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    MOLDING COMPOSITE AND METHOD OF MAKING MOLDED PART
    2.
    发明申请
    MOLDING COMPOSITE AND METHOD OF MAKING MOLDED PART 审中-公开

    公开(公告)号：US20180093917A1

    公开(公告)日：2018-04-05

    申请号：US15283673

    申请日：2016-10-03

    Applicant: Raytheon Company

    Inventor： Michael Ushinsky ,  Sunder S. Rajan ,  Scott T. Turner ,  Isaac C. Chen

    IPC: C03C8/14 ,  B28B3/00

    CPC classification number: C03C8/14 ,  B28B3/00 ,  C01P2006/40 ,  C03C8/00 ,  C09C1/00 ,  C09C1/0009

    Abstract: A molding composite includes mica flakes and a eutectic glaze. The composite allows making of lead-free parts for use in a variety of situations, such as electrical insulators for supporting electrically-conductive parts, such as electrodes, for electrical devices. The molded composite material can be used mold around such electrically-conductive parts, supporting them and/or providing hermetic seals around the parts. Other possible uses include substrates for electronic circuits, and housings for parts, such as electro-optical parts. The molding composite is heated under elevated pressure to liquefy the eutectic glaze, causing it to coat the mica flakes. After the composite is put into a desired shape it is solidify, for example by compressing the molding composite at a constant temperature until the eutectic glaze solidifies, followed by cooling of the molding composite.

    THERMAL MANAGEMENT FOR HIGH-POWER OPTICAL FIBERS
    3.
    发明申请
    THERMAL MANAGEMENT FOR HIGH-POWER OPTICAL FIBERS 有权
    大功率光纤的热管理

    公开(公告)号：US20150331209A1

    公开(公告)日：2015-11-19

    申请号：US14133264

    申请日：2013-12-18

    Applicant: Raytheon Company

    Inventor： Joseph L. Pikulski ,  Michael Ushinsky ,  Friedrich P. Strohkendl ,  Carl W. Townsend

    IPC: G02B6/42 ,  C25D7/06 ,  C25D5/02 ,  G02B6/36 ,  H01S3/04

    CPC classification number: G02B6/4272 ,  C25D5/02 ,  C25D7/0607 ,  G02B6/3608 ,  G02B6/3612 ,  G02B6/3636 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/06704

    Abstract: A method includes obtaining a substrate having at least one exposed metal surface. The method also includes electro-depositing metal onto the at least one exposed metal surface of the substrate and around at least a portion of an optical fiber to secure the optical fiber to the substrate. The substrate and the electro-deposited metal are configured to remove heat from the optical fiber. The method could further include electro-depositing metal around a sacrificial material and removing the sacrificial material to form at least one cooling channel through the electro-deposited metal. The optical fiber could include a polymer coating, where a portion of the polymer coating is removed at an end of the optical fiber. The substrate and the electro-deposited metal could be faceted at an input of the optical fiber and at an output of the optical fiber. The optical fiber could have a coiled arrangement on the substrate.

    Abstract translation: 一种方法包括获得具有至少一个暴露的金属表面的基底。 该方法还包括将金属电沉积到衬底的至少一个暴露的金属表面上并且围绕光纤的至少一部分，以将光纤固定到衬底。 衬底和电沉积金属构造成从光纤中去除热量。 该方法还可以包括在牺牲材料周围电沉积金属并去除牺牲材料以形成通过电沉积金属的至少一个冷却通道。 光纤可以包括聚合物涂层，其中聚合物涂层的一部分在光纤端部被去除。 基板和电沉积金属可以在光纤的输入端和光纤的输出端面刻面。 光纤可以在衬底上具有盘绕的布置。

    Fast axis thermal lens compensation for a planar amplifier structure
    4.
    发明授权
    Fast axis thermal lens compensation for a planar amplifier structure 有权

