公开(公告)号：US07218451B2

公开(公告)日：2007-05-15

申请号：US11051512

申请日：2005-02-04

申请人： Jerry Lee ,  Yang Sheng ,  Qunwen Leng ,  Yiqiang Li

发明人： Jerry Lee ,  Yang Sheng ,  Qunwen Leng ,  Yiqiang Li

IPC分类号： G02B27/10 ,  G02B27/14 ,  G02B27/28 ,  G02F1/03 ,  H04J14/00

CPC分类号： G02B6/2713 ,  G02B6/12007 ,  G02B6/2766 ,  G02B6/2773 ,  G02B6/29361 ,  G02B6/2938 ,  G02B6/4246

摘要： Optical multiplexers and demultiplexers are provided. In one implementation an apparatus is provided. The apparatus includes a first laser diode pair, a second laser diode pair, a polarization rotator coupled between the first and the second laser diode pairs, and an output port. The first and second laser diode pairs include a first laser diode, a polarization beam splitter, a first quarter waveplate, a filter; a second quarter waveplate, and a second laser diode. The first and second laser diode pairs are coupled to the polarization rotator at the polarization beam splitter of each laser diode pair. In one implementation the apparatus is operable to multiplex distinct light signals emitted from the first and second laser diodes. In another implementation, an apparatus is provided that is operable to demultiplex an input light beam having a plurality of distinct channels.

摘要翻译： 提供光复用器和解复用器。 在一个实现中，提供了一种装置。 该装置包括第一激光二极管对，第二激光二极管对，耦合在第一和第二激光二极管对之间的偏振旋转器和输出端口。 第一和第二激光二极管对包括第一激光二极管，偏振分束器，第一四分之一波片，滤波器; 第二个四分之一波片和第二个激光二极管。 第一和第二激光二极管对耦合到每个激光二极管对的偏振分束器处的偏振旋转器。 在一个实现中，该装置可操作以复用从第一和第二激光二极管发射的不同光信号。 在另一实施方式中，提供一种可操作地对具有多个不同通道的输入光束进行解复用的装置。

公开(公告)号：US06477289B1

公开(公告)日：2002-11-05

申请号：US09511695

申请日：2000-02-23

申请人： Yiqiang Li

发明人： Yiqiang Li

IPC分类号： G02B634

CPC分类号： G02B6/3524 ,  G02B6/29364 ,  G02B6/2937 ,  G02B6/29383 ,  G02B6/3514 ,  G02B6/3528 ,  G02B6/3554 ,  G02B6/356 ,  G02B6/3562

摘要： An optical switch using a refractive optical element (52) to direct a light beam in selected directions upon operation of the switch. In a preferred embodiment, the refractive optical element is an optical wedge having a first portion (67) that transmits a light beam in a selected direction, and a second portion (50) that transmits the light beam in another direction, when the first or second portions of the optical wedge are switched into the path of the light beam. The refractive optical element is less sensitive to misalignment than a reflective element, for example. In a further embodiment, the optical wedge is combined with wavelength-selective filters (118, 128) and other components to provide a channel DROP and/or ADD function with high isolation.

摘要翻译： 一种在开关操作时使用折射光学元件（52）来引导光束在选定方向上的光学开关。 在优选实施例中，折射光学元件是具有沿选定方向透射光束的第一部分（67）和在另一方向上透射光束的第二部分（50）的光学楔形物，当第一部分 光楔的第二部分切换到光束的路径。 例如，折射光学元件比反射元件对偏移不太敏感。 在另一实施例中，光楔与波长选择滤波器（118,128）和其它组件组合以提供具有高隔离度的沟道DROP和/或ADD功能。

公开(公告)号：US06353497B1

公开(公告)日：2002-03-05

申请号：US09518708

申请日：2000-03-03

申请人： Kevin J. Zhang ,  Michael A. Scobey ,  Yiqiang Li

发明人： Kevin J. Zhang ,  Michael A. Scobey ,  Yiqiang Li

IPC分类号： H01S0300

CPC分类号： H01S3/10023 ,  H01S3/0632 ,  H01S3/06758

摘要： An optical amplifier assembly integrating wavelength selective input and output filters. Integration of wavelength selective filters with a doped fiber optical amplifier stage provides a modular amplifier for use in wavelength division multiplexed optical communication systems. In one embodiment, a center tap provides access to the selected light signal after a first amplifier stage, allowing signal modification before returning the light signal to a second amplifier stage of the integrated amplifier. In a further embodiment, a pump interconnect is provided between the first and second amplifier stages to allow operation of both amplifier stages from a single pump light source.

