Matches 1 - 50 out of 107 1 2 3 >


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US20120148207 Waveguides Configured To Simultaneously Guide Electromagnetic Waves Of Different Wavelengths  
In one embodiment, an waveguide includes a primary core configured to guide electromagnetic waves having relatively long wavelengths, a unit cell having a core configured to guide electromagnetic...
US20130064515 TWO-PART SURGICAL WAVEGUIDE  
An apparatus includes a light source configured to provide radiation at a wavelength and a conduit configured to direct radiation at a wavelength from the light source to a target location of a...
US20060104582 Fabrication of microstructured optical fibre  
Microstructured optical fibre is fabricated using extrusion. The main design of optical fibre has a core suspended in an outer wall by a plurality of struts. A specially designed extruder die is...
US20110052128 Optical Fiber Preform With Improved Air/Glass Interface Structure  
An optical fiber preform comprising a plurality of longitudinal air holes is subjected to a thermal treatment (i.e., heating), coupled with the application of a compressive force on either end of...
US20080037943 Light pipe having a structure of enhancing an emission of a light  
The present invention is directed to a light pipe having a structure of enhancing an emission of a light. According to one embodiment of the present invention, a hollow light pipe comprises a base...
US20130136409 HOLE-ASSISTED OPTICAL FIBER  
A hole-assisted optical fiber includes a core portion and a cladding portion that includes an inner cladding layer, an outer cladding layer, and holes formed around the core portion. A diameter of...
US20050018986 Ring structures in optical fibres  
This invention provides an optical fibre (1) incorporating a body (2), and an array of longitudinally extending holes or inclusions (3) formed in the body (2), the holes or inclusions (3) having a...
US20090067793 Multiple Core Microstructured Optical Fibre  
A multicore optical fibre includes a microstructured cladding material formed from a plurality of cladding elements arranged in an array and each cladding element comprising at least two different...
US20110091176 HOLEY FIBERS  
A holey fiber with significantly large effective core area is provided. The holey fiber comprises a core portion and a cladding portion at the circumference of the core portion. The cladding...
US20110026890 HOLEY FIBERS  
A holey fiber with significantly large effective core area is provided. The holey fiber comprises a core portion and a cladding portion at the circumference of the core portion. The cladding...
US20110149286 LIQUID CORE WAVEGUIDE ASSEMBLY AND DETECTING SYSTEM INCLUDING THE SAME  
A liquid core waveguide assembly includes: a waveguide-forming body formed with a waveguide channel and first and second fiber channels, transparent first and second partition walls, and a liquid...
US20090028488 FABRICATION OF NANOWIRES  
A method of forming a nanowire is disclosed. In one embodiment, a primary preform is formed comprising at least one central region and a support structure. The primary preform is then drawn to a...
US20120314995 ULTRA SMALL CORE FIBER WITH DISPERSION TAILORING  
Various embodiments of optical fiber designs and fabrication processes for ultra small core fibers (USCF) are disclosed. In some embodiments, the USCF includes a core that is at least partially...
US20120141079 PHOTONIC BAND GAP FIBERS USING A JACKET WITH A DEPRESSED SOFTENING TEMPERATURE  
The present invention is generally directed to a photonic bad gap fiber and/or fiber preform with a central structured region comprising a first non-silica based glass and a jacket comprising a...
US20110188824 MANUFACTURING METHOD OF PHOTONIC BAND GAP FIBER AND PHOTONIC BAND GAP FIBER  
A manufacturing method of a photonic band gap fiber which includes measuring a hole diameter d0 and a distance-between-holes Λ0 in a preliminary experiment capillary body by first drawing a...
US20150093085 LOW-LATENCY, HOLLOW-CORE OPTICAL FIBER WITH TOTAL INTERNAL REFLECTION MODE CONFINEMENT  
Air core optical fiber structures in which the cladding is composed of an engineered optical metamaterial having a refractive index less than unity for at least one specific wavelength band and...
US20070110378 Light-emitting form exhibiting an aura  
A light-emitting form comprises an elongated light guide illuminated by a light source (10a) such as an LED that sheds light into the end of the light guide. The light guide comprises a tubular...
