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    Polarization coupler
    1.
    发明公开
    Polarization coupler 失效
    极化耦合器

    公开(公告)号：EP0404052A3

    公开(公告)日：1991-04-03

    申请号：EP90111547.7

    申请日：1990-06-19

    申请人： FUJITSU LIMITED

    发明人： Takamatsu, Hisashi ,  Naganuma, Norihisa ,  Abe, Kenichi

    IPC分类号： G02B6/34 ,  G02B27/28

    CPC分类号： G02B6/2746 ,  G02B6/274 ,  G02B6/29332 ,  G02B6/4246

    摘要： A polarization coupler in which a polarization maintaining fiber is employed and a process of producing such polarization coupler are disclosed. Where the polarization coupler is used, beams of light from two laser diodes can be introduced into a single optical fiber and light for the monitoring can be split from a main signal output. Since minimum components required to realize the function are a rotator (8), a birefringent plate 10 and two or three polarization maintaining fibers (2, 4, 6), the polarization coupler is superior in operability in production and is suitable for the miniaturization. The branching ratio of light for the monitoring can be adjusted by adjustment of the angle of rotation of light by the rotator (8).

    Polarization beam coupler adapted to produce output beam for monitoring
    2.
    发明公开
    Polarization beam coupler adapted to produce output beam for monitoring 失效
    Polarisationsstrahlkoppler zur Erzeugung eines AusgangsstrahlsfürÜberwachungszwecke。

    公开(公告)号：EP0368335A2

    公开(公告)日：1990-05-16

    申请号：EP89120884.5

    申请日：1989-11-10

    申请人： FUJITSU LIMITED

    发明人： Naganuma, Norihisa ,  Takamatsu, Hisashi ,  Abe, Kenichi

    IPC分类号： G02B27/28

    CPC分类号： G02B27/283 ,  G02B6/2713 ,  G02B6/2773

    摘要： A polarization beam coupler adapted to produce an output light beam for monitoring is disclosed. The polarization beam coupler includes a polarization beam coupling cube (22) for coupling two incident light beams having polarization planes perpendicular to each other and projecting the coupled light beams on the same optic axis (21), a beam splitting cube (24) having a beam splitting film (23) formed from a dielectric multi-layer or single-layer film for extracting a monitor beam, and a quarter-wave plate (25) interposed between the polarization beam coupling cube (22) and the beam splitting cube (24) such that incident light beams to the beam splitting cube (24) may be circularly polarized light. Due to the construction, the output level of a monitor light beam can be prevented from depending upon the polarization planes of the incident light.

    摘要翻译： 公开了适于产生用于监视的输出光束的偏振光束耦合器。 偏振光束耦合器包括偏振光束耦合立方体（22），用于耦合具有彼此垂直的偏振面的两个入射光束并将耦合的光束投射在同一光轴（21）上，分束立方体（24）具有 由用于提取监视光束的电介质多层或单层膜形成的分束膜（23）和插入在偏振光束耦合立方体（22）和分束立方体（24）之间的四分之一波片（25） ），使得到分束立方体（24）的入射光束可以是圆偏振光。 由于该结构，可以防止监视光束的输出电平取决于入射光的偏振面。

    Polarization beam coupler adapted to produce output beam for monitoring
    6.
    发明公开
    Polarization beam coupler adapted to produce output beam for monitoring 失效
    偏光束耦合器适用于生产输出光束进行监测

