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7606460 |
Optical fiber and transmission system, and wavelength division multiplexing system
An optical fiber comprises a center core and a cladding located at an outer periphery of the core, wherein the core comprises at least one codoped layer made from silica glass doped with germanium...
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7596292 |
Treatment method for optical fiber
A treatment method for an optical fiber including accommodating an optical fiber inside a treatment chamber; introducing a deuterium containing gas into the treatment chamber; and in a deuterium...
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7590327 |
Waveguide and light emitting device having the same
A waveguide based on a three-dimensional photonic crystal is arranged to provide wave-guiding in a single mode and a mode having a field strength distribution with unimodality in a plane...
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7570864 |
Polymeric compositions comprising quantum dots, optical devices comprising these compositions and methods for preparing same
The present invention relates to a polymeric composition of matter. The composition includes at least one polymer matrix and plurality of quantum dots distributed therein. The polymer may be a...
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7558461 |
High SBS threshold optical fiber with aluminum dopant
An optical fiber comprising a core having a refractive index profile and a centerline; and a cladding layer surrounding and directly adjacent the core; wherein core includes updoping material and...
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7551830 |
Impact resistant optical waveguide and method of manufacture thereof
An impact resistant waveguide includes a clad surrounding a core. A reinforcing filler is incorporated in a curable silicone composition used to prepare the core, thereby imparting impact...
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7551829 |
Waveguide, waveguide module, optical transmission device, and method of manufacturing waveguide
In a waveguide 10 including a substrate 1 , a lower clad 2 , an upper clad 3 , and a core 4 , the outline of a cross section perpendicular to the light propagating direction of the core 4 ...
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7547652 |
Vitreous compositions of the vitroceramic type, transparent to infrared
The invention relates to vitreous compositions, in particular of the vitroceramic type, transparent to infrared, production and uses thereof. Said compositions comprise in mol. %: Ge 5-40, Ga<1,...
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7536076 |
Optical fiber containing alkali metal oxide
Disclosed is an optical fiber having a silica-based core comprising an alkali metal oxide selected from the group consisting of K 2 O, Na 2 O, LiO 2 , Rb 2 O, Cs 2 O and mixtures thereof in an...
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7532790 |
Method of coupling light into microresonators
A method of making a microresonator device includes the steps of providing at least a first substrate and providing a waveguide integrated on the substrate. The waveguide includes a core and a...
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7529460 |
Zinc oxide optical waveguides
The present disclosure includes methods, devices, and systems having zinc oxide waveguides for optical signal interconnections. One optical signal interconnect system includes an oxide layer on a...
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7526177 |
Fluorine-doped optical fiber
A single mode optical transmission fiber comprises a depressed core having at least 0.41 weight percent fluorine and an index difference (|Δn 1 |) with pure silica greater than 1.5×10 −3 , a...
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7526176 |
Optical amplifier and fabrication method thereof
An optical amplifier including an optical waveguide layer (for example channel-shaped optical waveguide layer) including Pb 1−x La x (Zr y Ti 1−y ) 1−x/4 O 3 (PLZT: 0<x<0.3,...
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7526160 |
Optical fiber Bragg grating with improved hydrogen resistance
Hydrogen-induced losses in germanium-doped fibers is significantly reduced by increasing the concentration of oxygen in the core region of the glass. The increase in oxygen functions to “heal”...
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7524780 |
Low loss optical fiber and method for making same
A method of forming an alkali metal oxide-doped optical fiber by diffusing an alkali metal into a surface of a glass article is disclosed. The silica glass article may be in the form of a tube or a...
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7522803 |
Process for producing optical device
The present invention provides a method of producing an optical element without the need for high vacuum, unlike the thin film deposition methods, and without using a molten salt. More...
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7519262 |
Fiber used in wideband amplified spontaneous emission light source and the method of making the same
The present invention relates to a fiber having a core of crystal fiber doped with chromium and a glass cladding. The fiber has a gain bandwidth of more than 300 nm including 1.3 mm to 1.6 mm in...
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7515809 |
Heat-resisting plastic optical fiber and manufacturing method thereof
A heat-resisting plastic optical fiber which excels in heat resistance and mass production and a manufacturing method thereof. The heat-resisting plastic optical fiber has a core which consists of...
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7515808 |
Thermally stabilized waveguides
An apparatus comprising a planar optical waveguide having an optical core and optical cladding next to the optical core. The optical core or cladding includes a plurality of particles therein. Each...
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7512299 |
Fiber optic cable systems and methods incorporating a luminescent compound-containing layer to identify cracks
Fiber optic cable systems and methods incorporating a luminescent compound-containing layer to identify cracks. Exemplary embodiments include a fiber optic cable apparatus including a core for...
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7507683 |
Glass ceramics for laser systems
A glass-ceramic material, particularly for elements in laser systems, and a method for preparing same. The glass-ceramic material may be used for an optical fiber for communication systems and...
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7493009 |
Optical fiber with tin doped core-cladding interface
The present invention concerns an optical fiber 10 comprising a substantially pure silica glass core 12 , a concentric tin-doped core/cladding interface region 14 , and a concentric...
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7493008 |
Glass for optical amplifier fiber
A tellurite glass composition doped with a first lanthanide, preferably Tm, and codoped with another lanthanide oxide, e.g. Ho, is provided. The glass includes 4-12 mole % of alkalihalide XY, X...
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7489850 |
Phosphorous and alkali doped optical fiber
Disclosed is an optical fiber having a silica-based core and a silica-based cladding, the core comprising germania, and oxides of an alkali metal and phosphorous. By appropriately selecting the...