US20060024009 Single mode photonic crystal optical fiber  
A single mode photonic crystal fiber including a core with a geometric radius ρ, and a cladding surrounding the core, the cladding including a plurality of cylindrical air holes which have a...
US20130294736 WIDE BANDWIDTH, LOW LOSS PHOTONIC BANDGAP FIBERS  
Various embodiments include photonic bandgap fibers (PBGF). Some PBGF embodiments have a hollow core (HC) and may have a square lattice (SQL). In various embodiments, SQL PBGF can have a cladding...
US20130114936 WIDE BANDWIDTH, LOW LOSS PHOTONIC BANDGAP FIBERS  
Various embodiments include photonic bandgap fibers (PBGF). Some PBGF embodiments have a hollow core (HC) and may have a square lattice (SQL). In various embodiments, SQL PBGF can have a cladding...
US20120141080 HEXAGONAL TUBE STACKING METHOD FOR THE FABRICATION OF HOLLOW CORE PHOTONIC BAND GAP FIBERS AND PREFORMS  
The present invention is generally directed to a method of making a hollow-core photonic band gap preform from a specialty glass by pressing a specialty glass through a die to form a tube wherein...
US20080050077 Photonic Crystal Fiber  
A cladding 12 of a photonic crystal fiber 10 has first to fourth air hole layers 15 to 18 formed around a core 11 one after another in the radial direction of the fiber. In forming the fiber,...
US20090180746 HOLEY FIBER  
A holey fiber includes a core region formed at a center of the fiber and a cladding region formed on an outer circumference of the core region. The cladding region has a plurality of air holes...
US20120033923 HOLEY SINGLE-MODE OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM USING SAME  
Provided is a holey single-mode optical fiber including a core not having holes, and a clad having holes extending in a longitudinal direction, in which a refraction index of the core is larger...
US20050185907 Stimulated brillouin scattering phase conjugate mirror utilizing photonic bandgap guide and method  
A phase conjugate mirror comprising a photonic band gap light guide and a stimulated Brillouin scattering medium disposed in operational relation thereto. In specific embodiments, the light guide...
US20090208372 SHEATH FLOW DEVICE AND METHOD  
A sheath flow system having a channel with at least one fluid transporting structure located in the top and bottom surfaces situated so as to transport the sheath fluid laterally across the...
US20150198764 HIGH-BIREFRINGENCE HOLLOW-CORE FIBERS AND TECHNIQUES FOR MAKING SAME  
A hollow core fiber has a cladding comprising a matrix of cells, wherein each cell comprises a hole and a wall surrounding the hole. The fiber further has a hollow core region comprising a core...
US20080050078 APPARATUS AND METHODS USING HOLLOW-CORE FIBER TAPERS  
An optical filter and methods of filtering are provided. The optical filter includes a hollow-core fiber including a first portion and a second portion. The first portion includes a hollow core...
US20060098694 Optical fiber for fiber laser, fiber laser, and laser oscillation method  
An optical fiber for a fiber laser has: a hollow core region; an inner cladding region having a plurality of holes that extend in a longitudinal direction of the optical fiber and surround the...
US20060263024 Single mode propagation in fibers and rods with large leakage channels  
Various embodiments include large cores fibers that can propagate few modes or a single mode while introducing loss to higher order modes. Some of these fibers are holey fibers that comprising...
US20120275750 Polarization-Maintaining Optical Fiber With Pure Silica Core  
A polarization-maintaining (PM) optical fiber has a pure silica core surrounded by a cladding having a region with randomly arranged voids. Stress members are arranged in the cladding on opposite...
US20090245729 ULTRA SMALL CORE FIBER WITH DISPERSION TAILORING  
Various embodiments of optical fiber designs and fabrication processes for ultra small core fibers (USCF) are disclosed. In some embodiments, the USCF includes a core that is at least partially...
US20070154154 Fused Array Preform Fabrication Of Holey Optical Fibers  
This invention pertains to a holey fiber and to a fabrication method for making the fiber. The holey fiber can transmit light by total internal reflection or by Bragg diffraction, can be single...