摘要翻译： 集成波长选择性输入和输出滤波器的光放大器组件。 波长选择滤波器与掺杂光纤放大器级的集成提供了一种用于波分复用光通信系统的模块放大器。 在一个实施例中，中心抽头在第一放大器级之后提供对所选光信号的访问，允许在将光信号返回到集成放大器的第二放大级之前进行信号修改。 在另一实施例中，在第一和第二放大器级之间提供泵互连以允许来自单个泵浦光源的两个放大器级的操作。

公开(公告)号：US06876491B2

公开(公告)日：2005-04-05

申请号：US10039435

申请日：2002-01-03

申请人： Yiqiang Li ,  Yongjian Wang

发明人： Yiqiang Li ,  Yongjian Wang

IPC分类号： G02B6/26 ,  H01S3/067 ,  H01S3/094 ,  H01S3/10 ,  H01S3/00

CPC分类号： H01S3/06754 ,  G02B6/2746 ,  H01S3/06712 ,  H01S3/094003 ,  H01S3/10023

摘要： A method and system for providing a highly integrated hybrid component is disclosed. The method and system include providing a triple fiber collimator, a dual isolator/polarization beam deflector and a dual fiber collimator. The triple fiber collimator receives a plurality of pump signals in a first direction and outputs an optical signal in a second direction. The dual isolator/polarization beam deflector is optically coupled to the triple fiber collimator. The dual isolator/polarization beam deflector transmits the pump signals in the first direction, prevents a portion of the pump signals from traveling out of the triple-fiber collimator in the second direction, provides the optical signal in the second direction and prevents a portion of the optical signal from traveling out of the dual fiber collimator in the first direction. The dual fiber collimator receives the optical signal traveling in the second direction and outputs the pump signals traveling in the first direction. Moreover, a partial reflection plate, which reflects a portion of the optical signal to provide a signal tap, may be provided between the dual fiber collimator and the dual isolator/polarization beam deflector.

摘要翻译： 公开了一种用于提供高度集成的混合部件的方法和系统。 该方法和系统包括提供三光纤准直器，双隔离器/偏振光束偏转器和双光纤准直器。 三重光纤准直器在第一方向上接收多个泵浦信号，并沿第二方向输出光信号。 双隔离器/偏振光束偏转器光耦合到三光纤准直器。 双隔离器/偏振光束偏转器在第一方向上传输泵浦信号，防止一部分泵浦信号在第二方向上从三光纤准直仪出射，从而在第二方向上提供光信号，并防止一部分 光信号从双光纤准直仪沿第一方向行进出来。 双光纤准直器接收沿第二方向行进的光信号，并输出沿第一方向行进的泵浦信号。 此外，可以在双光纤准直器和双隔离器/偏振光束偏转器之间提供反射光信号的一部分以提供信号抽头的部分反射板。

公开(公告)号：US07039271B2

公开(公告)日：2006-05-02

申请号：US10387239

申请日：2003-03-12

申请人： Eric V. Chamness ,  Jenkin A. Richard ,  Yiqiang Li

发明人： Eric V. Chamness ,  Jenkin A. Richard ,  Yiqiang Li

IPC分类号： G02B6/28

CPC分类号： G02B6/2937 ,  G02B6/29364 ,  G02B6/29383

摘要： A low cost compact integrated 4-port single-channel OADM with improved optical isolation and low insertion loss is provided in which a 4-fiber pigtail includes I/O fibers and add/drop fibers, which are arranged on the same side of the multiplexer. A lens, filter and reflector are arranged in a double-pass configuration to route the optical signals to and from the appropriate fibers. The fibers are suitably arranged with the input and drop fibers at the corners of one diagonal and the output and add fibers at the corners of the crossing diagonal with the midpoints of the diagonals intersecting. Furthermore, a point halfway between the input and output fibers suitably lies at or near the central axis of the collimating lens.