    公开(公告)号：US11133639B2

    公开(公告)日：2021-09-28

    申请号：US16043429

    申请日：2018-07-24

    Applicant: Raytheon Company

    Inventor： Friedrich Strohkendl ,  Makan Mohageg ,  Michael Ushinsky

    IPC: H01S3/0941 ,  G02B6/02 ,  H01S3/042 ,  H01S3/08

    Abstract: Systems and methods described herein provide a thermally compensated waveguide structure having a thermal index profile configured to correct thermal aberrations caused by temperature gradients in a fast axis direction and/or correct other forms of distortions in an output beam generated by the waveguide structure. The waveguide structure includes a core region, one or more cladding, and one or more heat sinks. A geometry of these portions with respect to each other can provide a cold refractive index profile such that a cold refractive index value of a portion of the core region is less than a cold refractive index value of at least one of the one or more cladding regions. Responsive to thermal compensation, the cold refractive index profile is modified, through addition of a thermal index profile, to form a hot index profile having attributes including good overlap of the fundamental mode with the gain profile and mode clean-up through gain discrimination against higher order modes.

    FAST AXIS THERMAL LENS COMPENSATION FOR A PLANAR AMPLIFIER STRUCTURE
    5.
    发明申请
    FAST AXIS THERMAL LENS COMPENSATION FOR A PLANAR AMPLIFIER STRUCTURE 审中-公开

    公开(公告)号：US20200036153A1

    公开(公告)日：2020-01-30

    申请号：US16043429

    申请日：2018-07-24

    Applicant: Raytheon Company

    Inventor： Friedrich Strohkendl ,  Makan Mohageg ,  Michael Ushinsky

    IPC: H01S3/0941 ,  H01S3/08 ,  H01S3/042 ,  G02B6/02

    Abstract: Systems and methods described herein provide a thermally compensated waveguide structure having a thermal index profile configured to correct thermal aberrations caused by temperature gradients in a fast axis direction and/or correct other forms of distortions in an output beam generated by the waveguide structure. The waveguide structure includes a core region, one or more cladding, and one or more heat sinks. A geometry of these portions with respect to each other can provide a cold refractive index profile such that a cold refractive index value of a portion of the core region is less than a cold refractive index value of at least one of the one or more cladding regions. Responsive to thermal compensation, the cold refractive index profile is modified, through addition of a thermal index profile, to form a hot index profile having attributes including good overlap of the fundamental mode with the gain profile and mode clean-up through gain discrimination against higher order modes.

    LASER SYSTEM WITH MECHANICALLY-ROBUST MONOLITHIC FUSED PLANAR WAVEGUIDE (PWG) STRUCTURE
    7.
    发明申请
    LASER SYSTEM WITH MECHANICALLY-ROBUST MONOLITHIC FUSED PLANAR WAVEGUIDE (PWG) STRUCTURE 审中-公开

    公开(公告)号：US20190190230A1

    公开(公告)日：2019-06-20

    申请号：US15846434

    申请日：2017-12-19

    Applicant: Raytheon Company

    Inventor： Friedrich P. Strohkendl ,  Michael Ushinsky ,  Jeffrey P. Yanevich

    IPC: H01S3/23 ,  H01S3/04 ,  H01S3/063 ,  H01S3/10 ,  H01S3/17

    Abstract: An apparatus includes a PWG having a core region and a cladding layer. The amplifier is configured to receive pump light. The core region is configured to amplify an input beam using energy from the pump light to generate an amplified output beam. The apparatus also includes a cooling fluid configured to cool the core region. The cooling fluid has a lower refractive index than the core region and the cladding layer in order to support guiding of the input beam and pump light within the amplifier. The amplifier also includes first and second endcaps attached to opposite faces of the core region and cladding layer. The core region, cladding layer, and endcaps collectively form a monolithic fused structure. Each endcap has a major outer surface that is larger in area than a combined area of the faces of the core region and cladding layer to which the endcap is attached.

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