公开(公告)号：US06804467B2

公开(公告)日：2004-10-12

申请号：US09823971

申请日：2001-04-03

申请人： Paul Colbourne ,  Kuochou Tai ,  Jyehong Chen ,  Kok Wai Chang

发明人： Paul Colbourne ,  Kuochou Tai ,  Jyehong Chen ,  Kok Wai Chang

IPC分类号： H04J1402

CPC分类号： G02B6/29358 ,  G02B6/29386 ,  G02B6/29394 ,  H04B10/25133

摘要： A method and device is disclosed for dispersion compensation of an optical signal having periodic dispersion within a multi-channels system. For example interleaved optical channels often exhibit dispersion having a characteristic that is repeated in adjacent channels. By providing a periodic device that allows for polarization dependent routing of an interleaved signal to allow for multiple passes of said signal through a multi-cavity GT etalon, having a free-spectral range that corresponds to the channel spacing, the dispersion in the interleaved signal can be lessened and practically obviated or balanced to a desired level. This invention provides a device and method to achieve that end.

摘要翻译： 公开了一种用于在多通道系统内具有周期性色散的光信号的色散补偿的方法和装置。 例如，交织的光信道通常表现出具有在相邻信道中重复的特征的色散。 通过提供周期性器件，其允许交错信号的偏振相关路由以允许具有对应于信道间隔的自由谱范围的多腔GT标准具的所述信号的多次通过，交织信号中的色散 可以减轻并且实际上被消除或平衡到期望的水平。 本发明提供了一种实现该目的的装置和方法。

公开(公告)号：US20100040095A1

公开(公告)日：2010-02-18

申请号：US12229043

申请日：2008-08-18

申请人： Michael M. Mielke ,  Robert G. Waarts ,  Sha Tong ,  Kok Wai Chang

发明人： Michael M. Mielke ,  Robert G. Waarts ,  Sha Tong ,  Kok Wai Chang

IPC分类号： H01S3/10

CPC分类号： H01S3/0057 ,  H01S3/06754 ,  H01S3/10046 ,  H01S3/10061 ,  H01S3/1302 ,  H01S3/2308 ,  H01S3/2383 ,  H01S2301/02

摘要： An ultra-short pulsed laser system comprises an optical combiner, optical amplifier, optical pulse compressor, and optical separator. The optical combiner is configured to combine a primary optical pulse with a secondary optical signal to generate a combined optical signal. The primary optical pulse and the secondary optical signal have a distinguishable characteristic. The optical amplifier is configured to optically amplify the combined optical signal. The optical pulse compressor is configured to compress at least the primary optical pulse contained within the optically amplified combined optical signal and output a compressed combined optical signal. The optical separator is configured to separate the compressed combined optical signal into an output primary optical pulse and an output secondary optical signal according to the distinguishable characteristic.

摘要翻译： 超短脉冲激光系统包括光学组合器，光放大器，光脉冲压缩器和光分离器。 光组合器被配置为将初级光脉冲与次光信号组合以产生组合的光信号。 主光脉冲和次光信号具有可区分的特性。 光放大器被配置为光学放大组合的光信号。 光脉冲压缩器被配置为至少压缩光放大组合光信号中包含的主光脉冲，并输出压缩的组合光信号。 光分离器被配置为根据可区分的特性将压缩的组合光信号分离成输出主光脉冲和输出次光信号。

公开(公告)号：US06317250B1

公开(公告)日：2001-11-13

申请号：US09660314

申请日：2000-09-12

申请人： Kejian Guan ,  Kok Wai Chang

发明人： Kejian Guan ,  Kok Wai Chang

IPC分类号： G02F109

CPC分类号： G02F1/093 ,  G02B6/2746

摘要： A method and apparatus for optically isolating multiple core optical fibers while at the same time substantially reducing polarization mode dispersion, is disclosed. A multiple core fiber is optically coupled to optical birefringent elements, reciprocal and non-reciprocal rotators, and through a lens assembly to a multiple core optical fiber output.

摘要翻译： 公开了一种用于光学隔离多芯光纤同时显着降低偏振模色散的方法和装置。 多芯光纤光学耦合到光学双折射元件，往复和不可逆的旋转器，并且通过透镜组件到多芯光纤输出。

