Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8189977 | Optical fibers and optical fiber devices with total dispersion greater than material dispersion Disclosed are optical fiber devices incorporating optical fibers with total dispersion greater than material dispersion, and with preferred dispersion values less than +50 ps/nm-km. The desired dispersion values are obtained when light resides substantially in a sin... | 05/29/2012 |
| 8175436 | Optical fibers and optical fiber devices with total dispersion greater than material dispersion Disclosed are optical fiber devices incorporating optical fibers with total dispersion greater than material dispersion, and with preferred dispersion values less than +50 ps/nm-km. The desired dispersion values are obtained when light resides substantially in a sin... | 05/08/2012 |
| 8175435 | Optical fibers and optical fiber devices with total dispersion greater than material dispersion Disclosed are optical fiber devices incorporating optical fibers with total dispersion greater than material dispersion, and with preferred dispersion values less than +50 ps/nm-km. The desired dispersion values are obtained when light resides substantially in a sin... | 05/08/2012 |
| 8165441 | 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 surrounded by a region comprising first features. The USCF further inclu... | 04/24/2012 |
| 8139911 | Light-illuminating probe and fundus observing apparatus, fundus surgery apparatus, endoscope, and catheter using the light-illuminating probe A light-illuminating probe with increased spatial spread of an external illumination light and a fundus observing apparatus, a fundus surgery apparatus, and an endoscope using the light-illuminating probe are provided. The light-illuminating probe includes a light-t... | 03/20/2012 |
| 8111961 | Accelerated aging of phosphorus-doped optical fibers Adverse hydrogen aging limitations in multiply-doped optical fibers are overcome by passivating these optical fibers using a deuterium passivation process. This treatment essentially pre-reacts the glass with deuterium so that the most active glass sites are no long... | 02/07/2012 |
| 8098970 | Composite waveguide A composite waveguide includes a central core configured to transmit a plurality of modes and at least one side core helically wound about the central core and configured to be selectively coupled to at least a portion of the plurality of modes in the central core. | 01/17/2012 |
| 8094984 | Semiconductor constructions, methods of forming semiconductor constructions, light-conducting conduits, and optical signal propagation assemblies The invention includes optical signal conduits having rare earth elements incorporated therein. The optical signal conduits can, for example, contain rare earth elements incorporated within a dielectric material matrix. For instance, erbium or cerium can be within s... | 01/10/2012 |
| 8073300 | Arrangement comprising a fiber-optic waveguide An arrangement comprising a fiber-optic waveguide (10) and a detection device (25), wherein the fiber-optic waveguide (10) comprises a core region (10E) and a cladding region (10C) surrounding the core region (10E), wherein ... | 12/06/2011 |
| 8059930 | Optical fiber and method for fabricating the same An optical fiber includes a core (1a) having an oblong rectangular or square cross section and made of quartz, and a cladding (2) surrounding the core (1a), having a circular outer cross-sectional shape, and made of resin. ... | 11/15/2011 |
| 8055109 | 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 cladding features such as air-holes. Additional embodiments described her... | 11/08/2011 |
| 8041170 | Photonic bandgap fiber A photonic bandgap optical fiber and a method of manufacturing said fiber is disclosed. The photonic bandgap fiber comprises a core region surrounded by cladding region. The cladding region includes a background optical material having a first refractive index, and ... | 10/18/2011 |
| 8041171 | Nanocomposites This invention provides composite materials comprising nanostructures (e.g., nanowires, branched nanowires, nanotetrapods, nanocrystals, and nanoparticles). Methods and compositions for making such nanocomposites are also provided, as are articles comprising such co... | 10/18/2011 |
| 8014644 | Optical waveguide, optical waveguide module and method for forming optical waveguide An optical waveguide comprising a core and a clad characterized in that a desired part is heated and transited to machining strain release state, the part transited to the machining strain release state is curved with a specified bending radius and transited to mach... | 09/06/2011 |
| 8000575 | Polarization maintaining and single polarization optical fiber An optical fiber, comprising: (i) a core, (ii) a cladding surrounding the core, (iii) at least one stress member adjacent the fiber core and situated within the cladding, said stress member comprising silica co-doped with B and F. ... | 08/16/2011 |
| 8000574 | Method of generating supercontinuum optical radiation, supercontinuum optical radiation source, and use thereof A method of generating supercontinuum optical radiation, the method comprising: (a) providing an optical waveguide (22), said optical waveguide exhibiting a dispersion characteristic of guided optical radiation, said dispersion characteristic comprising: (i) ... | 08/16/2011 |
| 7978945 | Nonlinearity compensation in a fiber optic communications system An optical communications link is described, comprising first and second fiber lines in substantial scaled translational symmetry by a common scaling factor with respect to a second-order dispersion coefficient profile (oppositely signed) and with respect to at leas... | 07/12/2011 |
| 7933482 | Optical fiber probe tips and methods for fabricating same Optical fiber probe tips and methods for fabricating the same are presented. One method entails immersing a distal end of an optical fiber having a cladding and a core into an etching solution and simultaneously etching the cladding and the core using the etching so... | 04/26/2011 |
| 7920767 | Suppression of higher-order modes by resonant coupling in bend-compensated optical fibers The effect of bending is anticipated in an optical fiber design, so that resonant coupling remains an effective strategy for suppressing HOMs. The index profile of the fiber and its bend radius are configured so that there is selective resonant coupling of at least ... | 04/05/2011 |
