| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | RUBIDIUM TITANYL ARSENATE-SILVER GALLIUM SELENIDE TANDEM OPTICAL PARAMETRIC OSCILLATOR | EP03707410.1 | 2003-01-15 | EP1468328A2 | 2004-10-20 | FUKUMOTO, Joseph, M. |
| An arrangement (10) for efficiently generating tunable pulsed laser output at 8-12 microns. The arrangement (10) includes a laser (12), a first optical parametric oscillator (14) including an x-cut rubidium titanyl arsenate crystal (20) and a second optical parametric oscillator (22) including a silver gallium selenide crystal (20). Energy from the laser (12) at a first wavelength is shifted by the crystal (20) and output at a second wavelength. The second wavelength results from a secondary process induced by a primary emission of energy at a third wavelength, the third wavelength resulting from a primary process generated from the first wavelength in the crystal. Mirror coatings are applied on the reflective elements (16 and/or 18) for containing the primary emission and enhancing the secondary process. The second optical parametric oscillator (22) then shifts the energy output by the first OPO (14) at the second wavelength to the desired fourth wavelength. | ||||||
| 22 | MONOLITHIC SERIAL OPTICAL PARAMETRIC OSCILLATOR | EP00990236.2 | 2000-12-18 | EP1221070A2 | 2002-07-10 | FUKUMOTO, Joseph, M. |
| An arrangement (10) for efficiently shifting energy received at a first wavelength and outputting the shifted energy at a second wavelength. The arrangement (10) includes a laser (12) and an optical parametric oscillator (14) of unique design. The oscillator (14) is constructed with an energy shifting crystal (20) and first and second reflective elements (16) and (18) disposed on either side thereof. Light from the laser (12) at a fundamental frequency is shifted by the crystal and output at a second wavelength. The second wavelength is a primary emission and induces a secondary emission of energy in the crystal. A novel feature of the invention is a coating applied on the reflective elements (16 and/or 18) for minimizing the secondary emission. This constrains the energy to be output by the arrangement (10) at the wavelength of the desired primary emission. In the alternative, the arrangement (10) may be optimized to output one or more of the secondary emissions. | ||||||
| 23 | SERIAL OPTICAL PARAMETRIC OSCILLATOR | EP01927037.0 | 2001-04-16 | EP1196817A2 | 2002-04-17 | FUKUMOTO, Joseph, M. |
| A chemical sensing system and method. The system (10) includes a transmitter (20) having a laser (200) for providing a collimated beam of electromagnetic energy at a first frequency and a Q switch (230) in optical alignment with the beam. The system further inlcudes a crystal for shifting the frequency of the beam from the first frequency to a second frequency. A mechanism is included for shifting the beam from the second frequency to a third frequency in the range of 8-12 microns. Ideally, the input beam is provided by a neodymium-YAG laser and the Q switch is a passive Q switch. The crystal is x-cut potassium titanyl arsenate. The system includes a mechanism for switching the polarization state of the second beam and providing third and fourth beams therefrom. The third beam has a first polarizaion and the fourth beam has a second polarization. The second polyrization is orthogonal relative to the first polarization. The mechanism for shifting the beam from the second frequency to the third frequency includes first and seccond optical parametric oscillators (250 and 271), each optical parametric oscillator including a cadmium selenide crystal. The frequency shifted third and fourth beams are combined to provide an output beam in the range of 8-12 microns. The output beam is transmitted and a return signal therefrom is detected by a receiver in the illustrative chemical sensing application. | ||||||
