Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
41results about How to "Light transmission loss is small" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Optical device mounted substrate assembly
ActiveUS20050105860A1Low costPrecise processSolid-state devicesSemiconductor/solid-state device manufacturingOptical fiber connectorLight wave
An optical device mounted substrate assembly includes a ceramic substrate having a first recess, an optical device mounted on the ceramic substrate and having one of a light emitting portion and a light receiving portion, the optical device being to be optically connected to one of an optical waveguide and an optical fiber connector in way as to align optical axes of the optical wave guide or the optical fiber connector with each other, a resin layer disposed in the first recess and having a second recess smaller in diameter than the first recess, and an alignment guide member fitted in the second recess and having a protruded portion protruding from a front surface of the ceramic substrate and fittingly engageable in an alignment hole of one of the optical waveguide and the optical fiber connector. A fabrication method of such a substrate assembly is also provided.
Owner:NGK SPARK PLUG CO LTD
Optical device mounted substrate assembly
ActiveUS7150569B2Accurate and reliable positioningLight transmission loss is smallSolid-state devicesSemiconductor/solid-state device manufacturingOptical axisOptical fiber connector
An optical device mounted substrate assembly includes a ceramic substrate having a first recess, an optical device mounted on the ceramic substrate and having one of a light emitting portion and a light receiving portion, the optical device being to be optically connected to one of an optical waveguide and an optical fiber connector in way as to align optical axes of the optical wave guide or the optical fiber connector with each other, a resin layer disposed in the first recess and having a second recess smaller in diameter than the first recess, and an alignment guide member fitted in the second recess and having a protruded portion protruding from a front surface of the ceramic substrate and fittingly engageable in an alignment hole of one of the optical waveguide and the optical fiber connector. A fabrication method of such a substrate assembly is also provided.
Owner:NGK SPARK PLUG CO LTD
Waveguide Bragg grating based on SiO2 strip-loaded waveguide and manufacturing method thereof
ActiveCN105607186AHigh transparencyGood optical consistencyOptical waveguide light guideGratingRidge waveguides
The invention discloses a waveguide Bragg grating based on a SiO2 strip-loaded waveguide and a manufacturing method thereof. The waveguide Bragg grating comprises a substrate layer, a flat core layer, a guide core layer and an upper coating, wherein the flat core layer covers the front side of the substrate layer, the guide core layer is positioned on the front side of the flat core layer, and the upper coating covers the front side of the flat core layer and wraps the guide core layer. The waveguide Bragg grating has the advantages of simplicity in process, low cost, good consistency, large-scale production and the like; and compared with a manufacturing process of an outer ridge modulation type waveguide Bragg grating based on a ridge waveguide, the manufacturing method has the advantages that the process is simple, the cost is low, the size is small and the like.
Owner:HENAN SHIJIA PHOTONS TECH
All-optical modulator apparatus based on black phosphorus
ActiveCN105589195AEasy to makeLight transmission loss is smallCladded optical fibreOptical waveguide light guideMicro nanoBlack phosphorus
The invention discloses an all-optical modulator apparatus based on black phosphorus. The apparatus includes a pumped laser source, a direct current continuous laser source, a reflector, a dichroic laser beam combiner, a convex lens, a micro nano optical fiber, the black phosphorus, and a bandpass optical filter. The black phosphorus of the invention has good saturated absorption characteristic of spectra from visible light to near infrared light, and can work in a broadband spectrum range. The all-optical modulator apparatus based on the black phosphorus employs the all-optical modulation, overcomes the problem of modulation speed bottleneck of the electro-optical modulation, and has the advantages of the fast optical modulation speed, the low power consumption, the high modulation depth, and compatibility with an optical fiber system.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Silicon-based hybrid integrated avalanche photodetector
ActiveCN105789366AImprove coupling efficiencyAchieve responsivenessSemiconductor devicesLow noiseWaveguide
