| 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 | OPTICAL DEVICE HAVING OPTICAL MODULATORS | US13898852 | 2013-05-21 | US20130251303A1 | 2013-09-26 | Masaki SUGIYAMA |
| An optical device includes first and second optical modulators formed on a substrate having electro-optical effect. The first optical modulator includes a first optical waveguide; a first signal electrode configured to provide a first data signal for the first optical waveguide; and a first DC electrode, arranged at an output side of the first signal electrode, and configured to provide first DC voltage for the first optical waveguide. The second optical modulator includes a second optical waveguide; a second signal electrode configured to provide a second data signal for the second optical waveguide; and a second DC electrode provided, arranged at an input side of the second signal electrode, and configured to provide second DC voltage for the second optical waveguide. Input portions of the first and second signal electrodes are arranged at a same side edge of the substrate. | ||||||
| 62 | DUAL POLARIZATION QUADRATURE PHASE SHIFT KEYING OPTICAL MODULATOR | US13765765 | 2013-02-13 | US20130216175A1 | 2013-08-22 | Yutaka ONISHI |
| A DP QPSK optical modulator includes an input port; an optical branching unit; an optical modulation unit having first through fourth Mach-Zehnder interferometers; a first phase-change unit connected to the third Mach-Zehnder interferometer; a second phase-change unit connected to the fourth Mach-Zehnder interferometer; an optical multiplexer; and a multimode interference coupler including a multimode interference waveguide, first through third input ports, and an output port having a taper-shaped waveguide. The first Mach-Zehnder interferometer is connected to the first input port. One end of the optical multiplexer is connected to the second Mach-Zehnder interferometer and the third Mach-Zehnder interferometer via the first phase change unit. The other end of the optical multiplexer is connected to the second input port. The fourth Mach-Zehnder interferometer is connected to the third input port via the second phase-change unit. | ||||||
| 63 | Arrayed Optical Device Block for Photonic Integration | US13364937 | 2012-02-02 | US20130202312A1 | 2013-08-08 | Xiao A. Shen; Yu Sheng Bai |
| Included is an apparatus comprising a first circuit component comprising a plurality of optical devices each having an optical input port and an optical output port. All of the optical input ports and all of the optical output ports are positioned on a first side of the circuit component. Also included is a circuit component comprising a plurality of optical devices. The circuit component further comprises a plurality of electrical inputs coupled to the optical devices and positioned on a first side of the circuit component. The circuit component also comprises a plurality of optical input ports coupled to the optical devices and positioned on a second side of the circuit component that does not share any edges with the first side. | ||||||
| 64 | OPTICAL MODULATOR | US13754183 | 2013-01-30 | US20130195394A1 | 2013-08-01 | Youichi HOSOKAWA; Kaoru HIGUMA; Tetsuya KAWANISHI; Atsushi KANNO |
| The optical modulator includes optical modulation units. The plurality of optical modulation units is disposed in parallel on the same substrate. One input waveguide branches off to be connected to the Mach-Zehnder type optical waveguide of each optical modulation unit, and an entire optical waveguide is formed such that outputs from the Mach-Zehnder type optical waveguides are combined and output through one output waveguide. A modulation signal with the same intensity is applied to a modulation electrode of each optical modulation unit. In at least some of the optical modulation units, mechanical structures including the modulation electrodes of the optical modulation units are configured such that an amplitude value of an optical output modulated by the modulation signal of the optical modulation unit is ½n (n is a natural number) of a maximum amplitude value in other optical modulation units. | ||||||
| 65 | LIQUID CRYSTAL PANEL AND SPACER STRUCTURE THEREOF | US13264145 | 2011-08-04 | US20130010238A1 | 2013-01-10 | Ya-hui Chen; Tsunglung Chang |
