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    Dual stage optical device with low polarization mode dispersion
    1.
    发明授权
    Dual stage optical device with low polarization mode dispersion 失效
    具有低偏振模色散的双级光器件

    公开(公告)号：US5566259A

    公开(公告)日：1996-10-15

    申请号：US354706

    申请日：1994-12-13

    申请人： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

    发明人： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

    IPC分类号： G02B6/26 ,  G02B6/34 ,  G02F1/09 ,  G02B6/27

    CPC分类号： G02F1/093 ,  G02B6/2746 ,  G02B6/278

    摘要： The present invention provides for a two-stage optical isolator with reduced polarization mode dispersion. Each stage has two birefringent polarizers separated by a Faraday rotator. The polarizers in each stage are oriented with respect to each other to operate conventionally as an optical isolator for light in a backward direction. However, the polarizers in each stage are oriented with respect to the polarizers in the other stage so that a polarization mode along one direction, say, the ordinary direction, of light in the first stage travelling toward the second stage is aligned along the opposite, extraordinary, direction in the second stage and vice versa. In this manner the component of any polarization travels the same optical distance through the optical isolator to substantially reduce polarization mode dispersion.

    摘要翻译： 本发明提供具有减小的偏振模色散的两级光隔离器。 每个阶段都有两个由法拉第旋转器分离的双折射偏振器。 每个阶段的偏振器相对于彼此定向，作为用于在向后方向上的光的光学隔离器传统地操作。 然而，各级的偏振器相对于其他级的偏振片取向，使得朝向第二级行进的第一级中的一个方向（例如普通方向）的偏振模态沿着相反方向排列， 非凡，第二阶段的方向，反之亦然。 以这种方式，任何偏振的分量通过光隔离器传播相同的光学距离，以显着降低偏振模色散。

    Integrable fiberoptic coupler and resulting devices and systems
    2.
    发明授权
    Integrable fiberoptic coupler and resulting devices and systems 有权
    可集成的光纤耦合器和所产生的器件和系统

    公开(公告)号：US06198858B1

    公开(公告)日：2001-03-06

    申请号：US09467940

    申请日：1999-12-21

    申请人： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

    发明人： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

    IPC分类号： G02B626

    CPC分类号： G02B6/2746 ,  G02B6/2848 ,  G02B6/29311 ,  G02B6/29362 ,  G02B6/2937 ,  G02B6/2938 ,  G02B6/327 ,  G02B6/4246 ,  H04J14/02 ,  Y10S372/703

    摘要： A fiberoptic coupler capable of many functions is presented. The basic fiberoptic coupler has a first sleeve, a second sleeve, a first collimating GRIN or conventional lens, and a second collimating GRIN or conventional lens. The first sleeve holds end sections of two or more input optical fibers along the longitudinal axis of the sleeve. The second sleeve holds an end section of at least one output optical fiber. The end face of the second sleeve faces the first sleeve end face. The first collimating GRIN or conventional lens in front of the first sleeve end face collimates light signals from the input optical fibers and the second collimating GRIN or conventional lens in front of the second sleeve end face focusses light signals from at least one of the input optical fibers into the single output fiber, or at least one of the output optical fibers. With only one output fiber the coupler operates as a combiner. If more than one output fiber is held by the second sleeve, the input and output fibers can be arranged so that a light signal from one input fiber is sent to one output fiber. For added functionality, optical elements, such as isolators and wavelength-dependent filters, ca be inserted between the first and second collimating lenses.

    摘要翻译： 提出了一种具有很多功能的光纤耦合器。 基本光纤耦合器具有第​​一套筒，第二套筒，第一准直GRIN或常规透镜以及第二准直GRIN或常规透镜。 第一套筒沿着套筒的纵轴保持两个或更多个输入光纤的端部。 第二套筒保持至少一根输出光纤的端部。 第二套筒的端面面向第一套筒端面。 在第一套筒端面前面的第一准直GRIN或常规透镜准直来自输入光纤的光信号，并且第二套筒端面前面的第二准直GRIN或常规透镜聚焦来自至少一个输入光学器件的光信号 纤维进入单个输出光纤，或至少一个输出光纤。 只有一个输出光纤，耦合器作为组合器工作。 如果多个输出光纤被第二套筒保持，则输入和输出光纤可被布置成使得来自一个输入光纤的光信号被发送到一个输出光纤。 为了增加功能，可以在第一和第二准直透镜之间插入诸如隔离器和波长依赖滤光器之类的光学元件。

