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| Number | Title | Issue Date |
| 7861558 | Method of making assemblies of multi-fiber with irregular hexagonal array A method of making a multi-fiber assembly with irregular hexagonal array, which includes the steps of forming a plurality of primitives each made of a plurality of fibers, said fibers having cylindrical outer surfaces of same diameter and being arranged in an irregu... | 01/04/2011 |
| 7418836 | Photonic bandgap fibers Included among the many structures described herein are photonic bandgap fibers designed to provide a desired dispersion spectrum. Additionally, designs for achieving wide transmission bands and lower transmission loss are also discussed. For example, in some fiber ... | 09/02/2008 |
| 7403686 | Fiber optic cable splicing technique The invention is a staggered splice and method for making the same. The staggered splice is used to join two multi-fiber optic cables. Each opposing pair of optic fibers is cleaved such that they all have substantially the same combined length and provide fully oper... | 07/22/2008 |
| 7357005 | Fiber optic collimator system, fiber optic collimator array, and manufacturing method of the fiber optic collimator system and fiber optic collimator array system A fiber optic collimator system, a fiber optic collimator array, and a fiber optic collimator array system, which can reduce difficulty in an alignment process, minimize a coupling loss, and prevent the optical characteristics from deteriorating. An optical fiber is... | 04/15/2008 |
| 7272956 | Method for manufacturing a multimode fiber pump power combiner A multimode to low-mode optical fiber is constructed by forming a plurality of multimode optical fibers into a fiber bundle. The bundle is then selectively heated and drawn to form a bi-tapered fiber bundle having a central straight portion in which the multimode fi... | 09/25/2007 |
| 7246949 | Device for transmitting optical signals The invention relates to a device for transmitting optical signals between at least two components disposed for rotation. The invention excels itself by the provision that at least one micro-optical component is used for beam forming or beam guidance. ... | 07/24/2007 |
| 7236671 | Fiber bundles and methods of making fiber bundles The present invention relates to fiber bundles and methods for making fiber bundles. According to one embodiment of the invention, a fused fiber bundle has a terminal section ending with an endface, and includes a plurality of optical fibers, each of the optical fib... | 06/26/2007 |
| 7221448 | Test cell for a noble gas polarizer The invention relates to a sample cell with a glass body comprising a gas inlet and a gas outlet and at least one orifice, a plane glass window is fused into the orifice, the shape and size of the window corresponds to the shape and size of the orifice, the orifice ... | 05/22/2007 |
| 7221837 | Device and method for reducing glass flow during the manufacture of microchannel plates The present invention provides a glass packing tube for use in fabricating a microchannel plate. The glass tube has a plurality of flat inner surfaces and is used to form a boule including a plurality of optical fibers located in the tube and a plurality of support ... | 05/22/2007 |
| 7149399 | Glass bonded fiber array and method for the fabrication thereof In accordance with the present invention a fiber optic array is provided. The array includes a substrate having a fiber support surface. The array further includes an optical fiber having a fiber portion that includes an un-jacketed, un-buffered optical core segment... | 12/12/2006 |
| 7146077 | Optical coupler type filter and wavelength stabilizing apparatus of light source using the same Disclosed are an optical coupler type filter, and a wavelength stabilizing apparatus of a light source using the same. The wavelength stabilizing apparatus includes an optical coupler type filter including a first waveguide provided with first and second terminals, ... | 12/05/2006 |
| 7106932 | Method and apparatus relating to optical fibers A method of joining a first optical fiber (110) to a second optical fiber (130) comprises the steps of: (i) providing a preform element (10) comprising material defining a primary elongate cavity (40); (ii) inserting the first optical fib... | 09/12/2006 |
| 7095924 | Optical filter An optical filter comprises a first mode converter converting an incident light signal propagating in an incident mode into a signal propagating in a propagation mode LPnm of order higher than that of said incident mode; a second mode converter converting the light ... | 08/22/2006 |
