公开(公告)号：US08358398B2

公开(公告)日：2013-01-22

申请号：US12356038

申请日：2009-01-19

申请人： Xuehua Wu ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

发明人： Xuehua Wu ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

IPC分类号： G02F1/13 ,  G02F1/1335 ,  G02B27/28

CPC分类号： G02B6/2713 ,  G02B6/2931 ,  G02F1/0136 ,  G02F1/1326 ,  G02F1/133 ,  G02F1/133528 ,  G02F1/31 ,  G02F2001/13355 ,  G02F2201/122 ,  G02F2201/307 ,  G02F2203/48

摘要： An optical device is configured to perform both switching and attenuation of an optical beam in response to a single control signal. The optical device includes a liquid-crystal-based beam-polarizing element having polarization-conditioning regions that are controlled using a common electrode. The first polarization-conditioning region conditions the polarization of the input beam in order to separate the input beam into a primary component and a residual component. The second and third polarization-conditioning regions change the polarization of the primary component and the residual component, respectively. The primary component is directed to an output port after it has been attenuated based on its polarization state. The residual component, after passing through the third polarization-conditioning region, has its intensity further reduced based on its polarization state.

摘要翻译： 光学装置被配置为响应于单个控制信号执行光束的切换和衰减。 光学装置包括具有使用公共电极控制的偏振调节区域的基于液晶的光束偏振元件。 第一偏振调节区域调节输入光束的偏振，以便将输入光束分离成初级分量和残余分量。 第二和第三偏振调节区分别改变初级分量和残余分量的极化。 基于其极化状态衰减后，主要成分被引导到输出端口。 残留分量在通过第三偏振调节区域之后，其强度基于其极化状态进一步减小。

公开(公告)号：US20120236247A1

公开(公告)日：2012-09-20

申请号：US13485052

申请日：2012-05-31

申请人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

发明人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC分类号： G02F1/13

CPC分类号： G02F1/1313 ,  G02B5/3083 ,  G02B6/35 ,  G02B27/283 ,  G02F1/1326 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/31

摘要： An optical switch for performing high extinction ratio switching of an optical signal includes a beam polarizing element and one or more optical elements. The optical elements are configured to direct an optical signal along a first or second optical path based on the polarization state of the optical signal as it passes through the optical elements. The optical switch performs high extinction ratio switching of the optical signal by preventing unwanted optical energy from entering an output port by using an absorptive or reflective optical element or by directing the unwanted optical energy along a different optical path.

摘要翻译： 用于执行光信号的高消光比切换的光开关包括光束偏振元件和一个或多个光学元件。 光学元件被配置为当光信号通过光学元件时，基于光信号的偏振状态沿着第一或第二光路引导光信号。 光开关通过使用吸收或反射光学元件防止不想要的光能进入输出端口或通过沿着不同的光路引导不想要的光能来执行光信号的高消光比切换。

公开(公告)号：US08094982B2

公开(公告)日：2012-01-10

申请号：US12014728

申请日：2008-01-15

申请人： Xuehua Wu ,  Haijun Yuan ,  Younsheng Liu ,  Christopher Lin ,  Giovanni Barbarossa

发明人： Xuehua Wu ,  Haijun Yuan ,  Younsheng Liu ,  Christopher Lin ,  Giovanni Barbarossa

IPC分类号： G02B6/32 ,  G02B6/42

CPC分类号： G02B6/32 ,  G02B6/12009

摘要： A fiber lens assembly is configured to optically couple an optical fiber to a signal processing device having free-space optical elements. The fiber lens assembly includes a diverging lens having a focal length that may be around 2 to 6 times the diameter of the optical fiber core. Sensitivity of the fiber lens assembly to angular misalignment and positional displacement is reduced by coupling the optical fiber to the signal processing device using a diverging lens rather than a collimating lens, and by configuring the diverging lens with a suitable focal length.