The invention discloses a silicon-based hybrid integrated avalanche photodetector (APD). The silicon-based hybrid integrated avalanche photodetector comprises an SOI (silicon-on-insulator) inverted cone coupling structure, a bonding layer, a waveguide and optical matching layer and an avalanche photodetecting structure, which are superposed from bottom to top; and the waveguide and optical matching layer comprises a waveguide region and an optical matching region. The silicon-based hybrid integrated avalanche photodetector is built through a bonding technology; the high-efficiency coupling target is achieved by using an inverted cone template conversion coupling structure and an evanescent wave optical coupling way; an APD of a separate absorption charge multiplication region (SACM) can reach the target of high-speed and low-noise optical detection through a narrow multiplication layer and a narrow absorption layer; and the avalanche photodetector simultaneously integrates the advantages of the SOI inverted cone coupling structure and the avalanche photodetecting structure in a manner of bonding the SOI inverted cone coupling structure and the avalanche photodetecting structure.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Optical fiber rod, optical fiber, image fiber, and method for manufacturing optical fiber rod
ActiveUS20170363805A1Significant differenceLight transmission loss is smallGlass making apparatusOptical fibre with graded refractive index core/claddingFiberPolymer science
An optical fiber rod (30) according to the present invention includes a center region (35), an outer region (31) formed around the center region (35), and an intermediate region (33) formed between the center region (35) and the outer region (31), and satisfies nA>nB>nC where nA is the refractive index of a material A produced by polymerization of a monomer ma, nB is the refractive index of a material B produced by polymerization of a monomer mb, and nC is the refractive index of a material C produced by polymerization of a monomer mc. The center region (35) is made of a material produced by polymerization of a monomer mixture containing the monomer ma, the outer region (31) is made of a material produced by polymerization of a monomer mixture containing the monomer mc, and the intermediate region (33) is made of a material produced by polymerization of a monomer mixture containing the monomer mb. The refractive index decreases in the order: the center region (35)>the intermediate region (33)>the outer region (31).
Owner:KURARAY CO LTD
Opto-electric hybrid board, and production method therefor
ActiveUS20160216464A1Suppresses light transmission lossAvoids unnecessary stepPrinted circuit assemblingCircuit bendability/stretchabilityInsulation layerComputer module
An inventive opto-electric hybrid board includes: opto-electric module portions respectively provided on opposite end portions of an elongated insulation layer and including a first electric wiring of a first electrically conductive pattern and an optical element provided on a front surface of the insulation layer; and an interconnection portion provided on a portion of the insulation layer extending from the opto-electric module portions, and including an elongated optical waveguide on a back surface of the insulation layer optically coupled with the optical elements, and having a light signal transmission core. Further, an electrically conductive dummy pattern is provided on the front surface of the insulation layer in the interconnection portion for reinforcing the interconnection portion. The electrically conductive dummy pattern reinforces the interconnection portion to protect the waveguide from bending and twisting, while ensuring the flexibility of the interconnection portion. This suppresses increase in light transmission loss.
Owner:NITTO DENKO CORP
Fiber bragg grating pressure sensor used in high-temperature high-voltage environment and manufacturing method
InactiveCN104198096AImmune to electromagnetic interferenceLight transmission loss is smallForce measurement by measuring optical property variationThermometers using physical/chemical changesPressure sensitiveMetal matrix composite
The invention relates to a fiber bragg grating pressure sensor used in a high-temperature high-voltage environment. The fiber bragg grating pressure sensor comprises a packaging casing, an elastic body and a fiber bragg grating sensing device, wherein the elastic body and the fiber bragg grating sensing device are arranged in the packaging casing, the elastic body is made from a metal based composite material, the fiber bragg grating sensing device comprises a pressure sensitive optical grating, the pressure sensitive optical grating is embedded into the elastic body, and the surface of the pressure sensitive optical grating is coated with a metal material. The high-voltage and high-temperature resisting performance of the fiber bragg grating pressure sensor can be improved to the great extent, the fiber bragg grating pressure sensor has the advantages of being high in strength, modulus and measurement accuracy. The invention further relates to a manufacturing method of the fiber bragg grating pressure sensor used in the high-temperature high-voltage environment.