| 24 | A supercontinuum source | EP14155841.1 | 2014-02-19 | EP2770370B1 | 2018-08-29 | Clowes, John Redvers; Devine, Adam; Grudinin, Anatoly Borisovich |
| A supercontinuum optical pulse source provides a combined supercontinuum. The supercontinuum optical pulse source comprises one or more seed pulse sources (13), and first and second optical amplifiers (7) arranged along first and second respective optical paths. The first and second optical amplifiers are configured to amplify one or more optical signals generated by said one or more seed pulse sources. The supercontinuum optical pulse source further comprises a first microstructured light-guiding member (9) arranged along the first optical path and configured to generate supercontinuum light responsive to an optical signal propagating along said first optical path, and a second microstructured light-guiding member (9) arranged along the second optical path and configured to generate supercontinuum light responsive to an optical signal propagating along said second optical path. The supercontinuum optical pulse source further comprises a supercontinuum-combining member (5) to combine supercontinuum generated in at least the first and second microstructured light-guiding members to form a combined supercontinuum. The supercontinuum-combining member comprises an output fibre, wherein the output fibre comprises a silica-based multimode optical fibre supporting a plurality of spatial modes at one or more wavelengths of the combined supercontinuum. | ||||||
| 25 | A supercontinuum source | EP14155841.1 | 2014-02-19 | EP2770370A2 | 2014-08-27 | Clowes, John Redvers; Devine, Adam; Grudinin, Anatoly Borisovich |
A supercontinuum optical pulse source provides a combined supercontinuum. The supercontinuum optical pulse source comprises one or more seed pulse sources (13), and first and second optical amplifiers (7) arranged along first and second respective optical paths. The first and second optical amplifiers are configured to amplify one or more optical signals generated by said one or more seed pulse sources. The supercontinuum optical pulse source further comprises a first microstructured light-guiding member (9) arranged along the first optical path and configured to generate supercontinuum light responsive to an optical signal propagating along said first optical path, and a second microstructured light-guiding member (9) arranged along the second optical path and configured to generate supercontinuum light responsive to an optical signal propagating along said second optical path. The supercontinuum optical pulse source further comprises a supercontinuum-combining member (5) to combine supercontinuum generated in at least the first and second microstructured light-guiding members to form a combined supercontinuum. The supercontinuum-combining member comprises an output fibre, wherein the output fibre comprises a silica-based multimode optical fibre supporting a plurality of spatial modes at one or more wavelengths of the combined supercontinuum.
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| 26 | Method of evaluating the optical characteristic of a Mach-Zehnder optical modulator | EP10187187.9 | 2008-03-13 | EP2309323A3 | 2011-04-20 | Kawanishi, Tetsuya; Nakajima, Shinya; Shinada, Satoshi |
PROBLEMS To provide a method for evaluating characteristics of MZ interferometers in an optical modulator having a plurality of MZ interferometers. MEANS FOR SOLVING PROBLEMS When an optical modulator (1) includes a plurality of MZ interferometers (2,3), the output light contains a signal component at the modulation frequency and sideband components at higher orders. It is impossible to accurately evaluate the characteristic of the MZ interferometers on the basis of the component at the modulation frequency (zero-order). The present invention does not use the zero-order component normally having the highest intensity. That is, the characteristic of the MZ interferometers are evaluated by using a side band intensity of the component other than the zero-order component.