| 7907808 | Optical waveguide and method for manufacturing the same A self-written branched optical waveguide is formed. A laser beam 2 from a laser source (not shown) is focused with a lens 3 onto the face of incidence 10 of an optical fiber 1. The laser beam of an LP11 mode was emitted... | 03/15/2011 |
| 7907809 | Ultra-low refractive index high surface area nanoparticulate films and nanoparticles Nanoparticles having a mean particle size of less than about 25 nanometers and a mean pore size of less than 10 nanometers, and a mean surface area of at least 500 m2/g; nanoporous films of such nanoparticles; and composites and devices containing such na... | 03/15/2011 |
| 7903916 | Optical waveguide The invention relates to an optical waveguide capable of extracting light especially from arbitrary positions of the same. An object of the invention is to provide an optical waveguide capable of extracting light efficiently from arbitrary positions of the same. To ... | 03/08/2011 |
| 7876990 | Low loss optical fiber An optical waveguide fiber is provided that includes a core and a cladding, where the core includes an alpha profile, wherein alpha (α) is greater than 2.5 and less than 3.0. The core and the cladding provide a fiber with an attenuation of less than 0.331 dB/km at ... | 01/25/2011 |
| 7869680 | Nonlinearity compensation in a fiber optic communications system An optical communications link is described, comprising first and second fiber lines in substantial scaled translational symmetry by a common scaling factor with respect to a second-order dispersion coefficient profile (oppositely signed) and with respect to at leas... | 01/11/2011 |
| 7865049 | Fiber coating processing and slitting for non-confined light leakage An optical fiber and methods of processing and manufacturing an optical fiber comprising a core, a cladding and a coating covering a segment of the cladding proximate to an end of the optical fiber are presented where patterned apertures are provided in the coating ... | 01/04/2011 |
| 7865050 | Equalizing modal delay of high order modes in bend insensitive multimode fiber Described are multimode optical fibers in which the differential in the mode delay for higher order modes is reduced for bending insensitive MMF. The result is preservation of low differential mode delay and high bandwidth while low bend loss is achieved. The design... | 01/04/2011 |
| 7848607 | 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 cane, which is then inserted into an outer portion, to form a secondary... | 12/07/2010 |
| 7848606 | Eliminating crystals in non-oxide optical fiber preforms and optical fibers A method is provided for eliminating crystals in non-oxide optical fiber preforms as well as optical fibers drawn therefrom. The optical-fiber-drawing axis of the preform is aligned with the force of gravity. A magnetic field is applied to the preform as it is heate... | 12/07/2010 |
| 7844154 | Optical fiber for optical power transmission An optical fiber adapted to carry optical power for powering an electrical device and also optionally adapted to carry optical data for signal processing. The optical fiber capable of carrying both optical data and optical power includes a central data waveguide reg... | 11/30/2010 |
| 7844153 | Active energy ray-curable organopolysiloxane resin composition, optical transmission component, and manufacturing method thereof An active energy ray (e.g. UV rays)-curable organopolysiloxane resin composition comprises (A) 100 parts by weight of an organopolysiloxane resin containing epoxy groups and aromatic hydrocarbon groups, (B) 0.05 to 20 parts by weight of a photo acid generator, (C) 0... | 11/30/2010 |
| 7840110 | Optical waveguide An optical waveguide fiber having a high threshold for stimulated Brillouin scattering (SBS). The SBS threshold is increased by an acoustically antiguiding configuration of the fiber. An acoustic configuration comprises one or more acoustic regions having acoustic v... | 11/23/2010 |
| 7809224 | Composite waveguide A composite waveguide includes a central core configured to transmit a plurality of modes and at least one side core helically wound about the central core and configured to be selectively coupled to at least a portion of the plurality of modes in the central core. | 10/05/2010 |
| 7809226 | Imaging system and related techniques A method and apparatus for imaging using a double-clad fiber is described. ... | 10/05/2010 |
| 7809225 | Imaging system and related techniques A method and apparatus for imaging using a double-clad fiber is described. ... | 10/05/2010 |
| 7809223 | Polarization-maintaining optical fiber, method of manufacturing polarization-maintaining optical-fiber connecting portion, and polarization-maintaining optical-fiber connecting portion A polarization-maintaining optical fiber includes a core region and a cladding region formed around the core region. The cladding region has a refractive index lower than a refractive index of the core region. A refractive index profile of the core region is either ... | 10/05/2010 |
| 7805038 | Birefringent photonic bandgap optical waveguide A birefringent elongate waveguide for guiding light, comprises: a core region (110), comprising an elongate region of relatively low refractive index; and a cladding region (100), comprising elongate regions (105) of relatively low refractive in... | 09/28/2010 |
| 7805039 | Single mode optical fiber with improved bend performance Methods and apparatus relate to optical fibers suitable for use in sensing applications exposed to radiation environments. The fibers include a core of pure silica or chlorine doped silica surrounded by a fluorinated silica cladding. These glasses for the core and c... | 09/28/2010 |
| 7787730 | Optical fiber and broadband light source An optical fiber and a broadband light source that can generate SC light having a broader bandwidth. A broadband light source 1 is equipped with a seed light source 11 and an optical fiber 12. The seed light source 11 outputs light having... | 08/31/2010 |
| 7787728 | Optical mode noise averaging device An optical mode noise averaging device including a multimode optical fiber and means for averaging a modal noise induced signal level variation of light propagating within the multimode optical fiber. The device may average modal noise induced signal level variation... | 08/31/2010 |
| 7787729 | 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 cladding features such as air-holes. Additional embodiments described her... | 08/31/2010 |