    公开(公告)号：EP0368335A3

    公开(公告)日：1991-09-18

    申请号：EP89120884.5

    申请日：1989-11-10

    申请人： FUJITSU LIMITED

    发明人： Naganuma, Norihisa ,  Takamatsu, Hisashi ,  Abe, Kenichi

    IPC分类号： G02B27/28

    CPC分类号： G02B27/283 ,  G02B6/2713 ,  G02B6/2773

    摘要： A polarization beam coupler adapted to produce an output light beam for monitoring is disclosed. The polarization beam coupler includes a polarization beam coupling cube (22) for coupling two incident light beams having polarization planes perpendicular to each other and projecting the coupled light beams on the same optic axis (21), a beam splitting cube (24) having a beam splitting film (23) formed from a dielectric multi-layer or single-layer film for extracting a monitor beam, and a quarter-wave plate (25) interposed between the polarization beam coupling cube (22) and the beam splitting cube (24) such that incident light beams to the beam splitting cube (24) may be circularly polarized light. Due to the construction, the output level of a monitor light beam can be prevented from depending upon the polarization planes of the incident light.

    Optical coupler
    7.
    发明公开
    Optical coupler 失效
    Optischer Koppler。

    公开(公告)号：EP0444694A2

    公开(公告)日：1991-09-04

    申请号：EP91103082.3

    申请日：1991-03-01

    申请人： FUJITSU LIMITED

    发明人： Abe, Kenichi ,  Naganuma, Norihisa ,  Takamatsu, Hisashi

    IPC分类号： G02B6/34 ,  H01S3/06 ,  H01S3/094 ,  G02B6/28 ,  G02B6/42

    CPC分类号： H01S3/094003 ,  G02B6/2817 ,  G02B6/4209 ,  H01S3/094019 ,  H01S3/09408

    摘要： An optical coupler is disclosed which couples a signal beam and a pumping beam having proximate wavelengths to each other. The optical coupler includes a first prism (43) having an included angle of 45 degrees, and a triangular prism (46) having an apex angle of 22.5 degrees and adhered to a face of the first prism (43) on which an optical wavelength multiplexing film is formed. The signal beam and the pumping beam multiplexed by the optical coupler is introduced into an Er doped fiber (53), in which the signal beam is amplified directly.

    摘要翻译： 公开了一种光耦合器，其将具有接近波长的信号光束和泵浦光束彼此耦合。 光耦合器包括具有45度夹角的第一棱镜（43）和顶角为22.5度的三角棱镜（46），并附着在第一棱镜（43）的面上，在其上具有光学波长复用 电影形成。 由光耦合器复用的信号光束和泵浦光束被引入铒掺杂光纤（53），其中信号光束被直接放大。

    Polarization coupler
    8.
    发明公开
    Polarization coupler 失效
    Polarisationserhaltender Koppler。

    公开(公告)号：EP0404052A2

    公开(公告)日：1990-12-27

    申请号：EP90111547.7

    申请日：1990-06-19

    申请人： FUJITSU LIMITED

    发明人： Takamatsu, Hisashi ,  Naganuma, Norihisa ,  Abe, Kenichi

    IPC分类号： G02B6/34 ,  G02B27/28

    CPC分类号： G02B6/2746 ,  G02B6/274 ,  G02B6/29332 ,  G02B6/4246

    摘要： A polarization coupler in which a polarization maintaining fiber is employed and a process of producing such polarization coupler are disclosed. Where the polarization coupler is used, beams of light from two laser diodes can be introduced into a single optical fiber and light for the monitoring can be split from a main signal output. Since minimum components required to realize the function are a rotator (8), a birefringent plate 10 and two or three polarization maintaining fibers (2, 4, 6), the polarization coupler is superior in operability in production and is suitable for the miniaturization. The branching ratio of light for the monitoring can be adjusted by adjustment of the angle of rotation of light by the rotator (8).

    摘要翻译： 公开了一种使用偏振保持光纤的偏振耦合器和制造这种偏振耦合器的工艺。 在使用偏振耦合器的地方，来自两个激光二极管的光束可以被引入到单个光纤中，用于监视的光可以从主信号输出分离。 由于实现功能所需的最小部件是旋转器（8），双折射板10和两个或三个偏振保持光纤（2,4,6），所以极化耦合器的制造操作性优异，适合于小型化。 用于监视的光的分支比可以通过由旋转体（8）调节光的旋转角度来调节。