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| 27 | MULTI-COMPONENT WAVELENGTH CONVERSION DEVICES AND LASERS INCORPORATING THE SAME | EP08844349.4 | 2008-10-23 | EP2208263A1 | 2010-07-21 | GOLLIER, Jacques; HARRIS, James M |
| According to one embodiment of the present invention, a frequency-converted laser source is provided wherein the wavelength conversion device comprises a plurality of waveguide components comprising respective input faces positioned in an effective focal field of the laser source. Individual ones of the waveguide components contribute different elements to a set of distinct wavelength conversion properties, defining a set of distinct wavelength conversion properties attributable to the waveguide components. The set of distinct wavelength conversion properties comprises properties representing phase matching wavelengths of the waveguide components, spectral widths of the waveguide components, conversion efficiency of the waveguide components, or combinations thereof. Additional embodiments are disclosed and claimed. | ||||||
| 28 | Einrichtung zur Erzeugung von polarisationsverschränkten Photonen | EP08450160.0 | 2008-10-17 | EP2051138B1 | 2010-06-02 | Pacher, Christoph; Finger, Norman |
| 29 | Multiwavelength light source and optical system using it | EP05018443.1 | 2000-10-24 | EP1635213A3 | 2006-11-22 | Mizuuchi, Kiminori; Yamamoto, Kazuhisa; Kojima, Rie; Yamada, Noboru |
When a wavelength of a first laser beam with which a first recording medium including a first recording layer is recorded and reproduced is indicated as λ1 (nm), a wavelength of a second laser beam with which a second recording medium including a second recording layer is recorded and reproduced as λ2 (nm), the relationship between the wavelength λ1 and the wavelength λ2 is set to be expressed by 10 ≦ |λ1 - λ2| ≦ 120. The first recording layer has a light absorptance ratio of at least 1.0 with respect to the wavelength λ1. The light transmittance of the first recording medium with respect to the wavelength λ2 is set to be at least 30 in both the cases where the recording layer is in a crystal state and in an amorphous state. In order to record and reproduce the optical multilayer disk with the above-mentioned characteristics, a multiwavelength light source with the following configuration is used. Wavelengths of fundamental waves with different wavelengths from injection parts formed at one end of a plurality of optical waveguides, which satisfy phase matching conditions different from one another and are formed in the vicinity of the surface of a substrate, are converted simultaneously, and the first and second laser beams are emitted from emission parts formed at substantially the same position at the other end of the optical waveguides. This enables an optimum optical system for high density recording and reproduction to be obtained.
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| 30 | Optical multilayer disk, multiwavelength light source, and optical system using them | EP00309359.8 | 2000-10-24 | EP1096484B1 | 2006-06-07 | Mizuuchi, Kiminori; Yamamoto, Kazuhisa; Kojima, Rie; Yamada, Noboru |
| When a wavelength of a first laser beam (23) with which a first recording medium (17) including a first recording layer is recorded and reproduced is indicated as lambda 1 (nm), a wavelength of a second laser beam (24) with which a second recording medium (18) including a second recording layer is recorded and reproduced as lambda 2 (nm), the relationship between the wavelength lambda 1 and the wavelength lambda 2 is set to be expressed by 10 | ||||||
| 31 | Optical multilayer disk, multiwavelength light source, and optical system using them | EP05018442.3 | 2000-10-24 | EP1602968A2 | 2005-12-07 | Mizuuchi, Kiminori; Yamamoto, Kazuhisa; Kojima, Rie; Yamada, Noboru |
