| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | 리튬 탄탈레이트 기판 및 이의 제조 방법 | KR1020040023849 | 2004-04-07 | KR1020040087923A | 2004-10-15 | 가지가야도미오; 가쿠타다카시 |
| PURPOSE: A lithium tantalate substrate is provided to prevent a comb pattern formed on a substrate from being broken and avoid damage to a lithium tantalate substrate by preventing sparks from being generated by a charge build-up on the substrate. CONSTITUTION: A lithium tantalate substrate has thermal strength of a heat treatment process in which lithium tantalate of an ingot state is buried in carbon powder or maintained in a carbon receptacle at a temperature from 650 deg.C to 1650 deg.C. The heat treatment process is continued for more than 4 hours. The lithium tantalate substrate is blackened by the heat treatment process. | ||||||
| 62 | 광도파로소자와 그 제조방법 | KR1019930006529 | 1993-04-19 | KR100134763B1 | 1998-04-23 | 에다카즈오; 스기하라미호 |
| 본 발명은 광통신등에 사용하는 광변조기등의 광도파로소자에 관한 것으로, 특히 광파이버와의 결합 손실이 적고, 또 전파손실 및 광손상이 적은 광도파로소자의 구조와 그 제조방법을 제공하는 것을 목적으로 한다. 본 발명은, 전기광학효과를 가지고, 기본재료조성 혹은 결정방위의 상위에 의해 굴절률이 다른 단결정유전체기판을, 적어도 2매, 직접 접합한 기판, 혹은 이 기판의 소정의 부위에 형성된 유리막에 의해 접합기판, 혹은 이 기판의 소정의 부위에 형성된 규소막 또는 산화규소막 또는 질화규소막에 의해 접합한 기판에, 그 굴절률의 차에 의해, 한쪽의 단결정유전체 기판내에 광이 가두어진 광도파로를 가지고, 그 광도파로를 통과하는 광을 전기광학효과에 의해 제어하도록한 구성으로 이루어진다. | ||||||
| 63 | 2차원 광 변조 소자 및 이를 포함하는 전자 기기 | KR20160152967 | 2016-11-16 | KR20180055298A | 2018-05-25 | KIM SUN IL; KIM JUNG WOO; LEE DU HYUN; SHIN CHANG GYUN; CHOI BYOUNG LYONG |
| 외부신호에따라굴절률이변하는물질을포함하는굴절률가변층과, 상기굴절률가변층에인접배치되는유전체안테나를포함하는광 변조소자가개시된다. 굴절률가변층의굴절률변화에따라유전체안테나의공진특성이조절됨으로써입사광이변조될수 있다. | ||||||
| 64 | 레이저 조명 장치 | KR1020137028943 | 2012-04-03 | KR101849435B1 | 2018-04-16 | 가지야마,고이찌; 미즈무라,미찌노부; 하따나까,마꼬또; 야나가와,요시까쯔 |
| 레이저조명장치는, 광원으로부터출사된펄스레이저광의광로상에, 플라이아이렌즈및 콘덴서렌즈가배치되어있고, 광원과플라이아이렌즈사이또는플라이아이렌즈와콘덴서렌즈사이에는, 펄스레이저광을입사광에대해서그 편향방향을연속적으로변화시켜투과시키는전기광학결정소자가배치되어있다. 이전기광학결정소자는, 예를들어한 쌍의전극과이 전극사이에배치된광학결정재료에의해구성되어있고, 전극사이에전압을인가하여전계를발생시킴으로써, 전기광학결정소자의굴절률이변화된다. 이에의해, 플라이아이렌즈의투과광의간섭무늬에의한조명불균일을저감할수 있다. | ||||||
| 65 | 고파워 전자기 합 주파수 생성기 시스템 | KR1020127011937 | 2010-10-14 | KR101798251B1 | 2017-12-12 | 토어하우게,모르텐; 모르텐센,예스퍼릴토프; 라스무센,예스퍼루베흐 |
| 본발명은고파워전자기합 주파수생성기시스템으로서, 전파로를따라방사되는제1 기본필드및 제2 기본필드를생성하기위한레이저와같은적어도제1 전자기원과, 전파로를따라연속적으로배열되는제1 비선형요소및 제2 비선형요소를포함하고, 제1 비선형요소는제1 기본필드및 제2 기본필드로부터제1 편광을갖는제1 합주파수필드를생성하도록구성되고, 제2 비선형요소는제1 및제2 입사기본필드로부터제2 편광을갖는제2 합주파수필드를생성하도록구성되고, 제1 및제2 합주파수필드양자모두는전파로를따라전파되며, 고파워전자기합 주파수생성기시스템은제1 합주파수필드및 제2 합주파수필드를포함하는출력을가지며, 제1 편광의방향은 2개의편광이비평행이도록제2 편광의방향과함께소정각도를형성하는, 고파워전자기합 주파수생성기시스템에관한것이다. | ||||||
| 66 | 굴절률 정합 구조체를 구비한 전기 발색 장치 | KR1019940700699 | 1992-09-03 | KR100261203B1 | 2000-07-01 | 파키,브이,제이.; 트럼보어,포레스트,에이.; 반다인.존,이 |
| 본 발명은 전도층(11-m)에 점한 착색재(102)를 구비하여 전도층(11-m) 및 착색재(10-2)를 통한 입사 복사선의 투광도가 향상된 발색 장치에 관한 것이다. 전도층을 포함하는 층(11a/11B)의 굴절률을 조정함으로써 투광도가 향상될 수 있다. | ||||||
| 67 | PARAMETRIC TERAHERTZ RADIATION GENERATION WITH LATERAL BEAM COUPLING | PCT/GB2005002912 | 2005-07-26 | WO2006010916A3 | 2006-04-27 | RAE CAMERON F; DUNN MALCOLM H; TERRY JONATHAN A C |
| An optical parametric device, for example an optical parametric generator or amplifier or oscillator, comprising a non-linear material (13) that is operable to generate a signal and an idler wave in response to being stimulated with a pump wave. The non-linear medium is such that the pump and idler waves are substantially collinear and the signal wave is non-collinear. | ||||||
| 68 | OPTICAL SYSTEM | PCT/DE0104580 | 2001-12-04 | WO0246837A3 | 2003-04-10 | PERTSCH THOMAS; PESCHEL ULF; BRAEUER ANDREAS; LEDERER FALK |