Owner:CHINA GEOKON INSTR
Ultrafast time domain stretching imaging device and method
InactiveCN110411954AEasy to operateLight transmission loss is smallColor/spectral properties measurementsTime domainSignal-to-noise ratio (imaging)
The invention discloses an ultrafast time domain stretching imaging device and method, and belongs to the technical field of high speed imaging. Plano-convex lenses are used to change the gathering size and angle of spatial coded pulses in a space in front of a fifth plano-convex lens, the fifth plano-convex lens further gathers light spots into an effective light reception range of a high-speed free space photoelectric detector, and the problem that a time domain stretching based ultrafast imaging device in the prior art has high light pulse transmission loss and is difficult in operation issolved. The imaging device and method of the invention is simple in operation and lower in light transmission loss, can effectively improve the signal to noise ratio of a corresponding system and achieve higher image quality.
Owner:WUHAN UNIV
Opto-electric hybrid board, and production method therefor
ActiveUS9703057B2Light transmission loss is smallAvoid breakingPrinted circuit assemblingCircuit bendability/stretchabilityInsulation layerEngineering
An inventive opto-electric hybrid board includes: opto-electric module portions respectively provided on opposite end portions of an elongated insulation layer and including a first electric wiring of a first electrically conductive pattern and an optical element provided on a front surface of the insulation layer; and an interconnection portion provided on a portion of the insulation layer extending from the opto-electric module portions, and including an elongated optical waveguide on a back surface of the insulation layer optically coupled with the optical elements, and having a light signal transmission core. Further, an electrically conductive dummy pattern is provided on the front surface of the insulation layer in the interconnection portion for reinforcing the interconnection portion. The electrically conductive dummy pattern reinforces the interconnection portion to protect the waveguide from bending and twisting, while ensuring the flexibility of the interconnection portion. This suppresses increase in light transmission loss.
Owner:NITTO DENKO CORP
Electro-optic crystal film, preparation method thereof and electro-optic modulator
PendingCN111965856AReduce DiffuseLight transmission loss is smallOptical light guidesNon-linear opticsThin membraneElectro-optics
The invention provides an electro-optical crystal film, a preparation method thereof and an electro-optical modulator, and the electro-optical crystal film sequentially comprises a silicon substrate layer, a silicon dioxide layer, a silicon waveguide layer, a coating isolation layer and a functional film layer from the bottom to the top. The refractive index of the coating isolation layer is lowerthan that of the functional film layer, and the coating isolation layer is subjected to planarization processing and can be bonded with the functional film layer. The coating isolation layer is adopted to replace an adhesive layer in the prior art, on one hand, the coating isolation layer can be subjected to planarization processing, the surface roughness of the side, close to the functional filmlayer, of the coating isolation layer is reduced, diffuse reflection can be reduced, and therefore light transmission loss is reduced; and on the other hand, the coating isolation layer and the functional film layer are combined in a bonding manner, so that the uniformity and the integrity of the functional film layer are ensured.
Owner:JINAN JINGZHENG ELECTRONICS
Heterogeneously integrated CWDM4 light emitting chip
PendingCN111342903AReduce transmission lossLight transmission loss is smallElectromagnetic transmittersMultiplexerEngineering
The invention discloses a heterogeneous integrated CWDM4 light emitting chip which integrates four MZ electro-optical modulators, four lasers and a wavelength division multiplexer, the four lasers arebonded on a substrate, a SiO2 layer is arranged on the substrate, and a Si layer is arranged on the SiO2 layer; each MZ electro-optical modulator comprises a PLC waveguide combiner, a PLC waveguide shunt and a pair of silicon waveguide phase shift arms; PLC waveguide combiners and demultiplexers of the four MZ electro-optical modulators are all arranged in the SiO2 layer, and silicon waveguide phase shift arms of the four MZ electro-optical modulators are all arranged on the Si layer. The wavelength division multiplexer is arranged in the SiO2 layer; optical signals output by the four lasersare coupled into the PLC waveguide splitters of the four MZ electro-optical modulators through end faces respectively, and the output ends of the PLC waveguide combiners of the four MZ electro-opticalmodulators are connected with the wavelength division multiplexer through PLC waveguides respectively. The heterogeneous integrated CWDM4 light emitting chip has the technical advantages of high modulation rate and low loss, and can directly realize low-loss end surface coupling with a single-mode optical fiber at a light emitting end.
