Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7711238 | Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same An optical fiber that includes a core containing a first concentration of germanium, an inner cladding arranged on the core, the inner cladding containing a second concentration of germanium and having a first diffusion coefficient, and an outer cladding arranged on... | 05/04/2010 |
| 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 |
| 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 |
| 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 |
| 7409134 | Control of output beam divergence in a semiconductor waveguide device A semiconductor laser device incorporates a beam control layer for reducing far field and beam divergence. Within the beam control layer, a physical property of the semiconductor material varies as a function of depth through, the beam control layer, by provision of... | 08/05/2008 |
| 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 |
| 7382956 | Optical fibers The present invention provides an optical fiber enabling signal transmission in a wider band, which is applicable to optical transmission not only in the 1.3 μm wavelength band but also in the 1.55 μm wavelength band, as a transmission medium of a WDM optical comm... | 06/03/2008 |
| 7378292 | Method of fabricating semiconductor optical device Provided is a method of fabricating a semiconductor optical device for use in a subscriber or a wavelength division multiplexing (WDM) optical communication system, in which a laser diode (LD) and a semiconductor optical amplifier (SOA) are integrated in a single ac... | 05/27/2008 |
| 7379642 | 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 embedded within a base material. The shrinkage-reduction members can be... | 05/27/2008 |
| 7370957 | Ink jet recording apparatus An ink jet recording apparatus which includes a recording head, and forms an image by ejecting printing liquid including a volatile organic compound (VOC) from the recording head onto a recording medium, wherein the ink jet recording apparatus includes a volatile or... | 05/13/2008 |
| 7372041 | Neutron detectors and related methods The present invention relates generally to neutron detecting scintillators and related methods and devices. A neutron detecting scintillator includes a plurality of microcapillary tubes loaded with a scintillator composition comprising a plastic scintillator and a n... | 05/13/2008 |
| 7362429 | Opaque additive to block stray light in amorphous fluoropolymer light-guiding flowcells The present invention is directed to the use of a light absorbing wall material to eliminate stray light paths in light-guiding structures, such as those used for HPLC absorbance detection. More specifically, the present invention relates to the use of carbon-doped ... | 04/22/2008 |
| 7362939 | Optical fiber for long period grating, long period grating component and manufacturing method of the same This invention relates to an optical fiber for long period grating (LPG), LPG components, and manufacturing method of LPG used as a mode coupler, an optical filter, etc. The optical fiber for LPG comprises a core layer, a first cladding layer that surrounds said cor... | 04/22/2008 |
| 7358206 | UV transmitting glasses The present invention relates to a boroaluminosilicate glass which exhibits excellent UV transmission. In particular, the present invention is directed at an alkali fluorine-doped boroaluminosilicate glass comprising, in mole percent on the oxide basis, of 30-80% Si... | 04/15/2008 |
| 7356227 | Optical switch, optical modulator and wavelength variable filter An optical switch, an optical modulator, and a wavelength variable filter each have a simple configuration, which requires only a low driving voltage, which is independent of polarization, and which can operate at high speed. An optical switch includes a 3-dB couple... | 04/08/2008 |
| 7349611 | Photonic bandgap fibre, and use thereof A mircrostructured optical fiber that guides light in a core region, where the fiber has a cladding region that includes a background material and a number of cladding features or elements that are elongated in the longitudinal direction of the fiber and have a high... | 03/25/2008 |
| 7346258 | Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same An optical fiber that includes a core containing a first concentration of germanium, an inner cladding arranged on the core, the inner cladding containing a second concentration of germanium and having a first diffusion coefficient, and an outer cladding arranged on... | 03/18/2008 |
| 7340147 | Optical waveguide material and optical waveguide The invention provides an optical waveguide material whose refractive index can be tailored without changing the ratio of Ta and Nb. An optical waveguide of this invention comprising an under-clad layer 1 and a core 2 that is formed on the under-clad l... | 03/04/2008 |