    Integrable fiberoptic coupler and resulting devices and systems
    4.
    发明授权
    Integrable fiberoptic coupler and resulting devices and systems 失效
    可集成的光纤耦合器和所产生的器件和系统

    公开(公告)号：US5889904A

    公开(公告)日：1999-03-30

    申请号：US797375

    申请日：1997-02-07

    申请人： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

    发明人： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

    IPC分类号： G02B6/32 ,  G02B6/00 ,  G02B6/26 ,  G02B6/28 ,  G02B6/293 ,  G02B6/34 ,  G02B6/42 ,  H04B10/02 ,  H04J14/00 ,  H04J14/02

    CPC分类号： G02B6/2746 ,  G02B6/2848 ,  G02B6/29311 ,  G02B6/29362 ,  G02B6/2937 ,  G02B6/2938 ,  G02B6/4246 ,  H04J14/02 ,  G02B6/327 ,  Y10S372/703

    摘要： A fiberoptic coupler capable of many functions is presented. The basic fiberoptic coupler has a first sleeve, a second sleeve, a first collimating GRIN or conventional lens, and a second collimating GRIN or conventional lens. The first sleeve holds end sections of two or more input optical fibers along the longitudinal axis of the sleeve. The second sleeve holds an end section of at least one output optical fiber. The end face of the second sleeve faces the first sleeve end face. The first collimating GRIN or conventional lens in front of the first sleeve end face collimates light signals from the input optical fibers and the second collimating GRIN or conventional lens in front of the second sleeve end face focusses light signals from at least one of the input optical fibers into the single output fiber, or at least one of the output optical fibers. With only one output fiber the coupler operates as a combiner. If more than one output fiber is held by the second sleeve, the input and output fibers can be arranged so that a light signal from one input fiber is sent to one output fiber. For added functionality, optical elements, such as isolators and wavelength-dependent filters, can be inserted between the first and second collimating lenses.

    摘要翻译： 提出了一种具有很多功能的光纤耦合器。 基本光纤耦合器具有第​​一套筒，第二套筒，第一准直GRIN或常规透镜以及第二准直GRIN或常规透镜。 第一套筒沿着套筒的纵轴保持两个或更多个输入光纤的端部。 第二套筒保持至少一根输出光纤的端部。 第二套筒的端面面向第一套筒端面。 在第一套筒端面前面的第一准直GRIN或常规透镜准直来自输入光纤的光信号，并且第二套筒端面前面的第二准直GRIN或常规透镜聚焦来自至少一个输入光学器件的光信号 纤维进入单个输出光纤，或至少一个输出光纤。 只有一个输出光纤，耦合器作为组合器工作。 如果多个输出光纤被第二套筒保持，则输入和输出光纤可被布置成使得来自一个输入光纤的光信号被发送到一个输出光纤。 为了增加功能，可以在第一和第二准直透镜之间插入诸如隔离器和波长依赖滤光器之类的光学元件。

    Optical isolator with low polarization mode dispersion
    5.
    发明授权
    Optical isolator with low polarization mode dispersion 失效
    具有低偏振模色散的光隔离器

    公开(公告)号：US5557692A

    公开(公告)日：1996-09-17

    申请号：US548820

    申请日：1995-10-26

    申请人： Jing-Jong Pan ,  Ming Shih

    发明人： Jing-Jong Pan ,  Ming Shih

    IPC分类号： G02B5/30 ,  G02B6/26 ,  G02B6/35 ,  G02B27/28 ,  G02F1/01 ,  G02F1/09 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/13363 ,  G02F1/313

    CPC分类号： G02B5/3083 ,  G02B27/28 ,  G02B6/2746 ,  G02F1/093 ,  G02F1/1326 ,  G02B6/3552 ,  G02B6/3592 ,  G02B6/3594 ,  G02F1/13363 ,  G02F2203/48 ,  Y10S372/703

    摘要： The present invention provides for a compensating element in the form of a birefringent plate in an optical isolator which uses a first GRIN lens to collimate the light signal from an input optical fiber, a first birefringent polarizer wedge, an optical Faraday rotator, a second birefringent polarizer wedge, and a second GRIN lens to recollimate the light signal to an output optical fiber. Polarization mode dispersion through said optical isolator is substantially reduced by arranging the fast optical axis of the plate to be perpendicular to the fast optical axis of the polarizer on the same side of the Faraday rotator as the plate and selecting the thickness of the plate in a predetermined manner. The present invention also allows for minimization of "walk-off", which also contributes to some polarization mode dispersion through the isolator.