摘要翻译： 提供了一种具有改进的光隔离和低插入损耗的低成本紧凑集成的4端口单通道OADM，其中4纤维引线包括布置在多路复用器的同一侧上的I / O光纤和分插光纤 。 透镜，滤光器和反射器以双通道配置布置以将光信号路由到适当的光纤和从适当的光纤路由。 纤维适当地布置有输入和分出纤维在一个对角线的角部处，并且输出并且在交叉对角线的拐角处添加纤维，并且对角线的中点相交。 此外，输入和输出光纤之间的一半点适当地位于准直透镜的中心轴线处或附近。

公开(公告)号：US06701040B2

公开(公告)日：2004-03-02

申请号：US10021371

申请日：2001-10-30

申请人： Yiqiang Li ,  Yongjian Wang

发明人： Yiqiang Li ,  Yongjian Wang

IPC分类号： G02B6293

CPC分类号： G02B6/2937 ,  G02B6/264 ,  G02B6/2938 ,  G02B6/32

摘要： A method and system for providing a dense wavelength division multiplexer is disclosed. The method and system include providing a dual fiber collimator, a filter and a filter holder. The dual fiber collimator includes a lens and a capillary. The capillary is for holding a plurality of fibers. The filter holder has an aperture therein. The filter is disposed between the dual fiber collimator and the filter holder. The filter has a first surface and a second surface opposite to the first surface. The first surface is covered with a filter coating. The filter is affixed to the filter holder by the second surface.

摘要翻译： 公开了一种用于提供密集波分多路复用器的方法和系统。 该方法和系统包括提供双光纤准直器，滤光器和滤光器支架。 双光纤准直器包括透镜和毛细管。 毛细管用于保持多根纤维。 过滤器保持器在其中具有孔。 过滤器设置在双光纤准直器和过滤器保持器之间。 过滤器具有与第一表面相对的第一表面和第二表面。 第一个表面覆盖有过滤器涂层。 过滤器通过第二表面固定到过滤器保持器。

公开(公告)号：US06782145B2

公开(公告)日：2004-08-24

申请号：US09832492

申请日：2001-04-11

申请人： Yiqiang Li ,  Yongjian Wang

发明人： Yiqiang Li ,  Yongjian Wang

IPC分类号： G02B627

CPC分类号： G02B6/2746 ,  G02F1/093

摘要： A method and system for providing an optical circulator is disclosed. The optical circulator includes a first port, a second port and a third port adjacent to the first port. The optical circulator also includes a first birefringent material, a first rotator pair, a polarization beam deflector, a second birefringent material, a second rotator pair and a third birefringent material. The first birefringent material is optically coupled to the first port and the third port and has a longitudinal axis, a transverse direction perpendicular to the longitudinal axis, and a first displacement direction. The polarization beam deflector changes the direction of the optical signal without introducing a walk-off in the optical signal. The first displacement direction is at a first oblique angle from the transverse direction. The third birefringent material has the longitudinal axis, the transverse direction perpendicular to the longitudinal axis, and a third displacement direction at a second oblique angle from the transverse direction.

摘要翻译： 公开了一种用于提供光循环器的方法和系统。 光循环器包括与第一端口相邻的第一端口，第二端口和第三端口。 光循环器还包括第一双折射材料，第一旋转体对，偏振光束偏转器，第二双折射材料，第二旋转器对和第三双折射材料。 第一双折射材料光耦合到第一端口和第三端口，并且具有纵向轴线，垂直于纵向轴线的横向方向和第一位移方向。 偏振光束偏转器改变光信号的方向，而不会在光信号中引入散射。 第一位移方向与横向方向成第一倾斜角。 第三双折射材料具有纵向轴线，垂直于纵向轴线的横向方向以及与横向方向成第二倾斜角度的第三位移方向。

公开(公告)号：US06707960B2

公开(公告)日：2004-03-16

申请号：US10051966

申请日：2002-01-15

申请人： Yiqiang Li ,  Yongjian Wang

发明人： Yiqiang Li ,  Yongjian Wang

IPC分类号： G02B626

CPC分类号： G02B6/3524 ,  G02B6/3528 ,  G02B6/355 ,  G02B6/3582

摘要： A method and system for providing an optical switch is described. The method and system include providing a triple fiber collimator, a beam deflector and a reflector. The triple fiber collimator is for receiving an optical signal from a first fiber and outputting the optical signal to a second fiber or a third fiber. The beam deflector has a first portion and a second portion. The beam deflector resides between the reflector and the triple fiber collimator. The optical signal travels through the first portion of the beam deflector, is reflected by the reflector and is output over the second fiber when the beam deflector is in a first position. The optical signal travels through the second portion of the beam deflector, is reflected by the reflector and is output over the third fiber when the beam deflector is in a second position.