| The invention relates to an optical system for opto-optical information processing, which can be used in the field of integrated optics, especially for light-controlled switching, branching light and regenerating optical signals in communications networks. The aim of the invention is to provide a means of processing optical signals simply and flexibly. The inventive optical system uses a waveguide array in which the individual waveguides are coupled evanescently. At least one signal beam of a known wavelength is coupled into the waveguide array at an angle which prevents the signal beam from being diffracted when passing through said waveguide array, with at least one control beam of a known wavelength. The signal beam and the control beam cross inside the waveguide array, so an influence can be exerted. | ||||||
| 69 | DEVICE FOR MULTIPLYING LIGHT FREQUENCIES | PCT/EP0200466 | 2002-01-18 | WO02057846A3 | 2003-03-20 | HINKOV ILIYANA; HINKOV VLADIMIR |
| The invention relates to a device for multiplying light frequencies, especially laser light. Said device comprises an optically non-linear element having a grid structure with normal regions and inversion regions, the direction of the spontaneous polarisation in the inversion regions being inverted in relation to the normal direction in the normal regions. The inventive device also comprises electrodes for producing an electric field. The aim of the invention is to create a device which enables light frequencies to be multiplied and a higher conversion efficiency of a coupled pumping wave in relation to known devices. To this end, the grid structure consists of at least one first grid section (21; 41; 65) and one second grid section (22; 42; 66) which is directly adjacent to the first grid section (21; 41; 65), the electrodes (29, 30; 51, 52; 54, 55; 58, 59, 60; 72, 73) being associated with the second grid section (22; 42; 66). | ||||||
| 70 | METHOD FOR PRESSURIZED ANNEALING OF LITHIUM NIOBATE AND RESULTING LITHIUM NIOBATE STRUCTURES | PCT/US9910394 | 1999-05-11 | WO9963393A3 | 2000-09-21 | BURROWS LEE J |
| In one aspect of the invention, a method for pressurized annealing of lithium niobate or lithium tantalate structures, such as optical modulators and optical wave guides, comprises pressurizing an oxygen atmosphere containing a lithium niobate or lithium tantalate structure above normal atmospheric pressure, heating the structure to a temperature ranging from about 150 degrees Celsius to about 1000 degrees Celsius, maintaining pressure and temperature to effect ion exchange or to relieve stress, and cooling the structure to an ambient temperature at an appropriate ramp down rate. In another aspect of the invention a lithium niobate structure such as an optical waveguide or an optical modulator comprises an optically transparent portion that is substantially void of free protons. | ||||||
| 71 | Optical device including a monolithic body of optical material and related methods | US15890605 | 2018-02-07 | US10365536B1 | 2019-07-30 | Micah H. Jenkins; Christopher J. Carron; Charles F. Middleton |
| An optical device may include a monolithic body of optical material including an optical signal port, an optical coupler/splitter portion including a plurality of optical couplers/splitters arranged in a planar configuration and coupled to the optical signal port, and a phase modulation portion including a plurality of phase shifters arranged in a planar configuration and coupled to respective ones of the plurality of optical couplers/splitters. The monolithic body may also include a fanning-array portion including a plurality of optical waveguides extending from the phase modulation portion in a planar configuration and fanning to a two-dimensional array on an edge of the monolithic body. | ||||||
