| 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 | Displays employing multimode optical fiber and low-speckle light sources | US14629624 | 2015-02-24 | US09229307B2 | 2016-01-05 | Jeffrey G Manni; Joseph W Goodman |
| An apparatus comprising a visible light source(s), multimode optical fiber(s), light coupler(s), an optional spatial light modulator(s), and an optional projection lens(es). The light source has a 1/e half-width emission bandwidth. The light coupler couples the light source to the multimode optical fiber(s) such that objective speckle contrast is reduced. The multimode optical fiber(s) may pass light from the coupler to an optional spatial light modulator. The spatial light modulator may modulate the light to form an image. The projection lens may transfer light onto an image plane or to illuminate objects. The objective speckle contrast at the end of the multimode fiber in combination with the projection lens diameter (if employed) and wavelength diversity may result in viewed images at the viewer's eye, or other detector, exhibiting speckle contrast that may be 1% or less. | ||||||
| 22 | INTER-MODE LIGHT SWITCH | US14634197 | 2015-02-27 | US20150168652A1 | 2015-06-18 | Kiichi HAMAMOTO |
| Provided is an optical mode switch that can effect a more compact optical switch. The optical mode switch (100) is provided with: a single input port (1); a single output port (2); two waveguides (10) provided in parallel between the input port (1) and the output port (2); and a refractive index altering means (8) that alters the refractive index of the waveguides. Any given mode light input to the input port (1) is output as any given mode light from the output port (2) in accordance with the refractive index altered by the refractive index altering means (8). | ||||||
| 23 | Optical waveguide device | US13583593 | 2011-03-09 | US08923658B2 | 2014-12-30 | Yasuhiro Ishikawa; Katsutoshi Kondou; Norikazu Miyazaki; Satoshi Oikawa |
| An optical waveguide device having a Mach-Zehnder type waveguide formed on a substrate is provided in which a slope of two waveguides input to an optical coupler on an output side of the Mach-Zehnder type waveguide is 0 degrees, a waveguide of the optical coupler after being coupled by the optical coupler is a multi-mode waveguide, and the waveguide which is output from the optical coupler is a three-branched waveguide including an output main waveguide and two output sub waveguides interposing the output main waveguide therebetween. | ||||||
| 24 | OPTICAL MODE CONVERSION BY NONLINEAR EFFECTS | US14362456 | 2012-12-06 | US20140334766A1 | 2014-11-13 | Lars Gruner-Nielsen; Dan P Jakobsen; Martin E.V. Pedersen; Chris Xu; Ji Cheng |
| Embodiments of the present invention generally relate to optical mode conversion by nonlinear effects. More specifically, embodiments of the present invention relate to nonlinear mode conversion utilizing intermodal four-wave mixing to convert light between modes having different wavelengths for complex applications. In one embodiment of the present invention, a fiber comprises an input end for receiving light in a first mode at a first wavelength, and an output end for outputting light in a desired second mode at a desired second wavelength, wherein the first wavelength and the second wavelength are not the same. In many embodiments, the fiber comprises a higher-order mode fiber. | ||||||
| 25 | Ultra low loss waveguide for broadband Terahertz radiation | US12434454 | 2009-05-01 | US08259022B2 | 2012-09-04 | Rajind Mendis; Daniel M. Mittleman |
| An apparatus comprising a parallel plate waveguide (PPWG) comprising two plates separated by a distance that supports a multimode wave, and a transmitter configured to emit a wave having a frequency from about one hundred Gigahertz (GHz) to about ten terahertz (THz) and to couple to one mode of the PPWG. Also disclosed is an apparatus comprising two plates substantially parallel to one another and separated by at least about five millimeters (mm), and an antenna coupled to the two plates and configured to transmit or receive a wave having a frequency from about one hundred GHz to about ten THz. Disclosed is a method comprising polarizing an electromagnetic beam in the first transverse electric (TE1) mode with respect to a PPWG comprising two plates, adjusting the diameter of the electromagnetic beam based on the separation between the plates, and sending the electromagnetic beam into the PPWG. | ||||||
