| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Optical modulation device | US11884407 | 2006-02-16 | US08311371B2 | 2012-11-13 | Kenji Kawano; Masaya Nanami; Hiroaki Senda; Takeshi Hondo; Seiji Uchida; Yuji Sato; Toru Nakahira |
| Herein disclosed is an optical modulation device, comprising: a substrate 1 having a polarization non-reversal region 17a and a polarization reversal region 17b; an optical waveguide 18 including first and second branched optical waveguide portions 18a, 18b; and a traveling waveguide including a center electrode 19a and a ground electrode 19b, 19c to have an electric signal applied thereto, said traveling waveguide and said first and second branched optical waveguide portions collectively forming an interaction portion to have said incident light interacted with said electric signal, said interaction portion being constituted by a first interaction sub-portion 20a and a second interaction sub-portion 20b, said first and second interaction sub-portions being respectively positioned in regions of said substrate having opposite polarization orientations with each other, in which said center electrode is positioned in face to face relationship with one of said first and second branched optical waveguide portions at said first and second interaction sub-portion to ensure that said incident light in said first and second branched optical waveguide portions are phase modulated, and in which said interaction portion includes an optical waveguide shift sub-portion sandwiched between said first and second interaction sub-portions to have positions of said first and second branched optical waveguide portions shifted therein in a transverse direction, ensuring that positions of said first and second optical waveguides relative to said center and ground electrodes are interchanged between said first and second interaction sub-portions. | ||||||
| 102 | OPTICAL DEVICE | US13511830 | 2010-11-24 | US20120243825A1 | 2012-09-27 | Toru Takizawa; Takaaki Nozaki; Yosuke Abe |
| An optical device (20) are formed by bonding a optical element (6) having an optical waveguide (8) with a substrate (2). On a surface of the optical element (6) facing the substrate (2) formed are the optical waveguide (8) and a thin film heater (4) that heats the optical waveguide (8). The optical element (6) and the substrate (2) are bonded through a first bonding part (12) and a second bonding part (14) made of metal material. The thin film heater (4) is electrically connected with a wire on the substrate (2) through the first bonding part (12) and the second bonding part (14). In this way, additional wires for electrical connection can be omitted, the optical element 6 can be miniaturized removing a superfluous region, and the manufacturing process can be simplified. | ||||||
| 103 | Stable lithium niobate waveguides, and methods of making and using same | US12624147 | 2009-11-23 | US08189981B2 | 2012-05-29 | Heinrich G. Muller; Hyun I. Kim; Brendan J. Foran |
| The invention provides stable lithium niobate waveguides, and systems and methods for making same. In accordance with one aspect of the invention, a waveguide includes a lithium niobate substrate having an upper surface; and a soft proton-exchanged layer embedded within the substrate, the soft proton-exchanged layer formed by exposing the lithium niobate substrate to a proton exchange solution including a proton exchange acid and a lithium salt of the proton exchange acid at a temperature of less than an atmospheric boiling point of the solution, followed by annealing the lithium niobate substrate under a vapor pressure of water preselected to inhibit protons in the substrate from forming water and evaporating from the upper surface of the substrate. The preselected water vapor pressure may be between 0.1 atm and about 0.9 atm, for example, between about 0.4 atm and about 0.6 atm, in one embodiment about 0.47 atm. | ||||||
| 104 | Wavelength conversion element, laser light source, two-dimensional image display and laser processing system | US11997099 | 2006-07-26 | US08018646B2 | 2011-09-13 | Hiroyuki Furuya; Akihiro Morikawa; Kiminori Mizuuchi; Kazuhisa Yamamoto; Shinichi Kadowaki |
| A wavelength conversion element is provided with a substrate including a nonlinear optical single crystal having a periodically poled structure, wherein a visible light transmittance of the substrate is 85% or higher when ultraviolet light is irradiated to the substrate. Further, a laser light having an average output of 1 W or more is outputted by shortening a wavelength of inputted laser light having a wavelength of 640 nm to 2000 nm. By improving visible light transmission characteristics when the ultraviolet light is irradiated in this way, a breakdown of crystal can be prevented and a stabilization of output characteristics at high output can be realized. As a result, an absorption of green light induced by ultraviolet light can also be suppressed and a saturation of output and the breakdown of crystal can be avoided. | ||||||
