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    Induction heated optical guide
    2.
    发明授权
    Induction heated optical guide 失效
    感应加热光学指南

    公开(公告)号：US3647277A

    公开(公告)日：1972-03-07

    申请号：US3647277D

    申请日：1969-10-30

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： KAMINOW IVAN P

    IPC: G02B6/06 ,  G02B6/44 ,  G02B5/14

    CPC classification number: G02B6/4439 ,  G02B6/06

    Abstract: The disclosed optical guiding system employs radial thermal gradients in a propagation medium which is a bulk solid dielectric having a positive temperature coefficient of index of refraction and in which the radial thermal gradient is established by inductive heating of the rod, while inherent or forced cooling of the rod exterior establishes an approximately quadratic radial variation of index of refraction.

    Abstract translation: 所公开的光引导系统在传播介质中采用径向热梯度，传播介质是具有正的折射率温度系数的体固体电介质，并且其中通过感应加热棒来确定径向热梯度，而固有或强制冷却 杆外部建立折射率的近似二次径向变化。

    Optical scanning apparatus utilizing a re-entrant laser beam
    6.
    发明授权
    Optical scanning apparatus utilizing a re-entrant laser beam 失效
    光学扫描装置利用再生激光束

    公开(公告)号：US3637929A

    公开(公告)日：1972-01-25

    申请号：US3637929D

    申请日：1968-09-30

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： KAMINOW IVAN P

    IPC: H01S3/08 ,  H01S3/101 ,  H01S3/107 ,  H04N3/02 ,  H04B9/00

    CPC classification number: H01S3/101 ,  H01S3/08 ,  H01S3/107

    Abstract: In the synchronous scanning display device disclosed, the laser active medium and means for mode-locking multiple-mode laser oscillations are disposed in a resonator adapted to provide a folded optical path yielding a large plurality of resolvable spots at a reflector of stepped transmissity and reflectivity. The intensity of the output from the resonator at each spot is selectively controlled by a video signal applied to a broad area modulator disposed just outside the stepped-reflectivity reflector. Typically, an isolator is employed to produce unidirectional propagation of the laser radiation along the folded path.

    Abstract translation: 在所公开的同步扫描显示装置中，激光活性介质和多模激光振荡模式锁定装置设置在谐振器中，该谐振器适于提供折叠光路，其在阶梯传输和反射率的反射器处产生大量可分辨的点 。 来自每个点处的谐振器的输出的强度由施加到设置在阶梯反射率反射器正下方的广域调制器的视频信号选择性地控制。 通常，使用隔离器来产生沿着折叠路径的激光辐射的单向传播。

    Raman oscillator employing rare isotope
    7.
    发明授权
    Raman oscillator employing rare isotope 失效
    拉曼振荡器采用稀有同位素

    公开(公告)号：US3590266A

    公开(公告)日：1971-06-29

    申请号：US3590266D

    申请日：1968-05-10

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： JOHNSTON WILBUR D JR ,  KAMINOW IVAN P

    IPC: H01S3/30 ,  H03F7/00

    CPC classification number: H01S3/30

    Abstract: The Raman oscillators disclosed employ Li6NbO3 to provide an oscillation threshold that is substantially lower than for the common Li7NbO3. These oscillators can be tuned by variation of environmental temperature or electric field. In one embodiment, the frequency of oscillation is selectable by choice of a ratio of a mixture of Li6NbO3 and Li7NbO3 in the oscillator.

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