公开(公告)号：US6043933A

公开(公告)日：2000-03-28

申请号：US975615

申请日：1997-11-21

申请人： Kok Wai Chang

发明人： Kok Wai Chang

IPC分类号： G02B27/28 ,  G02B5/30 ,  G02B6/34 ,  G02F1/09

CPC分类号： G02F1/093 ,  G02B5/3025 ,  Y10S359/90

摘要： A method of fabricating split optical elements includes fixing a number of optical members in a side-by-side arrangement such that abutting optical members have different optical characteristics with respect to manipulating polarization components of light. In the preferred embodiment, the optical members are fixed to a transparent substrate by an optically transparent epoxy and the optical members are walk-off crystals having oppositely directed walk-off directions. The arrangement of optical members is segmented to form discrete optical elements comprising first and second portions supported on a segment of the transparent substrate. The first and second portions exhibit different optical characteristics with respect to manipulating polarization components. In one embodiment, the arrangement is segmented by dicing the optical members in a lengthwise direction in a first series of cuts and dicing the optical members in a widthwise direction in a second series of cuts. In a second embodiment, first and second series of cuts are both at acute angles to interfaces between adjacent optical members, yielding optical elements in which oppositely directed walk-off directions of the first and second portions of an element are parallel to the interface between the portions, but at an acute angle to the sides of the element.

摘要翻译： 制造分裂光学元件的方法包括以并排布置固定多个光学构件，使得邻接的光学构件相对于操纵光的偏振分量具有不同的光学特性。 在优选实施例中，光学构件通过光学透明的环氧树脂固定在透明基板上，并且光学构件是具有相反方向的离去方向的离开晶体。 光学构件的布置被分段以形成离散光学元件，其包括支撑在透明基板的段上的第一和第二部分。 第一和第二部分相对于操纵偏振分量呈现不同的光学特性。 在一个实施例中，通过在第一系列切割中沿长度方向切割光学构件并在第二系列切割中在宽度方向上切割光学构件来分割布置。 在第二实施例中，第一和第二切割系列与相邻光学构件之间的界面呈锐角，产生光学元件，其中元件的第一和第二部分的相反方向的偏离方向平行于 但是与元件的侧面成锐角。

公开(公告)号：US08498538B2

公开(公告)日：2013-07-30

申请号：US12618610

申请日：2009-11-13

申请人： Michael Greenberg ,  Kok Wai Chang

发明人： Michael Greenberg ,  Kok Wai Chang

IPC分类号： H04J14/02 ,  G02B5/18

CPC分类号： G02B27/0944 ,  G02B17/0856 ,  G02B27/4233 ,  H01S3/0057

摘要： An optical signal control system is constructed from a portion of a material and allows for controlled amount of negative dispersion to be generated across a broadband input signal. The block may be made of a single portion of the material and have surfaces with reflective, transmissive, and/or diffractive optical characteristics. By adjusting the physical dimensions of the block substrate and the line pitch of a diffraction grating etched into a surface of the block, the magnitude of the dispersion can be varied. Laser systems that utilize the optical signal control system may have reduced size and weight as compared to existing compressors and be more robust against misalignment.

摘要翻译： 光信号控制系统由材料的一部分构成，允许在宽带输入信号上产生受控量的负色散。 该块可以由材料的单个部分制成并且具有具有反射，透射和/或衍射光学特性的表面。 通过调整块基板的物理尺寸和蚀刻到块的表面中的衍射光栅的线间距，可以改变色散的幅度。 与现有压缩机相比，利用光信号控制系统的激光系统可以具有减小的尺寸和重量，并且对于未对准而言更加鲁棒。

公开(公告)号：US20080298739A1

公开(公告)日：2008-12-04

申请号：US11586093

申请日：2006-10-25

申请人： Kok Wai Chang ,  Jane D. LeGrange

发明人： Kok Wai Chang ,  Jane D. LeGrange

IPC分类号： G02B6/12 ,  G02B6/27

CPC分类号： G02F1/093 ,  H01S3/005

摘要： There is provided a system and method for fabricating an optical isolator. More specifically, there is provided a fiber optical isolator comprising a first isolator stage comprising a Faraday rotator configured to adjust the polarity of a light beam, and a heat sink coupled to the Faraday rotator and configured to dissipate heat generated in the Faraday rotator by the light beam.

摘要翻译： 提供了一种用于制造光隔离器的系统和方法。 更具体地，提供了一种光纤隔离器，其包括第一隔离器级，该隔离器级包括被配置为调节光束的极性的法拉第转子和耦合到法拉第转子的散热器，并且被配置为消散法拉第转子中产生的热量 光束。

公开(公告)号：US06275637B1

公开(公告)日：2001-08-14

申请号：US09346202

申请日：1999-06-30

申请人： Kok Wai Chang ,  Yong Huang

发明人： Kok Wai Chang ,  Yong Huang

IPC分类号： G02B602

CPC分类号： G02B6/2713 ,  G02B6/02042 ,  G02B6/2552 ,  G02B6/2746 ,  G02B6/2766 ,  G02B6/29332

摘要： An optical isolator coupled to a thermally expanded multiple core fiber. The thermally expanded multiple core fiber having at least one input core and one output core. The optical isolator to propagate light from an input core to an output core, while inhibiting the propagation of light from an output core to an input core of the thermally expanded multiple core fiber. The fiber cores having expanded mode field diameters that may facilitate coupling to the optical isolator and reduce component size in the optical isolator.