| 105 | Slot waveguide for color display | US12215330 | 2008-06-25 | US07925122B2 | 2011-04-12 | Kenneth A. Diest; Jennifer A. Dionne; Harry A. Atwater; Henri Lezec |
| A slot waveguide utilized as a color-selecting element. The slot waveguide includes a first layer of plasmon supporting material, the first layer being optically opaque and having an input slit extending through the first layer; a second layer of plasmon supporting material facing the first layer and separated from the first layer by a first distance in a first direction, the second layer being optically opaque and having an output slit extending through the second layer and separated from the input slit by a second distance extending along a second direction differing from first direction; a dielectric layer interposed between the first layer and the second layer, the dielectric layer having a real or complex refractive index; and a power source electrically coupled to the first layer and the second layer to apply an electrical signal for modulation of the real or complex refractive index of the dielectric layer. | ||||||
| 106 | Wavelength conversion device | US12855770 | 2010-08-13 | US07916383B2 | 2011-03-29 | Takashi Yoshino |
| A wavelength conversion device includes a supporting body, a wavelength conversion substrate of a Z-plate of a ferroelectric single crystal with a periodic domain inversion structure formed therein and having a thickness “T” of 10 μm or more and 100 μm or less, a buffer layer provided on a bottom face of the wavelength conversion substrate, and an organic resin adhesive layer adhering the supporting body and buffer layer with a thickness of 0.6 μm or more and 2.0 μm or less. | ||||||
| 107 | OPTICAL WAVEGUIDE ELECTRO-OPTIC DEVICE AND PROCESS OF MANUFACTURING OPTICAL WAVEGUIDE ELECTRO-OPTIC DEVICE | US12872290 | 2010-08-31 | US20110064352A1 | 2011-03-17 | Jun NAKAGAWA; Shuichi Suzuki; Atsushi Sakai; Koichiro Nakamura |
| An optical waveguide electro-optic device including: a support substrate; an optical waveguide which has a core layer formed of a ferroelectric material, and is formed on an upper side of the support substrate; a lower electrode layer formed on a lower side of the core layer and which is adhered to the support substrate through an adhesion layer; an upper electrode layer formed on an upper side of the core layer; and an external electrode part, wherein the optical waveguide has an incidence plane from where light enters and an outgoing plane from where the light exits, the core layer has a polarization inversion region and a polarization non-inversion region, the upper electrode layer has a plane in such a shape that a width of the plane expands from a side of the incidence plane toward a side of the outgoing plane, to cover the polarization inversion region of the core layer, and the lower electrode layer is connected electrically to the external electrode part on the side of the incidence plane. | ||||||
| 108 | OPTICAL PHASE MODULATION ELEMENT AND OPTICAL MODULATOR USING THE SAME | US12526107 | 2007-12-25 | US20100316325A1 | 2010-12-16 | Daisuke Okamoto; Masafumi Nakada; Junichi Fujikata |
| Provided is a small-size optical phase modulation element and an optical modulator using it. The optical phase modulation element includes a Plasmon waveguide having a clad made of a metal material having a complex dielectric constant having a negative real part in the used wavelength and a core formed by a dielectric metal material having a complex dielectric constant having a positive real part in the used wavelength. The Plasmon waveguide is connected to an optical waveguide including a clad and a core both having a complex dielectric constant having a positive real part. The core of the Plasmon waveguide and the core of the optical waveguide are formed, at least partially, of the same semiconductor material. The Plasmon waveguide has a function to phase-modulate the incident light when voltage is applied. | ||||||
| 109 | OPTICAL ELEMENT | US12733875 | 2008-09-26 | US20100247025A1 | 2010-09-30 | Katsutoshi Kondou; Susumu Murata; Junichiro Ichikawa |
| Disclosed is an optical element which includes a support substrate and a thin plate of single crystal stacked on the support substrate through a thermoplastic adhesive, having the advantages of easily regulating the phase of light waves and restoring the regulated state to the original state. The optical element includes a support substrate 4 and a thin plate 1 of single crystal stacked on the support substrate 4 through a thermoplastic adhesive 3. The optical characteristics of the optical element are regulated by applying stress within an elastic limit to at least a part of the thin plate in a state where the thermoplastic adhesive is softened by heating the optical element, forming a concavo-convex part 10 in the thin plate, and then cooling the optical element to fix the concavo-convex part. | ||||||