Owner:HENGTONG ROCKLEY TECHNOLOGY CO LTD
Organic electroluminescence device and manufacturing method thereof
InactiveCN104425733AImprove light extraction efficiencyLight transmission loss is smallSolid-state devicesSemiconductor/solid-state device manufacturingPhysicsOrganic electroluminescence
The invention provides an organic electroluminescence device. The organic electroluminescence device comprises a glass substrate, and an anode, a scattering layer, an organic light-emitting functional layer and a cathode which are sequentially arranged on the glass substrate in a stacked manner; the scattering layer comprises a first doped layer, a ferric salt layer and a second doped layer which are sequentially arranged on the anode in a stacked manner; the first doped layer is made of a mixed material of an organic material and ferric salt, and the second doped layer is made of a mixed material of the organic material and titanium dioxide; the organic material is one of 2, 3, 5, 6-tetrafluoro-7, 7, 8, 8, -tetracyano-benzoquinodimethane, 4, 4, 4-tri(naphthyl-1-phenyl-ammonio) triphenylamine and dinaphthyl-N, N'-diphenyl-4, 4'-benzidine. The scattering layer is additionally arranged in the structure of the organic electroluminescence device, so that the light-emitting efficiency and the luminous efficiency of the device can be improved. The invention also provides a manufacturing device of the organic electroluminescence device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2
Surface plasma waveguide based on sub-wavelength metal V groove superpower light fettering
ActiveCN105467517ALight transmission loss is smallOptical light guidesPlasmonic waveguideLength wave
A surface plasma waveguide based on sub-wavelength metal V groove superpower light fettering mainly comprises a metal (silver) substrate 1 carved with a V groove; a layer of silica medium membrane 2 is coated on each of the two inner walls of the V groove on the silver substrate 1; and a whole optical waveguide is surrounded by an air layer 3. The width of the V groove is W; the thickness of the silica membrane on the top of the V groove is t; and the angle of the V groove is alpha and theta.
Owner:徐州天骋智能科技有限公司
Liquid core hydrogel optical fiber, preparation method and application of liquid core hydrogel optical fiber, liquid core hydrogel optical fiber probe sensor and application of liquid core hydrogel optical fiber probe sensor
ActiveCN114163676AImprove light transmission efficiencyGood flexibilityRaman scatteringFluorescence/phosphorescenceFiberLight energy
The invention provides a liquid core hydrogel optical fiber, a preparation method and application of the liquid core hydrogel optical fiber, a liquid core hydrogel optical fiber probe sensor and application of the liquid core hydrogel optical fiber probe sensor, and belongs to the technical field of optical fibers. The liquid core hydrogel optical fiber provided by the invention comprises a hollow hydrogel fiber core, a liquid core located in the hollow hydrogel fiber core, and a hydrogel wrapping layer wrapping the surface of the hollow hydrogel fiber core, the two ends of the hollow hydrogel fiber core are provided with UV glue seals. Light energy of the liquid core hydrogel optical fiber is mainly distributed in a liquid core in a concentrated mode, locality is good, light transmission loss is low, collection efficiency is high, and detection sensitivity is high. The liquid core is eluted or replaced to realize reutilization, so that the reutilization rate is high; by changing the type of the sensing liquid core or the light transmission liquid core in the liquid core, detection of various substances can be realized, and the liquid core is good in flexibility, high in expandability and wide in application field, and has a good application prospect in the aspect of detection of metal ions, medicines and biotoxins.
Owner:HUAQIAO UNIVERSITY
Semiconductor laser light source module based on planar waveguide combiner and manufacturing method
PendingCN113193468AGood material uniformityLight transmission loss is smallLaser detailsOptical light guidesLaser lightErbium lasers
The invention relates to a semiconductor laser light source module based on a planar waveguide combiner, and the module comprises a bearing substrate which is provided with N electrodes; N semiconductor lasers, wherein bare chips on the semiconductor lasers are respectively bonded with the corresponding electrodes through leads; an optical waveguide combining structure sequentially comprising a waveguide layer, a reflection dielectric layer and a bonding layer from top to bottom; the waveguide layer being provided with a waveguide circuit pattern, the waveguide circuit pattern comprising N light inlets and one light outlet, and the N light inlets being in one-to-one correspondence with light outlet points of bare chips on the N semiconductor lasers; and a covering box. The invention further provides two manufacturing methods of the semiconductor laser light source module based on the planar waveguide combiner. According to the semiconductor laser light source module based on the planar waveguide type combiner provided by the invention, the large-aperture waveguide is prepared by a method of directly etching on the wafer, so that the laser coupling difficulty is greatly reduced, and the size of a device is greatly reduced.
