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7620279 Polyurethane light guides  
A light guide ( 1 ) formed from an unclad flexible polyurethane fiber produces significant side scattering ( 2 ) over distances of up to several meters. The polyurethane fiber is in the form of a...
7613378 Optical device comprising an optical component and an optical medium with different refractive indices  
The present invention consists in an optical device comprising an optical component and an optical medium with different refractive indices, said optical component being at least partly immersed in...
7609932 Slot waveguide structure  
A nanometer slot waveguide includes a nanometer slot waveguide structure with vertically stacked layers. The vertically stacked layers include a substrate, a first waveguide layer defining a first...
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...
7583878 Optical fiber, optical fiber ribbon, and optical interconnection system  
An optical fiber is made of silica-based glass, and includes a core and a cladding. The optical fiber has a mode field diameter of 5.4 micrometers or larger at a wavelength of 1300 nanometers,...
7574097 Polysilane composition, optical waveguide and method for fabrication thereof  
A polysilane composition characterized as containing a polysilane compound and a silicone compound in the ratio (polysilane compound:silicon compound) by weight of 80:20-5:95, and also containing...
7574088 Optical fiber and optical fiber ribbon, and optical interconnection system  
An optical fiber, made of silica-based glass, comprising a core and a cladding. The optical fiber having a mode field diameter of 6.5 μm or larger at a wavelength of 1300 nm, transmitting light...
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...
7567742 Holey optical fiber with random pattern of holes and method for making same  
A random array of holes is created in an optical fiber by gas generated during fiber drawing. The gas forms bubbles which are drawn into long, microscopic holes. The gas is created by a gas...
7566474 Low shrink telecommunications cable and methods for manufacturing the same  
The present disclosure relates to a telecommunications cable having a layer constructed to resist post-extrusion shrinkage. The layer includes a plurality of discrete shrinkage-reduction members...
7566176 Fiber-optic endface cleaning apparatus and method  
A cleaning apparatus ( 1100 ) for cleaning an endface ( 1104 ) of an optical fiber ( 1106 ), wherein a portion of the optical fiber is contained within an interface device ( 1103 ) is provided. The...
7561776 Method of preventing hydrogen darkening of optic fibre  
A method of preventing hydrogen darkening of optic fiber, which includes a step of providing a protective barrier of hydrogen free flowing gas around the optic fiber, such that the flowing gas...
7558456 Optical waveguide device  
An optical waveguide device includes a lower cladding layer, a high refractive index region provided on the lower cladding layer, a pair of cores provided on the lower cladding layer on both sides...
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 ...
7546017 Electro-photonic modulators  
Various embodiments of the present invention are directed to modulators that can be operated electronically and used to modulate electromagnetic radiation. In one embodiment of the present...
7541058 Method of making circuitized substrate with internal optical pathway  
A circuitized substrate (e.g., PCB) including an internal optical pathway as part thereof such that the substrate is capable of transmitting and/or receiving both electrical and optical signals....
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...
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...
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...
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,...
7526164 Reflective polarizers containing polymer fibers  
A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least...
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...
7522794 Multi-layered water blocking cable armor laminate containing water swelling fabrics and method of making such  
This invention discloses a multi-layered laminate armor wrap for use with a copper or fiber optic cable having at least one water absorbing fabric layer, at least one polymer layer, and at least...
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...
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...
7515776 Temperature-controlled optical modulator  
SiGe quantum wells where the well material has a lowest conduction band energy minimum at k=0 (the Γ point of the first Brillouin zone) are provided. Quantum well structures that satisfy this...
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...
7509018 Plastic optical fiber and production method thereof  
A cylindrical outer clad section is formed by melt-extrusion molding of polyvinylidene fluoride (PVDF) having a molecular structure in which the number of defect bonds of successive CF 2 units and...
7502539 Rare earth doped optical fiber  
An optical fiber including: (i) a silica based, Yb doped core having a first index of refraction n 1 , said core comprising more than 1 wt % of Yb, said core having less than 5 dB/km loss at a...
7499618 Optical element  
An optical element for controlling light propagation including: transparent material; and inorganic fine particles dispersed in the transparent material, wherein the transparent material and the...
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...
7493000 Curable liquid resin optical fiber upjacket composition  
The present invention provides a curable liquid resin composition which, when cured, exhibits excellent removability from an adjacent coating layer and is suitable for an optical fiber upjacket...
7492999 Optical fiber and optical-fiber transmission line  
An optical fiber transmits at least a signal light having a wavelength of 1550 nanometers in a fundamental propagation mode. The optical fiber has, a cutoff wavelength equal to or longer than 1550...
7492978 Waveguide structure  
A novel single point leaky waveguide structure and its use as an optical sensor for the detection of particles is disclosed. The waveguide structure is fabricated to increase the overlap of the...
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...
7486862 Optical fiber and manufacturing method thereof  
A core rod is inserted into a cladding pipe, moisture in a space between the core rod and the cladding pipe is removed, and an optical fiber is drawn while the space is connected to a dry-gas...
7480434 Low loss terahertz waveguides, and terahertz generation with nonlinear optical systems  
A silicon based source for radiation in the 0.5-14 Terahertz regime. This new class of devices will permit continuously tunable, milli-Watt scale, continuous-wave, room temperature operation, a...
7466892 Optical and optoelectronic articles  
Optical and optoelectronic articles incorporating an amorphous diamond-like film are disclosed. Specifically, the invention includes optical or optoelectronic articles containing an amorphous...
7457507 Organometallic polymer material  
An organometallic polymer material is obtained which excels in translucency, shows improved hardness after it is cured and exhibits high reliability at high temperature and high humidity. ...
7457488 Light transmission with temperature sensitive materials  
One embodiment includes a connector for an optical pathway. The connector includes a body formed, at least in part, with a temperature sensitive material having one or more light transmission...
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...
7447406 Coated optical fibre unit and methods of manufacturing coated optical fibre units  
An optical fiber unit having a sheath and a plurality of optical fiber elements loosely housed in the sheath. The sheath is coated with particles of an adherence reducing substance and has a radial...
7444055 Integrated optics arrangement for wavelength (De)multiplexing in a multi-grade vertical stack  
The invention describes an integrated-photonics arrangement, implementable in a multi-guide vertical integration structure composed from III-V semiconductors and grown in one epitaxial growth run,...
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...
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...
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...
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...
7428360 Optical waveguide sensor and method of manufacture  
An optical waveguide environmental sensor is provided that is capable of detecting a target gas or liquid in the ambient environment in an advantageously short period of time. The waveguide is...
7424192 Frequency conversion with nonlinear optical polymers and high index contrast waveguides  
Systems and methods for manipulating light with high index contrast waveguides clad with substances having that exhibit large nonlinear electro-optic constants χ 2 and χ 3 . Waveguides...
7421178 Left-handed materials and structures based on strong dielectric anisotropy  
Disclosed herein are exemplary embodiments of materials and structures that have a negative refractive index. For example, one exemplary embodiment is a waveguide structure comprising a first...