公开(公告)号：US20170285373A1

公开(公告)日：2017-10-05

申请号：US15087449

申请日：2016-03-31

申请人： Chunshu Zhang ,  Jia Jiang ,  Dominic John Goodwill ,  Patrick Dumais

发明人： Chunshu Zhang ,  Jia Jiang ,  Dominic John Goodwill ,  Patrick Dumais

IPC分类号： G02F1/01 ,  G02B6/293 ,  G02B6/27 ,  G02F1/225

CPC分类号： G02F1/0136 ,  G02B6/2773 ,  G02B6/29302 ,  G02B6/29344 ,  G02F1/0121 ,  G02F1/2257 ,  G02F2001/0142 ,  G02F2001/212

摘要： A photonic platform based polarization controller providing a fixed target polarization is disclosed. The polarization controller has a polarization rotator splitter splitting the beam into first and second feeds corresponding to first and second orthogonal polarization components. A first Mach-Zehnder interferometer (MZI) stage provides a first phase delay between the first and second feeds based on a first control signal, and a first mixer mixes the first and second feeds to provide third and fourth feeds. A second MZI stage provides a second phase delay between the third and fourth feeds based on a second control signal, and a second mixer mixes the third and fourth feeds to provide fifth and sixth feeds. A third MZI stage provides a third phase delay between the fifth and sixth feeds based on a third control signal, and a third mixer mixes the fifth and sixth feeds to provide the fixed target polarization. An optical tap splits a portion of the beam.

公开(公告)号：US08682113B2

公开(公告)日：2014-03-25

申请号：US13297108

申请日：2011-11-15

申请人： John Heaton

发明人： John Heaton

IPC分类号： G02F1/035

CPC分类号： G02F1/0136 ,  B82Y20/00 ,  G02F1/01708 ,  G02F1/025 ,  G02F2001/0142 ,  G02F2202/101

摘要： An electro-optic waveguide polarization modulator includes cladding layers, and a waveguide core sandwiched between the cladding layers, wherein the waveguide core has a higher refractive index than the cladding layers. The modulator further includes primary electrodes arranged on the opposite side of one cladding layer to the core and a secondary electrode arranged on the opposite side of another cladding layer to the core. The electrodes are arranged to provide an electric field having field components in perpendicular directions within the waveguide core so as to modulate the refractive index such that electromagnetic radiation propagating through the core is converted from a first polarization state to a second polarization state. The modulator further includes a grading layer sandwiched between the cladding layers and the core, the grading layer having an effective refractive index intermediate between that of the waveguide core and the cladding layer.

摘要翻译： 电光波导偏振调制器包括包覆层和夹在包层之间的波导芯，其中波导芯具有比包覆层更高的折射率。 该调制器还包括一主电极，该主电极布置在与芯一个包覆层相对的一侧上，并且辅助电极布置在另一包覆层相对于芯的另一侧。 这些电极布置成在波导芯内提供垂直方向上具有场分量的电场，以便调节折射率，使得通过芯传播的电磁辐射从第一偏振状态转换为第二偏振状态。 所述调制器还包括夹在所述包层和所述芯之间的分级层，所述分级层具有在所述波导芯和所述包层之间的中间的有效折射率。

公开(公告)号：US20140037257A1

公开(公告)日：2014-02-06

申请号：US13564995

申请日：2012-08-02

申请人： Tseng-Mau Yang ,  Christopher D. Prest ,  Dale N. Memering

发明人： Tseng-Mau Yang ,  Christopher D. Prest ,  Dale N. Memering

IPC分类号： F21V8/00

CPC分类号： G02B6/08 ,  G02B6/0078 ,  G02B2006/12145 ,  G02F1/3137 ,  G02F2001/0142

摘要： A display may have an array of display pixels that generate an image. A coherent fiber bundle may be mounted on the display pixels. The coherent fiber bundle may have a first surface that is adjacent to the display pixels and a second surface that is visible to a viewer. The coherent fiber bundle may contain fibers that carry light from the first surface to the second surface. The second surface may be planar or may have a central planar region and curved edge regions that run along opposing sides of the central planar region. The fibers may have cross-sectional surface areas with a first aspect ratio on the first surface and a second aspect ratio that is greater than the first aspect ratio on the second surface.

