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    STRUCTURE FOR FIXING OPTICAL WAVEGUIDE ELEMENT
    1.
    发明专利
    STRUCTURE FOR FIXING OPTICAL WAVEGUIDE ELEMENT 失效

    公开(公告)号：JP2000089184A

    公开(公告)日：2000-03-31

    申请号：JP25478698

    申请日：1998-09-09

    Applicant: NGK INSULATORS LTD

    Inventor： KONDO JUNGO ,  HAMASHIMA AKIRA

    IPC: G02F1/035

    Abstract: PROBLEM TO BE SOLVED: To provide a new structure for fixing an optical waveguide element to reduce optical loss during an operation for the optical waveguide device using an optical waveguide element which is relatively small in the thickness of at least a portion where electrodes are formed and enables high speed modulation. SOLUTION: An optical waveguide element 10 is provided with a substrate 1 which is provided with a pair of main surfaces that are opposed to each other and has an electrooptical effect, an optical waveguide 2 which is formed on one of main surfaces 1A of the substrate 1, electrodes 3 which apply modulation signals to light waves that propagate in the waveguide 2, and a thin thickness portion 5 which is formed at least at the position where the electrodes 3 are located on the substrate 1 and has a relatively thin thickness. The element 10 is fixed to a plate shaped member 12 by first fixing adhesive 13. The member 12 is fixed to a base 11 by second fixing adhesive 15 so that the member 12 is placed between the element 10 and a casing 11.

    ILLUMINATION METHOD USED FOR OPTICAL FIBER STRUCTURE MEASUREMENT
    2.
    发明专利
    ILLUMINATION METHOD USED FOR OPTICAL FIBER STRUCTURE MEASUREMENT 失效

    公开(公告)号：JPH08136397A

    公开(公告)日：1996-05-31

    申请号：JP27111694

    申请日：1994-11-04

    Applicant: NGK INSULATORS LTD

    Inventor： HATA RYOICHI ,  HAMASHIMA AKIRA

    IPC: G01M11/00

    Abstract: PURPOSE: To provide an illumination method used for optical fiber structure measurement which can improve measurement accuracy. CONSTITUTION: In an illumination method used when one end face of an optical fiber 1 is photographed by a CCD camera 4, a photographed image is image- processed by an image processor 5 and structure of the optical fiber 1 is measured, the other end face of the optical fiber 1 is irradiated with light from a light source 7 and transparent illumination is performed by an illumination device 8 for irradiating the CCD camera 4 with light from rearward of the optical fiber 1 at one end face.

    Piezoelectric thin-film device
    3.
    发明专利
    Piezoelectric thin-film device 审中-公开
    压电薄膜器件

    公开(公告)号：JP2007228320A

    公开(公告)日：2007-09-06

    申请号：JP2006047822

    申请日：2006-02-24

    Applicant: Ngk Insulators Ltd ,  Ngk Optoceramics Co Ltd ,  エヌジーケイ・オプトセラミックス株式会社 ,  日本碍子株式会社

    Inventor： YOSHINO TAKASHI ,  YAMAGUCHI SHOICHIRO ,  IWATA YUICHI ,  HAMASHIMA AKIRA ,  SUZUKI KENGO

    IPC: H03H9/17

    Abstract: PROBLEM TO BE SOLVED: To provide a piezoelectric thin-film device of which characteristics are improved.
    SOLUTION: In a piezoelectric thin-film filter 1 including four piezoelectric thin-film resonators R11-R14, a filter section 11, which provides the filter function of the piezoelectric thin-film filter 1, is adhered to a flat base substrate 13, which supports the filter section 11 mechanically, via an adhesive layer 12. In the piezoelectric thin-film filter 1, a piezoelectric body thin film 119 is adhered to the base substrate 13 via a cavity formation film 114 formed in a non-excitation region E1X in the piezoelectric body thin film 111, thus retaining excitation regions E11-E14 of the piezoelectric body thin film 111 in the air without any control, and preventing the upper and lower surfaces of the excitation regions E11-E14 from coming into contact with other portions.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种其特性得到改善的压电薄膜器件。 解决方案：在包括四个压电薄膜谐振器R11-R14的压电薄膜滤波器1中，提供压电薄膜滤波器1的滤波功能的滤波器部分11粘附到平坦的基底基板 通过粘合剂层12机械地支撑过滤器部分11.在压电薄膜过滤器1中，压电体薄膜119通过形成为非激发的空腔形成膜114粘附到基底基板13上 压电体薄膜111中的区域E1X，从而将压电体薄膜111的激发区域E11-E14保持在空气中，无需任何控制，并且防止激发区域E11-E14的上表面和下表面与 其他部分。 版权所有（C）2007，JPO＆INPIT

