Amplitude tunable filter
    4.
    发明授权
    Amplitude tunable filter 失效
    幅度可调滤波器

    公开(公告)号:US06697541B1

    公开(公告)日:2004-02-24

    申请号:US09569647

    申请日:2000-05-12

    IPC分类号: G02F1295

    CPC分类号: G02B6/02204 G02B6/02095

    摘要: A dynamically tunable filter controls the magnitude of couplings between core and cladding modes of a waveguide by surrounding the waveguide with an overcladding having an adjustable refractive index. The coupled modes are attenuated along the core to produce the desired spectral response. The adjustment to the overcladding index is made in a range that is above the refractive index of the underlying cladding to vary amplitudes of attenuated bands of wavelengths without shifting central wavelengths of the bands.

    摘要翻译: 动态可调滤波器通过用具有可调折射率的外包围围绕波导来控制波导的芯和包层模式之间的耦合的大小。 耦合模式沿核心被衰减以产生期望的光谱响应。 对包层指数的调整在高于基底包层的折射率的范围内进行,以改变衰减的波长带的幅度,而不会移动带的中心波长。

    Thermally tunable optical devices
    5.
    发明授权
    Thermally tunable optical devices 有权
    热可调光学器件

    公开(公告)号:US06411746B1

    公开(公告)日:2002-06-25

    申请号:US09484491

    申请日:2000-01-18

    IPC分类号: G02F1035

    摘要: The present invention relates to a tunable optical device 10 that includes an optical fiber device 12 having optical properties that vary with temperature and a heater 14. The heater 14 is thermally coupled to the optical fiber device 12. The heater 14 includes a metal layer 18 and two electrical contacts 20, 22 that are electrically connected to the metal layer 18. The electrical contacts 20, 22 are spaced apart from one another along the metal layer 18. The electrical resistance of the portion of the metal layer 18 between the contacts 20, 22 varies with temperature and serves as a resistive heater. The invention also includes a controller 16 that is electrically connected to the heater 14. The controller 16 provides electrical power to the heater 14 and measures the electrical voltage across the heater 14. The controller 16 compares the measured electrical voltage to a pre-selected reference value. The controller then regulates the amount of electrical current supplied to the heater 14. By regulating the amount of electrical current supplied to the heater 14 the temperature of the heater 14 is controlled.

    摘要翻译: 本发明涉及一种可调谐光学器件10,其包括具有随温度变化的光学特性的光纤器件12和加热器14.加热器14热耦合到光纤器件12.加热器14包括金属层18 以及电连接到金属层18的两个电触点20,22.电触点20,22沿着金属层18彼此间隔开。金属层18在触点20之间的电阻 ,22随温度变化,用作电阻加热器。 本发明还包括电连接到加热器14的控制器16.控制器16向加热器14提供电力并测量加热器14两端的电压。控制器16将测得的电压与预选参考值进行比较 值。 然后,控制器调节供应给加热器14的电流量。通过调节供应给加热器14的电流量,控制加热器14的温度。

    Optical fiber component with shaped optical element and method of making same
    9.
    发明授权
    Optical fiber component with shaped optical element and method of making same 失效
    具有成形光学元件的光纤部件及其制造方法

    公开(公告)号:US06488414B1

    公开(公告)日:2002-12-03

    申请号:US09494073

    申请日:2000-01-28

    IPC分类号: G02B636

    摘要: A method of making an in situ shaped optical element on the terminal end of an optical fiber, and the resultant optical fiber component for manipulating light entering or exiting the terminal end of an optical fiber. The in situ shaped optical element is preferably an inorganic-organic hybrid sol-gel material which is adhered to the terminal end of the optical fiber and shaped in place to define an optical element or surface.

    摘要翻译: 一种在光纤的终端上制造原位成形的光学元件的方法,以及用于操纵进入或离开光纤终端的光的所得光纤部件。 原位成形的光学元件优选是无机 - 有机杂化溶胶 - 凝胶材料,其粘附到光纤的终端并成形到适当位置以限定光学元件或表面。

    Phasar athermalization using a slab waveguide
    10.
    发明授权
    Phasar athermalization using a slab waveguide 失效
    使用平板波导的相片无热化

    公开(公告)号:US06466707B1

    公开(公告)日:2002-10-15

    申请号:US09642984

    申请日:2000-08-21

    IPC分类号: G02B612

    摘要: A passive temperature-compensated integrated optical component having an array of adjacent waveguides, and a slab waveguide located within a groove at an intermediate section of the array. The waveguides have an index of refraction that increases with increasing temperature, and the slab waveguide has an index of refraction that decreases with increasing temperature. The slab waveguide compensates for a temperature-induced change in the refractive index of the waveguides to maintain a generally constant optical path difference between the adjacent waveguides over a temperature range.

    摘要翻译: 具有相邻波导阵列的无源温度补偿集成光学部件和位于阵列的中间部分的凹槽内的平板波导。 波导具有随着温度升高而增加的折射率,并且平板波导具有随温度升高而降低的折射率。 平板波导补偿波导的折射率的温度引起的变化,以便在温度范围内保持相邻波导之间的通常恒定的光程差。