公开(公告)号：US20120286775A1

公开(公告)日：2012-11-15

申请号：US13519860

申请日：2010-11-22

Applicant: Haijun Yuan

Inventor： Haijun Yuan

IPC: G01R33/032

CPC classification number: G01R33/032 ,  G01R15/246 ,  G01R33/0041

Abstract: A system and method for fiber magneto-optic detection are provided, which belongs to the optical application field. The system comprises: a reference device (300) for generating a reference magnetic field signal with known amplitude and shape at a measurement point; a magneto-optic probe (100) for detecting a magnetic field signal of the measuring point, converting the magnetic field signal into an optical signal, and transmitting to a power supply and signal processing module (400) the optical signal sent by the magneto-optic probe; the power supply and signal processing module (400) for transmitting laser light, and converting the optical signal into an electrical signal after receiving it, and demodulating and analyzing the electric signal to acquire the magnetic field information and/or the current information of the measuring point. The reference device (300) is provided in the system, and the measured signals can be corrected by the reference magnetic field signal generated by the reference device (300) to remove the influences environment factors cause on the measurement. Thus accurate measurement data are acquired and the measurement accuracy of the system is improved.

Abstract translation: 提供了一种属于光学应用领域的光纤磁光检测系统和方法。 该系统包括：用于在测量点处产生具有已知幅度和形状的参考磁场信号的参考装置（300） 用于检测测量点的磁场信号的磁光探头（100），将磁场信号转换成光信号，并将光磁信号发送到电源和信号处理模块（400） 光学探针 用于发射激光的电源和信号处理模块（400），并且在接收到光信号之后将光信号转换成电信号，并且解调和分析电信号以获取磁场信息和/或测量的当前信息 点。 参考装置（300）设置在系统中，并且可以通过由参考装置（300）生成的参考磁场信号来校正测量信号，以消除影响环境因素对测量的影响。 从而获得精确的测量数据，提高系统的测量精度。

公开(公告)号：US20120236247A1

公开(公告)日：2012-09-20

申请号：US13485052

申请日：2012-05-31

Applicant: Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

Inventor： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC: G02F1/13

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

Abstract: 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.

Abstract translation: 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

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

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

IPC: G02B6/32 ,  G02B6/42

CPC classification number: G02B6/32 ,  G02B6/12009

Abstract: 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.

Abstract translation: 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：US20110267049A1

公开(公告)日：2011-11-03

申请号：US13143109

申请日：2009-12-31

Applicant: Haijun Yuan

Inventor： Haijun Yuan

IPC: G01R33/032

CPC classification number: G01R33/032 ,  G01R33/0322

Abstract: An optical fiber magneto-optical detecting device comprises: a light-guiding input part (10) used for importing polarized light; a Faraday magneto-optical rotator (2), which is a magneto-optical crystal and used for affecting the intensity of the polarized light depending on a change of a magnetic field; a light-guiding output part (30) for exporting the polarized light; and a compensation unit (1a, 1b) used for rotating the imported polarized light, thus avoiding near-zero desensitization, and for compensating the temperature error of the magneto-optical crystal. The compensation unit (1a, 1b) is provided between the light-guiding input part (10) and the Faraday magneto-optical rotator (2) or between the Faraday magneto-optical rotator (2) and the light-guiding output part (30).

Abstract translation: 一种光纤磁光检测装置，包括：用于导入偏振光的导光输入部（10）; 法拉第磁光旋转器（2），其是磁光晶体并且用于根据磁场的变化来影响偏振光的强度; 用于输出偏振光的导光输出部分（30）; 以及用于旋转输入的偏振光的补偿单元（1a，1b），从而避免近零脱敏，并补偿磁光晶体的温度误差。 补偿单元（1a，1b）设置在导光输入部分（10）和法拉第磁光旋转器（2）之间或法拉第磁光旋转器（2）和导光输出部分（30）之间 ）。

公开(公告)号：US20080219663A1

公开(公告)日：2008-09-11

申请号：US12014736

申请日：2008-01-15

Applicant: Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

Inventor： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC: H04J14/02

CPC classification number: G02F1/31 ,  G02B6/2931 ,  G02B6/3512 ,  G02B6/3546 ,  G02B6/356 ,  G02F2001/311

Abstract: 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.