摘要翻译： 显示器可以具有生成图像的显示像素阵列。 相干光纤束可以安装在显示像素上。 相干光纤束可以具有与显示像素相邻的第一表面和观察者可见的第二表面。 相干纤维束可以包含携带从第一表面到第二表面的光的纤维。 第二表面可以是平面的或者可以具有中心平面区域和沿着中心平面区域的相对侧延伸的弯曲边缘区域。 纤维可以具有在第一表面上具有第一纵横比的横截面表面区域，并且第二纵横比大于第二表面上的第一长宽比。

公开(公告)号：US08611534B2

公开(公告)日：2013-12-17

申请号：US12310922

申请日：2007-09-12

申请人： Ewan D Finlayson ,  Philip M Gorman ,  John M Heaton ,  Michael J Kane ,  Brian S Lowans

发明人： Ewan D Finlayson ,  Philip M Gorman ,  John M Heaton ,  Michael J Kane ,  Brian S Lowans

IPC分类号： G02F1/35 ,  H04J14/06 ,  H04L9/00

CPC分类号： G02F1/0136 ,  G02F1/025 ,  G02F2001/0142 ,  G02F2202/101

摘要： An electro-optic waveguide polarization modulator (20) comprising a waveguide core (4) having first and second faces defining a waveguide core plane, a plurality of primary electrodes (22, 24) arranged at a first side of the waveguide core plane and out of said plane, and at least one secondary electrode (26) arranged at a second side of the waveguide core plane and out of said plane, wherein the electrodes (22, 24, 26) are adapted in use to provide an electric field having field components (13, 15) in two substantially perpendicular directions within the waveguide core (4) so as modulate the refractive index thereof such that electromagnetic radiation propagating through the core (4) is converted from a first polarization state to a second polarization state.

摘要翻译： 一种电光波导偏振调制器（20），包括具有限定波导芯平面的第一和第二面的波导芯（4），布置在波导芯平面的第一侧的多个主电极（22,24） 以及至少一个辅助电极（26），其布置在所述波导芯平面的第二侧并且离开所述平面，其中所述电极（22,24,26）在使用中适于提供具有场的电场 组件（13,15）在波导芯（4）内的两个基本上垂直的方向上，以便调制其折射率，使得通过芯（4）传播的电磁辐射从第一偏振状态转换为第二偏振状态。

公开(公告)号：US20120148183A1

公开(公告)日：2012-06-14

申请号：US13297108

申请日：2011-11-15

申请人： John Heaton

发明人： John Heaton

IPC分类号： G02F1/035

CPC分类号： G02F1/0136 ,  B82Y20/00 ,  G02F1/01708 ,  G02F1/025 ,  G02F2001/0142 ,  G02F2202/101

摘要： An electro-optic waveguide polarisation modulator includes cladding layers, and a waveguide core sandwiched between the cladding layers, wherein the waveguide core has a higher refractive index than the cladding layers. The modulator further includes primary electrodes arranged on the opposite side of one cladding layer to the core and a secondary electrode arranged on the opposite side of another cladding layer to the core. The electrodes are arranged to provide an electric field having field components in perpendicular directions within the waveguide core so as to modulate the refractive index such that electromagnetic radiation propagating through the core is converted from a first polarisation state to a second polarisation state. The modulator further includes a grading layer sandwiched between the cladding layers and the core, the grading layer having an effective refractive index intermediate between that of the waveguide core and the cladding layer.

摘要翻译： 电光波导偏振调制器包括包覆层和夹在包层之间的波导芯，其中波导芯具有比包覆层更高的折射率。 该调制器还包括一主电极，该主电极布置在与芯一个包覆层相对的一侧上，并且辅助电极布置在另一包覆层相对于芯的另一侧。 这些电极布置成在波导芯内提供垂直方向上具有场分量的电场，以便调节折射率，使得通过芯传播的电磁辐射从第一偏振状态转换为第二偏振状态。 所述调制器还包括夹在所述包层和所述芯之间的分级层，所述分级层具有在所述波导芯和所述包层之间的中间的有效折射率。

公开(公告)号：US20080175528A1

公开(公告)日：2008-07-24

申请号：US12018290

申请日：2008-01-23

申请人： Makoto Kumatoriya

发明人： Makoto Kumatoriya

IPC分类号： G02B6/10

CPC分类号： G02B6/14 ,  G02F1/0316 ,  G02F2001/0142 ,  G02F2202/20

摘要： A TE-TM mode converter is provided which is capable of performing a TE-TM conversion in a wide bandwidth. In a TE-TM mode converter using an electrooptic effect, a waveguide is formed on a substrate using lithium tantalate having a birefringence of about 0.0005 or less. The direction of an optical axis of lithium tantalate forming the waveguide is approximately parallel to a primary surface of the substrate. In addition, a first electrode and a second electrode are provided on the primary surface of the substrate so as to face each other with the waveguide placed therebetween.

