公开(公告)号：EP1491926A4

公开(公告)日：2006-05-17

申请号：EP03712968

申请日：2003-03-26

Applicant: NGK INSULATORS LTD

Inventor： FUKUYAMA MASASHI ,  IWASAKI YASUNORI ,  IDE AKIYOSHI

IPC: G02B6/12 ,  G02B6/36 ,  G02B6/42

CPC classification number: G02B6/3636 ,  G02B6/3652 ,  G02B6/4214 ,  G02B6/423 ,  G02B6/4239 ,  G02B6/4249 ,  H01L2224/48091 ,  H01L2924/00014

Abstract: An optical device (100) comprising a first substrate (104) in which V-grooves (102) are made, four optical fibers (106), for example, having a reflective function and fixed in the V-grooves (102) of the first substrate (104), an optical element (110) bonded, through an adhesive layer (108), onto the optical path of a reflected light at least generated by the reflective function on the outside of the clad of each optical fiber (106), and a second substrate (112) for mounting the optical element (110), wherein the second substrate (112) is disposed such that the mounting surface (112a) of the optical element (110) faces the first substrate (104).

Abstract translation: 具有反射功能的光纤（106）固定在基板（104）的V形槽（102）中。 光学元件（110）通过粘合剂层（108）与纤维结合。 衬底（112）布置在光学元件（110）上，使得表面（112a）面向衬底（104）。 还包括用于光学器件制造方法的独立权利要求。

公开(公告)号：JP2012010054A

公开(公告)日：2012-01-12

申请号：JP2010143414

申请日：2010-06-24

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

Inventor： IWASAKI YASUNORI ,  HORI YUJI ,  KOBAYASHI HIROTOSHI

IPC: H03H9/25 ,  H01L41/09 ,  H01L41/18 ,  H01L41/22 ,  H01L41/313 ,  H03H9/64

Abstract: PROBLEM TO BE SOLVED: To prevent a composite substrate from being remained warped after getting high-temperature in which a piezoelectric substrate and a support substrate are joined with a resin adhesive layer.SOLUTION: An insulating resin adhesive layer 13 which joins a rear face of a piezoelectric substrate 11 and a support substrate 12 includes conductive discharging particles which eliminate charge of the piezoelectric substrate 11. Consequently, a composite substrate 10 and an elastic wave device formed using thereof are prevented from being remained warped after getting high-temperature.

Abstract translation: 要解决的问题：为了防止复合基板在获得其中压电基板和支撑基板与树脂粘合剂层接合的高温之后保持翘曲。 解决方案：连接压电基板11的后表面和支撑基板12的绝缘树脂粘合剂层13包括消除压电基板11的电荷的导电排出颗粒。因此，复合基板10和弹性波装置 防止在形成高温后保持翘曲。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010002850A

公开(公告)日：2010-01-07

申请号：JP2008163525

申请日：2008-06-23

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

Inventor： KOBAYASHI HIROTOSHI ,  KONDO JUNGO ,  IWASAKI YASUNORI ,  EJIRI TETSUYA

IPC: G02F1/03 ,  G02F1/035

Abstract: PROBLEM TO BE SOLVED: To ensure accuracy in control of each DC bias in at least a pair of optical modulation parts by preventing an adverse effect of the DC bias applied to one modulation part while controlling the bias point of the other optical modulator.
SOLUTION: In an optical modulator comprising a substrate having an electrooptical effect, an optical waveguide 4 formed on the substrate, at least a pair of optical modulation parts 2A and 1B disposed in parallel to modulate optical waves by applying a modulation signal to the optical waveguide, and a multiplexing part multiplexing the optical waves modulated by the pair of optical modulation parts 2A and 2B, each DC bias in the pair of optical modulation parts 2A and 2B is controlled. The DC bias applied to one optical modulation part 2A is changed, and a low frequency signal is superimposed to the other optical modulation part 2B, thereby detecting a change in light quantity of the multiplexed optical wave. Based on the detected change, the DC bias of the one optical modulation part 2A is controlled.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了通过防止施加到一个调制部分的DC偏压的不利影响，同时控制另一个光调制器的偏置点来确保在至少一对光调制部分中的每个DC偏置的控制精度 。 解决方案：在包括具有电光效应的衬底的光学调制器中，形成在衬底上的光波导4，平行设置的至少一对光调制部分2A和1B，以通过将调制信号施加到 光波导和多路复用部分复用由一对光调制部分2A和2B调制的光波，控制该对光调制部分2A和2B中的每个DC偏置。 施加到一个光学调制部分2A的DC偏压改变，并且低频信号被叠加到另一个光学调制部分2B，从而检测复用光波的光量的变化。 基于检测到的变化，控制一个光学调制部件2A的直流偏压。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009134279A

