Polarization mode dispersion-free circulator
    2.
    发明授权
    Polarization mode dispersion-free circulator 失效
    极化模式无色环行器

    公开(公告)号:US5818981A

    公开(公告)日:1998-10-06

    申请号:US923883

    申请日:1997-09-04

    Abstract: A high performance optical circulator is formed by a polarization beam splitter and optical port assemblies. The polarization beam splitter is formed by two prisms with an interface between the prisms. The interface transmits linearly polarized light directed at the interface in directions responsive to a polarization orientation of linearly polarized light. The optical port assemblies are arranged with respect to the polarization beam splitter so that light from one port assembly is transmitted by the polarization beam splitter interface to another optical port assembly and light from this optical port assembly is transmitted by the beam splitter interface to still another optical port assembly.

    Abstract translation: 高性能的光环行器由偏振分束器和光端口组件形成。 偏振分束器由具有棱镜之间的界面的两个棱镜形成。 界面沿着响应于线偏振光的偏振取向的方向透射在界面处指向的线偏振光。 光端口组件相对于偏振分束器布置,使得来自一个端口组件的光由偏振分束器接口传输到另一光端口组件,并且来自该光端口组件的光由分束器接口传输到另一个 光端口组件

    Rare earth-doped fiber amplifier assemblies for fiberoptic networks
    3.
    发明授权
    Rare earth-doped fiber amplifier assemblies for fiberoptic networks 失效
    用于光纤网络的稀土掺杂光纤放大器组件

    公开(公告)号:US5689595A

    公开(公告)日:1997-11-18

    申请号:US587427

    申请日:1996-01-17

    Applicant: J. J. Pan

    Inventor: J. J. Pan

    CPC classification number: G02B6/2937 H01S3/06754 H01S3/06787

    Abstract: Assemblies having a first optical circulator, a pumping laser, a rare-earth doped fiber and a first coupler are described. The first coupler has a first fiber connected to the optical circulator, a second fiber connected to said pumping laser, and a third fiber connected to one end of the rare-earth doped fiber which is operated as a fiber amplifier. The coupler blocks the pumping laser light from the first fiber and reflects the light into the third fiber. The coupler further transmits the input signals from the first fiber into the third fiber. This arrangement allows the rare-earth doped fiber to amplify the input signals from the energy of the pumping laser light. By changing the elements connected to the second end of the rare-earth doped fiber, optical fiber amplifier assemblies in which the message signals are amplified by passing through the rare-earth doped fiber twice, by pumping the rare-earth doped fiber with two pumping lasers, or both, are provided for.

    Abstract translation: 描述了具有第一光循环器,泵浦激光器,稀土掺杂光纤和第一耦合器的组件。 第一耦合器具有连接到光循环器的第一光纤,连接到所述激光激光器的第二光纤,以及连接到作为光纤放大器工作的稀土掺杂光纤的一端的第三光纤。 耦合器阻挡来自第一光纤的泵浦激光并将光反射到第三光纤中。 耦合器还将输入信号从第一光纤传输到第三光纤。 这种布置允许稀土掺杂光纤从泵浦激光的能量放大输入信号。 通过改变连接到稀土掺杂光纤的第二端的元件,其中消息信号通过稀土掺杂光纤两次被放大的光纤放大器组件,通过用两个泵送泵浦稀土掺杂光纤 激光器,或两者都提供。

    Polarization mode dispersion-free circulator
    4.
    发明授权
    Polarization mode dispersion-free circulator 失效
    极化模式无色环行器

    公开(公告)号:US5682446A

    公开(公告)日:1997-10-28

    申请号:US726399

    申请日:1996-10-03

    Abstract: A high performance optical circulator is formed by a polarization beam splitter and optical port assemblies. The polarization beam splitter is formed by two prisms with an interface between the prisms. The interface transmits linearly polarized light directed at the interface in directions responsive to a polarization orientation of linearly polarized light. The optical port assemblies are arranged with respect to the polarization beam splitter so that light from one port assembly is transmitted by the polarization beam splitter interface to another optical port assembly and light from this optical port assembly is transmitted by the beam splitter interface to still another optical port assembly.

    Abstract translation: 高性能的光环行器由偏振分束器和光端口组件形成。 偏振分束器由具有棱镜之间的界面的两个棱镜形成。 界面沿着响应于线偏振光的偏振取向的方向透射在界面处指向的线偏振光。 光端口组件相对于偏振分束器布置,使得来自一个端口组件的光由偏振分束器接口传输到另一光端口组件,并且来自该光端口组件的光由分束器接口传输到另一个 光端口组件

    Polarization beam splitter
    6.
    发明授权
    Polarization beam splitter 失效
    极化分束器

