Oxide-bondable solder
    102.
    发明授权
    Oxide-bondable solder 有权
    可焊接的焊料

    公开(公告)号:US06319617B1

    公开(公告)日:2001-11-20

    申请号:US09642216

    申请日:2000-08-18

    Abstract: A solder composition that bonds well to oxides and other surfaces to which solder bonding is conventionally difficult is provided. The solder is particularly useful for reliable bonding and packaging of optical components that often have oxide surfaces. The solder composition exhibits a microstructure containing a solder matrix in which is distributed fine, micron-scale islands of rare-earth-containing intermetallic particles. The existence of the islands makes the rare earth elements better available for bonding, and reduce the extent to which the rare earths are oxidized. Advantageously, the solder contains Au and/or Ag, in which the rare earth elements tend to have some solid solubility. Due to this solubility, the Au and/or Ag tend to provide some additional protection of the rare earths against oxidation, and thereby also provide accelerated dissolution of the rare earth into the molten solder.

    Abstract translation: 提供了一种很好地粘合到氧化物和其他通常难以焊接的表面的焊料组合物。 焊料对于通常具有氧化物表面的光学部件的可靠结合和封装特别有用。 焊料组合物显示出包含焊料基质的微结构,其中分布有细小的微米级的含稀土金属间化合物颗粒的岛。 岛的存在使得稀土元素更好地用于结合,并且减少稀土被氧化的程度。 有利地,焊料含有Au和/或Ag,其中稀土元素倾向于具有一些固体溶解性。 由于这种溶解度,Au和/或Ag倾向于为稀土提供一些额外的保护以防氧化,从而也提供了稀土进入熔融焊料的加速溶解。

    Optical crossconnect system comprising reconfigurable light-reflecting devices
    104.
    发明授权
    Optical crossconnect system comprising reconfigurable light-reflecting devices 有权
    光学交叉连接系统包括可重构光反射装置

    公开(公告)号:US06256430B1

    公开(公告)日:2001-07-03

    申请号:US09197800

    申请日:1998-11-23

    Abstract: In accordance with the invention, an optical switching device comprises a light-reflecting mirror containing a magnetic component coupled to a substrate. One or more programmable magnets are provided for moving the mirror by interacting with the magnetic component. The programmable magnets move the mirrors between or among selected positions and then maintain the mirror position without continuous power. Exemplary cross connects and 2×2 switches are described.

    Abstract translation: 根据本发明,一种光学开关装置包括一个包含耦合到基片的磁性部件的光反射镜。 提供一个或多个可编程磁体用于通过与磁性部件相互作用来移动反射镜。 可编程磁体在选定位置之间或之间移动镜子,然后在没有连续电源的情况下保持镜子位置。 描述了示例性交叉连接和2x2交换机。

    Method comprising removal of material from a diamond film
    105.
    发明授权
    Method comprising removal of material from a diamond film 失效
    包括从金刚石薄膜中去除材料的方法

    公开(公告)号:US06197375B1

    公开(公告)日:2001-03-06

    申请号:US08278688

    申请日:1994-07-21

    CPC classification number: C23C16/56

    Abstract: Many potential applications of CVD diamond film require the ability to remove a predetermined quantity of material from a surface of the film. We have discovered that such removal is advantageously accomplished by contacting the surface of the polycrystalline diamond film with a metal selected from Fe, Ni, Mn and Ti (preferably Fe and Mn, most preferably Mn), and maintaining the metal-contacted diamond film at a temperature in the range 600-1100° C. (preferably 800-1000° C.) without relative lateral motion between the film and the metal, for an effective time for removal of the quantity of material, exemplarily less than 100 hours. The metal can be in any appropriate form, e.g., a deposited layer, (including a patterned layer), a foil, or powder. We have also discovered that the local thermal conductivity of CVD diamond films typically increases with distance from the lower surface of an as-grown film. Thus, in applications such as heat spreading it will frequently be advantageous to remove some of the fine-grained, low thermal conductivity material adjacent to the lower surface of the as-grown CVD film. Such removal can be accomplished by means of the above-described technique.