| 110 | TE-TM mode converter | US12018290 | 2008-01-23 | US07787715B2 | 2010-08-31 | Makoto Kumatoriya |
| A TE-TM mode converter is provided which is capable of performing a TE-TM conversion in a wide bandwidth. In a TE-TM mode converter using an electrooptic effect, a waveguide is formed on a substrate using lithium tantalate having a birefringence of about 0.0005 or less. The direction of an optical axis of lithium tantalate forming the waveguide is approximately parallel to a primary surface of the substrate. In addition, a first electrode and a second electrode are provided on the primary surface of the substrate so as to face each other with the waveguide placed therebetween. | ||||||
| 111 | SURFACE-PLASMON-ASSISTED OPTICAL FREQUENCY CONVERSION | US12368792 | 2009-02-10 | US20100202728A1 | 2010-08-12 | Girsh Blumberg; Aref Chowdhury |
| An optical frequency converter that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the electrically conducting strip. The optical frequency converter has a periodic structure that spatially modulates the nonlinear susceptibility of the waveguide core with a spatial period that is related to a momentum mismatch in the nonlinear optical process. The spatial modulation provides quasi-phase matching for the SP wave and the light beam and enables efficient energy transfer between them. | ||||||
| 112 | OPTICAL MODULATOR | US12634793 | 2009-12-10 | US20100202722A1 | 2010-08-12 | Masaki SUGIYAMA |
| In an optical modulator, respective lights for where one input light has been branched, are input via a curved waveguide to a plurality of optical modulation sections arranged in parallel on the same substrate. In a Mach-Zehnder type optical waveguide, a spacing between the pair of branching waveguides of the adjacent optical modulation sections, is formed so as to become wider in the vicinity of a border of an input side polarization inversion region than in the vicinity of a start point of an interaction portion. As a result, even if a signal electrode of the optical modulation sections shifts at the boundary portion of the polarization inversion region, the spacing between the signal electrodes does not become narrow, and hence the radius of curvature of curved waveguides for guiding the input light to the respective optical modulation sections can be increased, so that it becomes possible to apply input light to the optical modulation sections at low loss. | ||||||
| 113 | OPTICAL SWITCH SYSTEM USING OPTICAL INTERFERENCE | US12095542 | 2006-11-29 | US20100150495A1 | 2010-06-17 | Tetsuya Kawanishi; Masayuki Izutsu; Takahide Sakamoto; Masahiro Tsuchiya |
| It is an object of the present invention to provide an optical switch system using optical interference. An optical switch system (1) comprises an input part (2) of an optical signal, a branching part (3) of the signal, a main Mach-Zehnder waveguide (MZC) (7), a first intensity modulator (9) provided on a first arm (4) for controlling an amplitude of an optical signal propagating through the first arm (4), a second intensity modulator (10) provided on a second arm (5) for controlling an amplitude of an optical signal propagating through the second arm (5), and a combining part (6) of the signals outputted from the first arm and the second arm, wherein one or both of the branching part (3) and the combining part (6) are X-branched. | ||||||
| 114 | Wavelength converting devices | US11682557 | 2007-03-06 | US07738161B2 | 2010-06-15 | Takashi Yoshino; Shoichiro Yamaguchi |
| A wavelength converting device has a substrate made of an electro-optic material and converts a wavelength of a fundamental light to oscillate a converted light. A wavelength converting portion is provided in the substrate and has a cross sectional area of 0.0001 mm2 or larger and 0.01 mm2 or smaller. A pair of thinner portions are provided in both sides of the wavelength converting portion, respectively, and thinner than the wavelength converting portion. | ||||||
| 115 | Radio frequency photonic link with differential drive to an optical resonator electro-optic modulator | US11903718 | 2007-09-24 | US07715081B1 | 2010-05-11 | John A. Krawczak |
| A number of electro-optic modulation systems, apparatuses, and methods are disclosed. For example, one radio frequency photonic link with differential drive to an optical resonator electro-optic modulator includes an optically resonant body having a surface for receiving an optical carrier beam, a first electrode for receiving a first electrical signal to the resonator body, and a second electrode for receiving a second electrical signal to the resonator body that is different than the first electrical signal. | ||||||