| 72 | OPTICAL MODULATOR AND OPTICAL TRANSMISSION DEVICE USING OPTICAL MODULATOR | US15555605 | 2016-09-16 | US20190049756A1 | 2019-02-14 | Norikazu MIYAZAKI; Toru SUGAMATA |
| To perform a stable bias control by improving detection accuracy of intensity of an dither signal component, which is detected by a photo detector, in an optical modulator including a bias electrode to which a dither signal is applied, and a photo detector that monitors an optical signal propagating through the inside of an optical waveguide in the same substrate. The optical modulator includes: a substrate having a piezoelectric effect (102); an optical waveguide (116a or the like) that is formed on the substrate; a bias electrode (158a or the like) that controls an optical wave that propagates through the optical waveguide; and a photo detector (168a or the like) that is formed on the substrate, and monitors an optical signal that propagates along the optical waveguide. At least one suppressing unit (190 or the like), which suppresses a surface acoustic wave that propagates from the bias electrode to the photo detector, is disposed between a region in which the bias electrode is formed and a portion in which the photo detector is disposed on the substrate. | ||||||
| 73 | FPC-ATTACHED OPTICAL MODULATOR AND OPTICAL TRANSMISSION APPARATUS USING SAME | US15851851 | 2017-12-22 | US20180180908A1 | 2018-06-28 | Kei KATOU; Toru SUGAMATA |
| An optical modulator includes: an optical modulation element which is accommodated in a housing and has a signal electrode; a lead pin for inputting a high-frequency signal; a relay substrate in which a conductor pattern which electrically connects the lead pin and the signal electrode is formed; and a conductive extension portion which extends along a length direction of the lead pin in a range which includes at least a position of a connection portion between the lead pin and the conductor pattern, in which the extension portion is electrically connected to the housing. | ||||||
| 74 | OPTICAL WAVEGUIDE DEVICE | US15515671 | 2016-03-31 | US20180039104A1 | 2018-02-08 | Youichi HOSOKAWA; Norikazu MIYAZAKI |
| ObjectTo provide an optical waveguide device capable of suppressing an excess optical loss at a low level.MeansAn optical waveguide device including a substrate having an electro-optic effect, an optical waveguide 1 formed on the substrate, and a control electrode having a signal electrode 2 and ground electrodes 3 and 4 for controlling light waves that propagate through the optical waveguide, in which the signal electrode 2 has, in an intersection portion in which the signal electrode 2 is disposed on the optical waveguide 1, a narrow portion at which a width of the signal electrode 2 is narrower than those of portions before and after the intersection portion. | ||||||
| 75 | SUB-VOLT DRIVE 100 GHZ BANDWIDTH ELECTRO-OPTIC MODULATOR | US15649455 | 2017-07-13 | US20170307954A1 | 2017-10-26 | Nadir Dagli |
| Electro-optical modulators and methods of fabrication are disclosed. An electro-optical modulator includes a Mach-Zehnder interferometer containing an intrinsic silicon layer semiconductor layer and a coplanar waveguide. Signals from the coplanar waveguide are capacitively coupled to the Mach-Zehnder interferometer through first and second dielectric layers. | ||||||
| 76 | High power visible laser with a laser-fabricated nonlinear waveguide | US15318593 | 2015-06-29 | US09778542B2 | 2017-10-03 | Gregory David Miller; Gennady Imeshev |