    OPTICAL TRANSMISSION MEMBER FIXING DEVICE
    5.
    发明专利
    OPTICAL TRANSMISSION MEMBER FIXING DEVICE 失效

    公开(公告)号：JPH10325914A

    公开(公告)日：1998-12-08

    申请号：JP8111898

    申请日：1998-03-27

    Applicant: NGK INSULATORS LTD

    Inventor： OSUGI YUKIHISA ,  HAMASHIMA AKIRA ,  TOYODA SHUHEI ,  KOZUKA YOSHINARI ,  NAKASUJI YOSHIATSU

    IPC: G02B6/24 ,  G02B6/00

    Abstract: PROBLEM TO BE SOLVED: To prevent a characteristic such as an insertion loss, etc., of light from deteriorating even when a heat shock or a heat cycle is applied in a wide temp. range. SOLUTION: An optical transmission member fixing device is provided with a substrate 17 provided with a housing groove 9 housing a core wire 8 and a cap 15 integrated with the substrate 17. A housing space 39 housing at least a coating part of an optical transmission member is provided between the substrate and the cap. The size of the housing space is larger than the size of the housing groove in viewing in the width direction of the optical transmission member. An adhesives 20 for fixing the core wire is filled up to the surround of the core wire 8 in the housing groove 9. The adhesives 21, 22 for fixing the optical transmission member is filled up to the surround of the optical transmission member in the housing space 39. The thickness of the adhesive surrounding the optical transmission member 8 in a boundary area 27 between the housing space 39 and the housing groove 9 is reduced continuously toward the housing groove 9 at least in the vicinity of the opening 9a of the end of the housing groove 9.

    COUPLING STRUCTURE FOR OPTICAL WAVEGUIDE AND OPTICAL FIBER
    6.
    发明专利
    COUPLING STRUCTURE FOR OPTICAL WAVEGUIDE AND OPTICAL FIBER 失效

    公开(公告)号：JPH09105834A

    公开(公告)日：1997-04-22

    申请号：JP23820496

    申请日：1996-09-09

    Applicant: NGK INSULATORS LTD

    Inventor： KOZUKA YOSHINARI ,  HAMASHIMA AKIRA ,  OSUGI YUKIHISA

    IPC: G02B6/30

    Abstract: PROBLEM TO BE SOLVED: To provide a coupling structure which suppresses the deterioration in the propagation characteristic of light of optical waveguides in the coupling structure for the optical waveguides and optical fibers using dolly plates. SOLUTION: The dolly plates 22 and 30 are fixed onto both ends of an LiNbO3 substrate 11 formed with the Ti-diffused optical waveguide 13. The recessed part 24 of the dolly plate 22 is disposed on the optical waveguides 16 and 17 and the recessed part 34 of the dolly plate 30 is disposed on the optical waveguide 15 to prevent the direct contact of the bases of the dolly plates 22 and 30 with the optical waveguides 15, 16, 17. The dolly plate 22 reinforces the joining of the LiNbO3 substrate 11, a ceramic substrate 62 holding the bare optical fiber 70 and a quartz cap 64. The dolly plate 30 plays the role of joining of the LiNbO3 substrate 11, a ceramic substrate 82 holding the bare optical fiber 90 and a quartz cap 84.

    Optical modulator
    7.
    发明专利
    Optical modulator 审中-公开
    光学调制器

    公开(公告)号：JP2010230741A

    公开(公告)日：2010-10-14

    申请号：JP2009075390

    申请日：2009-03-26

    Applicant: Ngk Insulators Ltd ,  日本碍子株式会社

    Inventor： KONDO JUNGO ,  AOKI KENJI ,  IWATA YUICHI ,  EJIRI TETSUYA ,  HAMASHIMA AKIRA

    IPC: G02F1/035 ,  G02B6/12 ,  G02B6/122 ,  G02B6/30

    Abstract: PROBLEM TO BE SOLVED: To suppresses coupling loss between an optical modulator and an outside optical fiber and coupling loss inside the optical modulator, in the optical modulator which achieves velocity matching by adopting a thin plate with a thickness of 10 μm or less in an optical modulation section. SOLUTION: The optical modulator 10A includes: a support substrate 1; a substrate 3 for modulation comprising an electro-optical material; an optical waveguide 4 which is provided on one principal surface 3a side of the substrate 3 for modulation; an electrode which is provided on another principal surface 3b side of the substrate 3 for modulation and applies voltage for modulating light propagating in the optical waveguide; and an adhesive layer 2 which adheres one principal surface 3a of the substrate 3 for modulation to the support substrate 1. The substrate 3 for modulation includes: a modulation section 7 with a thickness of 10 μm or less for at least performing modulation of light propagating in the optical waveguide 4; and an optical fiber connection 6 thicker than the modulation section 7. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 解决的问题为了抑制光调制器和外部光纤之间的耦合损耗以及光调制器内部的耦合损耗，在通过采用厚度为10μm以下的薄板实现速度匹配的光调制器中 在光调制部分中。 光调制器10A包括：支撑基板1; 用于调制的基板3，包括电光材料; 光波导4，其设置在用于调制的基板3的一个主表面3a侧; 电极，设置在用于调制的基板3的另一个主表面3b侧，并施加用于调制在光波导中传播的光的电压; 以及粘合层2，其将用于调制的基板3的一个主表面3a粘附到支撑基板1上。用于调制的基板3包括：至少进行光传播调制的厚度为10μm以下的调制部7 在光波导4中; 以及比调制部分7厚的光纤连接6。版权所有（C）2011，JPO＆INPIT