摘要翻译： 耦合到热膨胀的多芯光纤的光隔离器。 具有至少一个输入核心和一个输出核心的热膨胀多芯纤维。 光隔离器将光从输入核心传播到输出核心，同时抑制光从输出核心传播到热膨胀的多芯光纤的输入核心。 光纤芯具有扩展模场直径，其可以促进耦合到光隔离器并减小光隔离器中的部件尺寸。

公开(公告)号：US6078716A

公开(公告)日：2000-06-20

申请号：US275354

申请日：1999-03-23

申请人： Yong Huang ,  Kok Wai Chang

发明人： Yong Huang ,  Kok Wai Chang

IPC分类号： G02B6/255 ,  G02B6/26 ,  G02B6/34 ,  G02B6/02

CPC分类号： G02B6/2713 ,  G02B6/02042 ,  G02B6/2552 ,  G02B6/2746 ,  G02B6/2766 ,  G02B6/29332

摘要： An optical fiber having a thermally expanded multiple core section. One such multiple core section may be fabricated by fusing together non-etched multiple fiber claddings resulting in the multiple cores having expanded mode fields that are positioned in close proximity to each other in a common cladding, without signal coupling between the cores. The close proximity of the cores having expanded mode fields may allow for tighter alignment of light waves propagated from one core to other cores.

摘要翻译： 一种具有热膨胀多芯部分的光纤。 可以通过将未蚀刻的多个光纤包层熔合在一起而制成一个这样的多个芯部分，导致多个芯具有在公共包层中彼此靠近定位的扩展模场，而在芯之间没有信号耦合。 具有扩展模式场的芯的紧密接近可以允许从一个芯传播到其它芯的光波的更紧密的对准。

公开(公告)号：US20100149641A1

公开(公告)日：2010-06-17

申请号：US12618610

申请日：2009-11-13

申请人： Michael Greenberg ,  Kok Wai Chang

发明人： Michael Greenberg ,  Kok Wai Chang

IPC分类号： G02B5/18 ,  B05D5/06

CPC分类号： G02B27/0944 ,  G02B17/0856 ,  G02B27/4233 ,  H01S3/0057

摘要： An optical signal control system is constructed from a portion of a material and allows for controlled amount of negative dispersion to be generated across a broadband input signal. The block may be made of a single portion of the material and have surfaces with reflective, transmissive, and/or diffractive optical characteristics. By adjusting the physical dimensions of the block substrate and the line pitch of a diffraction grating etched into a surface of the block, the magnitude of the dispersion can be varied. Laser systems that utilize the optical signal control system may have reduced size and weight as compared to existing compressors and be more robust against misalignment.

摘要翻译： 光信号控制系统由材料的一部分构成，允许在宽带输入信号上产生受控量的负色散。 该块可以由材料的单个部分制成并且具有具有反射，透射和/或衍射光学特性的表面。 通过调整块基板的物理尺寸和蚀刻到块的表面中的衍射光栅的线间距，可以改变色散的幅度。 与现有压缩机相比，利用光信号控制系统的激光系统可以具有减小的尺寸和重量，并且对于未对准而言更加鲁棒。

公开(公告)号：US6149278A

公开(公告)日：2000-11-21

申请号：US342891

申请日：1999-06-29

申请人： Hongwei Mao ,  Yi-Xin Chen ,  Kok Wai Chang

发明人： Hongwei Mao ,  Yi-Xin Chen ,  Kok Wai Chang

IPC分类号： G02B26/02 ,  G02B5/08

CPC分类号： G02B26/02

摘要： The invention provides an optical attenuator having a pair of substantially parallel mirrors that attenuate an optical signal based, at least in part, on the rotation angle of the mirrors. When the pair or mirrors is in a predetermined position, an input optical signal is directed from an input port to an output port with a minimum insertion loss. As the pair of mirrors is rotated, the optical signal is shifted parallelly, which provides increased insertion loss and an attenuated signal at the output port. The pair of mirrors can be rotated, for example, with a stepper motor, or other device.

摘要翻译： 本发明提供一种光衰减器，其具有至少部分地基于反射镜的旋转角度来衰减光信号的一对基本上平行的反射镜。 当对或反射镜处于预定位置时，以最小的插入损耗将输入光信号从输入端口引导到输出端口。 当一对反射镜旋转时，光信号平行移动，这在输出端口提供了增加的插入损耗和衰减信号。 该对镜可以例如用步进电机或其他装置旋转。