| 26 | SEMICONDUCTOR OPTICAL MODULATOR, SEMICONDUCTOR OPTICAL INTEGRATED DEVICE, AND METHOD OF MANUFACTURING THE SAME | US13254336 | 2010-03-05 | US20110317956A1 | 2011-12-29 | Shinya Sudo; Tomoaki Kato; Kenji Sato; Takao Morimoto |
| The invention provides a semiconductor optical modulator including a two-step mesa optical waveguide having a first clad layer (101); a mesa-like core layer (102) formed over the first clad layer (101); and a second clad layer (103) formed into a mesa shape over the core layer (102), and having a mesa width smaller than that of the core layer (102). The two-step mesa optical waveguide includes a multi-mode optical waveguide region to which an electric field is applied or into which an electric current is injected, and a single-mode optical waveguide region to which the electric field is not applied and into which the electric current is not injected. When the mesa width of the core layer in the multi-mode optical waveguide region is defined as Wmesa1, and the mesa width of the core layer in the single-mode optical waveguide region is defined as Wmesa2, Wmesa1>Wmesa2 is satisfied. | ||||||
| 27 | Ultra Low Loss Waveguide for Broadband Terahertz Radiation | US12434454 | 2009-05-01 | US20090273532A1 | 2009-11-05 | Rajind Mendis; Daniel M. Mittleman |
| An apparatus comprising a parallel plate waveguide (PPWG) comprising two plates separated by a distance that supports a multimode wave, and a transmitter configured to emit a wave having a frequency from about one hundred Gigahertz (GHz) to about ten terahertz (THz) and to couple to one mode of the PPWG. Also disclosed is an apparatus comprising two plates substantially parallel to one another and separated by at least about five millimeters (mm), and an antenna coupled to the two plates and configured to transmit or receive a wave having a frequency from about one hundred GHz to about ten THz. Disclosed is a method comprising polarizing an electromagnetic beam in the first transverse electric (TE1) mode with respect to a PPWG comprising two plates, adjusting the diameter of the electromagnetic beam based on the separation between the plates, and sending the electromagnetic beam into the PPWG. | ||||||
| 28 | Systems and methods for all-optical signal regeneration based on free space optics | US11589276 | 2006-10-26 | US20080100846A1 | 2008-05-01 | Sagie Tsadka; Niv Narkiss; Haim Chayet; Shalva Ben-Ezra; Er'el Granot; Reuven Zaibel; Arieh Sher; Shai Tzadok; Nir Shachar |
| System and methods for all-optical signal regeneration based on free space optics are described. In one exemplary embodiment, a method for regenerating an optical signal comprises counter-propagating an input signal and a regenerating signal within an all-optical signal regenerator based on free space optics, where the all-optical signal regenerator based on free space optics comprises a Sagnac loop interferometer, and extracting a regenerated output signal from the Sagnac loop interferometer. In another exemplary embodiment, an all-optical signal regenerator based on free space optics comprises a Sagnac loop interferometer, an optical signal input path coupled to a semiconductor optical amplifier of the Sagnac loop interferometer, a regenerating optical signal path coupled to the semiconductor optical amplifier of the Sagnac loop interferometer, and a regenerated optical output path coupled to the Sagnac loop interferometer. | ||||||
| 29 | Fiber optic switch | US10906676 | 2005-03-01 | US07302128B2 | 2007-11-27 | Barry Grossman; Sachin N. Dekarte |
| A fiber optic switch uses induced periodic variations in a multi-mode optic fiber, to control power loss in the switch and power output. | ||||||
| 30 | POWER FIBER LASER WITH MODE CONVERSION | US10069533 | 2002-03-06 | US20040233940A1 | 2004-11-25 | Jean-Pierre Huignard; Arnaud Brignon |
| A pumped-fiber laser comprising a multimode doped fiber (1) and a holographic spatial mode conversion device (3). | ||||||
| 31 | Intermodal phase difference controller for beam angle modulation in index guided semiconductor devices | US09650675 | 2000-08-30 | US06404793B1 | 2002-06-11 | Scott A. Merritt |