摘要翻译： 提供了能够在宽带宽内进行TE-TM转换的TE-TM模式转换器。 在使用电光效应的TE-TM模式转换器中，使用双折射约0.0005或更小的钽酸锂形成在衬底上的波导。 形成波导的钽酸锂的光轴的方向大致平行于基板的主表面。 此外，第一电极和第二电极设置在基板的主表面上，以便将波导置于其间彼此面对。

公开(公告)号：US06493473B1

公开(公告)日：2002-12-10

申请号：US09366090

申请日：1999-08-03

申请人： Edward L. Wooten

发明人： Edward L. Wooten

IPC分类号： G02B600

CPC分类号： G02F1/0136 ,  G02F1/3137 ,  G02F2001/0142

摘要： Disclosed are methods and apparatus for providing endless transformation of the polarization of light. A polarization splitter splits light having an input polarization into beams having substantially orthogonal polarizations. The beams are provided as substantially copolarized to a pair of optical waveguides which are selectively optically coupled. Electrodes apply selected electric fields to the optical waveguides for providing transformation of the input polarization to a selected output polarization. The outputs of the optical waveguides are provided as substantially orthogonally polarized to a combiner for providing a beam of output light having the selected output polarization.

摘要翻译： 公开了用于提供光的偏振的无限变换的方法和装置。 偏振分束器将具有输入偏振的光分成具有基本正交偏振的光束。 光束被提供为与选择性光耦合的一对光波导基本上共极化。 电极将所选择的电场施加到光波导，以将输入偏振转换为所选择的输出偏振。 光波导的输出被提供为用于提供具有所选输出偏振的输出光束的组合器基本正交极化。

公开(公告)号：US5781669A

公开(公告)日：1998-07-14

申请号：US625367

申请日：1996-04-01

申请人： Steffen Schmid ,  Sergio Bosso

发明人： Steffen Schmid ,  Sergio Bosso

IPC分类号： G02B6/12 ,  G02B6/126 ,  G02B6/14 ,  G02F1/01 ,  G02F1/125 ,  G02F1/313 ,  H01P1/20 ,  G02F1/335 ,  H01L21/70

CPC分类号： G02F1/125 ,  G02F1/3132 ,  G02F2001/0142 ,  G02F2203/055 ,  G02F2203/06

摘要： An acoustooptical wavelength device for wavelength selection includes one substrate of a birefringent and photoelastic material on which there is formed: first and second rotation stages of the polarization plane of an optical signal in a first wavelength interval, wherein each stage comprises at least one optical waveguide traveled over by the signal; at least one optical waveguide, connecting the two stages and carrying one single polarizer consisting of an evanescent-wave polarization coupler; and at least one optical waveguide carrying one polarizer being finally provided downstream of the second stage.

摘要翻译： 一种用于波长选择的声光波长装置包括：一个双折射和光弹性材料的基片，其上形成有：在第一波长间隔中的光信号的偏振面的第一和第二旋转级，其中每一级包括至少一个光波导 由信号旅行; 至少一个光波导，连接两个级并携带由ev逝波偏振耦合器组成的一个单一偏振器; 并且至少一个携带一个偏振器的光波导最终设置在第二级的下游。

公开(公告)号：US4776656A

公开(公告)日：1988-10-11

申请号：US43085

申请日：1987-04-27

申请人： Norman A. Sanford ,  William A. Dyes ,  James M. Connors

发明人： Norman A. Sanford ,  William A. Dyes ,  James M. Connors

IPC分类号： G02B6/12 ,  G02B6/14 ,  G02F1/01 ,  G02F1/035

CPC分类号： G02F1/0353 ,  G02F2001/0142 ,  G02F2201/066

摘要： A TE-TM mode converter utilizes a Y-cut lithium niobate crystal which includes a straight titanium-diffused channel extending along the Z-axis of the crystal. A parallel pair of electrodes lie symmetrically on opposite sides of the channel. a.c. and d.c. voltage supplies are connected to the electrodes to supply voltages so as to effect complete conversion from one direction of polarization to the other direction of polarization of a wave applied as an input to one end of the channel for abstraction at the opposite end.

公开(公告)号：US4533207A

公开(公告)日：1985-08-06

申请号：US506456

申请日：1983-06-21

申请人： Rodney C. Alferness

发明人： Rodney C. Alferness

IPC分类号： H04B10/00 ,  G02B6/14 ,  G02F1/01 ,  G02F1/03 ,  G02F1/035 ,  G02F1/05 ,  H04B10/04 ,  H04B10/06 ,  H04B10/142 ,  H04B10/152 ,  G02B5/14

CPC分类号： G02F1/0353 ,  G02F2001/0142

摘要： An improved wavelength tunable TE to TM optical mode converter is provided by confining the electric fields for mode conversion and wavelength tuning to non-overlapping regions of a bi-refringent waveguide. Several electrode configurations for providing this spatial separation are disclosed.

摘要翻译： 通过将用于模式转换和波长调谐的电场限制在双折射波导的非重叠区域来提供改进的波长可调TE到TM光模转换器。 公开了用于提供这种空间分离的几种电极结构。