    Method of producing slab type two-dimensional photonic crystal structure
    8.
    发明专利
    Method of producing slab type two-dimensional photonic crystal structure 有权
    生产SLAB型二维光子晶体结构的方法

    公开(公告)号：JP2008052108A

    公开(公告)日：2008-03-06

    申请号：JP2006229210

    申请日：2006-08-25

    Applicant: Ngk Insulators Ltd ,  日本碍子株式会社

    Inventor： IWATA YUICHI ,  MITOMI OSAMU ,  KONDO JUNGO ,  AOKI KENJI ,  YOSHINO TAKASHI ,  HAMASHIMA AKIRA

    IPC: G02B6/13 ,  G02B1/02 ,  G02B6/12 ,  G02F1/01 ,  G02F1/017 ,  G02F1/035

    CPC classification number: G02B6/1225 ,  B82Y20/00 ,  G02B6/12

    Abstract: PROBLEM TO BE SOLVED: To provide a method of accurately and efficiently forming a large number of through holes, in producing a slab type two-dimensional photonic crystal structure having a slab composed of a dielectric single crystal and a grid row formed by the through holes. SOLUTION: The method includes a recess forming process in which one main face 1a of a substrate 1 composed of a dielectric single crystal is etched to form recesses 4 in the substrate 1 and a through hole forming process in which the other face 1b of the substrate 1 is mechanically processed to form a slab 10, so that the recesses 4 pass through the substrate 1 to form through holes 11. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：为了提供一种准确有效地形成大量通孔的方法，在制造具有由电介质单晶构成的板的平板型二维光子晶体结构和由 通孔。 解决方案：该方法包括凹陷形成工艺，其中蚀刻由电介质单晶构成的衬底1的一个主面1a以在衬底1中形成凹陷4，并且通孔形成过程中，另一面1b 对基板1进行机械加工以形成板坯10，使得凹部4穿过基板1形成通孔11.（C）2008，JPO＆INPIT

    MEASURING METHOD OF MAINTAINED POLARIZATION PLANE SURFACE OF POLARIZATION PLANE MAINTAINING OPTICAL FIBER
    9.
    发明专利
    MEASURING METHOD OF MAINTAINED POLARIZATION PLANE SURFACE OF POLARIZATION PLANE MAINTAINING OPTICAL FIBER 失效

    公开(公告)号：JPH08136402A

    公开(公告)日：1996-05-31

    申请号：JP27111594

    申请日：1994-11-04

    Applicant: NGK INSULATORS LTD

    Inventor： HATA RYOICHI ,  HAMASHIMA AKIRA

    IPC: G01M11/00 ,  G01M11/02

    Abstract: PURPOSE: To provide a measuring method of the maintained polarization plane of a polarization plane maintaining optical fiber in which a maintained polarization plane can be obtained easily and precisely. CONSTITUTION: A one-end surface 1a of a polarization plane maintaining optical fiber 1 is picked up from the frontal surface by means of a CCD camera 4, a picked up image is image-processed by means of an image processing unit 5, the maintained wave polarization plane of the polarization plane maintaing optical fiber can be thereby measured. It is desirable to make while light incident from a one-end surface picked up by means of the polarization plane maintaing optical fiber and the other end surface on the opposite side and to take an image processing method in which the inertial main axis of a binarized image of a core is obtained and the obtained inertial main axis is obtained as a maintained polarization plane in order to measure the maintained polarization plane precisely.

    MANUFACTURE OF COUPLED BODY OF LIGHT GUIDE SUBSTRATE AND SUBSTRATE FOR OPTICAL FIBER ARRAYING
    10.
    发明专利
    MANUFACTURE OF COUPLED BODY OF LIGHT GUIDE SUBSTRATE AND SUBSTRATE FOR OPTICAL FIBER ARRAYING 失效

    公开(公告)号：JPH04316005A

    公开(公告)日：1992-11-06

    申请号：JP10831091

    申请日：1991-04-15

    Applicant: NGK INSULATORS LTD

    Inventor： ICHIKI TAKENORI ,  HAMASHIMA AKIRA ,  ABE TETSUHISA ,  KONDO ATSUO

    IPC: G02B6/30

    Abstract: PURPOSE:To couple the end face of a light guide, formed on the light guide substrate, with the end face of an optical fiber with high accuracy without aligning their optical axes. CONSTITUTION:The bottom face and/or flank of a substrate material is selected as a reference face. The substrate material is divided into a light substrate material and, for example, a couple of substrate materials for optical fiber arraying. The light guide 6 is formed on the surface of the light guide substrate material by using the reference face after the division as a position reference to obtain the light guide substrate 14. A V groove 5 is formed in the surface of each substrate material for optical fiber arraying by using the reference face after the division as the position reference to form the couple of substrates 13A and 13B for optical fiber arraying. An optical fiber 7 is put in each V grooves 5. The end faces 9 and 19 formed by driving the substrate material are coupled together again. At this time, the end face of the light guide 6 and the end face of the optical fiber 7 are coupled with each other.

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