Owner:三序光学科技(苏州)有限公司
Spot-size converter and silicon optical integrated chip
ActiveCN113359234AImprove pattern matchingLow polarization dependent lossOptical waveguide light guideTransmission lossOptical polarization
The invention discloses a spot-size converter and a silicon optical integrated chip. The spot-size converter has a first end surface optically coupled with an external optical fiber and a second end surface optically coupled with an external optical device, and the spot-size converter comprises a first optical waveguide and a second optical waveguide, wherein the first optical waveguide comprises a first wedge-shaped structure and a second wedge-shaped structure, and the first wedge-shaped structure and the second wedge-shaped structure face opposite directions; and the second optical waveguide comprises a third wedge-shaped structure, and the tip of the third wedge-shaped structure faces the first wedge-shaped structure and is at least partially overlapped with the second wedge-shaped structure. By designing a special waveguide coupling structure, the mode matching degree of the spot-size converter and the external optical fiber is improved, the polarization dependent loss between the two optical waveguides in the spot-size converter is reduced, and the thermal stability of the optical waveguides in the silicon optical integrated chip is improved, so that the optical transmission loss in the silicon optical integrated chip is reduced.
Owner:INNOLIGHT TECHNOLOGY (SUZHOU) LTD
Prepolymer, curable material, coating composition, non-linear optical material, optical waveguide and light control device
InactiveUS20150153509A1Small optical transmission lossLow voltageCladded optical fibreCoupling light guidesPhysicsPrepolymer
Provided are: a prepolymer which is capable of forming a non-linear optical material that has excellent non-linear optical effect, heat resistance, withstand voltage and transparency; a curable material which contains the prepolymer; a coating composition which contains the curable material and a solvent; a non-linear optical material which is obtained by curing the curable material; an optical waveguide which uses the non-linear optical material; and a light control device which is provided with the optical waveguide. The present invention uses a prepolymer having a crosslinkable functional group, which is obtained by reacting one or more compounds (X) that are selected from the group consisting of compounds (X1), compounds (X2) and compounds (X3), a compound (Y) that is represented by formula (Y), a compound (Z) that has three or more phenolic hydroxyl groups, and an organic compound (B) that exerts a non-linear optical effect and has a reactive group.
Owner:ASAHI GLASS CO LTD
Low scattering silica glass, and method for thermally treating silica glass
ActiveCN105473518ARayleigh scattering coefficient is smallLight transmission loss is smallGlass fibre drawing apparatusGlass shaping apparatusFiberOptical communication
Owner:AGC INC
Method for manufacturing composite fiber F-P sensor based on self-focusing effect
InactiveCN101825479BLight transmission loss is smallImprove reflectivityPhase-affecting property measurementsThermometers using physical/chemical changes
The invention discloses a method for manufacturing a composite fiber F-P sensor based on the self-focusing effect, comprising the following steps: manufacturing a micropore on the end face of a multimode graded index fiber by adopting chemical corrosion or laser micromachining technology; welding the multimode graded index fiber with the micropore with a single mode fiber to form a fiber F-P cavity structure; cutting the multimode graded index fiber and realizing the high performance fiber F-P sensor when the length meets certain conditions. The method reduces the loss of the fiber F-P cavityby adopting the self-focusing effect in the multimode graded index fiber and improves the reflectivity of the end face, thus ensuring the fringe contrast of the reflectance spectrum of the fiber F-P sensor to be higher than 30dB. The fiber sensor manufactured by the method has high measuring sensitivity of refractive index and temperature and good linearity.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Optical fiber rod, optical fiber, image fiber, and method for manufacturing optical fiber rod
ActiveUS10215916B2Significant differenceLight transmission loss is smallGlass making apparatusOptical fibre with graded refractive index core/claddingFiberPolymer science
An optical fiber rod (30) according to the present invention includes a center region (35), an outer region (31) formed around the center region (35), and an intermediate region (33) formed between the center region (35) and the outer region (31), and satisfies nA>nB>nC where nA is the refractive index of a material A produced by polymerization of a monomer ma, nB is the refractive index of a material B produced by polymerization of a monomer mb, and nC is the refractive index of a material C produced by polymerization of a monomer mc. The center region (35) is made of a material produced by polymerization of a monomer mixture containing the monomer ma, the outer region (31) is made of a material produced by polymerization of a monomer mixture containing the monomer mc, and the intermediate region (33) is made of a material produced by polymerization of a monomer mixture containing the monomer mb. The refractive index decreases in the order: the center region (35)>the intermediate region (33)>the outer region (31).