    Abstract translation: CVD金刚石膜的许多潜在应用需要从膜的表面去除预定量的材料的能力。 我们已经发现,这种去除有利地通过使多晶金刚石膜的表面与选自Fe,Ni,Mn和Ti(优选Fe和Mn,最优选Mn)的金属接触,并将金属接触的金刚石膜保持在 温度在600-1100℃(优选800-1000℃)的范围内,而膜和金属之间没有相对的横向运动,用于去除材料量的有效时间,示例性地小于100小时。 金属可以是任何适当的形式,例如沉积层(包括图案层),箔或粉末。 我们还发现,CVD金刚石膜的局部导热率通常随着从生长膜的下表面的距离而增加。 因此,在诸如散热的应用中,通常有利的是去除与生长的CVD膜的下表面相邻的细粒度低的热导率材料。 这种去除可以通过上述技术来实现。

    Magnetically reconfigurable optical grating devices and communication
systems
    107.
    发明授权
    Magnetically reconfigurable optical grating devices and communication systems 失效
    磁可重构光栅设备和通信系统

    公开(公告)号:US6141470A

    公开(公告)日:2000-10-31

    申请号:US20206

    申请日:1998-02-06

    Abstract: The invention is a reconfigurable optical grating device using force from programmable magnets to alter the mechanical strain, preferably a tensile strain, on the gratings so as to induce a latchable change in grating periodicity using a pulse or short-duration current. It includes apparatus for limiting the maximum strain applied to the grating so that the fiber does not fracture, and it provides strain without rotation or twisting of the fiber grating. In preferred embodiment it provides control of magnetic force so as to accurately obtain a predetermined amount of strain and hence wavelength shift in the grating with a minimal amount of electrical power. The inventive structure is useful, e.g. for wavelength division multiplexed optical communication system comprising wavelength channel add/drop devices and/or dynamically gain-equalized amplifiers.

    Abstract translation: 本发明是使用来自可编程磁体的力改变光栅上的机械应变(优选拉伸应变)的可重构光栅装置,以便使用脉冲或短持续时间电流来引起光栅周期性的可锁定变化。 它包括用于限制施加到光栅的最大应变的装置,使得光纤不断裂,并且其提供应变而不会旋转或扭曲光纤光栅。 在优选实施例中,它提供磁力的控制,以便以最小的电功率精确地获得光栅中的预定量的应变和因此波长偏移。 本发明的结构是有用的,例如 用于包括波长信道分插装置和/或动态增益均衡放大器的波分复用光通信系统。

    Non-volatile MEMS micro-relays using magnetic actuators
    108.
    发明授权
    Non-volatile MEMS micro-relays using magnetic actuators 有权
    使用磁性执行器的非易失性MEMS微型继电器

    公开(公告)号:US6124650A

    公开(公告)日:2000-09-26

    申请号:US418874

    申请日:1999-10-15

    CPC classification number: H01H50/005 H02K99/20 H01H2050/007 Y10S310/06

    Abstract: An actuation device employing square-loop latchable magnetic material having a magnetization direction (polarization) capable of being changed in response to exposure to an external magnetic field is disclosed. The magnetic field is created by a conductor assembly with non-solenoid configuration. Once the magnetization direction of the material is so changed, the external magnetic field is no longer required to maintain the new magnetization direction. The latchable magnetic material is disposed on the mobile electrode of a switching device, and another magnetic material is disposed in spaced relation to the latchable magnetic material on a stationary electrode or surface. By applying an electrical current to a conductor assembly arranged proximate the latchable material, a magnetic field is created about the latchable magnetic material, to change the magnetization direction and thereby enable the attraction or repulsion of another magnetic material located on the stationary electrode. The resulting relative displacement of the mobile and stationary electrodes effects the selective connection or disconnection of electrical contacts carried on or associated with the respective electrodes of the actuation device without requiring additional power in order to maintain the switched state of the electrodes.

