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    Coupling device for optical waveguide
    81.
    发明授权
    Coupling device for optical waveguide 失效
    光波导耦合器件

    公开(公告)号：US3905676A

    公开(公告)日：1975-09-16

    申请号：US40681073

    申请日：1973-10-16

    Applicant: MAX PLANCK GESELLSCHAFT

    Inventor： ULRICH REINHARD

    IPC: G02B6/30 ,  G02B6/34 ,  G02F1/225 ,  G02F1/295 ,  G02F1/35 ,  G02F1/377 ,  G02B5/14

    CPC classification number: G02B6/29334 ,  G02B6/29323 ,  G02B6/34 ,  G02F1/225 ,  G02F1/2955 ,  G02F1/377 ,  G02F2201/302 ,  G02F2203/22

    Abstract: An optical coupling system comprises a prism or diffraction grating coupling element in combination with a film waveguide or the like affording high selectivity and high coupling coefficient. A prism when used has a coated, partially reflective and interference inducing face arranged parallel to the film waveguide along a coupling interval wavelength of the latter. The coated face coating includes a partially transparent mirror layer and an interference film. When a grating coupling element is used, multiple interfering beams ordinarily produced are reduced to one output beam per diffraction order. Light beams may be propagated on one or both sides of the film.

    Abstract translation: 光耦合系统包括棱镜或衍射光栅耦合元件与薄膜波导等组合提供高选择性和高耦合系数。 当使用棱镜时，沿着后者的耦合间隔波长具有平行于薄膜波导布置的涂覆的部分反射和干涉诱导面。 涂覆的面涂层包括部分透明的镜面层和干涉膜。 当使用光栅耦合元件时，通常产生的多个干涉光束每衍射级减少到一个输出光束。 光束可以在膜的一侧或两侧传播。

    Leaky corrugated optical waveguide device
    82.
    发明授权
    Leaky corrugated optical waveguide device 失效
    泄漏波纹光波导器件

    公开(公告)号：US3898585A

    公开(公告)日：1975-08-05

    申请号：US43292674

    申请日：1974-01-14

    Applicant: IBM

    Inventor： HEIDRICH PAUL F ,  ZORY JR PETER STEPHEN

    IPC: G02B6/34 ,  G02B6/124 ,  G02F1/295 ,  H01S3/02 ,  H01S3/063 ,  H01S3/101 ,  H01S3/20 ,  H01S3/00

    CPC classification number: H01S3/0635 ,  G02B6/124 ,  G02F1/2955 ,  G02F2201/302 ,  H01S3/022 ,  H01S3/20

    Abstract: Diffracted leaky optical waves are coupled out of a thin film optical waveguide device having one surface which is periodically thickness-modulated or corrugated to form an optical diffraction grating. The waveguide device is constructed such that the average thickness of the waveguide in the complex refractive index of the waveguide or one of the layers surrounding the waveguide is varied when an external power source applied to the device is varied and thereby, a parameter of the leaky wave in accordance with the variable power source. In one embodiment, the waveguide is made of light amplifying material which is suitably excited to produce lasing action and cause an optical wave to propagate in the waveguide. The variable parameter in this case is the wavelength of the leaky wave, and the leaky wave is always normal to the plane of the diffraction grating. Consequently, a tunable laser is provided. In a second embodiment, no lasing occurs, but instead, an external light source is used to cause an optical wave to propagate in the waveguide. The parameter which is varied is the angle between the leaky wave and the normal to the diffraction grating, the wavelength of the leaky wave remaining constant.

