Method of manufacturing an optical stripline waveguide for
non-reciprocal optical components
    91.
    发明授权
    Method of manufacturing an optical stripline waveguide for non-reciprocal optical components 失效
    制造用于不可逆光学部件的光学带状波导的方法

    公开(公告)号:US4849080A

    公开(公告)日:1989-07-18

    申请号:US051568

    申请日:1987-05-18

    CPC classification number: C30B25/06 G02B6/122 G02F1/0955

    Abstract: A method is disclosed of manufacturing an optical stripline waveguide for use in non-reciprocal optical components, in which a monocrystalline waveguide strip having a refractive index n.sub.2, which is surrounded by material with a lower refractive index n.sub.1, is provided on a monocrystalline substrate, the waveguide strip and the material surrounding it being deposited on a substrate by means of RF cathode sputtering (sputter epitaxy) in an inert gas plasma, making use of a target which contains mainly iron garnet phase, together with other phases with an almost equal sputtering rate, the crystal lattice of said substrate being locally disturbed in the surface regions where no waveguide strip is to be grown, thereby forming a lattice disorder.

    Abstract translation: 公开了一种用于制造用于非可逆光学部件的光学带状波导的方法,其中在单晶衬底上提供具有折射率n2的由折射率较低n1的材料包围的单晶波导条, 波导条和围绕它的材料通过在惰性气体等离子体中的RF阴极溅射(溅射外延)沉积在衬底上,利用主要含有铁石榴石相的靶,以及几乎相等的溅射的其它相 速率,所述衬底的晶格在不生长波导条的表面区域局部受到干扰,从而形成晶格紊乱。

    Optical glass fiber transmission lines coupled junction circulators
    92.
    发明授权
    Optical glass fiber transmission lines coupled junction circulators 失效
    光学玻璃纤维传输线耦合结循环器

    公开(公告)号:US4482202A

    公开(公告)日:1984-11-13

    申请号:US419764

    申请日:1982-09-20

    Applicant: Tsukasa Nagao

    Inventor: Tsukasa Nagao

    CPC classification number: G02B6/2746 G02F1/095 H04B10/2504

    Abstract: This invention discloses an optical circulator compatible with optical glass fiber transmission lines in optical communications in the wave length range of 1.0.about.1.7 microns. An optical circulator embodiment of the invention utilizes a magneto-optic circulator cylinder with the entry and reflective ends, at least three coupling glass-fiber transmission lines being connected to the entry end. The biasing magnetic field is applied in parallel with the common axis. This circulator embodiment of the invention possesses advantages in consisting of minimal constituents, and in being easy to make and simple to adjust.

    Abstract translation: 本发明公开了一种与光通信中的光学玻璃纤维传输线兼容的光循环器,其波长范围为1.0微米,为1.7微米。 本发明的光环行器实施例利用具有进入端和反射端的磁光循环器筒,至少三个耦合的玻璃纤维传输线连接到入口端。 偏置磁场与公共轴平行地施加。 本发明的循环器实施例具有由最小成分构成的优点,并且易于制备和简单的调整。

    Device for modulating optical radiation by a variable magnetic field
    93.
    发明授权
    Device for modulating optical radiation by a variable magnetic field 失效
    用于通过可变磁场调制光辐射的装置

    公开(公告)号:US4236782A

    公开(公告)日:1980-12-02

    申请号:US921226

    申请日:1978-06-30

    CPC classification number: G02F1/095

    Abstract: The device according to the invention comprises a wave guide formed by a thin layer of a ferrimagnetic garnet deposited onto a substrate, preferably by epitaxy, and capable of propagating first and second modes of radiated energy, means for exciting the first mode in said layer, means for inducing a magnetic field in the propagation direction to enable at least a fraction of the propagated energy to be transferred from the first mode towards the second mode, means for selectively transmitting one of the two modes situated in front of the guide, for example a metallic layer deposited onto the thin layer and means for extracting the energy of the transmitted mode.

    Abstract translation: 根据本发明的装置包括由优选通过外延沉积在衬底上的能够传播第一和第二辐射能量模式的铁磁石榴石的薄层形成的波导,用于激发所述层中的第一模式的装置, 用于在传播方向上诱导磁场以使至少一部分传播能量从第一模式转移到第二模式的装置,用于选择性地传送位于引导件前面的两种模式之一的装置,例如 沉积在薄层上的金属层和用于提取透射模式的能量的装置。

    Magneto-optical propagation mode converter
    95.
    发明授权
    Magneto-optical propagation mode converter 失效
    磁光传播模式转换器

    公开(公告)号:US3995936A

    公开(公告)日:1976-12-07

    申请号:US602009

    申请日:1975-08-05

    CPC classification number: G02F1/0955

    Abstract: A device for converting the propagation mode of radiated energy, ulitizing the Cotton-Mouton effect. It is constituted by a substrate upon which there is deposited an epitaxially produced film of yttrium-iron garnet, magnetized in a direction having at least one component normal to the direction of energy propagation, and with a thickness such that the propagation velocities of the two modes, initial and final, are identical to one another.