When a wavelength of a first laser beam with which a first recording medium including a first recording layer is recorded and reproduced is indicated as λ1 (nm), a wavelength of a second laser beam with which a second recording medium including a second recording layer is recorded and reproduced as λ2 (nm), the relationship between the wavelength λ1 and the wavelength λ2 is set to be expressed by 10 ≦ |λ1 - λ2| ≦ 120. The first recording layer has a light absorptance ratio of at least 1.0 with respect to the wavelength λ1. The light transmittance of the first recording medium with respect to the wavelength λ2 is set to be at least 30 in both the cases where the recording layer is in a crystal state and in an amorphous state. In order to record and reproduce the optical multilayer disk with the above-mentioned characteristics, a multiwavelength light source with the following configuration is used. Wavelengths of fundamental waves with different wavelengths from injection parts (64-1,64-2) formed at one end of a plurality of optical waveguides (62-1,62-2), which satisfy phase matching conditions different from one another and are formed in the vicinity of the surface of a substrate (61), are converted simultaneously, and the first and second laser beams are emitted from emission parts (66) formed at substantially the same position at the other end of the optical waveguides. This enables an optimum optical system for high density recording and reproduction to be obtained. |
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| 32 | Transmitter with dual optical parametric oscillators and method for sensing atmospheric contaminants using the transmitter | EP01927037.0 | 2001-04-16 | EP1196817B1 | 2005-05-11 | FUKUMOTO, Joseph, M. |
| A chemical sensing system and method. The system (10) includes a transmitter (20) having a laser (200) for providing a collimated beam of electromagnetic energy at a first frequency and a Q switch (230) in optical alignment with the beam. The system further inlcudes a crystal for shifting the frequency of the beam from the first frequency to a second frequency. A mechanism is included for shifting the beam from the second frequency to a third frequency in the range of 8-12 microns. Ideally, the input beam is provided by a neodymium-YAG laser and the Q switch is a passive Q switch. The crystal is x-cut potassium titanyl arsenate. The system includes a mechanism for switching the polarization state of the second beam and providing third and fourth beams therefrom. The third beam has a first polarizaion and the fourth beam has a second polarization. The second polyrization is orthogonal relative to the first polarization. The mechanism for shifting the beam from the second frequency to the third frequency includes first and seccond optical parametric oscillators (250 and 271), each optical parametric oscillator including a cadmium selenide crystal. The frequency shifted third and fourth beams are combined to provide an output beam in the range of 8-12 microns. The output beam is transmitted and a return signal therefrom is detected by a receiver in the illustrative chemical sensing application. | ||||||
| 33 | 광 도파관 구조 | KR1020137028901 | 2012-03-29 | KR1020130140859A | 2013-12-24 | 코브린스키,마우로제이.; 블록,브루스에이.; 창,피터엘. |
| Embodiments of the invention describe a multi-segment optical waveguide that enables an optical modulator to be low-power and athermal by decreasing the device length needed for a given waveguide length. Embodiments of the invention describe an optical waveguide that is folded onto itself, and thus includes at least two sections. Thus, embodiments of the invention may decrease the device size of a modulator by at least around a factor of two if the device is folded twofold (device size may be further reduced if the modulator is folded threefold, four-fold, five-fold, etc.). Embodiments of the invention further enable the electrode length required to create the desired electro-optic effect for the multi-segment optical waveguide to be reduced. In embodiments of the invention, certain electrodes may be shared amongst the different segments of the waveguide, thereby reducing the power requirement and capacitance of a device having a waveguide of a given length. | ||||||