    Abstract translation: 衍射泄漏的光波从具有周期性厚度调制或波纹状的一个表面的薄膜光波导器件耦合，以形成光学衍射光栅。 波导器件被构造成使得当施加到器件的外部电源变化时波导的平均厚度在波导的复合折射率或围绕波导的一个层之间变化，并且因此，泄漏的参数 按照可变电源波。 在一个实施例中，波导由光放大材料制成，其被适当地激发以产生激光作用并且使光波在波导中传播。 这种情况下的可变参数是泄漏波的波长，漏波总是垂直于衍射光栅的平面。 因此，提供可调谐激光器。 在第二实施例中，不发生激光，而是使用外部光源使光波在波导中传播。 变化的参数是漏波与衍射光栅的法线之间的角度，漏波的波长保持不变。

    LIGHT DRIVEN, INTEGRATED OPTICAL DEVICE
    88.
    发明申请
    LIGHT DRIVEN, INTEGRATED OPTICAL DEVICE 审中-公开
    光驱，集成光学器件

    公开(公告)号：WO02005017A1

    公开(公告)日：2002-01-17

    申请号：PCT/HU2001/000077

    申请日：2001-07-09

    IPC: G02B6/12 ,  G02B6/34 ,  G02F1/01 ,  G02F1/31 ,  G02F1/35 ,  G02F3/00

    CPC classification number: G02F1/0126 ,  G02F1/011 ,  G02F1/0118 ,  G02F1/31 ,  G02F3/00 ,  G02F2201/302 ,  G02F2202/02 ,  G02F2202/13 ,  G02F2202/14

    Abstract: The invention relates to fully light controllable integrated optical devices comprising a protein as a material of non linear optical property, methods for carrying out a simple logical operation using the optical devices of the invention, methods for the preparation of a fully light controllable integrated optical device comprising a protein as a material of non linear optical property, uses of the optical devices as an optically controlled optical switch or as an integrated optical logical element or as an integrated optical sensor. and complex integrated optical modules The invention can be used to the fields of laser technology, optoelectronics and integrated optics.

    Abstract translation: 本发明涉及包括作为非线性光学性质的材料的蛋白质的完全可光控制的集成光学器件，使用本发明的光学器件进行简单逻辑操作的方法，用于制备全光可控集成光学器件的方法 包括作为非线性光学性质的材料的蛋白质，光学装置用作光学控制光学开关或作为集成光学逻辑元件或集成光学传感器的用途。 和复杂的集成光学模块本发明可用于激光技术，光电子学和集成光学领域。

    TUNABLE RESONANT GRATING FILTERS
    90.
    发明公开
    TUNABLE RESONANT GRATING FILTERS 有权
    可调谐振电网滤波器

    公开(公告)号：EP1704428A1

    公开(公告)日：2006-09-27

    申请号：EP03789424.3

    申请日：2003-12-24

    Applicant: Pirelli & C. S.p.A.

    Inventor： PIETRA, Giulia ,  GORNI, Giacomo Maria

    IPC: G02B5/20 ,  H01S5/00

    CPC classification number: G02B6/12007 ,  G02B6/124 ,  G02F1/216 ,  G02F2201/302 ,  G02F2203/055 ,  G02F2203/15 ,  H01S3/08059 ,  H01S3/105 ,  H01S3/1055 ,  H01S5/12 ,  H01S5/141 ,  H01S5/142

    Abstract: The invention relates to a tunable resonant grating filter that can reflect optical radiation at a resonant wavelength, said resonant wavelength being selectively variable. The filter comprises a diffraction grating (3), a planar waveguide (4) and a light transmissive material having a selectively variable refractive index to permit tuning of the filter, said light transmissive material forming a tunable cladding layer (5) for the waveguide, preferably a liquid crystal (LC) material. The diffraction grating (3) is placed on the opposite side of the tunable layer (5) with respect to the planar waveguide (4) thereby making possible to tailor the grating structural parameters to the desired bandwidth of the filter response without significantly affecting the tunability of the filter. Within the resonant structure (1) of the present invention, the core layer, i.e., the waveguide (4), can be placed close to the tunable layer (5), either in direct contact with the tunable layer or with an interposed relatively thin intermediate layer(s) between the core and the tunable layer. Proximity of the core layer (4) to the tunable layer (5) implies that the propagation mode can significantly extend into the tunable layer (5) so that the effective refractive index of the fundamental mode in the waveguide (4) is efficiently affected by variations of the refractive index of the tunable layer (5).

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