    Abstract translation: 用于转换辐射能量的传播模式的装置,使棉花 - 木桐效应变得脆弱。 它由一个衬底构成,在衬底上沉积外延生产的钇 - 铁石榴石膜,该膜由具有至少一个与能量传播方向正交的分量的方向磁化,厚度使得二者的传播速度 初始和最终的模式彼此相同。

    Nonreciprocal waveguide mode converter
    96.
    发明授权
    Nonreciprocal waveguide mode converter 失效
    非对称波形模式转换器

    公开(公告)号:US3830555A

    公开(公告)日:1974-08-20

    申请号:US35715773

    申请日:1973-05-04

    Applicant: WARNER J

    Inventor: WARNER J

    CPC classification number: G02F1/0955 H04B10/2581

    Abstract: An optical waveguide which provides coupling between waveguide modes dependent upon the direction of propagation. The device comprises a sandwich of an anisotropic material, a neutral material and a magneto-optic material. Such a system may be used as an isolator or circulator in integrated optical circuits.

    Optical waveguide devices using single-crystal garnet films
    97.
    发明授权
    Optical waveguide devices using single-crystal garnet films 失效
    使用单晶格栅膜的光波器件

    公开(公告)号:US3764195A

    公开(公告)日:1973-10-09

    申请号:US3764195D

    申请日:1972-02-02

    CPC classification number: G02B6/12004 G02B6/34 G02F1/095 H01F10/245 H01S3/0632

    Abstract: Thin-film optical waveguides are disclosed comprising singlecrystal rare-earth garnet films deposited on garnet substrates. Epitaxial film growth techniques, developed largely for magnetic bubble domain devices, provide films with superior optical properties either at visible or near-visible wavelengths. The thin-film optical waveguides are comprised of transparent garnet films of the general formula R3B5O12; where R can be yttrium, lanthanum, bismuth, or a rare-earth ion with an atomic number of 60 to 71 inclusive, and B an be either magnetic, i.e., iron, or nommagnetic, i.e., gallium or aluminum. The use of the former types of films can give rise to various thin-film magnetic devices suitable for integrated optical circuit arrangements. One such device which is disclosed, a thin-film magneto-optical switch and modulator, includes a light-guiding film of an iron garnet composition and a serpentine micro-circuit which is deposited on the film to carry a switching current. The device provides a continuous switching of the polarization modes of the light waves guided in the film. Similarly, by applying a microwave current to the same circuit, the guided light can be modulated.

    Abstract translation: 披露了沉积在石榴石基底上的单晶稀土石榴石薄膜的薄膜光波导。 外延膜生长技术主要用于磁性气泡域装置,在可见光或近可见光波长下提供具有优异光学性质的膜。 薄膜光波导由通式R3B5O12的透明石榴石膜构成; 其中R可以是钇,镧,铋或含有原子数为60〜71的稀土离子,B a为磁性,即铁,或非磁性,即镓或铝。 使用前一种类型的膜可以产生适合于集成光电路布置的各种薄膜磁性装置。 公开的一种这样的装置,薄膜​​磁光开关和调制器,包括铁石榴石组合物的导光膜和沉积在膜上以承载开关电流的蛇形微电路。 该装置提供在膜中引导的光波的偏振模式的连续切换。 类似地,通过对同一电路施加微波电流,可以调制导向光。

    Faraday-effect element
    98.
    发明授权
    Faraday-effect element 失效
    非常有效的元素

    公开(公告)号:US3633992A

    公开(公告)日:1972-01-11

    申请号:US3633992D

    申请日:1969-07-07

    CPC classification number: G02F1/095 C03C3/07 C03C3/102 C03C3/14 G02F1/0036

    Abstract: A novel Faraday-effect element having a refractive index highest along the axis and decreasing toward the surface is produced by immersing a thin elongated glass body containing an oxide selected from the group consisting of paramagnetic- and diamagnetic-type oxides composed of at least first cations, in a bath of salt including second cations having a smaller ration of the electronic polarizability to the third power of the ion radius than said first cations. The bath is maintained at a temperature to permit said second cations to diffuse into said glass body so that said first cations may be substituted by said second cations.

    Abstract translation: 通过将包含选自由至少第一阳离子构成的顺磁性和反磁性氧化物的氧化物的细长玻璃体浸渍,形成具有折射率沿轴线最大并朝向表面减小的新型法拉第效应元件 在包括具有比所述第一阳离子的离子半径更小的电子极化率的比例的第二阳离子的盐浴中。 将浴保持在允许所述第二阳离子扩散到所述玻璃体中的温度,使得所述第一阳离子可以被所述第二阳离子取代。

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