Method of making an optical fiber collimating device
    1.
    发明授权
    Method of making an optical fiber collimating device 有权
    制造光纤准直装置的方法

    公开(公告)号:US06454465B1

    公开(公告)日:2002-09-24

    申请号:US09660641

    申请日:2000-09-13

    IPC分类号: G02B626

    摘要: A method for making an optical collimating device having three or more ports. A test light having the same wavelength as that at which the filter is designed to operate is transmitted through the input collimator. The angle of incidence is measured, and the location where the reflected beam reaches the ferrule is determined. The data dictates where the output fiber pigtail should be positioned within the ferrule to achieve the measured angle of incidence for that transmitted wavelength and the spacing between input and output pigtails based on the angle of reflection. Multiple ferrules containing two or more pigtails corresponding to a particular filter operating at a particular wavelength are segregated into separate collimator bins that are marked accordingly.

    摘要翻译: 一种用于制造具有三个或更多个端口的光学准直装置的方法。 具有与滤波器设计的波长相同的波长的测试光通过输入准直仪传输。 测量入射角,确定反射光束到达套圈的位置。 数据指示输出光纤引线应位于套圈内的位置,以实现该透射波长的测量入射角和基于反射角的输入和输出尾纤之间的间距。 包含对应于在特定波长下操作的特定过滤器的两个或更多个尾纤的多个套圈被分离成分别标记的相应的准直器箱。

    Controlled stress thermal compensation for filters
    2.
    发明授权
    Controlled stress thermal compensation for filters 有权
    过滤器受控应力热补偿

    公开(公告)号:US06304383B1

    公开(公告)日:2001-10-16

    申请号:US09398647

    申请日:1999-09-17

    IPC分类号: G02B2700

    摘要: A temperature compensated optical filter assembly including a plurality of thin films having temperature dependent indices of refraction which are deposited on a glass substrate so as to form a conventional interference filter thereon. The glass substrate is adhesively coupled to a metal holder such that the deposited thin film interference filter is interposed between the glass substrate and an adhesive layer distributed along a mounting surface of the holder. Thus, a first thermal mismatch stress is applied by the glass substrate onto an inner layer of the interference filter and a second mismatch stress is applied by the holder onto an outer layer of the interference filter, wherein the first and second mismatch stresses depend on the temperature of the filter assembly. The glass substrate, the adhesive, and the holder are preferably formed of materials having mechanical properties such that the first and second mismatch stresses compensate for the effects of the temperature dependent indices of refraction of the thin films so as to uniformly maintain the spectral performance of the filter assembly in response to a change in temperature. In one embodiment, an additional degree of freedom is obtained by electro/magneto-strictively prestressing the thin film stack during the formation thereof. In another embodiment, an active stress management system is utilized.

    摘要翻译: 一种温度补偿滤光器组件,包括具有温度依赖折射率的多个薄膜,其沉积在玻璃基板上,以在其上形成常规的干涉滤光片。 玻璃基板粘合地耦合到金属保持器,使得沉积的薄膜干涉滤光器插入在玻璃基板和沿着保持器的安装表面分布的粘合剂层之间。 因此,第一热失配应力由玻璃基板施加到干涉滤光器的内层上,并且第二不匹配应力由保持器施加到干涉滤光器的外层上,其中第一和第二失配应力取决于 过滤组件的温度。 玻璃基板,粘合剂和保持器优选地由具有机械特性的材料形成,使得第一和第二失配应力补偿薄膜的温度依赖折射率的影响,以便均匀地保持薄膜的光谱性能 过滤器组件响应于温度的变化。 在一个实施例中,通过在形成薄膜堆叠期间通过电/磁 - 严格预应力来获得附加的自由度。 在另一个实施例中,利用主动应力管理系统。

    Fiber coupler variable optical attenuator
    3.
    发明授权
    Fiber coupler variable optical attenuator 失效
    光纤耦合器可变光衰减器

    公开(公告)号:US06173106B2

    公开(公告)日:2001-01-09

    申请号:US09394558

    申请日:1999-09-10

    IPC分类号: G02B600

    CPC分类号: G02B6/266 G02B6/2835

    摘要: A fiber coupled variable optical attenuator includes an optical fiber coupler mounted through a low modulus material bushing into a protective enclosure with one end clamped and another end free. The free end of the coupler is deflected by a motorized mechanism. The mechanism includes an electric step motor, a shaft providing eccentric motion, and a support/deflection component connected with the coupler in a kinematic chain providing lateral deflection of the coupler's free end. The structural and material parameters of the kinematic chain members are established to satisfy conditions of thermal compensation for the enclosure enveloping this chain. The free end of the coupler is equipped with a sleeve having a spherical polished surface positioned in contact with the deflection component. The enclosure is equipped with a thermal-compensating device positioned in series between the enclosure and optical fibers.

    摘要翻译: 光纤耦合可变光衰减器包括通过低模量材料套管安装到保护外壳中的光纤耦合器,其一端被夹紧并且另一端自由。 耦合器的自由端由电动机构偏转。 该机构包括电动步进电动机,提供偏心运动的轴以及与耦合器连接的运动链中的支撑/偏转部件,其提供耦合器自由端的横向偏转。 建立运动链构件的结构和材料参数,以满足包围该链条的外壳的热补偿条件。 耦合器的自由端配备有具有与偏转部件接触的球形抛光表面的套筒。 外壳配有一个热补偿装置,串联连接在外壳和光纤之间。