    公开(公告)号:US5689367A

    公开(公告)日:1997-11-18

    申请号:US542871

    申请日:1995-10-13

    CPC classification number: G02B6/2713 G02B27/283 G02B5/3083 G02B6/2773

    Abstract: An improved polarization beam splitter formed by a collimator and two similarly shaped, birefringent crystal prisms is provided. The light from the collimator is incident upon the first face of the first birefringent crystal prism which also has second and third faces. The collimated light is incident upon the second face at an angle .phi. with respect to a line normal to the second face so that light polarized perpendicular to a plane of incidence upon the second face is reflected toward the third face and light polarized in the plane of incidence is refracted at the second face. The second birefringent crystal prism has a second face parallel to, and in close proximity with, the second face of the first birefringent prism so that light refracted at the second face of said first prism is refracted at the second face of the second prism and into the second prism. A first face of the second prism is positioned with respect to its second face so that light refracted into the second prism is refracted at the first face from the second prism cross-sectionally undistorted with respect to a cross-section of the light polarized in the plane of incidence at the second face of the first prism. This polarization beam splitter can handle high power without distorting the beam.

    Abstract translation: 提供了由准直器和两个类似形状的双折射晶体棱镜形成的改进的偏振分束器。 来自准直器的光入射到第一双折射晶体棱镜的第一面上,该第一双折射晶体棱镜也具有第二和第三面。 准直光以与第二面垂直的线成角度地入射在第二面上,使得垂直于第二面的入射平面偏振的光被朝向第三面反射,并且在 发生率在第二面折射。 第二双折射晶体棱镜具有与第一双折射棱镜的第二面平行且非常接近的第二面,使得在所述第一棱镜的第二面处折射的光在第二棱镜的第二面折射并且进入 第二棱镜。 第二棱镜的第一面相对于其第二面定位,使得折射到第二棱镜中的光在第一面处从第二棱镜折射成相对于在第二棱镜中偏振的光的截面横截面不变形 在第一棱镜的第二面处的入射面。 该偏振分束器可以处理高功率而不会使光束失真。

    Compact fiberoptic circulator with low polarization mode dispersion
    7.
    发明授权
    Compact fiberoptic circulator with low polarization mode dispersion 失效
    具有低偏振模色散的紧凑光纤循环器

    公开(公告)号:US5689593A

    公开(公告)日:1997-11-18

    申请号:US701909

    申请日:1996-09-06

    Abstract: A compact optical circulator which can be expanded into a large number of optical ports is provided. For each port, the circulator has an optical port assembly which has an end of an optical fiber, a collimator subassembly and a birefringent crystal. The collimator subassembly collimates light from the optical fiber end into a beam of collimated light and focusses a beam of collimated light to the optical fiber end in a reverse direction. The birefringent crystal is dimensioned and arranged with respect to the collimator subassembly to split the collimated light beam from the collimator subassembly into two parallel beams of light linearly polarized perpendicularly to each other, and to combine parallel beams of light linearly polarized perpendicularly to each other in the reverse direction into a beam of collimated light toward the collimator subassembly. The optical port assemblies are arranged in a linear array and a combination of polarization interfaces and planar reflecting surfaces guide the light beams between the optical port assemblies so that the circulator can be designed with as many optical ports as desired.

    Abstract translation: 提供了可扩展成大量光端口的紧凑型光循环器。 对于每个端口,循环器具有光端口组件,其具有光纤的端部,准直器子组件和双折射晶体。 准直器子组件将来自光纤端的光准直成准直光束,并将准直光束以相反的方向聚焦到光纤端。 双折射晶体相对于准直器子组件的尺寸设置和布置,以将来自准直器子组件的准直光束分成两个彼此垂直线偏振的平行光束,并且将彼此垂直线偏振的平行光线组合在一起 朝向准直器子组件的准直光束的反向。 光端口组件布置成线性阵列,并且偏振界面和平面反射表面的组合引导光端口组件之间的光束,使得循环器可以根据需要设计成具有尽可能多的光学端口。

    Polarization beam splitter
    9.
    发明授权

    公开(公告)号:US5923470A

    公开(公告)日:1999-07-13

    申请号:US843974

    申请日:1997-04-17

    CPC classification number: G02B6/2713 G02B27/283 G02B5/3083 G02B6/2773

    Abstract: An improved polarization beam splitter formed by a collimator and two similarly shaped, birefringent crystal prisms is provided. The light from the collimator is incident upon the first face of the first birefringent crystal prism which also has second and third faces. The collimated light is incident upon the second face at an angle .phi. with respect to a line normal to the second face so that light polarized perpendicular to a plane of incidence upon the second face is reflected toward the third face and light polarized in the plane of incidence is refracted at the second face. The second birefringent crystal prism has a second face parallel to, and in close proximity with, the second face of the first birefringent prism so that light refracted at the second face of said first prism is refracted at the second face of the second prism and into the second prism. A first face of the second prism is positioned with respect to its second face so that light refracted into the second prism is refracted at the first face from the second prism cross-sectionally undistorted with respect to a cross-section of the light polarized in the plane of incidence at the second face of the first prism. This polarization beam splitter can handle high power without distorting the beam.

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