摘要翻译： 光纤透镜组件被配置为光纤耦合到具有自由空间光学元件的信号处理装置。 光纤透镜组件包括具有可能为光纤芯直径的2至6倍的焦距的发散透镜。 通过使用发散透镜而不是准直透镜将光纤耦合到信号处理装置，并且通过配置具有合适焦距的发散透镜来减少光纤透镜组件对角度偏移和位置位移的灵敏度。

公开(公告)号：US20080219663A1

公开(公告)日：2008-09-11

申请号：US12014736

申请日：2008-01-15

申请人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

发明人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC分类号： H04J14/02

CPC分类号： G02F1/31 ,  G02B6/2931 ,  G02B6/3512 ,  G02B6/3546 ,  G02B6/356 ,  G02F2001/311

摘要： An optical switching device for wavelength divisional multiplexed signals uses cascaded arrays of optical steering devices for 1×N routing of WDM optical signals, where N=4, 8, 16, etc. Two cascaded arrays provide 1×4 switching; three cascaded arrays provide 1×8 switching; and so on. Each array is configured with independently controlled optical steering devices so that each wavelength channel of the WDM signal may be routed to any of N output ports. The optical steering devices may be micro-mirrors, liquid crystal-based polarization modulators, or a combination of both. By incorporating cascaded optical steering devices into a single WDM switching device, cost effective 1×N switching of WDM optical signals may be realized.

摘要翻译： 用于波分复用信号的光学开关装置使用光学转向装置的级联阵列，用于WDM光信号的1xN路由，其中​​N = 4,8,16等。两个级联阵列提供1x4切换; 三个级联阵列提供1x8切换; 等等。 每个阵列配置有独立控制的光学转向装置，使得WDM信号的每个波长信道可以路由到N个输出端口中的任一个。 光学转向装置可以是微反射镜，基于液晶的偏振调制器或两者的组合。 通过将级联光学转向装置并入到单个WDM开关装置中，可实现成本有效的1xDM切换WDM光信号。

公开(公告)号：US20080218680A1

公开(公告)日：2008-09-11

申请号：US12014730

申请日：2008-01-15

申请人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

发明人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC分类号： G02F1/13 ,  H04J14/00

CPC分类号： G02F1/1313 ,  G02B5/3083 ,  G02B6/35 ,  G02B27/283 ,  G02F1/1326 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/31

摘要： An optical switch for performing high extinction ratio switching of an optical signal includes a beam polarizing element and one or more optical elements. The optical elements are configured to direct an optical signal along a first or second optical path based on the polarization state of the optical signal as it passes through the optical elements. The optical switch performs high extinction ratio switching of the optical signal by preventing unwanted optical energy from entering an output port by using an absorptive or reflective optical element or by directing the unwanted optical energy along a different optical path.

摘要翻译： 用于执行光信号的高消光比切换的光开关包括光束偏振元件和一个或多个光学元件。 光学元件被配置为当光信号通过光学元件时，基于光信号的偏振状态沿着第一或第二光路引导光信号。 光开关通过使用吸收或反射光学元件防止不想要的光能进入输出端口或通过沿着不同的光路引导不想要的光能来执行光信号的高消光比切换。

公开(公告)号：US08605247B2

公开(公告)日：2013-12-10

申请号：US13485052

申请日：2012-05-31

申请人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

发明人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC分类号： G02F1/13 ,  G02B27/28

CPC分类号： G02F1/1313 ,  G02B5/3083 ,  G02B6/35 ,  G02B27/283 ,  G02F1/1326 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/31

摘要： An optical switch for performing high extinction ratio switching of an optical signal includes a beam polarizing element and one or more optical elements. The optical elements are configured to direct an optical signal along a first or second optical path based on the polarization state of the optical signal as it passes through the optical elements. The optical switch performs high extinction ratio switching of the optical signal by preventing unwanted optical energy from entering an output port by using an absorptive or reflective optical element or by directing the unwanted optical energy along a different optical path.

公开(公告)号：US08346084B2

公开(公告)日：2013-01-01

申请号：US11945996

申请日：2007-11-27

申请人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

发明人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC分类号： H04J14/02

CPC分类号： G02B6/2938 ,  G02B6/2931 ,  G02B6/356

摘要： An optical device for a wavelength division multiplexing system has a telecentric lens system and a signal-processing optical element, where the signal-processing optical element performs switching, attenuation, or other optical signal processing for the optical device. The telecentric lens system acts as a self-compensating optical system to minimize sensitivity of the optical device to unwanted displacement of an input image from the optical axis of the optical device. The optical device may include multiple telecentric lens systems, in which case the optical device is also less sensitive to precise alignment between the telecentric lens systems.