公开(公告)日：2009-06-18

申请号：JP2008276657

申请日：2008-10-28

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

Inventor： IDE AKIHIRO ,  KONDO JUNGO ,  MITOMI OSAMU ,  IWASAKI YASUNORI ,  KOBAYASHI HIROTOSHI

IPC: G02F1/03

Abstract: PROBLEM TO BE SOLVED: To improve light-reception efficiency of leaked light of off-mode to further stabilize control of the operating point of the Mach-Zehnder optical waveguide when receiving, by the photo receiver, the leaked light of off-mode emitted from the multiplexing section of the Mach-Zehnder optical waveguide.
SOLUTION: An optical modulator 20 has: an optical waveguide substrate 1 having a pair of principal surfaces 1a, 1c, a pair of side surfaces 1b and an incident face 1d and exit face 1e of light, the substrate being composed of a ferroelectric material; a channel optical waveguide 4 having at least a pair of demultiplexing sections 4b, a multiplexing section 6 of the demultiplexing sections and an exit section 4c provided on the downstream of the multiplexing section, the waveguide being formed on the principal surface 1a; modulation electrodes 2, 3 for applying a signal voltage for modulating light propagating in the demultiplexing sections; and a reflective groove 7 for reflecting the leaked light of off-mode emitted from the multiplexing section 6 and emitting the light from the one principal surface 1a. The operating point of the optical modulator is controlled by changing a DC bias applied to the modulation electrode on the basis of the optical output of the leaked light of off-mode.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了提高关闭模式的泄漏光的光接收效率，以进一步稳定由马赫 - 曾德尔光波导的工作点的控制，通过光接收器， 从Mach-Zehnder光波导的多路复用部分发射的模式。 解决方案：光调制器20具有：具有一对主表面1a，1c，一对侧表面1b和入射面1d和光的出射面1e的光波导基板1，该基板由 铁电材料; 具有至少一对解复用部分4b的通道光波导4，多路分用部分的复用部分6和设置在多路复用部分下游的出口部分4c，波导形成在主表面1a上; 用于施加用于调制在解复用部分中传播的光的信号电压的调制电极2,3; 以及反射槽7，用于反射从复用部分6发射的偏离模式的泄漏光，并从一个主表面1a发射光。 光调制器的工作点是通过根据偏离模式的泄漏光的光输出改变施加到调制电极的直流偏压来控制的。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007233342A

公开(公告)日：2007-09-13

申请号：JP2006342853

申请日：2006-12-20

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

Inventor： IDE AKIHIRO ,  IWASAKI YASUNORI

IPC: G02B6/42

CPC classification number: G02B6/29368 ,  G02B6/2938 ,  G02B6/4214 ,  G02B6/4246 ,  H01L2224/48091 ,  H01L2924/00014