| 7080529 | Method for making large diameter optical waveguide having Bragg grating and being configured for reducing the bulk modulus of compressibility thereof The present invention provides a method for making a multicore large diameter optical waveguide having a cross-section of at least about 0.3 millimeters, two or more inner cores, a cladding surrounding the two or more inner cores, and one or more side holes for redu... | 07/25/2006 |
| 7076125 | Optical circuit element and production method therefor, array-form optical circuit element, optical circuit device using it The present invention relates to a device and a method for monitoring each of the propagated light beams that are propagated in each waveguide of an arrayed waveguide device and a method of fabricating the device. In the prior art, problems were encountered in deriv... | 07/11/2006 |
| 7068901 | Optical fiber preform producing method, optical fiber production method, and optical fiber An optical fiber preform comprises a central core portion having a maximal value Nc of refractive index in the center, and outside the central core portion, comprising at least a depressed portion having a minimal value Nd of refractive index, a ring portion having ... | 06/27/2006 |
| 7058267 | Method for manufacturing of an optical fiber with a decoupling interface for scattered light, use of an optical fiber and device for monitoring of the light power guided through an optical fiber Method for manufacturing of an optical fiber with a decoupling interface for scattered light to monitor the power of light guided through the optical fiber, where the optical fiber has a core having a first refractive index and a cladding surrounding the core, the c... | 06/06/2006 |
| 7046900 | Fiber-wired sheet and method for manufacturing the same The fiber-wired sheet of the present invention includes a pair of sheets facing each other and a fiber arrangement sandwiched by the pair of sheets. The pair of sheets have respective adhesive layers on the surfaces facing the fiber arrangement. The fiber arrangemen... | 05/16/2006 |
| 7040953 | Substrate for information recording media and manufacturing method thereof, and information recording medium There are provided a substrate for information recording media and a manufacturing method thereof, according to which the projection height of minute undulations formed on the substrate surfaces can be made more uniform, and variation in the projection density can b... | 05/09/2006 |
| 7037004 | Optical fiber component for spot size transition and method of making the same A large-diameter core optical fiber and a small-diameter core high optical fiber are fusion-spliced, and the spliced portion is heated to expand the core diameter of a core of the high optical fiber and form a spot size transition portion, whereby spot sizes of the ... | 05/02/2006 |
| 7031567 | Expanded beam connector system A method of coupling a high-power optical signal between an optical fiber and a mating optical component, the optical signal ranging in wavelength from x to y, and having a first diameter while propagating in a mode field within the fiber, the method comprising: (a)... | 04/18/2006 |
| 7031571 | Bragg grating and method of producing a Bragg grating using an ultrafast laser A novel Bragg grating filter in optical waveguiding fiber with suppressed cladding mode coupling and method of producing same is disclosed. The novel grating structure is induced in both the core and the cladding of the optical fiber irrespective of the photosensiti... | 04/18/2006 |
| 7024078 | Fiber device with high nonlinearity, dispersion control and gain An optical fiber is tapered, for example, by heating it with a CO2 laser. The tapering process is controlled such that the taper transition regions have taper angles selected to minimize loss. The taper waist has a diameter selected to introduce desired d... | 04/04/2006 |
| 7007513 | Method of manufacturing glass parts for connection of optical fibers, method of manufacturing mother glass to produce glass parts, and glass parts for connection of optical fibers A method of manufacturing glass parts for connection of glass fibers is provided, which can improve the accuracy of the cross-sectional size of a through hole in the glass part. A mother glass having a similar cross section to a desired cross section of a glass part... | 03/07/2006 |
| 7010203 | Optical fiber manufacturing method and optical fiber An object of the present invention is to provide an optical fiber manufacturing method and an optical fiber in which an increase in the transmission loss is suppressed by preventing hydroxyl group from entering near the core portion. This invention provides a... | 03/07/2006 |
| 6993938 | Systems and devices for fusing and fracturing fiber optic cables Systems, devices and methods for compiling and fracturing optical fibers are disclosed. In one aspect, a device is disclosed for coupling and for fracturing optical fibers, comprising a housing for receiving a first end of a first optical fiber and a second end of a... | 02/07/2006 |
