Tunable Dispersion Compensator with Minimum Differential Group Delay
    2.
    发明申请
    Tunable Dispersion Compensator with Minimum Differential Group Delay 有权
    具有最小差分组延迟的可调谐色散补偿器

    公开(公告)号:US20090185771A1

    公开(公告)日:2009-07-23

    申请号:US12351843

    申请日:2009-01-11

    IPC分类号: G02B6/00

    摘要: In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD(bias) having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.

    摘要翻译: 在用于在光学系统中提供色​​散补偿的方法和系统中,耦合到光学系统中的至少一个通路,其中连接有可调谐线性调频光纤布拉格光栅,每个这样的光栅提供相应的可调量的色散。 对于每个这样的光栅,至少一个相应的DGD元件连接到相应的通路中。 在给定路径中的所有这些相应的DGD元件的集合引入了具有绝对值的偏差差分群延迟DGD(偏置),对于光栅的至少一个调谐值,其基本上等于由光栅引入的差分群延迟。

    Tunable dispersion compensator with minimum differential group delay
    5.
    发明授权
    Tunable dispersion compensator with minimum differential group delay 有权
    具有最小差分群延迟的可调谐色散补偿器

    公开(公告)号:US07831114B2

    公开(公告)日:2010-11-09

    申请号:US12351843

    申请日:2009-01-11

    IPC分类号: G02B6/00 G02B6/34

    摘要: In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD(bias) having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.

    摘要翻译: 在用于在光学系统中提供色​​散补偿的方法和系统中,耦合到光学系统中的至少一个通路,其中连接有可调谐线性调频光纤布拉格光栅,每个这样的光栅提供相应的可调量的色散。 对于每个这样的光栅,至少一个相应的DGD元件连接到相应的通路中。 在给定路径中的所有这些相应的DGD元件的集合引入了具有绝对值的偏差差分群延迟DGD(偏置),对于光栅的至少一个调谐值,其基本上等于由光栅引入的差分群延迟。

    Multi-core fiber grating sensor
    7.
    发明授权
    Multi-core fiber grating sensor 有权
    多芯光纤光栅传感器

    公开(公告)号:US08123400B2

    公开(公告)日:2012-02-28

    申请号:US12372495

    申请日:2009-02-17

    IPC分类号: G01D5/353 G01K11/32

    摘要: A twin core fiber for sensor applications is developed. It is particularly useful in de-coupling the strain and temperature and thus obtaining both measurement parameters at the same time and location. It is also particularly useful for measuring the temperature in a high humidity environment. The twin core fiber has two cores and each of the cores having a different dopant regime. Also, each of the cores includes a grating having substantially the same grating period.

    摘要翻译: 开发了用于传感器应用的双芯光纤。 它在应变和温度的去耦合中是特别有用的,因此在同一时间和位置获得两个测量参数。 它也特别适用于在高湿度环境下测量温度。 双芯光纤具有两个芯,并且每个芯具有不同的掺杂剂状态。 此外,每个芯包括具有基本上相同的光栅周期的光栅。

    Temperature compensating device for fiber gratings and a package therefor
    8.
    发明授权
    Temperature compensating device for fiber gratings and a package therefor 有权
    光纤光栅温度补偿装置及其封装

    公开(公告)号:US6144789A

    公开(公告)日:2000-11-07

    申请号:US318011

    申请日:1999-05-25

    IPC分类号: G02B6/02 G02B6/34

    CPC分类号: G02B6/0218

    摘要: A temperature compensating device for optical fiber gratings includes first and second expansion members having different coefficients of thermal expansion. The expansion members are elongated in a direction parallel to the fiber grating and levers are secured to both ends of the expansion members. Each lever has a first end flexibly secured to a respective end of the first expansion member and a middle portion flexibly secured to a respective end of the second expansion member. The other end of each lever is secured to a respective end of the fiber grating. The expansion members, the levers and the fiber grating all lie substantially in a single plane. There is also disclosed a package for holding four of the temperature compensating devices in two rows of two devices each, with their fiber gratings adjacent each other so that when viewed in a plane orthogonally to the longitudinal axes of the fiber gratings, the fiber gratings are each at a respective corner of a rectangle.

    摘要翻译: 用于光纤光栅的温度补偿装置包括具有不同热膨胀系数的第一和第二扩展构件。 膨胀构件在与纤维光栅平行的方向上伸长,杠杆固定在膨胀构件的两端。 每个杠杆具有柔性地固定到第一膨胀构件的相应端部的第一端和柔性地固定到第二膨胀构件的相应端部的中间部分。 每个杠杆的另一端固定到光纤光栅的相应端。 扩展构件,杠杆和光纤光栅都基本上位于单个平面中。 还公开了一种用于将两个温度补偿装置中的四个温度补偿装置保持在两排两个装置中的包装,其中它们的光纤光栅彼此相邻,使得当在与光纤光栅的纵轴垂直的平面中观察时,光纤光栅是 每个都在矩形的相应角落。

    Tunable dispersion compensator with minimum differential group delay
    10.
    发明授权
    Tunable dispersion compensator with minimum differential group delay 有权
    具有最小差分群延迟的可调谐色散补偿器

    公开(公告)号:US08380019B2

    公开(公告)日:2013-02-19

    申请号:US12941424

    申请日:2010-11-08

    IPC分类号: G02B6/00 G02B6/34

    摘要: In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD(bias) having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.

    摘要翻译: 在用于在光学系统中提供色​​散补偿的方法和系统中,耦合到光学系统中的至少一个通路,其中连接有可调谐线性调频光纤布拉格光栅,每个这样的光栅提供相应的可调量的色散。 对于每个这样的光栅,至少一个相应的DGD元件连接到相应的通路中。 在给定路径中的所有这些相应的DGD元件的集合引入了具有绝对值的偏差差分群延迟DGD(偏置),对于光栅的至少一个调谐值,其基本上等于由光栅引入的差分群延迟。