Abstract: PROBLEM TO BE SOLVED: To effectively attenuate reflected light from a band pass filter and to improve characteristics of the whole system using an optical device adaptable to V-ONU.
SOLUTION: An optical device 10A has an optical fiber 26, an optical demultiplexer 14 having an optical demultiplexing member 36 for demultiplexing a portion of an optical signal beam 34 transmitted through the optical fiber 26, and guiding the demultiplexed optical signal beam 38 out of the optical fiber 26, an optical path changer 40 for changing an optical path of the demultiplexed optical signal beam 38 guided out of the optical fiber 26, a waveguide 16 serving as at least a medium from which the demultiplexed optical signal beam 38 is emitted to the optical path changer 40, and a filter 18 disposed on a surface of the waveguide 16. An angle of incidence of the demultiplexed optical signal beam 38 on the filter 18 is equal to or greater than 0.5°.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了有效地衰减带通滤波器的反射光，并且使用适用于V-ONU的光学装置来提高整个系统的特性。 解决方案：光学装置10A具有光纤26，光解复用器14，其具有光解复用部件36，用于对通过光纤26传输的光信号光束34的一部分进行解复用，并且引导解复用的光信号光束38 从光纤26出来的光路改变器40，用于改变由光导纤维26导出的解复用光信号光束38的光路，作为至少介质的波导管16，解复用的光信号光束38是 发射到光路改变器40和设置在波导16的表面上的滤光器18.滤光器18上的解复用的光信号光束38的入射角等于或大于0.5°。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006098702A

公开(公告)日：2006-04-13

申请号：JP2004284360

申请日：2004-09-29

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

Inventor： IDE AKIHIRO ,  IWASAKI YASUNORI ,  FUKUYAMA MASASHI

IPC: G02B6/42 ,  H01L31/0232 ,  H01S5/022

CPC classification number: G02B6/4246 ,  G02B6/29368 ,  G02B6/29382 ,  G02B6/4214 ,  H01L2224/48091 ,  H01S5/02212 ,  H01S5/02248 ,  H01L2924/00014

Abstract: PROBLEM TO BE SOLVED: To use an optical device as a wavelength multiplexing optical terminal component excellent in characteristics and reliability without using optical transmission elements such as a lens and an optical waveguide.
SOLUTION: The optical device 10A comprises an optical fiber installation part 12 where an optical fiber 24 is installed, a slit 26 formed so as to cross the optical axis of the optical fiber 24, and an optical branching member 30 which is inserted in the slit 26 and branches a part of signal light 28 transmitted in the optical fiber 24, and also comprises an optical branching part 14 for guiding the branch light 32 from the optical branching member 30 to the outside of the optical fiber 24, an optical path changing part 34 for changing the optical path of the branch light 32 guided to the outside the optical fiber 24, a waveguide member 16 used as an outgoing medium for the optical path changing part 34, and a filter 18 formed on the surface of the waveguide member 16.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 解决的问题：在不使用诸如透镜和光波导之类的光传输元件的情况下，使用光学装置作为特性和可靠性优异的波长复用光学终端部件。 解决方案：光学装置10A包括安装光纤24的光纤安装部分12，形成为穿过光纤24的光轴的狭缝26和插入的光分支部件30 在狭缝26中分支在光纤24中传输的一部分信号光28，还包括用于将分支光32从光分支构件30引导到光纤24的外部的光分支部14，光学 路径改变部分34，用于改变引导到光纤24外部的分支光32的光路;用作光路改变部分34的出射介质的波导部件16;以及形成在光纤24的表面上的滤光器18 波导构件16.版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006019614A