| A novel device and method of beam steering for semiconductor lasers or optical amplifiers is disclosed. The method of the present invention achieves high signal extinction ratios, high speed, low chirp modulation by biasing a multi-lateral mode beam steering section. The device of the present invention comprises an active single vertical and lateral mode optical waveguide, a multi-lateral mode waveguide, and a mode converter. The mode converter efficiently couples output from an active single mode waveguide to two or more modes of a multi-lateral mode waveguide. Two guided modes arrive at a device facet with a particular intermodal phase difference based on initial mode phasing, multi-lateral mode waveguide length and modal dispersion properties, and facet angle. Beam steering is achieved through carrier antiguiding effect by injecting current into the multi-lateral mode waveguide from the mode converter thus changing the intermodal dispersion. Changing the intermodal phase difference changes the direction of beam propagation relative to the device facet, providing enhanced beam steering. | ||||||
| 32 | 偏光子及び偏光変調システム | JP2016541480 | 2013-12-20 | JP2017504062A | 2017-02-02 | トゥ、シン; フ、ホンヤン; リウ、ワンユアン |
| 本発明は、偏光子及び偏光変調システムを提供する。偏光子は少なくとも1つのMMI多モード導波路を含み、各MMI多モード導波路の一方の側は入力導波路に接続され、他方の側は出力導波路に接続されており、MMI多モード導波路の出力導波路が位置する側の端部には可調整部が設けられ、可調整部は出力導波路に接続されており、偏光子は、可調整部に接続されたコントローラを更に含み、コントローラは、可調整部の材料特性を変化させるべく、制御を実行するよう構成され、これにより、出力導波路は複数の異なる偏光状態の複数の光信号を出力する。本発明は調整可能な偏光を提供し、構造は簡単である。 | ||||||
| 33 | モード間光スイッチ | JP2014533016 | 2013-08-27 | JPWO2014034654A1 | 2016-08-08 | 貴一 ▲浜▼本 |
| 光スイッチの小型化を図ることができるモード間光スイッチを提供するものである。モード間光スイッチ100は、単一の入力ポート1と、単一の出力ポート2と、当該入力ポート1及び出力ポート2間に並設される2本の導波路10と、導波路の屈折率を変化させる屈折率変化手段8と、を備え、屈折率変化手段8により変化させた屈折率に応じて、入力ポート1に入力された任意のモード光を出力ポート2から任意のモード光として出力する。【選択図】図1 | ||||||
| 34 | Light modulation device | JP2013504795 | 2012-03-16 | JP5363679B2 | 2013-12-11 | 順悟 近藤; 雄一 岩田; 哲也 江尻 |
| An optical modulation device 1 includes a supporting body 2 including a pair of grooves 2b, 2c and a protrusion 2d between the grooves, a ridge par 6 including a channel type optical wave guide capable of multi mode propagation, a first side plate part 3A formed in a first side of the ridge part 6, a second side plate part 3B formed in a second side of the ridge part, a first adhesive layer 4A adhering the first side plate part 3A and the supporting body 2, a second adhesive layer 4B adhering the second side plate part 3B and the supporting body 2, and a third adhesive layer 4C adhering the ridge part 6 and the protrusion 2d. The device 1 further includes a first electrode 7A provided on a side face 6b of the ridge part on the first groove side, and a side face 3b and an upper face 3c of the first side plate part, and a second electrode 7B provided on a side face 6c of the ridge part 6 in the second groove side, the second groove 2c and a side face 3b and an upper face 3c of the second side plate part 3B. The first electrode 7A and the second electrode 7B apply a modulation voltage modulating light propagating in the channel type optical wave guide. | ||||||
| 35 | 半導体光変調器、半導体光集積素子、およびこれらの製造方法 | JP2011502669 | 2010-03-05 | JPWO2010100946A1 | 2012-09-06 | 信也 須藤; 加藤 友章; 友章 加藤; 佐藤 健二; 健二 佐藤; 卓夫 森本 |
| 本発明は、第一のクラッド層(101)と、第一のクラッド層(101)の上部に形成されたメサ状のコア層(102)と、コア層(102)の上部にメサ状に形成され、コア層(102)のメサ幅よりもメサ幅が狭い第二のクラッド層(103)と、を備える二段メサ型光導波路を有する半導体光変調器である。上記二段メサ型光導波路は、電界を印加または電流を注入する多モード光導波路領域と、電界を印加せず、かつ、電流を注入しない単一モード光導波路領域と、を含む。多モード光導波路領域のコア層のメサ幅をWmesa1とし、単一モード光導波路領域のコア層のメサ幅をWmesa2としたとき、Wmesa1>Wmesa2を満たす。 | ||||||
| 36 | Optical waveguide element | JP2010052516 | 2010-03-10 | JP2011186258A | 2011-09-22 | ISHIKAWA YASUHIRO; KONDO KATSUTOSHI; MIYAZAKI TOKUICHI; OIKAWA SATORU |
| <P>PROBLEM TO BE SOLVED: To provide an optical waveguide element configured to suppress excitation of an unnecessary high-order mode in the multiplexing part of an MZ type waveguide, stabilize output light, and also, efficiently derive radiation mode light. <P>SOLUTION: In the optical waveguide element having a Mach-Zehnder type waveguide formed on a substrate, the inclination of each of the two waveguides 11 and 12 inputted to the multiplexing part 13 at the exit side of the Mach-Zehnder waveguide is 0°, and the multiplexed waveguide in the multiplexing part is a multi-mode waveguide, further, the waveguide output from the multiplexing part is a three-branch waveguide constituted of an output main waveguide 14 and two output sub-waveguides 15 and 16 that sandwich the output main waveguide 14 therebetween. <P>COPYRIGHT: (C)2011,JPO&INPIT | ||||||
| 37 | System and method for all-optical signal regeneration based on free space optics | JP2007276086 | 2007-10-24 | JP2008109666A | 2008-05-08 | TSADKA SAGIE; NARKISS NIV; CHAYET HAIM; BEN-EZRA SHALVA; GRANOT ER EL; ZAIBEL REUVEN; SHER ARIEH; TZADOK SHAI; SHACHAR NIR |