| Novel methods and systems for waveguide fabrication and design are disclosed. Designs are described for fabricating ridge, buried and hybrid waveguides by a femtosecond pulsed laser. A laser system may combine a diode bar, a wavelength combiner and a waveguide. The waveguide may convert the electromagnetic radiation of an infrared laser into that the visible-wavelength range. | ||||||
| 77 | OPTICAL DEVICE | US15515098 | 2015-09-30 | US20170227798A1 | 2017-08-10 | Yoshizumi ISHIKAWA; Youichi HOSOKAWA; Masayuki MOTOYA; Satoshi OIKAWA |
| An optical device is provided, which includes: an optical waveguide provided in a substrate having an electro-optic effect; a signal electrode provided on the substrate and above the optical waveguide; and a peeling prevention film which is provided on at least a part of an outer peripheral portion of the substrate and at a position spaced apart from the signal electrode, and also serves as a ground electrode. | ||||||
| 78 | Optical phased array using stacked parallel plate wave guides and method of fabricating arrays of stacked parallel plate waveguides | US15035333 | 2015-09-01 | US09696605B2 | 2017-07-04 | Peter N. Russo; Jeffrey L. Jew; Paul R. Moffitt |
| A method for fabricating crystalline dielectric material on top of metal layers to produce an apparatus for non-mechanical steering of an input laser beam is provided. The apparatus may include a plurality of stacked parallel dielectric waveguides, each waveguide of which is fabricated by separating layers of dielectric material from a donor wafer and bonding the separated layers of dielectric material to a receiving wafer. A plurality of voltages is applied across the stacked parallel dielectric waveguides. Each of the stacked parallel dielectric waveguides is electrically phase modulated to deflect an output beam in a predictable manner. | ||||||
| 79 | Femtosecond ultraviolet laser | US15008326 | 2016-01-27 | US09660412B2 | 2017-05-23 | Klaus Vogler; Joerg Klenke; Johannes Loerner |
| A method and system for generating femtosecond (fs) ultraviolet (UV) laser pulses enables stabile, robust, and optically efficient generation of third harmonic fs laser pulses using periodically-poled quasi-phase-matched crystals. The crystals have different numbers of periodically poled crystalline layers that enable a long conversion length without back-conversion and without a special phase-matching direction. The fs UV laser may have a high conversion efficiency and may be suitable for high power operation. | ||||||
| 80 | OPTICAL DEVICE AND TRANSMITTER | US15281166 | 2016-09-30 | US20170017098A1 | 2017-01-19 | Masaki Sugiyama; Shinji Maruyama |
| An optical device includes an optical waveguide that includes an incident waveguide, parallel waveguides along an electrode, and emission waveguides, formed on a substrate having an electro-optical effect, a first emission waveguide among the emission waveguides is set as an output waveguide of signal light, for output to an external destination and a second emission waveguide among the emission waveguides is set as a monitoring optical waveguide for the signal light; a photodetector that is disposed over the monitoring optical waveguide; and a groove formed on a portion of the substrate, where the photodetector of the monitoring optical waveguide is disposed. The monitoring optical waveguide has a width that, as compared with the width at a starting point side, is formed to increase as the monitoring optical waveguide approaches the groove. | ||||||
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