| The present invention discloses a liquid crystal panel and a spacer structure thereof. The liquid crystal panel has: an array substrate, a color filter substrate, and a plurality of spacer structures sandwiched between the array substrate and the color filter substrate. Each of the spacer structures has: a first spacer disposed on an upper surface of the array substrate; and a second spacer disposed on a lower surface of the color filter substrate. The second spacer is correspondingly abutted against the first spacer. Thus, when the liquid crystal panel is impacted by external force, the first spacer and the second spacer can keep a tight abutment therebetween, so as to ensure the display quality of the liquid crystal panel. | ||||||
| 66 | Device for generating polarization-entangled photons | US12252891 | 2008-10-16 | US08244082B2 | 2012-08-14 | Christoph Pacher; Norman Finger |
| A device for generating polarization-entangled photons by means of parametric down-conversion, comprising a waveguide structure formed in a substrate of an optically non-linear material with periodically poled regions, wherein, when in operation, pump photons can be supplied from a pump laser to the waveguide structure, and wherein a separating means for separating the entangled photons for the separate further conduction of signal photons and idler photons, respectively, is arranged to follow the waveguide structure. | ||||||
| 67 | Optical modulator | US12636522 | 2009-12-11 | US08135242B2 | 2012-03-13 | Masaki Sugiyama |
| In an optical modulator, an intermediate substrate is provided separate from a main substrate on which a plurality of optical modulation sections are provided in parallel, and signal lines corresponding to the optical modulation sections are formed on the intermediate substrate. The signal lines are connected to signal electrodes corresponding to the main substrate, and have electrical lengths that are different from each other. Furthermore, the propagation loss per unit length in the signal lines on the intermediate substrate is preferably less than the propagation loss per unit length in the signal electrodes on the main substrate. As a result, even if a plurality of optical modulation sections are arranged in parallel, and the input ends of the signal electrodes of the optical modulation sections are arranged side by side on one side face of the substrate, synchronized modulation light of a low noise at a wide band width can be output from the optical modulation sections. | ||||||
| 68 | Method for Evaluating Characteristics of Optical Modulator Having Mach-Zehnder Interferometers | US12921833 | 2008-03-13 | US20110176141A1 | 2011-07-21 | Tetsuya Kawanishi; Shinya Nakajima; Satoshi Shinada |
| 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 includes a plurality of MZ interferometers, the 0-degree component contains a signal derived from an MZ interferometer other than the MZ interferometers for evaluating the characteristic. For this, it is impossible to accurately evaluate the characteristic of the MZ interferometers. The present invention does not use the 0-degree 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 0-degree component. | ||||||
| 69 | Method and system for generating flat or arbitrary shaped optical frequency combs | US11763868 | 2007-06-15 | US07953303B2 | 2011-05-31 | Ioan L. Gheorma; Ganesh K. Gopalakrishnan |
| A method and system for generating an optical frequency comb that employs a dual parallel modulator that inputs an optical signal at a center frequency of a desired optical frequency comb and an RF signal at a frequency corresponding to a desired spacing of the teeth of the optical frequency comb. The amplitudes of the teeth of the optical frequency comb are controlled by controlling the amplitudes of the two RF inputs to the DPM and the phase shift between the two RF inputs. In some embodiments, the three bias voltages for the three interferometers in the DPM are also controlled. In some embodiments, all three interferometers are all biased at the same point (e.g., quadrature). Preferably, but not necessarily, the three interferometers of the DPM are formed on a single substrate. | ||||||
| 70 | OPTICAL MODULATOR | US12636522 | 2009-12-11 | US20100202723A1 | 2010-08-12 | Masaki Sugiyama |
| In an optical modulator, an intermediate substrate is provided separate from a main substrate on which a plurality of optical modulation sections are provided in parallel, and signal lines corresponding to the optical modulation sections are formed on the intermediate substrate. The signal lines are connected to signal electrodes corresponding to the main substrate, and have electrical lengths that are different from each other. Furthermore, the propagation loss per unit length in the signal lines on the intermediate substrate is preferably less than the propagation loss per unit length in the signal electrodes on the main substrate. As a result, even if a plurality of optical modulation sections are arranged in parallel, and the input ends of the signal electrodes of the optical modulation sections are arranged side by side on one side face of the substrate, synchronized modulation light of a low noise at a wide band width can be output from the optical modulation sections. | ||||||