摘要翻译： 描述了一种用于提供光开关的方法和系统。 该方法和系统包括提供三光纤准直器，光束偏转器和反射器。 三重光纤准直器用于从第一光纤接收光信号并将光信号输出到第二光纤或第三光纤。 光束偏转器具有第一部分和第二部分。 光束偏转器位于反射器和三光纤准直器之间。 光信号通过光束偏转器的第一部分，被反射器反射并且当光束偏转器处于第一位置时被输出到第二光纤上。 光信号通过光束偏转器的第二部分，被反射器反射并且当光束偏转器处于第二位置时被输出到第三光纤上。

公开(公告)号：US06366402B1

公开(公告)日：2002-04-02

申请号：US09728172

申请日：2000-12-01

申请人： Yiqiang Li

发明人： Yiqiang Li

IPC分类号： G02B530

CPC分类号： G02B6/2746 ,  G02B5/3083

摘要： A method and system for providing an optical circulator is disclosed. The optical circulator includes, a first port, a second port, a third port and means for establishing a first optical path and a second optical path, the second port is opposite to the first port, while the third port is adjacent to the first port. The first optical path is from the first port to the second port, while the second optical path from the second port to the third port. The optical path establishing means include a first and a second half wave plate, a first and a second rotator pair, and a polarization beam deflector. The first rotator pair is between the first port and the first half wave plate. The second rotator pair is between the second port and the second half wave plate. The polarization beam deflector is for altering a direction of the first optical path and the second optical path. The polarization beam deflector is located between the first rotator pair and the first half wave plate. Thus, when an optical signal is input at the first port, the optical signal travels along the first optical path to the second port. When the optical signal is input to the second port, the optical signal travels along the second optical path to the third port.

摘要翻译： 公开了一种用于提供光循环器的方法和系统。 光环行器包括第一端口，第二端口，第三端口和用于建立第一光路和第二光路的装置，第二端口与第一端口相对，而第三端口与第一端口相邻 。 第一光路从第一端口到第二端口，而第二光路从第二端口到第三端口。 光路建立装置包括第一和第二半波片，第一和第二旋转器对以及偏振光束偏转器。 第一旋转体对位于第一端口和第一半波片之间。 第二转子对在第二端口和第二半波片之间。 偏振光束偏转器用于改变第一光路和第二光路的方向。 偏振光束偏转器位于第一旋转体对和第一半波片之间。 因此，当在第一端口处输入光信号时，光信号沿着第一光路行进到第二端口。 当光信号被输入到第二端口时，光信号沿着第二光路传播到第三端口。

公开(公告)号：US20060018204A1

公开(公告)日：2006-01-26

申请号：US11051512

申请日：2005-02-04

申请人： Jerry Lee ,  Yang Sheng ,  Qunwen Leng ,  Yiqiang Li

发明人： Jerry Lee ,  Yang Sheng ,  Qunwen Leng ,  Yiqiang Li

IPC分类号： G11B11/00

CPC分类号： G02B6/2713 ,  G02B6/12007 ,  G02B6/2766 ,  G02B6/2773 ,  G02B6/29361 ,  G02B6/2938 ,  G02B6/4246

摘要： Optical multiplexers and demultiplexers are provided. In one implementation an apparatus is provided. The apparatus includes a first laser diode pair, a second laser diode pair, a polarization rotator coupled between the first and the second laser diode pairs, and an output port. The first and second laser diode pairs include a first laser diode, a polarization beam splitter, a first quarter waveplate, a filter; a second quarter waveplate, and a second laser diode. The first and second laser diode pairs are coupled to the polarization rotator at the polarization beam splitter of each laser diode pair. In one implementation the apparatus is operable to multiplex distinct light signals emitted from the first and second laser diodes. In another implementation, an apparatus is provided that is operable to demultiplex an input light beam having a plurality of distinct channels.

摘要翻译： 提供光复用器和解复用器。 在一个实现中，提供了一种装置。 该装置包括第一激光二极管对，第二激光二极管对，耦合在第一和第二激光二极管对之间的偏振旋转器和输出端口。 第一和第二激光二极管对包括第一激光二极管，偏振分束器，第一四分之一波片，滤波器; 第二个四分之一波片和第二个激光二极管。 第一和第二激光二极管对耦合到每个激光二极管对的偏振分束器处的偏振旋转器。 在一个实现中，该装置可操作以复用从第一和第二激光二极管发射的不同光信号。 在另一实施方式中，提供一种可操作地对具有多个不同通道的输入光束进行解复用的装置。