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7471863 |
Near-field interaction control element
A near-field interaction control element includes a near-field optical waveguide containing particles formed of a metal, a metal anion or a metal cation with a diameter of 0.5 nm or more and 3 nm...
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7454112 |
Ridge and mesa optical waveguides
Apparatus including: a substrate layer having a substantially planar top surface; an optically conductive peak located and elongated on, and spanning a first thickness measured in a direction...
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7450813 |
Rare earth doped and large effective area optical fibers for fiber lasers and amplifiers
Various embodiments described herein include rare earth doped glass compositions that may be used in optical fiber and rods having large core sizes. Such optical fibers and rods may be employed in...
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7444058 |
Resin composition for optical wiring, and optoelectronic circuit board
This invention is a resin composition for optical wiring, comprising an inorganic filler with an average particle size of 1 nm to 100 nm and a resin, having a ratio n f /n r (where n f is the...
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7440673 |
Radiation resistant single-mode optical fiber and method of manufacturing thereof
A radiation resistant single-mode optical fiber has a core and a cladding, each made of fluorine-doped silica glass, in which a chlorine concentration of the core is at least 0.01 ppm, a relative...
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7440672 |
Optical fiber for optical amplifier and process for manufacturing thereof
The present invention relates to an optical fiber for an optical amplifier and a method for manufacturing the same, which can be applied to an optical transmission system in the S-band area (4130...
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7440671 |
Optical waveguide
Materials transparent to terahertz waves are very limited, and it is difficult to obtain the required performance by selecting the material. Further, it is also difficult to search for a novel...
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7433572 |
Optical bypass method and architecture
This invention pertains to optical fiber transmission networks, and is particularly relevant to transmission of high volume of data and voice traffic among different locations. In particular, the...
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7429369 |
Silicon nanoparticle nanotubes and method for making the same
A relatively thick electrode is positioned opposite the surface of a substrate/second electrode. The electrode and the substrate surface are both contacted by a solution including silicon...
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7429138 |
Optical connection method and optical transmission apparatus
A plastic optical fiber ( 11 ) has a core ( 12 ) and a clad ( 13 ). The clad ( 13 ) is composed of an outer clad ( 14 ) and an inner clad ( 15 ). The refractive index in the core ( 12 ) gradually...
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7418187 |
Waveguide configuration
A waveguide configuration comprising a core, a first cladding, a second cladding, and a buffer. The core includes an index of refraction and an acoustic shear velocity. The first cladding extends...
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7412142 |
Optical fiber with plurality of air holes and stress rods
An optical fiber comprising: (i) a silica based passive core having a first index of refraction n 1 ; (ii) a silica based cladding surrounding the core and having a second index of refraction n 2 ,...
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7406235 |
Graded-index multimode fiber and manufacturing method therefor
A graded-index multimode fiber includes a core made of silica glass, the core having a central region and an outer peripheral region, and a cladding which is provided at an outer periphery of the...
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7403326 |
Doped fiber scene projection system and method
This invention pertains to a scene projection system and a method for projecting a scene that can simulate light temperature of above 2000 K. The system comprises of a light source part for...
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7400807 |
Apparatus and method for a waveguide with an index profile manifesting a central dip for better energy extraction
A method and apparatus is described that use an index-of-refraction profile having a significant central dip in refractive index (or another tailored index profile) within the core of a gain fiber...
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7391947 |
Waveguide fabrication methods and devices
A method of writing a waveguide using an ultrashort laser beam is disclosed. The laser beam is directed to a substrate in transverse relation to a waveguide propagation axis to generate an...
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7386210 |
Optical fiber
An optical fiber comprises a photosensitive core that includes a concentration of a first material that increases the refractive index of the core and a concentration of a second material that is...
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7382957 |
Rare earth doped double clad optical fiber with plurality of air holes and stress rods
An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n 1 ; and (ii) at least one silica based cladding surrounding the core and having a second...
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7362939 |
Optical fiber for long period grating, long period grating component and manufacturing method of the same
This invention relates to an optical fiber for long period grating (LPG), LPG components, and manufacturing method of LPG used as a mode coupler, an optical filter, etc. The optical fiber for LPG...
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7341965 |
Bismuth oxide glasses containing germanium oxide
The invention relates to bismuth oxide glass, containing germanium oxide, a method for the production thereof, the use thereof and a glass fiber consisting of said inventive glass.
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7340147 |
Optical waveguide material and optical waveguide
The invention provides an optical waveguide material whose refractive index can be tailored without changing the ratio of Ta and Nb. An optical waveguide of this invention comprising an under-clad...
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7327928 |
Gas filled hollow core chalcogenide photonic bandgap fiber Raman device and method
A hollow core photonic bandgap chalcogenide glass fiber includes a hollow core for passing light therethrough, a Raman active gas disposed in said core, a microstructured region disposed around...
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7324278 |
Black matrix light guide screen display
Provided is a black matrix light guide screen display. In a particular embodiment, provided are a plurality of aligned light guides, each having an input end, a midsection and a magnifying output...
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7315677 |
Dual dopant dual alpha multimode optical fiber
Multimode optical fiber is disclosed herein comprising germania and fluorine co-doped in the core of the fiber. The dopant concentration profiles are defined by a pair of alpha parameters. The...
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7315019 |
Arrays of optical confinements and uses thereof
The present invention relates to optical confinements, methods of preparing and methods of using them for analyzing molecules and/or monitoring chemical reactions. The apparatus and methods...
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7313312 |
Optical fiber and method for making such fiber
According to one example of the invention an optical fiber comprises: (i) silica based, rare earth doped core having a first index of refraction n 1 ; (ii) at least one silica based cladding...
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