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| Number | Title | Issue Date |
| 8218937 | Optical film, image display device, diethynylfluorene, and polymer thereof An optical film of the present invention comprises a polyimide-based polymer represented by the following general formula (V). The optical film of the present invention exhibits an optical property such that wavelength disper... | 07/10/2012 |
| 8055115 | Optically active glass and optical fiber with reduced photodarkening and method for reducing photodarkening An optically active glass and an optical fiber comprising such glass, having reduced photodarkening properties are provided. The optically active glass is mainly composed of silica representing from about 50 to 98 mol % of the glass. It also includes at least one ac... | 11/08/2011 |
| 8050531 | Dendrimer based terahertz generator A high efficiency electro-optic dendrimer based technology for nanophotonic integrated circuit devices is presented. In particular, a high power terahertz (THz) source is implemented using an electro-optic dendrimer via electro-optic rectification. Electro-optic rec... | 11/01/2011 |
| 8014647 | Optical guide including nanoparticles and manufacturing method for a preform intended to be shaped into such an optical guide The invention relates to an optical fiber comprising a gain medium which is equipped with: a core (22) which is formed from a transparent material and nanoparticles (24) comprising a doping element and at least one element for enhancing the use of said... | 09/06/2011 |
| 8000577 | Optical guide including nanoparticles and manufacturing method for a preform intended to be shaped into such an optical guide The invention relates to an optical fiber comprising a gain medium which is equipped with: a core (22) which is formed from a transparent material and nanoparticles (24) comprising a doping element and at least one element for enhancing the use of said... | 08/16/2011 |
| 7865055 | Coated optical fibers The invention relates to coated optical fibers comprising soft primary coatings and to such primary coatings for protecting glass optical fibers having a sufficient high resistance against cavitation. In particular, the primary coatings have a cavitation strength at... | 01/04/2011 |
| 7844162 | Method for fabricating IR-transmitting chalcogenide glass fiber A thermally stable chalcogenide glass, a process for making the same, and an optical fiber drawn therefrom are provided. A chalcogenide glass having the composition Ge(5−y)As(32−x)Se(59+x)Te(4+y) (0≦y≦1 and 0≦xâ‰... | 11/30/2010 |
| 7831126 | Waveguide core and biosensor A waveguide core made of hydrogel serves as an immobilization matrix having receptor molecules embedded therein. ... | 11/09/2010 |
| 7822314 | Segmented acoustic core photonic crystal fiber laser Stimulated Brillouin scattering (SBS) in a photonic crystal fiber is suppressed by doping the individual core segments such that the Brillouin frequency of each segment is sufficiently different from the neighboring segments that Brillouin scattered light from one c... | 10/26/2010 |
| 7817896 | Optical waveguides containing quantum dot guiding layers and methods of manufacture Planar waveguides having quantum dots and methods of manufacture of the planar waveguide are described. ... | 10/19/2010 |
| RE41438 | Fiber amplifier with one single mode core having modified gain spectrum Disclosed is a fiber amplifier system including a gain fiber having a single-mode core containing dopant ions capable of producing stimulated emission of light at wavelength λs when pumped with light of wavelength λp. Absorbing ion filtering ... | 07/13/2010 |
| 7729588 | Optical fiber, manufacturing method of the same, and optical amplifier An optical fiber includes: a first core portion doped with rare earth ions; a second core portion having a lower refractive index than that of the first core portion, provided along an outer circumference of the first core portion, and doped with the rare earth ions... | 06/01/2010 |
| 7706659 | Coated optical fibers The invention relates to coated optical fibers comprising soft primary coatings and to such primary coatings for protecting glass optical fibers having a sufficient high resistance against cavitation. In particular, the primary coatings have a cavitation strength at... | 04/27/2010 |
| 7693388 | Thermally stable IR transmitting chalcogenide glass A thermally stable chalcogenide glass, a process for making the same, and an optical fiber drawn therefrom are provided. A chalcogenide glass having the composition Ge(5−y)As(32−x)Se(59+x)Te(4+y) (0≦y≦1 and 0≦xâ‰... | 04/06/2010 |
| 7689093 | 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 (|Δn1|) with pure silica greater than 1.5×10−3, a depressed cladding having at least 1.2 weight percent... | 03/30/2010 |
| 7680390 | Polymer clad optical fiber A polymer clad optical fiber is provided in which, if the diameter of an inner core is taken as a1, and the diameter of an outer core is taken as a2, and if a ratio X (which=a22/a12) between a cross-s... | 03/16/2010 |
| 7646959 | Plastic optical fiber and manufacturing method thereof, and optical transmission system A POF (12) comprises a core (65) having a radius of R1, an outer shell (66) and an outermost shell (67). The core (65) includes concentric layers. A first layer (61) is at the periphery side and an nth layer (64 | 01/12/2010 |
| 7630611 | Optical fiber and method of manufacturing an optical fiber The present invention relates to a method of manufacturing an optical fiber by carrying out one or more chemical vapor deposition reactions in a substrate tube, with the optical fiber exhibiting a low sensitivity to the hydrogen-induced attenuation losses at a trans... | 12/08/2009 |
| 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 and fluorine, and at least one lower-concentration codoped layer made... | 10/20/2009 |
| 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 is doped with Aluminum in at least one region of the core, such that e... | 07/07/2009 |
| 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 K2O, Na2O, LiO2, Rb2O, Cs2O and mixtures thereof in an average concentration in sai... | 05/19/2009 |
| 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 semiconductor substrate. A ZnO waveguide can be provided in the oxide ... | 05/05/2009 |
| 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 (|Δn1|) with pure silica greater than 1.5×10−3, a depressed cladding having at least 1.2 weight percent... | 04/28/2009 |
| 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 optical communication, and can be used as light source, optical amplifi... | 04/14/2009 |
| 7505667 | 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 about the core and has an acoustic shear velocity which is less than t... | 03/17/2009 |
| 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 fluorine-doped depressed cladding layer 16. The tin-doped ... | 02/17/2009 |
| 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 being selected from the group of Li, Na, K, Rb, Cs and Fr and Y being se... | 02/17/2009 |
| 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 fiber lasers and amplifiers. The index of refraction of the glass may... | 11/11/2008 |
| 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 nf/nr (where nf is the refractive index of the inorganic filler and ... | 10/28/2008 |
| 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 refractive index difference of the core based on the refractive index ... | 10/21/2008 |
| 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 material. Therefore, by letting a known material transparent to terahertz... | 10/21/2008 |
| 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 nm-1530 nm). According to the present invention, silica is used as a b... | 10/21/2008 |
| 7437047 | Optical materials with selected index-of-refraction Photosensitive optical materials are used for establishing more versatile approaches for optical device formation. In some embodiments, unpatterned light is used to shift the index-of-refraction of planar optical structures to shift the index-of-refraction of the ph... | 10/14/2008 |
| 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 improvement teaches improvements to an optical transport system to all... | 10/07/2008 |
| 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 increases as the distance from the ... | 09/30/2008 |
| 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 nanoparticles. The substrate surface is completely immersed in the solution in... | 09/30/2008 |
| 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 about the core and has an acoustic shear velocity which is less than t... | 08/26/2008 |
| 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 n1; (ii) a silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said claddi... | 08/12/2008 |
| 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 core. The central region contains one of germanium and phosphorus, and... | 07/29/2008 |
| 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 generating light at a lower wavelength; a means part for individually contro... | 07/22/2008 |