Owner:KURARAY CO LTD
How to make a photodetector
ActiveCN108987530BLight transmission loss is smallReduce lossFinal product manufactureSemiconductor devicesPhotovoltaic detectorsPhotodetector
The invention relates to a manufacturing method of a photodetector. The method includes the following steps: (1) sequentially growing a buffer layer, a waveguide layer, a light collecting layer, a spacer layer and a light absorbing layer on a substrate; 2, selectively removinga part of that spacer layer and the light absorption layer, wherein the removed part is a passive waveguide region and thereserved part is an absorption region; 3, grow a covering layer on that light collect layer and the light absorbing layer in a large area; 4, for a contact layer on that cover layer; 5, fabricate a dielectric mask on that contact layer in the passive waveguide region; 6, dope that light absorption layer, the clad layer and the contact layer above the absorption region in a diffusion doping mode. The invention can simplify the monolithic integration of the photodetector and the low-loss passive waveguide.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
A kind of ge-se-zn chalcogenide film material for optical waveguide and preparation method thereof
ActiveCN106560526BImprove uniformityGood amorphous propertiesVacuum evaporation coatingSputtering coatingChemical structureAlloy
The invention discloses a Zn-Se-Ge sulfur-based thin film material for optical waveguide, and a preparation method thereof. The Zn-Se-Ge sulfur-based thin film material is characterized in that the chemical structure formula is ZnxSeyGez, wherein x is more than 28 and is less than 40, y is more than 30 and is less than 45, z is more than 15 and is less than 40, and the sum of x, y and z is 100. The preparation method comprises: arranging a ZnSe alloy target material in a magnetron radio frequency sputtering target, arranging a Ge elementary target material in a magnetron direct current target, vacuumizing the sputtering chamber of a magnetron sputtering film plating system to achieve an inside-chamber vacuum degree of 2.5*10<4> Pa, introducing high-purity argon at a speed of 50 ml / min until the start-up pressure achieves 0.25 Pa, controlling the sputtering power of the Ge target at 0-11 W, fixing the sputtering power of the ZnSe alloy target at 70 W, and carrying out sputtering film plating at a room temperature. The prepared Zn-Se-Ge sulfur-based thin film material of the present invention has advantages of high stability, low roughness, high transmittance, short short-wave cutoff edge, low thin film component deviation, and stable structure.
Owner:NINGBO UNIV
Electron-photon double-transmission micro-structure polymer optical fiber
InactiveCN101246234ALarge specific surface areaIncrease profitCladded optical fibreOptical waveguide light guideElectronPolymer
The invention relates to an electron-photon double transmission microstructure polymer fiber which can transmit electrons and photons, the technology resolving program is that: the polymer fiber includes matrix (1), inner cladding (5) and outer cladding (4), the fiber matrix (1) is equipped in the outer cladding (4), the inner cladding (5) is equipped in fiber matrix (1), the inner cladding (5) is composed of air channel, the inner surface of the air channel (2) is equipped with conducting layer (3). It has advantages of integral mechanic structure, which can be produced in large-scale and at the same time can transmit electros and photons.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Optical waveguide manufacturing method
InactiveUS7095934B2Small optical transmission lossReduce irregularitiesOptical waveguide light guideLight waveWaveguide
A method for manufacturing an optical waveguide of the present invention is one in which a mask is provided on the surface of a core layer followed by performing dry etching, and the dry etching step includes etching and ashing steps. With this, the irregularities formed on the periphery of a core pattern during manufacture of an optical waveguide can be eliminated, and an optical waveguide with a low optical transmission loss is proved.
