公开(公告)号：US20180109379A1

公开(公告)日：2018-04-19

申请号：US15567200

申请日：2015-04-22

Applicant: Nokia Technologies Oy

Inventor： David Bitauld ,  Hongwei Li ,  Antti Niskanen

IPC: H04L9/08 ,  G02B6/27 ,  G02B6/293 ,  G02B6/28 ,  H04B10/548

CPC classification number: H04L9/0858 ,  G02B6/272 ,  G02B6/274 ,  G02B6/278 ,  G02B6/2861 ,  G02B6/29352 ,  G02B6/29395 ,  G02F1/21 ,  H04B10/2569 ,  H04B10/532 ,  H04B10/548 ,  H04B10/70 ,  H04L9/0852

Abstract: According to an example aspect, there is provided an apparatus comprising a first optical converter coupled to a fibre interface and to two waveguides, a dual rail encoder configured to encode dual rail form light from the two waveguides with payload information, and wherein the dual rail encoder is coupled to the first optical converter or to a second optical converter disposed between the dual rail encoder and the fibre interface, and wherein the first optical converter or the second optical converter is coupled so as to provide polarization encoded light into the fibre interface.

公开(公告)号：US09835798B2

公开(公告)日：2017-12-05

申请号：US15418878

申请日：2017-01-30

Applicant: FUJIKURA LTD.

Inventor： Akira Oka

IPC: G02B6/126 ,  G02B6/27 ,  G02B6/14 ,  G02B6/122 ,  G02B6/125

CPC classification number: G02B6/126 ,  G02B6/122 ,  G02B6/125 ,  G02B6/14 ,  G02B6/274 ,  G02B6/2766 ,  G02B6/305 ,  G02B2006/12147

Abstract: A planar optical waveguide device includes: a substrate; and an optical waveguide that includes a core and a cladding. The core forms a preceding-stage mode conversion section and a subsequent-stage mode conversion section, the preceding-stage mode conversion section being configured to convert a mode of input light, the subsequent-stage mode conversion section being configured to convert a mode of light output from the preceding-stage mode conversion section. Sectional shapes of the first core portion and the second core portion are not congruent with each other at an input end of the preceding-stage mode conversion section, the sectional shape or size of at least one core is continuously changed along a light waveguide direction, and sectional shapes of the first core portion and the second core portion are congruent with each other at an output end of the preceding-stage mode conversion section.

公开(公告)号：US20150262597A1

公开(公告)日：2015-09-17

申请号：US14728140

申请日：2015-06-02

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Yongjun Zhao

IPC: G11B5/48 ,  G02B6/126 ,  G02B6/27

CPC classification number: G11B5/4866 ,  G02B6/126 ,  G02B6/2726 ,  G02B6/274 ,  G11B5/314 ,  G11B2005/0021

Abstract: A polarization rotator for a recording head. The polarization rotator comprises a first waveguide coupled to an input coupler at a first end and a second waveguide. The first waveguide is offset from the second waveguide and a second end of the first waveguide is coupled to a second end of the second waveguide.

Abstract translation: 一种用于记录头的偏振旋转器。 偏振旋转器包括在第一端和第二波导处耦合到输入耦合器的第一波导。 第一波导偏离第二波导，并且第一波导的第二端耦合到第二波导的第二端。

公开(公告)号：US20140010544A1

公开(公告)日：2014-01-09

申请号：US14021332

申请日：2013-09-09

Applicant: Dubravko Ivan Babic

Inventor： Dubravko Ivan Babic

IPC: G02B6/26 ,  H04J14/02

CPC classification number: G02B6/26 ,  G02B6/02052 ,  G02B6/126 ,  G02B6/274 ,  G02B6/2786 ,  G02B6/2817 ,  G02B6/2861 ,  G02B6/29319 ,  G02B6/29343 ,  H01S3/08013 ,  H01S3/08054 ,  H01S5/141 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/4087 ,  H04B10/2587 ,  H04B10/272 ,  H04J14/02

Abstract: An array reflector comprising a waveguide and a high reflectivity mirror is disclosed. The waveguide has an input end and a reflective end. The high reflectivity mirror is disposed at the reflective end. The array reflector also includes n−1 mirrors arrayed along the length of the waveguide, wherein n is an integer greater than two.

Abstract translation: 公开了一种包括波导和高反射镜的阵列反射器。 波导具有输入端和反射端。 高反射镜设置在反射端。 阵列反射器还包括沿着波导长度排列的n-1个反射镜，其中n是大于2的整数。

公开(公告)号：US08559775B2

公开(公告)日：2013-10-15

申请号：US13187358

申请日：2011-07-20

Applicant: Dubravko Ivan Babic ,  Tin Komljenovic ,  Zvonimir Sipus

Inventor： Dubravko Ivan Babic ,  Tin Komljenovic ,  Zvonimir Sipus

IPC: G02B6/26 ,  G02B6/34

CPC classification number: G02B6/26 ,  G02B6/02052 ,  G02B6/126 ,  G02B6/274 ,  G02B6/2786 ,  G02B6/2817 ,  G02B6/2861 ,  G02B6/29319 ,  G02B6/29343 ,  H01S3/08013 ,  H01S3/08054 ,  H01S5/141 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/4087 ,  H04B10/2587 ,  H04B10/272 ,  H04J14/02

Abstract: An array reflector comprising a waveguide and a high reflectivity mirror is disclosed. The waveguide has an input end and a reflective end. The high reflectivity mirror is disposed at the reflective end. The array reflector also includes n−1 mirrors arrayed along the length of the waveguide, wherein n is an integer greater than two.