US20130081447 Substrate-Integrated Hollow Waveguide Sensors  
Methods and apparatuses are provided that greatly expand the utility of conventional hollow waveguide-based sensors via either straight, substrate-integrated channels or via meandering (e.g.,...
US20090230028 LIGHT GUIDING FLUID CONDUIT HAVING A LIQUID-FILLED INTERSPACE BETWEEN INNER AND OUTER CONDUITS  
A fluid conduit comprises an inner conduit configured for conducting a fluid, and an outer conduit circumferentially enclosing the inner conduit. The outer conduit's inner diameter is larger than...
US20050002626 Photonic crystal fiber, light controller, projector, and method of manufacturing photonic crystal fiber  
A photonic crystal fiber has a configuration in which a multiplicity of voids are arranged along the longitudinal direction of the fiber and with a regular sectional structure, a terminal end...
US20100303429 Microstructured Optical Fiber Draw Method with In-Situ Vacuum Assisted Preform Consolidation  
A method and apparatus for making a substantially void-free microstructured optical fiber using a one-step process is provided. A preform for the optical fiber is prepared, comprising an outer...
US20060120677 Optical waveguide, method of its production, and its use  
An optical waveguide with a longitudinal direction and a cross-section perpendicular thereto for propagating optical radiation at a free-space wavelength λ, the optical waveguide comprising: a...
US20090208175 HOLLOW FIBER AND METHOD FOR FABRICATING SAME  
A hollow fiber has a hollow tube, a reflecting film formed on an inner wall of the hollow tube, and the reflecting film is a first metal film formed by baking a first metal nano particle solution...
US20050084229 Light insertion and dispersion system  
A light source injects light into a translucent light guide, particularly using high-power LEDs. A core to the light guide contains a homogenous mixture of fluid and a light dispersing agent to...
US20060133753 Hole assisted fiber device and fiber preform  
A hole-assisted fiber comprises a core region and a cladding region, where the cladding region includes multiple substantially elliptical holes spaced apart from each other to surround the core...
US20150104141 UNIFORM UV EFFICIENT LIGHT DIFFUSING FIBER  
Light diffusing optical fibers for use in ultraviolet illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for...
US20150036701 LARGE CORE HOLEY FIBERS  
Holey fibers provide optical propagation. In various embodiments, a large core holey fiber comprises a cladding region formed by large holes arranged in few layers. The number of layers or rows of...
US20130089112 LARGE CORE HOLEY FIBERS  
Holey fibers provide optical propagation. In various embodiments, a large core holey fiber comprises a cladding region formed by large holes arranged in few layers. The number of layers or rows of...
US20080050076 Low loss photonic waveguide having high index contrast glass layers  
A low-loss photonic waveguide in the form of a Bragg optical fiber is provided that includes a dielectric core region extending along a waveguide axis that is characterized by a low amount of...
US20110103758 OPTICAL FIBER AND METHOD OF MANUFACTURING THE SAME  
An optical fiber comprising: a core formed in a center axis area; an inner clad layer, disposed around the core, having a refractive index smaller than that of the core; a pore layer, disposed...
US20090097808 Fluid waveguide and uses thereof  
The invention relates to methods and apparatuses for guiding and emitting electromagnetic radiation from a fluid waveguide. Various methods for changing optical properties (e.g., refractive index,...
US20150255657 WAVEGUIDE ASSISTED SOLAR ENERGY HARVESTING  
A photovoltaic (PV) system includes a fiber optical waveguide comprising an active core that hosts material configured to absorb and emit light, a cladding layer surrounding the active core, the...
US20140000704 WAVEGUIDE ASSISTED SOLAR ENERGY HARVESTING  
A photovoltaic (PV) system includes a fiber optical waveguide comprising an active core that hosts material configured to absorb and emit light, a cladding layer surrounding the active core, the...
US20090097809 Ferroelectric all-polymer hollow bragg fibers for terahertz guidance  
A method for fabricating a terahertz waveguide comprises forming a multilayer reflector formed of alternating layers of first and second polymer materials with distinct refractive indices, and...

Matches 1 - 50 out of 107 1 2 3 >