    摘要翻译： 本发明提供一种光隔离器中双折射板形式的补偿元件，其使用第一GRIN透镜来校准来自输入光纤的光信号，第一双折射偏振片，光法拉第转子，第二双折射 偏振片和第二GRIN透镜，以将光信号重新聚光到输出光纤。 通过将板的快速光轴布置在与板的法拉第旋转器的同一侧上的偏振器的快速光轴上，并且选择板的厚度，从而大大减少了通过所述光隔离器的偏振模色散 预先确定的方式。 本发明还允许“走走”最小化，这也有助于通过隔离器的一些偏振模式色散。

    Optical fiber end for application in an optical isolator and a method of manufacture thereof
    6.
    发明授权
    Optical fiber end for application in an optical isolator and a method of manufacture thereof 失效
    用于光隔离器的光纤端及其制造方法

    公开(公告)号：US5546486A

    公开(公告)日：1996-08-13

    申请号：US205919

    申请日：1994-03-03

    申请人： Ming Shih ,  Jingyu Xu ,  Weng-Herng Su ,  Jing-Jong Pan

    发明人： Ming Shih ,  Jingyu Xu ,  Weng-Herng Su ,  Jing-Jong Pan

    IPC分类号： G02B6/24 ,  G02B6/26 ,  G02B6/38 ,  G02B6/25

    CPC分类号： G02B6/2746 ,  G02B6/241 ,  G02B6/3818

    摘要： An optical fiber having an improved input fiber end for an optical isolator. The end of the fiber has a flat end surface substantially perpendicular to the longitudinal axis of the fiber. An optical barrier layer, formed by a layer of chromium and a layer of gold, covers the end surface of the fiber with an aperture exposing the core and covering the cladding of the fiber. Light transmission into the end is substantially reduced to increase the reflection loss of the optical isolator.

    摘要翻译： 一种具有用于光隔离器的改进的输入光纤端的光纤。 纤维的端部具有基本垂直于纤维的纵向轴线的平坦端面。 由铬层和金层形成的光学阻挡层用光罩覆盖纤维的端面，露出芯并覆盖纤维的包层。 光传输到端部被大大减少以增加光隔离器的反射损耗。

    1.times.N and N.times.N fiber optic couplers
    7.
    发明授权
    1.times.N and N.times.N fiber optic couplers 失效
    1xN和NxN光纤耦合器

    公开(公告)号：US5764830A

    公开(公告)日：1998-06-09

    申请号：US746604

    申请日：1996-11-13

    申请人： Jing-Jong Pan ,  Ming Shih ,  Weiti Wu ,  Yu-Li Ko ,  Donna S. Yu

    发明人： Jing-Jong Pan ,  Ming Shih ,  Weiti Wu ,  Yu-Li Ko ,  Donna S. Yu

    IPC分类号： G02B6/287 ,  G02B6/28 ,  G02B6/26 ,  G02B6/42

    CPC分类号： G02B6/2856 ,  G02B2006/2865 ,  G02B6/3636

    摘要： The present invention provides fiber optic couplers for use with at least three optic fibers. The optic fibers arranged in a linear array, that is, the optic fibers are coupled side by side. The fibers along either end of the linear-array are coupled only to a single fiber, while the remaining fibers are generally coupled between only two adjacent fibers. Generally, at least one of the fibers has a propagation constant different than the other fibers. Such variations in the propagation constant are used to vary the coupling coefficients among the fibers of the linear-array, thereby providing a repeatable mechanism, to vary coupled power ratios among the fibers of the coupler. Theoretical calculations and empirical experience have shown that varying the propagation constant of fibers among a linear-array, generally by pre-pulling the fibers by varying amounts, allows repeatable manufacturing of 1.times.3, 3.times.3, 1.times.4, 4.times.4, 1.times.N and even N.times.N fiber couplers having even coupled power ratios.