摘要翻译： 用于波分复用系统的光学装置具有远心透镜系统和信号处理光学元件，其中信号处理光学元件执行用于光学器件的切换，衰减或其它光信号处理。 远心透镜系统用作自补偿光学系统，以使光学装置的灵敏度最小化，使输入图像不受光学装置的光轴的偏移。 光学装置可以包括多个远心透镜系统，在这种情况下，光学装置对远心透镜系统之间的精确对准也不那么敏感。

公开(公告)号：US08203691B2

公开(公告)日：2012-06-19

申请号：US12014730

申请日：2008-01-15

申请人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

发明人： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC分类号： G02F1/13 ,  G02B27/28

CPC分类号： G02F1/1313 ,  G02B5/3083 ,  G02B6/35 ,  G02B27/283 ,  G02F1/1326 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/31

摘要： An optical switch for performing high extinction ratio switching of an optical signal includes a beam polarizing element and one or more optical elements. The optical elements are configured to direct an optical signal along a first or second optical path based on the polarization state of the optical signal as it passes through the optical elements. The optical switch performs high extinction ratio switching of the optical signal by preventing unwanted optical energy from entering an output port by using an absorptive or reflective optical element or by directing the unwanted optical energy along a different optical path.

摘要翻译： 用于执行光信号的高消光比切换的光开关包括光束偏振元件和一个或多个光学元件。 光学元件被配置为当光信号通过光学元件时，基于光信号的偏振状态沿着第一或第二光路引导光信号。 光开关通过使用吸收或反射光学元件防止不想要的光能进入输出端口或通过沿着不同的光路引导不想要的光能来执行光信号的高消光比切换。

公开(公告)号：US20080219619A1

公开(公告)日：2008-09-11

申请号：US12014728

申请日：2008-01-15

申请人： Xuehua Wu ,  Haijun Yuan ,  Younsheng Liu ,  Christopher Lin ,  Giovanni Barbarossa

发明人： Xuehua Wu ,  Haijun Yuan ,  Younsheng Liu ,  Christopher Lin ,  Giovanni Barbarossa

IPC分类号： G02B6/32 ,  G02B6/35

CPC分类号： G02B6/32 ,  G02B6/12009

摘要： A fiber lens assembly is configured to optically couple an optical fiber to a signal processing device having free-space optical elements. The fiber lens assembly includes a diverging lens having a focal length that may be around 2 to 6 times the diameter of the optical fiber core. Sensitivity of the fiber lens assembly to angular misalignment and positional displacement is reduced by coupling the optical fiber to the signal processing device using a diverging lens rather than a collimating lens, and by configuring the diverging lens with a suitable focal length.

摘要翻译： 光纤透镜组件被配置为光纤耦合到具有自由空间光学元件的信号处理装置。 光纤透镜组件包括具有可能为光纤芯直径的2至6倍的焦距的发散透镜。 通过使用发散透镜而不是准直透镜将光纤耦合到信号处理装置，并且通过配置具有合适焦距的发散透镜来减少光纤透镜组件对角度偏移和位置位移的灵敏度。

公开(公告)号：US07603006B2

公开(公告)日：2009-10-13

申请号：US11875533

申请日：2007-10-19

申请人： Ming Cai ,  Xuehua Wu ,  Giovanni Barbarossa

发明人： Ming Cai ,  Xuehua Wu ,  Giovanni Barbarossa

IPC分类号： G02B6/26

CPC分类号： G02B6/3524 ,  G02B6/3512 ,  G02B6/3528 ,  G02B6/3556

摘要： An optical switch with a compact form factor includes a multiple-fiber collimator and an angle tuning element for deflecting an optical beam from an input fiber into one of at least two output fibers. The angle tuning element may be provided between a pair of coaxially-aligned collimators, one of which is the multiple-fiber collimator. Alternatively, the angle tuning element may be provided between the multiple-fiber collimator and a reflective surface, so that only one collimator is required and the optical switch may be designed to have its input and output ports on the same side.

摘要翻译： 具有紧凑形状因数的光学开关包括多光纤准直器和用于将光束从输入光纤偏转成至少两根输出光纤之一的角度调谐元件。 角度调谐元件可以设置在一对同轴对准的准直器之间，其中一个准直器是多光纤准直器。 或者，角度调谐元件可以设置在多光纤准直器和反射表面之间，使得仅需要一个准直器，并且光学开关可被设计成在其同一侧具有其输入和输出端口。