| 71 | Device for Generating Polarization-Entangled Photons | US12252891 | 2008-10-16 | US20090103736A1 | 2009-04-23 | Christoph Pacher; Norman Finger |
| A device for generating polarization-entangled photons by means of parametric down-conversion, comprising a waveguide structure formed in a substrate of an optically non-linear material with periodically poled regions, wherein, when in operation, pump photons can be supplied from a pump laser to the waveguide structure, and wherein a separating means for separating the entangled photons for the separate further conduction of signal photons and idler photons, respectively, is arranged to follow the waveguide structure. | ||||||
| 72 | Optical multilayer disk, multiwavelength light source, and optical system using them | US09694625 | 2000-10-23 | US07065035B1 | 2006-06-20 | Kiminori Mizuuchi; Kazuhisa Yamamoto; Rie Kojima; Noboru Yamada |
| 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. | ||||||
| 73 | Structure of optical intensity modulator array with block waveguide | US10108726 | 2002-03-28 | US20030016929A1 | 2003-01-23 | Jung-Hwan Cho |
| 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. | ||||||
| 74 | Method of linearizing the transmission function of modulator | US992100 | 1992-12-17 | US5363230A | 1994-11-08 | Anders G. Djupsjobacka |
| A method of linearizing a modulator (1) having two parallel-coupled sub-modulators (2, 3). The complete transmission function of the modulator includes parameters which relate to power division (A, 1-A) of a non-modulated carrier wave (P.sub.in) and a relationship (B) between the activation degree of the sub-modulators (2, 3). The transmission function is simplified and series-expanded with two higher-order terms, each having a respective coefficient. An expression for intermodulation distortion is calculated with the aid of the series-expansion and with control signals (V1, V2) having two or three frequencies. The signs of the coefficients are determined so that the terms having these coefficients will mutually counteract their respective distortion contributions, and limited search regions for the parameters (A, B) are calculated with the aid of the sign-determined coefficients. In accordance with secondary conditions for high electrooptic efficiency and pronounced modulation depth, the distortion level of the modulator is calculated with the aid of the complete transmission function in the search regions. | ||||||
| 75 | 液晶表示装置 | JP2016087284 | 2016-12-14 | JPWO2017104720A1 | 2018-10-04 | 吉見 裕之; 山中 俊介 |
| 光源ユニットと、後面側偏光子と、液晶セルと、前面側偏光子と、視野角拡大フィルムとをこの順に備える、液晶表示装置。又は、光源ユニットと、後面側偏光子と、液晶セルと、視野角拡大フィルムと、前面側偏光子とをこの順に備える、液晶表示装置。液晶表示装置はさらに、任意に、前記後面側偏光子と前記液晶セルとの間に設けられた後面側光学フィルム、及び前記前面側偏光子と前記液晶セル又は前記視野角拡大フィルムとの間に設けられた前面側光学フィルムをさらに備える。 | ||||||
| 76 | 光モジュール及び送信装置 | JP2014143417 | 2014-07-11 | JP6229607B2 | 2017-11-15 | 杉山 昌樹; 久保田 嘉伸 |
| 77 | 光モジュール及び送信装置 | JP2014143417 | 2014-07-11 | JP2016020927A | 2016-02-04 | 杉山 昌樹; 久保田 嘉伸 |
| 【課題】フレキシブル基板とコネクタの接続部分において、インピーダンス整合を取ること。 【解決手段】光モジュールは、ドライバと、光変調器と、ドライバ又は光変調器と電気的に接続し、電気信号の入出力用端子を備えるコネクタと、コネクタに接続し、ドライバによって生成された電気信号を光変調器へ伝送する可撓性のフレキシブル基板とを有し、フレキシブル基板は、コネクタに接続する端部において、入出力用端子に対向する第1の面に、電気信号を伝送する信号用配線パターンと信号用配線パターンに沿った接地用配線パターンとを有し、第1の面とは異なる第2の面に、第2の面を部分的に覆う接地電極であって、信号用配線パターンまでの電気的な距離が信号用配線パターンと接地用配線パターンの間の電気的な距離よりも小さい接地電極を有する。 【選択図】図3 |
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| 78 | DP−QPSK光変調器 | JP2012035306 | 2012-02-21 | JP5834994B2 | 2015-12-24 | 大西 裕 |
| 79 | 電子ペーパーおよびその製造方法 | JP2012514691 | 2011-04-14 | JP5673678B2 | 2015-02-18 | 平野 浩一; 浩一 平野; 昌己 中川; 中谷 誠一; 誠一 中谷 |
| 80 | Optical modulator | JP2013017746 | 2013-01-31 | JP5573985B1 | 2014-08-20 | 美紀 岡村; 徳隆 原 |
| 【課題】２つの変調部から出力される光の光路長の差を補正し、光信号の品質を好適に維持することを可能とする。
【解決手段】光変調器１では、基板４１における出力導波路４２ｂ（第１の光路）の光路長Ｎ１よりも出力導波路４２ｃ（第２の光路）の光路長Ｎ２が長い（Ｎ１＜Ｎ２）構成とすることで、偏波合成素子７２の第１の面７２ａと第２の面７２ｂとの間における光路長の長さの差（ｍ１−ｍ２）を原因として２つの変調部から出力される光の光路長が互いに異なる場合であっても、２つの変調部から出力される光の合波点Ｘまでの光路長（Ｌ１，Ｌ２）の差を少なくするように調整することができ、光変調器１から出射される光信号の品質を好適に維持することができる。 【選択図】図４ |
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