| 34 | 다층광 디스크, 다파장 광원 및 이들을 이용한 광학 시스템 | KR1020000063016 | 2000-10-25 | KR100436023B1 | 2004-06-12 | 미즈우치기미노리; 야마모토가즈히사; 고지마리에; 야마다노보루 |
| 제1 기록층을 포함하는 제1 기록 매체에 기록 재생하는 제1 레이저 광의 파장을 λ1, 제2 기록층을 포함하는 제2 기록 매체에 기록 재생하는 제2 레이저 광의 파장을 λ2로 하였을 때, λ1과 λ2를 10≤｜λ1-λ2｜≤120이 되는 관계로 함으로써, 제1 기록층을 파장 λ1에 대해서 1.0 이상의 광 흡수비로 하고, 제1 기록 매체를 파장 λ2에 대해서 기록층 결정상태 및 비정질 상태에서 함께 30이상의 투과율로 한 다층광 디스크에 대해서 기록 재생을 행하기 위해, 기판의 표면 근방에 형성되어 서로 다른 위상 정합 조건을 만족하는 다수의 광 도파로(導波路)의 일단에 형성된 입사부로부터의 다른 파장의 기본파를 동시에 파장 변환하고, 광 도파로의 타단의 대략 동일 위치에 형성된 출사부로부터 제1 및 제2 레이저 광을 출사하는 다파장 광원을 이용한다. 이것에 의해, 고밀도 기록 및 재생에 최적한 광학 시스템을 구축할 수 있다. | ||||||
| 35 | 블럭 광도파로가 제공된 광강도 변조기 열 구조 | KR1020010044008 | 2001-07-21 | KR100389823B1 | 2003-07-02 | 조정환 |
| A planar lightguide circuit with the optical intensity modulator array structure capable of generating less influence upon the adjacent channels, by inserting a block optical waveguide between optical channels formed in a planar lightguide circuit chip having the optical intensity modulator array. The circuit is provided with a plurality of channel arrays each including an input waveguide, a waveguide modulation region connected to the input waveguide, for modulating an input light wave, an output waveguide connected to the waveguide modulation region, for outputting the modulated light wave, and a modulating unit for modulating the light wave that is disposed in the vicinity of the waveguide modulation region. The circuit chip further includes at least one first channel having a first optical intensity modulator provided with said modulating means, at least one second channel having a second optical intensity modulator provided with the modulating unit, and at least one block waveguide arranged between the first and second channels, for blocking the mutual interference between the light waves in the adjacent channels. | ||||||
| 36 | センサ及びセンサ付き表示装置 | JP2016056966 | 2016-03-22 | JP2017173976A | 2017-09-28 | 上原 利範; 水橋 比呂志; 征矢 年央 |
| 【課題】検出精度に優れたセンサ及びセンサ付き表示装置を提供する。 【解決手段】センサ付き表示装置は、走査線と、信号線Sと、画素スイッチと、画素電極PEと、第1共通電極と、検出電極DEと、カレントミラー回路CUと、積分器INと、を備える。カレントミラー回路CUは、第1トランジスタTR1と、第2トランジスタTR2と、を有する。積分器INは、反転入力端子T1及び非反転入力端子T2を含む演算増幅器AMPと、コンデンサCONと、を有する。 【選択図】図8 |
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| 37 | 光変調器及び光変調方法 | JP2013548659 | 2013-09-27 | JPWO2014051096A1 | 2016-08-25 | 孝知 伊藤; 篠崎 稔; 稔 篠崎; 志展 矢澤 |
| 第一生成部及び第二生成部を備えた生成部であって、前記第一生成部が、所定の位相に変調され、第一の光強度を有する位相変調光を生成するように構成され、前記第二生成部が、所定の位相に変調され、前記第一の光強度とは異なる第二の光強度を有する位相変調光を生成するように構成された、前記生成部と、前記生成部によって生成された前記2つの位相変調光を互いに垂直な偏光方向にすると共に、前記2つの位相変調光を偏波合成して、変調信号光を出力するように構成された光合成部とを備える光変調器。 | ||||||
| 38 | 光送信装置 | JP2014044603 | 2014-03-07 | JP2015169795A | 2015-09-28 | 丸山 眞示; 佐々木 誠美; 柴田 康平; 久保 輝洋; 竹内 信太郎; 加藤 大織; 田中 剛人 |
| 【課題】信号光又はモニタ光の出射方向に沿った部品の位置関係に起因する装置の大型化を抑えること。 【解決手段】光送信装置は、基板と、複数の光変調器と、複数の導波路と、複数のレンズと、保持部材とを備えた。複数の光変調器は、基板の幅方向に沿って該基板に並列に設けられ、光を変調する。複数の導波路は、基板上に形成され、複数の光変調器により光が変調されて得られる複数の変調光のうち少なくとも一つの変調光である信号光と、信号光以外の他の変調光であるモニタ光とを導波する。複数のレンズは、複数の導波路から出射される信号光及びモニタ光をコリメートする。保持部材は、複数の導波路のうち少なくとも一つの導波路の光軸から複数のレンズのうち少なくとも一つのレンズの光軸が所定方向にずれた状態で該複数のレンズを保持する。これにより、保持部材は、該複数のレンズから信号光とモニタ光とを異方向に出射させる。 【選択図】図2 |
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| 39 | 光変調器 | JP2012017673 | 2012-01-31 | JP5773440B2 | 2015-09-02 | 細川 洋一; 日隈 薫; 川西 哲也; 菅野 敦史 |
| 40 | 立体表示装置 | JP2011234318 | 2011-10-25 | JP2015004698A | 2015-01-08 | USUKURA NARU |
| 【課題】広い視位置において立体視が可能な、立体表示装置の構成を得る。【解決手段】立体表示装置1は、互いに視差を有する複数の視点の画像を規則的に並べて表示する表示パネル14と、前記表示パネル14の前面に配置され、電圧制御により仮想的なレンチキュラレンズを前記表示パネル14の画像に対応して一定の間隔で整列して形成する光線変換素子11と、前記表示パネル14および前記光線変換素子11を制御する制御部とを備える。前記制御部は、前記表示パネル14と観察者との距離に応じて、前記光線変換素子11が形成する前記仮想的なレンチキュラレンズの焦点距離を変更する。【選択図】図1 | ||||||