Abstract translation: 公开了一种包括波导和高反射镜的阵列反射器。 波导具有输入端和反射端。 高反射镜设置在反射端。 阵列反射器还包括沿着波导长度排列的n-1个反射镜，其中n是大于2的整数。

公开(公告)号：US20130069628A1

公开(公告)日：2013-03-21

申请号：US13699772

申请日：2011-05-25

Applicant: Yoshihiro Konno ,  Masaru Sasaki

Inventor： Yoshihiro Konno ,  Masaru Sasaki

IPC: G01R19/00 ,  G02B6/27

CPC classification number: G01R19/00 ,  G01R15/246 ,  G02B6/274 ,  G02B27/283 ,  G02B27/288

Abstract: Disclosed is an optical fibre birefringence compensation mirror. Also disclosed is a current sensor wherein vibration resistance has been increased due to the optical connection of the optical fibre birefringence compensation mirror. The optical fibre birefringence compensation mirror includes: an optical fibre, a birefringence element, a lens, a magnet, a Faraday rotator, and a mirror. From the light incidence/emission end surface of the optical fibre, the birefringence element, Faraday rotator, and mirror are arranged in said order. Light comes in from the optical fibre, and is separated into two linearly polarised lights by the birefringence element. The polarisation planes of the two linearly polarised lights are rotated by the Faraday rotator, and the two linearly polarised lights are point-symmetrically reflected at one point by the mirror, then again rotated by the Faraday rotator, then re-combined into one light by the birefringence element and made to enter the optical fibre.

Abstract translation: 公开了一种光纤双折射补偿镜。 还公开了一种电流传感器，其中由于光纤双折射补偿反射镜的光学连接而使振动阻力增加。 光纤双折射补偿镜包括：光纤，双折射元件，透镜，磁体，法拉第旋转器和反射镜。 从光纤的光入射/发射端面，双折射元件，法拉第旋转器和反射镜按照顺序排列。 光从光纤入射，并通过双折射元件分离为两个线偏振光。 两个直线偏振光的偏振面由法拉第旋转器旋转，两个直线偏振光在一个点上被镜子点对称地反射，然后由法拉第旋转器再次旋转，然后通过 双折射元件并使其进入光纤。

公开(公告)号：US08335405B2

公开(公告)日：2012-12-18

申请号：US12614309

申请日：2009-11-06

Applicant: Charles G Askins

Inventor： Charles G Askins

IPC: G02B6/00 ,  G02B6/34 ,  G01J3/28 ,  G01J4/00

CPC classification number: G01M11/088 ,  G01D5/344 ,  G01D5/35316 ,  G01D5/35354 ,  G01M11/3181 ,  G02B6/274 ,  G02B6/29319

Abstract: An apparatus and accompanying method to measure fiber twist. The method includes independent determination of fiber bending by measuring strain sensing in outer cores of the same fiber. The apparatus includes a multi-core optical fiber comprising a center core and a plurality of peripheral cores at a distance radially from the center core and running parallel to the center core. The center core includes at least one fiber Bragg grating with polarization-dependent reflectivity. The fiber Bragg grating reflects the launched light as reflected light. The apparatus includes a multi-core optical fiber bend sensing system operable to communicate with the multi-core optical fiber. The multi-core optical fiber bend sensing system is operable to sense a bend in the multi-core optical fiber. The apparatus includes a processor operable to communicate with the polarization controller. The apparatus includes a polarization vector analyzer operable to communicate electronically with the processor, and optically with a portion of the light launched into the central core of the optical fiber. The polarization vector analyzer is operable to measure the state of polarization of the launched light. The polarization controller is operable to align the polarization of the launched light with the minor axis or the major axis of birefringence of the FBG. The processor is operable, after the polarization controller aligns the polarization of the launched light, to determine a twist in the multi-core optical fiber based on the polarization of the launched light and the bend in the multi-core optical fiber.

