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    Internal modulation of injection lasers using acoustic waves
    1.
    发明授权
    Internal modulation of injection lasers using acoustic waves 失效
    使用声音波的注射激光器的内部调制

    公开(公告)号：US3675150A

    公开(公告)日：1972-07-04

    申请号：US3675150D

    申请日：1970-06-30

    Applicant: IBM

    Inventor： HARRIS ERIK P ,  LEAN ERIC G ,  POWELL CARL G

    IPC: H01S3/106 ,  H01S5/06 ,  H01S3/00

    CPC classification number: H01S5/0607 ,  H01S3/1068

    Abstract: An injection laser whose light output is spatially modulated by internal effects in the active region of the laser. An acoustic wave is launched into the laser and is existent only in a small area including the active region of the laser. In low acoustic frequency operation, the acoustic wave is steered over an angle theta to cause the laser light output to be steered through this angle. In high frequency operation, the frequency of the acoustic wave can be changed to steer the light output, or the acoustic wave can be steered to cause light deflection, as in the low frequency case. The acoustic wave causes phase modulation and loss modulation which results in scanning of the light output. The acoustic wave can be a surface acoustic wave, a Love wave, or a Stonley wave.

    Abstract translation: 一种注射激光器，其光输出由激光器的有源区域中的内部效应空间调制。 声波被发射到激光器中，并且仅存在于包括激光器的有源区域在内的小区域中。 在低声频率操作中，声波在角度θ上被转向，以使激光输出转过该角度。 在高频操作中，可以改变声波的频率以引导光输出，或者如在低频情况下可以引导声波引起光偏转。 声波引起相位调制和损耗调制，导致光输出的扫描。 声波可以是表面声波，爱波或斯托利波。

    MOAT-GUARDED JOSEPHSON DEVICES
    3.
    发明专利
    MOAT-GUARDED JOSEPHSON DEVICES 未知

    公开(公告)号：CA1155558A

    公开(公告)日：1983-10-18

    申请号：CA382815

    申请日：1981-07-29

    Applicant: IBM

    Inventor： CHANG WEN H ,  GHEEWALA TUSHAR R ,  HARRIS ERIK P

    IPC: H01L27/18 ,  H01L39/02 ,  H01L39/22 ,  H01L39/00

    Abstract: MOAT GUARDED JOSEPHSON DEVICES In superconductive circuitry including a super conducting ground plane, a magnetic flux trapping moat is provided which surrounds a superconductive device. The moat is preferably a cut through the superconducting ground plane which extends along a perimeter surrounding the superconducting device, the moat being continuous except for small regions where there is no cut. The small regions serve as current carrying portions to link the ground plane within the moat to the rest of the ground plane outside of the moat. The moat is a flux pinning center so that magnetic flux does not enter the ground plane region located near the superconducting device. In a Josephson circuit, the Josephson tunnel devices are especially sensitive to trapped magnetic flux in the ground plane, and the provision of a moat around each of the devices prevents flux from moving into the ground plane areas near the devices and becoming trapped therein.

    METHOD FOR FABRICATING ULTRA-NARROW METALLIC LINES
    4.
    发明专利
    METHOD FOR FABRICATING ULTRA-NARROW METALLIC LINES 未知

    公开(公告)号：CA1092727A

    公开(公告)日：1980-12-30

    申请号：CA292938

    申请日：1977-12-13

    Applicant: IBM

    Inventor： HARRIS ERIK P ,  KEYES ROBERT W

    IPC: B21C37/04 ,  C23C14/48 ,  C23F1/02 ,  C23F4/00 ,  H01L21/306 ,  H01L21/768 ,  H01L39/24

    Abstract: METHOD FOR FABRICATING ULTRA-NARROW METALLIC LINES A method for fabricating very narrow superconducting metallic lines on a substrate using ion-implantation and etching techniques. The method permits lines to be produced which are much smaller than those fabricated by conventional masking and etching techniques. It makes the fabrication of very small Josephson and other superconducting devices possible. Also since lines are formed in metals, they have high conductivity, so are useful as ordinary conductors at high temperature or when the technique is utilized with non-superconducting materials. The method includes the steps of depositing a selected metal film on a substrate, applying a photoresist or other masking pattern and exposing, etching away the exposed region, ion-implanting the edge of the resulting pattern, removing the photoresist and etching away the unimplanted portion of the metal leaving an ultra-narrow line pattern.

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