Abstract translation: 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

Applicant: Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

Inventor： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC: G02F1/13 ,  H04J14/00

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

Abstract: 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.

Abstract translation: 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：US20120274321A1

公开(公告)日：2012-11-01

申请号：US13519967

申请日：2010-11-22

Applicant: Haijun Yuan

Inventor： Haijun Yuan

IPC: G01R33/032

CPC classification number: G01R33/032 ,  G01R15/24 ,  G01R15/245 ,  G01R15/246 ,  G01R19/00 ,  G01R33/0322 ,  G02F1/09 ,  H01P1/175

Abstract: A system for fiber DC magneto-optic detection and method thereof are provided. The system comprises a power supply and signal processing module (400), an optical fiber device (200), a magneto-optic probe (100) and a reference device (300). The reference device (300) is mounted in the system, and the measured signal can be corrected via a reference magnetic field pulse signal generated by the reference device (300) so as to eliminate the influence that the environmental factors caused on the measurement, and to obtain accurate measurement data, thus improving measurement accuracy of the system.

Abstract translation: 提供了一种用于光纤直流磁光检测的系统及其方法。 该系统包括电源和信号处理模块（400），光纤设备（200），磁光探针（100）和参考设备（300）。 参考装置（300）安装在系统中，并且可以经由参考装置（300）生成的参考磁场脉冲信号来校正测量信号，以消除对测量造成的环境因素的影响，以及 以获得准确的测量数据，从而提高系统的测量精度。

公开(公告)号：US08358398B2

公开(公告)日：2013-01-22

申请号：US12356038

申请日：2009-01-19

Applicant: Xuehua Wu ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

Inventor： Xuehua Wu ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

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

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

Abstract: 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.

Abstract translation: 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：US20090147212A1

公开(公告)日：2009-06-11

申请号：US12356038

申请日：2009-01-19

Applicant: Xuehua WU ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

Inventor： Xuehua WU ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

IPC: G02F1/1347

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

Abstract: 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.

Abstract translation: 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：US08841905B2

公开(公告)日：2014-09-23

申请号：US13519860

申请日：2010-11-22

Applicant: Haijun Yuan

Inventor： Haijun Yuan

IPC: G01R33/02 ,  G01R33/032 ,  G01R33/00 ,  G01R31/00 ,  G01R15/24

CPC classification number: G01R33/032 ,  G01R15/246 ,  G01R33/0041

Abstract: A system and method for fiber magneto-optic detection are provided, which belongs to the optical application field. The system comprises: a reference device (300) for generating a reference magnetic field signal with known amplitude and shape at a measurement point; a magneto-optic probe (100) for detecting a magnetic field signal of the measuring point, converting the magnetic field signal into an optical signal, and transmitting to a power supply and signal processing module (400) the optical signal sent by the magneto-optic probe; the power supply and signal processing module (400) for transmitting laser light, and converting the optical signal into an electrical signal after receiving it, and demodulating and analyzing the electric signal to acquire the magnetic field information and/or the current information of the measuring point. The reference device (300) is provided in the system, and the measured signals can be corrected by the reference magnetic field signal generated by the reference device (300) to remove the influences environment factors cause on the measurement. Thus accurate measurement data are acquired and the measurement accuracy of the system is improved.

Abstract translation: 提供了一种属于光学应用领域的光纤磁光检测系统和方法。 该系统包括：用于在测量点处产生具有已知幅度和形状的参考磁场信号的参考装置（300） 用于检测测量点的磁场信号的磁光探头（100），将磁场信号转换成光信号，并将光磁信号发送到电源和信号处理模块（400） 光学探针 用于发射激光的电源和信号处理模块（400），并且在接收到光信号之后将光信号转换成电信号，并且解调和分析电信号以获取磁场信息和/或测量的当前信息 点。 参考装置（300）设置在系统中，并且可以通过由参考装置（300）生成的参考磁场信号来校正测量信号，以消除影响环境因素对测量的影响。 从而获得精确的测量数据，提高系统的测量精度。