    摘要翻译： 本发明提供了用于至少三个光纤的光纤耦合器。 布置成线性阵列的光纤，即光纤并排耦合。 沿着线性阵列的任一端的纤维仅耦合到单个纤维，而剩余的纤维通常仅在两个相邻纤维之间耦合。 通常，纤维中的至少一种具有与其它纤维不同的传播常数。 传播常数的这种变化用于改变线阵列的光纤之间的耦合系数，从而提供可重复的机构，以改变耦合器的光纤之间的耦合功率比。 理论计算和经验经验表明，通常通过以不同的量预拉伸纤维来改变线性阵列中的纤维的传播常数，允许重复制造1x3,3x3,1x4,4x4,1xN和甚至NxN光纤耦合器，其具有 偶耦合功率比。

    Dual stage optical device with low polarization mode dispersion and wavelength insensitivity
    9.
    发明授权
    Dual stage optical device with low polarization mode dispersion and wavelength insensitivity 失效
    具有低偏振模色散和波长不敏感性的双级光器件

    公开(公告)号：US5581640A

    公开(公告)日：1996-12-03

    申请号：US421594

    申请日：1995-04-12

    申请人： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

    发明人： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

    IPC分类号： G02B6/26 ,  G02B6/34 ,  G02F1/09 ,  G02B6/27

    CPC分类号： G02F1/093 ,  G02B6/2746 ,  G02B6/278

    摘要： The present invention provides for a two-stage optical isolator with reduced polarization mode dispersion. Each stage has two birefringent polarizers separated by a Faraday rotator. The polarizers in each stage are oriented with respect to each other to operate conventionally as an optical isolator for light in a backward direction. However, the polarizers in each stage are oriented with respect to the polarizers in the other stage so that a polarization mode along one direction, say, the ordinary direction, of light in the first stage travelling toward the second stage is aligned along the opposite, extraordinary, direction in the second stage and vice versa. In this manner the component of any polarization travels the same optical distance through the optical isolator to substantially reduce polarization mode dispersion. The birefringent polarizers and Faraday rotators of multiple stages can also be fitted into a single magnet to substantially reduce the sensitivity of the optical isolator to changes in wavelength.

    摘要翻译： 本发明提供具有减小的偏振模色散的两级光隔离器。 每个阶段都有两个由法拉第旋转器分离的双折射偏振器。 每个阶段的偏振器相对于彼此定向，作为用于在向后方向上的光的光学隔离器传统地操作。 然而，各级的偏振器相对于其他级的偏振片取向，使得朝向第二级行进的第一级中的一个方向（例如普通方向）的偏振模态沿着相反方向排列， 非凡，第二阶段的方向，反之亦然。 以这种方式，任何偏振的分量通过光隔离器传播相同的光学距离，以显着降低偏振模色散。 多级的双折射偏振器和法拉第旋转器也可以装配到单个磁体中，以显着降低光隔离器对波长变化的灵敏度。

    Torch for manufacture of optical fiber couplers and method of manufacture
    10.
    发明授权
    Torch for manufacture of optical fiber couplers and method of manufacture 失效
    用于制造光纤耦合器的手电筒及其制造方法

    公开(公告)号：US5445319A

    公开(公告)日：1995-08-29

    申请号：US004041

    申请日：1993-01-15

    申请人： Jing-Jong Pan ,  Ming Shih ,  Zhong M. Mao ,  Frank Y. F. Liang ,  Kung Shih

    发明人： Jing-Jong Pan ,  Ming Shih ,  Zhong M. Mao ,  Frank Y. F. Liang ,  Kung Shih

    IPC分类号： C03B37/15 ,  F23D14/52 ,  G02B6/28 ,  G02B6/26

    CPC分类号： G02B6/2835 ,  C03B37/15 ,  F23D14/52

    摘要： A torch specifically adapted for the manufacture of optical fiber couplers is provided. The torch has a rod and nozzle of, preferably machinable, ceramic. The rod has an inlet for connection to a gas supply source, an outlet, and a gas channel connecting the inlet to the outlet. The nozzle has an inlet for receiving gas from the rod outlet, and an enlarged outlet connected to the nozzle inlet for discharging gas for ignition. The shapes and dimensions of the parts of the torch can be modified for the specific manufacturing requirements for an optical fiber coupler. During the manufacture of optical fiber couplers, the torch can be maintained in an ignited state so that the fusing of optical fibers can be performed uniformly and reliably.

    摘要翻译： 提供专门用于制造光纤耦合器的手电筒。 手电筒具有优选可机加工的陶瓷棒和喷嘴。 杆具有用于连接到气体供应源，出口和将入口连接到出口的气体通道的入口。 喷嘴具有用于接收来自杆出口的气体的入口和连接到喷嘴入口的用于排放用于点火的气体的扩大出口。 对于光纤耦合器的特定制造要求，可以修改焊炬部件的形状和尺寸。 在制造光纤耦合器期间，可以将焊炬保持在点火状态，使得光纤的熔合可以均匀可靠地进行。