Owner:PANASONIC CORP
A silicon-based hybrid integrated avalanche photodetector
ActiveCN105789366BImprove coupling efficiencyAchieve responsivenessSemiconductor devicesLow noiseWaveguide
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Production method of polyimide solution and fluorinated polyimide solution
The invention aims to provide a method by which a solution of polyimide can be easily obtained. Further, the invention aims to provide a fluorinated polyimide solution by which fluorinated polyimide excellent especially as an optical material and an electronic functional material can easily be produced. The production method of the soluble polyimide solution according to invention is characterized by mixing a mixture containing a polyamide acid, a cyclodehydration reagent, and a solvent by a rotation-revolution mixing method. Further, the fluorinated polyimide solution of the invention is a solution of polyimide defined by the following formula (II):wherein, X and Y independently represent divalent organic groups; Z represents chlorine atom, bromine atom, or iodine atom; p represents an integer of 1 to 3; q represents an integer of 0 to 2; and p+q=3.
Owner:NIPPON SHOKUBAI CO LTD
Fabrication method of waveguide Bragg grating based on sio2 loaded strip waveguide
ActiveCN105607186BHigh transparencyGood optical consistencyOptical waveguide light guideGratingRidge waveguides
The invention discloses a waveguide Bragg grating based on a SiO2 strip-loaded waveguide and a manufacturing method thereof. The waveguide Bragg grating comprises a substrate layer, a flat core layer, a guide core layer and an upper coating, wherein the flat core layer covers the front side of the substrate layer, the guide core layer is positioned on the front side of the flat core layer, and the upper coating covers the front side of the flat core layer and wraps the guide core layer. The waveguide Bragg grating has the advantages of simplicity in process, low cost, good consistency, large-scale production and the like; and compared with a manufacturing process of an outer ridge modulation type waveguide Bragg grating based on a ridge waveguide, the manufacturing method has the advantages that the process is simple, the cost is low, the size is small and the like.
Owner:HENAN SHIJIA PHOTONS TECH
Production method of polyimide solution and fluorinated polyimide solution
The invention aims to provide a method by which a solution of polyimide can be easily obtained. Further, the invention aims to provide a fluorinated polyimide solution by which fluorinated polyimide excellent especially as an optical material and an electronic functional material can easily be produced. The production method of the soluble polyimide solution according to invention is characterized by mixing a mixture containing a polyamide acid, a cyclodehydration reagent, and a solvent by a rotation-revolution mixing method. Further, the fluorinated polyimide solution of the invention is a solution of polyimide defined by the following formula (II):wherein, X and Y independently represent divalent organic groups; Z represents chlorine atom, bromine atom, or iodine atom; p represents an integer of 1 to 3; q represents an integer of 0 to 2; and p+q=3.
Owner:NIPPON SHOKUBAI CO LTD
Prepolymer, curable material, coating composition, non-linear optical material, optical waveguide and light control device
InactiveUS9575246B2Good effectIncrease resistanceCladded optical fibreCoupling light guidesOrganic compoundWaveguide
Provided are: a prepolymer which is capable of forming a non-linear optical material that has excellent non-linear optical effect, heat resistance, withstand voltage and transparency; a curable material which contains the prepolymer; a coating composition which contains the curable material and a solvent; a non-linear optical material which is obtained by curing the curable material; an optical waveguide which uses the non-linear optical material; and a light control device which is provided with the optical waveguide. The present invention uses a prepolymer having a crosslinkable functional group, which is obtained by reacting one or more compounds (X) that are selected from the group consisting of compounds (X1), compounds (X2) and compounds (X3), a compound (Y) that is represented by formula (Y), a compound (Z) that has three or more phenolic hydroxyl groups, and an organic compound (B) that exerts a non-linear optical effect and has a reactive group.
Owner:AGC INC
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com