| 116 | Parametric generation with lateral beam coupling | US11658543 | 2005-07-26 | US07706054B2 | 2010-04-27 | Cameron F. Rae; Malcolm H. Dunn; Jonathan A. Terry |
| 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. | ||||||
| 117 | Optical Modulation Device | US11884407 | 2006-02-16 | US20100054654A1 | 2010-03-04 | Kenji Kawano; Masaya Nanami; Hiroaki Senda; Takeshi Hondo; Seiji Uchida; Yuji Sato; Toru Nakahira |
| Herein disclosed is an optical modulation device, comprising: a substrate 1 having a polarization non-reversal region 17a and a polarization reversal region 17b; an optical waveguide 18 including first and second branched optical waveguide portions 18a, 18b; and a traveling waveguide including a center electrode 19a and a ground electrode 19b, 19c to have an electric signal applied thereto, said traveling waveguide and said first and second branched optical waveguide portions collectively forming an interaction portion to have said incident light interacted with said electric signal, said interaction portion being constituted by a first interaction sub-portion 20a and a second interaction sub-portion 20b, said first and second interaction sub-portions being respectively positioned in regions of said substrate having opposite polarization orientations with each other, in which said center electrode is positioned in face to face relationship with one of said first and second branched optical waveguide portions at said first and second interaction sub-portion to ensure that said incident light in said first and second branched optical waveguide portions are phase modulated, and in which said interaction portion includes an optical waveguide shift sub-portion sandwiched between said first and second interaction sub-portions to have positions of said first and second branched optical waveguide portions shifted therein in a transverse direction, ensuring that positions of said first and second optical waveguides relative to said center and ground electrodes are interchanged between said first and second interaction sub-portions. | ||||||
| 118 | OPTICAL CONTROL DEVICE | US12450464 | 2008-03-28 | US20100046881A1 | 2010-02-25 | Satoshi Oikawa; Junichiro Ichikawa; Yuhki Kinpara; Yuji Yamame |
| A light control element is provided with a thin board having electro-optical effects; an optical waveguide formed on the thin board; and a control electrode for controlling light that passes through the optical waveguide. The light control element performs speed matching between a microwave signal applied to the control electrode and the light, impedance matching of the microwaves, reduction of a driving voltage and high speed operation. In the control electrode of the light control element, a signal electrode and a grounding electrode are arranged on an upper side of the thin board, and on a lower side of the thin board, a second electrode including the grounding electrode is arranged. The second electrode is arranged not to exist below the signal electrode, especially for achieving impedance matching. | ||||||
| 119 | Electro-Optic Crystal-Based Structures and Method of Their Fabrication | US12605014 | 2009-10-23 | US20100040340A1 | 2010-02-18 | Aharon Agranat |
| A structure is presented for use in optic and electro-optic devices. The structure comprises at least one region of an amorphous KLTN-based material in a KLTN-based material. Also provided is a method of processing a KLTN-based material, comprising at least one of the following: bombarding said KLTN-based material with light ions: and etching said KLTN-based material when in amorphous state by an acid; thereby allowing fabrication of one or more optical components within the KLTN-based material. | ||||||
| 120 | OPTICAL CONTROL DEVICE | US12450369 | 2008-03-28 | US20100034496A1 | 2010-02-11 | Satoshi Oikawa; Junichiro Ichikawa; Yuhki Kinpara |
| A light control element is provided with a thin board having electro-optical effects; an optical waveguide formed on the thin board; and a control electrode for controlling light that passes through the optical waveguide. The light control element performs speed matching between a microwave signal applied to the control electrode and the light, impedance matching of the microwaves, reduction of a driving voltage and high speed operation. In the control electrode of the light control element, a signal electrode and a grounding electrode are arranged on an upper side of the thin board, and on a lower side of the thin board, a second electrode including the grounding electrode is arranged, through a low refractive index layer entirely formed in the length direction of the signal electrode, with a width wider than that of the signal electrode. | ||||||
QQ群二维码
意见反馈
意见反馈