| <P>PROBLEM TO BE SOLVED: To provide a system and a method for all-optical signal discriminating regeneration based on free-space optical communication. <P>SOLUTION: In one embodiment, a method for discriminatingly regenerating an optical signal comprises a step for counter-propagating an input signal and a regenerating signal within an all-optical signal regenerator based on free-space optics, where the all-optical signal regenerator based on free-space optics comprises a step for preparing a Sagnac loop interferometer, and a step for extracting a regenerated output signal from the Sagnac loop interferometer. In another embodiment, an all-optical signal regenerator based on free space optics comprises a Sagnac loop interferometer, an optical signal input path coupled to a semiconductor optical amplifier of the Sagnac loop interferometer, a regenerating optical signal path coupled to the semiconductor optical amplifier of the Sagnac loop interferometer, and a regenerated optical output path coupled to the Sagnac loop interferometer. <P>COPYRIGHT: (C)2008,JPO&INPIT | ||||||
| 38 | LIQUID CRYSTAL DISPLAY DEVICE BEING SWITCHABLE BETWEEN TRANSMISSION MODE AND REFLECTION MODE AND DISPLAY MODULE THEREOF | US15186464 | 2016-06-18 | US20170307914A1 | 2017-10-26 | Xinhui ZHONG |
| The present disclosure provides a liquid crystal display device being switchable between transmission mode and reflection mode and a liquid crystal display module thereof, the liquid crystal display module includes a liquid crystal unit and a transflective driving unit arranged in an overlapped mode; wherein, the transflective driving unit further includes: a first substrate, a first electrode layer, a first liquid layer and a second liquid layer; the first liquid layer in the electric field has the characteristics of the changeable state of spread and contraction and high light reflectance; the state of spread and contraction of the first liquid layer is changed by controlling the voltage of the first electrode layer to achieve the switching between the transmission mode and the reflection mode of the liquid crystal display module. The LCD device has the display effect of high opening, high transmissive and high reflective. | ||||||
| 39 | Supercontinuum Source | US15431730 | 2017-02-13 | US20170288362A1 | 2017-10-05 | John Redvers Clowes; Anatoly Borisovich Grudinin; Adam Devine |
| A supercontinuum optical pulse source provides a combined supercontinuum, and can comprise one or more seed pulse sources; first and second optical amplifiers arranged along first and second respective optical paths, wherein the first and second optical amplifiers are configured to amplify one or more optical signals generated by the one or more seed pulse sources; a first microstructured light-guiding member arranged along the first optical path and configured to generate supercontinuum light responsive to an optical signal propagating along the first optical path; a second microstructured light-guiding member arranged along the second optical path and configured to generate supercontinuum light responsive to an optical signal propagating along the second optical path; a supercontinuum-combining member to combine supercontinuum generated in at least the first and second microstructured light-guiding members to form a combined supercontinuum; wherein 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; wherein the supercontinuum-combining member has one or more input fibres which support no more than four spatial modes at any wavelength within the combined supercontinuum; and wherein the output fibre of the supercontinuum-combining member supports no more than four spatial modes at any wavelength within the combined supercontinuum. | ||||||
| 40 | OPTICAL COMMUNICATION SYSTEM HAVING FILTER WITH INDEX SELECTABLE MATERIAL AND RELATED METHODS | US14864054 | 2015-09-24 | US20170090117A1 | 2017-03-30 | Nicholas RIEGEL; Richard T. AMMON, II; Michael R. LANGE |
| An optical filter device may include an optical fiber having a core and a cladding surrounding the core, the optical fiber having a tapered portion. The optical filter device may include an index selectable material surrounding the tapered portion and having an index of refraction being selectable based upon a physical characteristic. The optical filter device may include a device configured to change the index selectable material to select the index of refraction to selectively filter out a mode within the optical fiber. | ||||||
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