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    Integrated optical device for measuring the refractive index of a fluid
    2.
    发明授权
    Integrated optical device for measuring the refractive index of a fluid 失效
    用于测量流体的折射率的集成光学装置

    公开(公告)号：US5073024A

    公开(公告)日：1991-12-17

    申请号：US426425

    申请日：1989-10-24

    申请人： Serge Valette ,  Stephane Renard

    发明人： Serge Valette ,  Stephane Renard

    IPC分类号： G01J9/02 ,  G01N21/45 ,  G02B6/12

    CPC分类号： G02B6/12004 ,  G01N21/45 ,  G01J2009/023 ,  G01N2201/0873

    摘要： An integrated optical device for measuring the refractive index of a fluid comprises a light guide formed on a substrate and having a guiding layer for carrying light beams, inserted between a lower layer and an upper layer having refractive indices below that of the guiding layer. The device includes an interaction measurement zone of the light guide for coming into contact with the fluid, the upper layer at the measurement zone having a thickness less than the penetration distance of the evanescent wave of the guided light beam. Outside the interaction zone, that upper layer has a thinckness greater than the penetration distance of the same evanescent beam. The device also has an interferometric optical system at least partly formed in the light guide and having a reference optical circuit and a measurement optical circuit including the measurement zone, for measuring the phase shift introduced by an effective index change of the guided mode due to the fluid.

    摘要翻译： 用于测量流体的折射率的集成光学装置包括形成在基板上并具有用于承载光束的引导层的导光体，该引导层插入在折射率低于引导层的下层和上层之间。 该装置包括用于与流体接触的光导的相互作用测量区域，测量区域的上层具有小于引导光束的ev逝波的穿透距离的厚度。 在相互作用区域之外，该上层的厚度大于同一瞬逝光束的穿透距离。 该装置还具有至少部分地形成在光导中的干涉光学系统，并且具有参考光学电路和测量光学电路，该测量光学电路包括测量区域，用于测量由于引导模式的有效指数变化导致的相移 流体。

    Integrated magneto-optical having a magnetic head set back from an optical head
    3.
    发明授权
    Integrated magneto-optical having a magnetic head set back from an optical head 失效
    具有从光头回放的磁头的集成磁光

    公开(公告)号：US5440530A

    公开(公告)日：1995-08-08

    申请号：US207207

    申请日：1994-03-08

    申请人： Jean-Marc Fedeli ,  Hubert Jouve ,  Stephane Renard ,  Serge Valette

    发明人： Jean-Marc Fedeli ,  Hubert Jouve ,  Stephane Renard ,  Serge Valette

    IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B11/00

    CPC分类号： G11B11/10536 ,  G11B11/10532 ,  Y10T29/49052

    摘要： An integrated magneto-optical read and write head having a magnetic head set back from an optical head. The integrated magneto-optical head includes an optical subassembly having optical input for receiving optical radiation and an optical output positioned in an output plane. A magnetic subassembly includes a magnetic circuit having at least one polar part PPI placed in a plane perpendicular to the output plane, the polar part PPI exhibition a magnetic pole toward a recording medium. The magnetic pole is set back relative to the output plane of the optical output to reduce the difference between the magnetic coercive field below the optical output and the magnetic pole such that a larger range of magneto-optical materials may be employed in magneto-optical heads.

    摘要翻译： 一种具有从光头回放的磁头的集成磁光读写头。 集成磁光头包括具有用于接收光辐射的光学输入和位于输出平面中的光学输出的光学子组件。 磁性组件包括具有放置在垂直于输出平面的平面中的至少一个极性部分PPI的磁路，极性部分PPI将磁极朝向记录介质展现。 磁极相对于光输出的输出平面被设置回来，以减小光输出和磁极之下的磁矫顽磁场之间的差异，使得可以在磁光头中使用更大范围的磁光材料 。

    Integrated monomode spatial optical filter and its method of embodiment
    5.
    发明授权
    Integrated monomode spatial optical filter and its method of embodiment 失效
    集成单体空间光学滤波器及其实施方式

    公开(公告)号：US5093884A

    公开(公告)日：1992-03-03

    申请号：US714288

    申请日：1991-06-12

    申请人： Pierre Gidon ,  Jean-Pierre Jadot ,  Stephane Renard ,  Serge Valette

    发明人： Pierre Gidon ,  Jean-Pierre Jadot ,  Stephane Renard ,  Serge Valette

    IPC分类号： G02B6/00 ,  G02B6/125 ,  G02B6/126 ,  G02B6/13

    CPC分类号： G02B6/125

    摘要： Integrated monomode spatial optical filter and its method of embodiment. The optical filter of the invention for isolating one first optical mode and eliminating second stray optical modes consists of an optical microguide (4) borne by a substrate (2) and having along a plane parallel to the surface (P) of the substrate at least one curved portion (6) whose radius of curvature is such that the losses in the curve of the first and second modes are respectively negligible and extremely high and two light absorbers (8, 10) disposed within a given plane on both sides of the curved portion (6).

    摘要翻译： 集成单模空间光学滤波器及其实施方式。 用于隔离一个第一光学模式并消除第二杂散光学模式的本发明的滤光器由由基板（2）承载并且沿着平行于基板的表面（P）的平面的光学微指导体（4）至少 一个弯曲部分（6），其曲率半径使得第一和第二模式的曲线中的损耗分别可忽略不计，极高，并且两个光吸收器（8,10）设置在弯曲的两侧的给定平面内 部分（6）。