    Abstract translation: 公开了一种使用具有能够响应于暴露于外部磁场而变化的磁化方向(极化))的方形可闭锁磁性材料的致动装置。 磁场由具有非螺线管配置的导体组件产生。 一旦材料的磁化方向如此改变,则不再需要外部磁场来保持新的磁化方向。 可锁定磁性材料设置在开关装置的移动电极上,并且另一磁性材料以与固定电极或表面上的可锁定磁性材料隔开的关系设置。 通过对布置在可闭锁材料附近的导体组件施加电流,产生围绕可锁定磁性材料的磁场,以改变磁化方向,从而能够吸引或斥力位于固定电极上的另一磁性材料。 所产生的移动和固定电极的相对位移影响了携带在致动装置的相应电极上或与驱动装置的相应电极相关联的电触头的选择性连接或断开,而不需要额外的电力以保持电极的开关状态。

    Magnetostrictive wavelength-shifting devices and optical communication
systems comprising same
    109.
    发明授权
    Magnetostrictive wavelength-shifting devices and optical communication systems comprising same 有权
    磁致伸缩波长移位装置和包括它们的光通信系统

    公开(公告)号:US6122421A

    公开(公告)日:2000-09-19

    申请号:US159907

    申请日:1998-09-24

    CPC classification number: G02B6/022 G02F1/0134 G02F2201/307

    Abstract: A programmable and latchable device for wavelength shifting and chromatic dispersion compensating is disclosed. An optical grating such as a Bragg grating, a nonchirped grating, or a linearly or non-linearly chirped grating, is magnetostrictively strained to alter the dispersion compensator characteristics. In a preferred embodiment, a gradient magnetostrictive body is bonded along its length to the fiber grating. In yet another preferred embodiment, a magnetostrictive body is bonded onto the length of the fiber grating, and a gradient generating, programmable and latchable magnet component is placed adjacent the magnetostrictive body. The body is then latchably strained to a desired level by controlling the extent of magnetization in the magnetostrictive material and the magnet so as to induce or enhance chirping characteristics in the grating. Various optical applications using such are disclosed.

    Abstract translation: 公开了一种用于波长偏移和色散补偿的可编程和可锁定装置。 诸如布拉格光栅,非激光光栅或线性或非线性啁啾光栅的光栅被磁致伸缩应变以改变色散补偿器特性。 在优选实施例中,梯度磁致伸缩体沿着其长度被结合到光纤光栅。 在另一优选实施例中,将磁致伸缩体接合到光纤光栅的长度上,并且将梯度产生可编程和可锁定的磁体部件放置在与磁致伸缩体相邻的位置。 然后,通过控制磁致伸缩材料和磁体中的磁化程度,使主体可锁定地变形到所需的水平,以便引起或增强光栅中的啁啾特性。 公开了使用这些的各种光学应用。

    Tunable grating device and optical communication devices and systems
comprising same
    110.
    发明授权
    Tunable grating device and optical communication devices and systems comprising same 有权
    可调谐光栅装置和包含该光栅装置的光通信装置和系统

    公开(公告)号:US6055348A

    公开(公告)日:2000-04-25

    申请号:US159380

    申请日:1998-09-23

    CPC classification number: G02B6/022 G02B5/1828 G02F1/011 G02F2201/307

    Abstract: A tunable optical grating device that can be digitally and latchably tuned comprises a length of waveguide including a grating region, and a movable body and fixed substrate attached to the waveguide proximal the grating region. The body is movable from a first position to at least a second position, and in some embodiments to a plurality of positions, along the length of the waveguide to apply a mechanical strain to the grating to shift the wavelength response of the device. The movable body is latchable between the various positions along the length of the waveguide to define a latchably tunable device so that a continuous supply of power is not needed to tune the device. The digitally and latchably tunable optical grating device is useful in WDM communication systems, particularly for adding or dropping channels and for dynamically gain-equalizing optical amplifiers.

    Abstract translation: 可数字和可锁定调谐的可调光学光栅装置包括:包括光栅区域的波导长度,以及附着到光栅区域附近的波导的可移动体和固定衬底。 主体可以从第一位置移动到至少第二位置,并且在一些实施例中可沿着波导的长度移动到多个位置,以向光栅施加机械应变以移动设备的波长响应。 可移动体可沿着波导的长度在各个位置之间锁定,以限定可闩锁的可调谐装置,从而不需要连续供电来调谐装置。 数字和可锁定可调光学光栅装置在WDM通信系统中是有用的,特别是用于增加或删除信道以及用于动态增益均衡的光放大器。

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