Abstract translation: 一种测量纤维捻度的装置和附带方法。 该方法通过测量同一纤维的外芯中的应变感测来独立确定纤维弯曲。 该装置包括多芯光纤，其包括中心芯和与中心芯径向相距一定距离且平行于中心芯延伸的多个外围芯。 中心芯包括至少一个具有偏振相关反射率的光纤布拉格光栅。 光纤布拉格光栅将发射的光作为反射光反射。 该装置包括可操作以与多芯光纤通信的多芯光纤弯曲感测系统。 多核光纤弯曲传感系统可操作以感测多芯光纤中的弯曲。 该装置包括可操作以与偏振控制器通信的处理器。 该装置包括可操作以与处理器电子通信的偏振矢量分析仪，并且光学地将一部分光发射到光纤的中心芯中。 偏振矢量分析器可操作以测量发射光的偏振状态。 偏振控制器可操作以将发射光的偏振与FBG的双轴折射的短轴或长轴对准。 在偏振控制器对准发射光的偏振之后，处理器可操作，以基于发射光的偏振和多芯光纤中的弯曲来确定多芯光纤中的扭曲。

公开(公告)号：US08319958B2

公开(公告)日：2012-11-27

申请号：US12812320

申请日：2009-01-09

Applicant: Kinichi Sasaki ,  Masao Takahashi ,  Masahiro Hamaguchi ,  Takashi Miyabe ,  Tsuyoshi Kuwabara ,  Tokihiro Umemura

Inventor： Kinichi Sasaki ,  Masao Takahashi ,  Masahiro Hamaguchi ,  Takashi Miyabe ,  Tsuyoshi Kuwabara ,  Tokihiro Umemura

IPC: G01N21/00

CPC classification number: G01C19/721 ,  G01D5/344 ,  G01D5/35351 ,  G01D5/3538 ,  G02B6/024 ,  G02B6/274 ,  G02F1/0134 ,  G02F2203/15 ,  G02F2203/50

Abstract: The present invention provides a photosensor that uses a phase modulation technique for optical detection and conducts a highly accurate measurement. The photosensor uses a phase change difference of light propagated through a polarization preserving fiber with respect to tensile stress and employs proper polarization preserving fibers for a phase modulator 10, light-transmitting polarization preserving fiber 23, and coil-shaped polarization preserving fiber 30, to achieve a highly accurate measurement.

Abstract translation: 本发明提供一种光传感器，其使用相位调制技术进行光学检测，并进行高精度的测量。 光传感器使用相对于拉伸应力通过偏振保留光纤传播的光的相变差，并且对于相位调制器10，透光偏振保留光纤23和线圈状偏振保留光纤30采用适当的偏振保留光纤， 实现高精度测量。

公开(公告)号：US20120033911A1

公开(公告)日：2012-02-09

申请号：US13276281

申请日：2011-10-18

Applicant: Feiling Wang ,  Andrey Vertikov

Inventor： Feiling Wang ,  Andrey Vertikov

IPC: G02B6/126

CPC classification number: G02B6/2793 ,  A61B5/0062 ,  A61B5/0066 ,  A61B5/0071 ,  A61B5/0075 ,  A61B5/0084 ,  A61B5/6852 ,  A61N5/0601 ,  A61N5/0603 ,  A61N5/062 ,  G02B6/2713 ,  G02B6/274 ,  G02B6/3604 ,  G02B23/2469 ,  G02B26/108 ,  G02B27/283

Abstract: Techniques, apparatus and systems that use an optical probe head to deliver light to a target and to collect light from the target for imaging, monitoring, medical diagnostics and medical treatment applications.

Abstract translation: 技术，设备和系统，使用光学探头将光传送到目标物体并从目标物体收集光以进行成像，监测，医疗诊断和医疗处理应用。

公开(公告)号：US08107154B2

公开(公告)日：2012-01-31

申请号：US12289871

申请日：2008-11-06

Applicant: Shin Arahira ,  Hitoshi Murai

Inventor： Shin Arahira ,  Hitoshi Murai

IPC: G02F1/01 ,  G02F1/35 ,  G02B6/00 ,  G02B6/12

CPC classification number: G02F2/004 ,  G02B6/2713 ,  G02B6/274 ,  G02F1/2252 ,  G02F2002/006 ,  G02F2203/07 ,  G02F2203/50 ,  G02F2203/54

Abstract: An optical modulator includes, a first polarization separation and combination portion, a second polarization separation and combination portion, a first polarization plane-maintaining optical fiber, a second polarization plane-maintaining optical fiber, a third polarization plane-maintaining optical fiber of which a first end is coupled with the second input and output terminal of the second polarization separation and combination portion, the third polarization plane-maintaining optical fiber including a first optical coupler, to which control light that is linearly polarized light is input, a fourth polarization plane-maintaining optical fiber of which a first end is coupled with the third input and output terminal of the second polarization separation and combination portion; and a first polarization plane conversion portion that optically communicates with a second end of the third polarization plane-maintaining optical fiber and a second end of the fourth polarization plane-maintaining optical fiber.

Abstract translation: 光调制器包括：第一偏振分离和组合部分，第二偏振分离和组合部分，第一偏振面保持光纤，第二偏振平面维持光纤，第三偏振平面保持光纤，其中 第一端与第二偏振分离和组合部分的第二输入和输出端耦合，第三偏振平面保持光纤包括第一光耦合器，被输入的是线性偏振光的控制光，第四偏振面 - 保持光纤的第一端与第二偏振分离和组合部分的第三输入和输出端耦合; 以及第一偏振面转换部，其与第三偏振面保持用光纤的第二端和第四偏振面保持用光纤的第二端光学连通。