公开(公告)日：2006-01-19

申请号：JP2004197831

申请日：2004-07-05

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

Inventor： IWASAKI YASUNORI ,  FUKUYAMA MASASHI ,  IDE AKIHIRO

IPC: H01L31/02

Abstract: PROBLEM TO BE SOLVED: To provide an optical output monitor which is capable of maintaining an excellent light receiving characteristic irrespective of miniaturization, with an excellent productivity.
SOLUTION: The optical output monitor 1 has a photodiode (PD) 2, a PD sub-mount 3 arranged with the PD 2 on one surface, and a plate-shaped spacer 4 arranged toward a back surface side on one surface 3a of the PD sub-mount. The spacer 4 has a first spacer 5 having a first through hole 6 penetrating in a thickness direction, and a second spacer 7 arranged on the surface 5a side (a surface 4a side of the spacer) of the first spacer and having a second through hole 8 penetrating in a thickness direction so as to interconnect with the first through hole 6. The PD 2 is disposed in the first through hole 6, and at least a part of the surface 5a of the first spacer is exposed outside the second spacer 7 to form the adhering surface 5c of the first spacer.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够以小型化而保持优良的光接收特性的光输出监视器，具有优异的生产率。 解决方案：光输出监视器1具有光电二极管（PD）2，在一个表面上配置有PD 2的PD子安装件3，以及在一个表面3a上朝向背面侧配置的板状间隔件4 的PD子安装。 间隔件4具有第一间隔件5，第一间隔件5具有沿厚度方向贯通的第一通孔6，以及第二间隔件7，该第二间隔件7布置在第一间隔件的表面5a侧（间隔件的表面4a侧），并具有第二通孔 8沿厚度方向穿透以与第一通孔6相互连接.PD2设置在第一通孔6中，并且第一间隔件的表面5a的至少一部分暴露在第二间隔件7的外部到 形成第一间隔物的粘附表面5c。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005283610A

公开(公告)日：2005-10-13

申请号：JP2004092751

申请日：2004-03-26

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

Inventor： IDE AKIHIRO ,  IWASAKI YASUNORI ,  FUKUYAMA MASASHI

IPC: G02B6/42 ,  G02B6/00

Abstract: PROBLEM TO BE SOLVED: To provide a fixed attenuator which is precisely manufactured at low cost, capable of being miniaturized and arrayed, and further to which an optical monitoring function is given. SOLUTION: The fixed attenuator 1 is provided with a substrate 20 on which one or more V-shaped grooves 10 are formed and one or more optical transmission members 30 fixed in the V-shaped grooves 10, and a gap 36 is formed diagonally with respect to an optical axis on at least one of the optical transmission members 30. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够以低成本精确制造的能够小型化和排列的固定衰减器，并且进一步提供光学监测功能。 解决方案：固定衰减器1设置有基板20，其上形成有一个或多个V形槽10和固定在V形槽10中的一个或多个光学传输构件30，并且形成间隙36 在光传输部件30中的至少一个上相对于光轴对角地放置。（C）2006，JPO＆NCIPI

公开(公告)号：JP2004281905A

公开(公告)日：2004-10-07

申请号：JP2003074004

申请日：2003-03-18

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

Inventor： TOYODA SHUHEI ,  ASANO MURAHITO ,  IWASAKI YASUNORI

IPC: H01L31/10

Abstract: PROBLEM TO BE SOLVED: To improve the BER of an output device of a light receiving element, by making nearly equal to each other the current-loop distances present in its photodiode array, and by reducing its crosstalk.
SOLUTION: The output device of the light receiving element has a photodiode array substrate 13 having a formed photodiode array 15, and has an output substrate having an amplifying circuit for amplifying the output signals outputted from respective photodiodes 16. Further, the current-loop distance ranging from a common electrode 19 to each photodiode 16 and the current-loop distance of each signal electrode 18 connected with each photodiode 16 are made nearly equal to each other.
COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004246331A

公开(公告)日：2004-09-02

申请号：JP2003383955

申请日：2003-11-13

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

Inventor： FUKUYAMA MASASHI ,  IWASAKI YASUNORI ,  IDE AKIHIRO

IPC: G02B5/28 ,  G02B6/293

Abstract: PROBLEM TO BE SOLVED: To prevent an optical member, which is used for optical communication equipment to filter out light of specified wavelength of light from an optical fiber and reflects a portion of the light, from curving. SOLUTION: The optical member 10 is in a flat plate shape formed by sandwiching an optical thin film 11 between substrates 12 and 13, which have mechanical strength. Thus, the optical thin film 11 is sandwiched between the substrates 12 and 13 to correct stress due to a difference in thermal expansion, thereby preventing the optical member from curving. COPYRIGHT: (C)2004,JPO&NCIPI