合到至少一个光栅,其中调谐机构相对于参考反射点可变地调节参考反射点之一 到另一个参考反射点。 组合器元件将两个反射的正交偏振信号重新组合成延迟线输出。 信号质量分析器评估差分极化延迟单元输出信号的质量,并向偏振控制器和差分偏振延迟单元提供控制信号。

    Method for polarization mode dispersion compensation
    7.
    发明授权
    Method for polarization mode dispersion compensation 失效
    偏振模色散补偿方法

    公开(公告)号:US06907199B2

    公开(公告)日:2005-06-14

    申请号:US10037024

    申请日:2001-12-31

    摘要: A method for compensating for polarization mode dispersion of an incoming optical communications signal including the step of orienting the state of polarization of the incoming optical communications signal with respect to the axes of a polarization splitter. The communications signal is split into a first and a second orthogonal states of polarization at a split point. The first of the polarization states is directed to a first birefringent optical waveguide having a first chirped grating having a first reference reflection point. The second of the polarization states is directed to a second birefringent optical waveguide having a second chirped grating having a chirp pattern substantially similar to that of the first chirped grating and having a second reference reflection point. The optical path length from the second reflection point to the split point is adjustably varied to compensate for polarization dispersion between the first and second states of polarization. The first and second polarization states are then recombined into an output signal.

    摘要翻译: 一种用于补偿入射光通信信号的偏振模色散的方法,包括相对于偏振分离器的轴定向入射光通信信号的偏振状态的步骤。 通信信号在分离点被分成第一和第二正交偏振状态。 第一偏振态涉及具有第一啁啾光栅的第一双折射光波导,其具有第一参考反射点。 第二个偏振状态指向具有第二啁啾光栅的第二双折射光波导,第二啁啾光栅具有基本上类似于第一啁啾光栅的啁啾图案并具有第二参考反射点。 从第二反射点到分割点的光程长度可调,以补偿第一和第二极化状态之间的偏振色散。 然后将第一和第二极化状态重新组合成输出信号。

    Method and apparatus for curling light-curable dental materials
    8.
    发明授权
    Method and apparatus for curling light-curable dental materials 失效
    光固化牙科材料的固化方法和装置

    公开(公告)号:US06419483B1

    公开(公告)日:2002-07-16

    申请号:US09516282

    申请日:2000-03-01

    IPC分类号: A61C100

    CPC分类号: A61C19/004

    摘要: A method and apparatus for curing photocurable dental materials involve a solid state light emitter and a source of electrical current connected to the light emitter. The source of electrical current provides a current to the light emitter that is sufficient to reduce the lifetime of the light emitter to less than 10 hours. The intensity of light from the light emitter is substantially increased and the apparatus can be conveniently disposed of after use on a single patient. A light guide that includes two conical optical surfaces collects light from the solid state light emitter and optionally directs the light to a third optical surface which has the shape of an elongated, curved tube.

    摘要翻译: 用于固化光固化牙科材料的方法和设备包括固态光发射器和连接到光发射器的电流源。 电流源向光发射器提供足以将发光体的寿命减少到小于10小时的电流。 来自光发射器的光的强度显着增加,并且可以在使用后方便地将装置放置在单个患者身上。 包括两个锥形光学表面的光导收集来自固态光发射器的光,并且可选地将光导向具有细长弯曲管形状的第三光学表面。

    Fiber optic ribbon cable with pre-installed locations for subsequent
connectorization
    9.
    发明授权
    Fiber optic ribbon cable with pre-installed locations for subsequent connectorization 失效
    光纤带状电缆,具有预先安装的位置,用于后续连接

    公开(公告)号:US5611017A

    公开(公告)日:1997-03-11

    申请号:US544611

    申请日:1995-10-18

    IPC分类号: G02B6/38 G02B6/44

    摘要: A fiber optic ribbon cable has release elements manufactured in line with the ribbon cable so as to provide access points to the optical fibers contained therein to allow for easy application of a connector in the field. A pair of adhesive tape layers is provided about the optical fibers to create a fiber optic ribbon cable. At least one release element is provided between the adhesive tape layers and the optical fibers at one or more access points along the ribbon cable to allow for subsequent connectorization of the fibers therein. When the ribbon cable needs to be equipped with a connector, the cable is cut near the midpoint of one of the access point. After the cable is cut the adhesive tape layers and the at least one release element may be easily peeled back exposing the optical fibers. A connector is then installed onto the exposed fibers. The at least one release element is removed from the tape layers and the tape is then secured to the connector with any excess tape being trimmed off.

    摘要翻译: 光纤带状电缆具有与带状电缆一致制造的释放元件,以便提供其中容纳的光纤的接入点,以便于在现场容易地应用连接器。 围绕光纤提供一对胶带层以形成光纤带状电缆。 在沿着带状电缆的一个或多个接入点处的胶带层和光纤之间提供至少一个释放元件,以允许其中的纤维随后的连接。 当带状电缆需要配备连接器时,电缆在接近点之一的中点附近被切割。 在电缆被切割之后,胶带层和至少一个释放元件可能容易地剥离以暴露光纤。 然后将连接器安装到暴露的光纤上。 将至少一个释放元件从带层移除,然后将带子固定到连接器上,任何多余的带被修剪掉。