| 6959131 | Achromatic fiber-optic power splitter and related methods An achromatic power splitter is formed from multiple optical fibers. The achromatic power splitter operates single mode, which permits the power splitter to operate substantially insensitive to changes in wavelength of the input light, to changes in the polarization... | 10/25/2005 |
| 6925840 | Method of making a photonic crystal preform Disclosed is a method of making a photonic crystal optical fiber preform by stacking and bonding individual glass disks. In one embodiment, each glass disk has a pattern of voids formed therethrough, and the pattern for each disk is the same. In another embodiment, ... | 08/09/2005 |
| 6921452 | Light redirective display panel and a method of making a light redirective display panel An optical display panel which provides improved light intensity at a viewing angle by redirecting light emitting from the viewing screen, and a method of making a light redirective display panel, are disclosed. The panel includes an inlet face at one end for receiv... | 07/26/2005 |
| 6922495 | Optical fiber cladding with low polarization-dependent coupling This invention relates to a method of making optical fiber having low polarization dependence. Light propagating through a cladding thereof has a mode group having a first eigenmode propagating at a first speed and a second eigenmode propagating at a second speed. M... | 07/26/2005 |
| 6920266 | Integrated optical directional coupler The construction of directional couplers according to the invention with the aid of integrated optical waveguides makes it possible to produce such directional couplers in series very compactly and relatively easily. In this connection, the integrated optical wavegu... | 07/19/2005 |
| 6865322 | Fiber optic device with enhanced resistance to environmental conditions and method A method for producing fiber optic devices having improved intrinsic resistance to external environmental conditions and a fiber optic device made my the method are disclosed. The fabrication method produces an optic device that is treated with deuterium. The method... | 03/08/2005 |
| 6837075 | Glass fiber fixative and fixing process A glass fixative composition for bonding glass materials to non-glass materials is provided. The fixative composition is selected for its thermal expansion coefficient, its viscosity, its adhesion to glass, melting point, and bond strength. The glass fixative is in ... | 01/04/2005 |
| 6827508 | Optical fiber fusion system An automated fusion system includes a draw assembly for holding optical fibers and for applying a tension to the fibers. The fibers are held substantially parallel to each other in the draw assembly. The system also includes a removal station that etches or strips b... | 12/07/2004 |
| 6820445 | Attachment of optical elements The invention features a method for attaching a surface of a first optical element to a surface of a second optical element. The method includes: providing a bonding glass on at least one of the surfaces, wherein the bonding glass is selected to match the refractive... | 11/23/2004 |
| 6785448 | Coupling method of coupler A coupling method of a coupler includes the following steps: (1) making a pair of optical fibers with different photosensitivity fused and drawn, (2) irradiating specific portions of the pair of optical fibers by intense ultraviolet light at the same time for making... | 08/31/2004 |
| 6780274 | Fabrication of collimators employing optical fibers fusion-spliced to optical elements of substantially larger cross-section areas A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) having a surface that has a comparatively larger cross-sectional area than the sur... | 08/24/2004 |
| 6777358 | Sealing glass composition A glass composition for a seal consists essentially of 70-75 wt % of PbO, 3-7 wt % of PbF2, 5-8 wt % of Bi2O3, 5-7 wt % of B203, 2-5 wt % of ZnO, 1-3 wt % of Fe2O3, 0-2 wt % of CuO, 0-2% of... | 08/17/2004 |
| 6763685 | Fabrication of multiplexing and demultiplexing single-mode fiber optic couplers Multiplexing and demultiplexing single-mode fiber optic couplers are fabricated by aligning two single-mode fibers which have been stripped of their protective plastic jackets and cleaned so that they are held in parallel contact with each other, and then fusing the... | 07/20/2004 |
| 6758935 | Fabrication of collimators employing optical fibers fusion-spliced to optical elements of substantially larger cross-sectional areas A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano—plano pellet) having a surface that has a comparatively larger cross-sectional area than the s... | 07/06/2004 |