| 7327925 | Photosensitive acrylate composition and waveguide device A photosensitive composition suitable for practical waveguide devices is provided. The photosensitive composition comprises at least one multifunctional acrylate prepared from a fluorinated multifunctional alcohol and at least one photoinitiator. The said compositio... | 02/05/2008 |
| 7324278 | Black matrix light guide screen display Provided is a black matrix light guide screen display. In a particular embodiment, provided are a plurality of aligned light guides, each having an input end, a midsection and a magnifying output end. A black matrix material is disposed adjacent to the light guides ... | 01/29/2008 |
| 7323353 | Resonator for thermo optic device A resonator for thermo optic devices is formed in the same process steps as a waveguide and is formed in a depression of a lower cladding while the waveguide is formed on a surface of the lower cladding. Since upper surfaces of the resonator and waveguide are substa... | 01/29/2008 |
| 7317847 | Optical fibers, devices and methods for making same The invention relates to an asymmetric optical fiber that includes a core and a functional cladding that surrounds substantially half of the core along at least a portion of the fiber. The asymmetric optical fiber may include substantially parallel electrodes dispos... | 01/08/2008 |
| 7316986 | Glass ceramics for laser systems A glass-ceramic material, particularly for elements in laser systems, and a method for preparing same. The glass-ceramic material may be used for an optical fiber for communication systems and laser systems. The glass-ceramic may include gahnite crystals and optiona... | 01/08/2008 |
| 7315019 | Arrays of optical confinements and uses thereof The present invention relates to optical confinements, methods of preparing and methods of using them for analyzing molecules and/or monitoring chemical reactions. The apparatus and methods embodied in the present invention are particularly useful for high-throughpu... | 01/01/2008 |
| 7313308 | Optical analysis of molecules The present invention relates to optical confinements, methods of preparing and methods of using them for analyzing molecules and/or monitoring chemical reactions. The apparatus and methods embodied in the present invention are particularly useful for high-throughou... | 12/25/2007 |
| 7302119 | Polymer phase modulator An optical phase modulator comprising a plurality of non-polarizing waveguides having a layered stack including a core between at least one layer of cladding material, wherein the core is constructed of electro-optic material(s), wherein the layers of cladding mater... | 11/27/2007 |
| 7286741 | Silica optical waveguide and method of manufacturing the same The invention relates to a silica optical waveguide having a clad layer and a core formed from a silica material and a method of fabricating the same and provides a silica optical waveguide in which the position of a core can be easily recognized and a method of man... | 10/23/2007 |
| 7286740 | Optical fiber, optical transmission line, optical module and optical transmission system The present invention relates to an optical fiber which has a structure for further increasing an FOM (=|dispersion|/loss) and which can be applied to a dispersion compensation module. The optical fiber is mainly composed of silica glass and has a core region includ... | 10/23/2007 |
| 7283715 | Optical waveguide forming material and method An optical waveguide comprising a substrate, a lower clad layer on the substrate, a core layer and an upper clad layer, at least one of the lower clad layer, the core layer and the upper clad layer is formed of a cured product of a photo-curable organopolysiloxane c... | 10/16/2007 |
| 7263267 | Higher order mode dispersion compensating fiber and mode converter for higher order fiber A higher order mode dispersion compensating fiber includes an optical fiber and a first loss layer which is provided within the fiber and which attenuates a lower order mode propagating through the optical fiber while not attenuating a higher order mode which is hig... | 08/28/2007 |
| 7260297 | Displays The present invention describes a fluorescent dye doped polymer based optical wave-guide structure. The described polymers can be used to fabricate a range of display elements and illumination systems which work without the use of external electrical power. This is ... | 08/21/2007 |
| 7242834 | Dispersion-shifted fiber for optical parametric amplifier Provided is a dispersion-shifted fiber for an optical parametric amplifier. The dispersion-shifted fiber is a silica-based optical fiber and has a large nonlinear coefficient and a small effective area. The dispersion-shifted fiber also reduces a bending loss and a ... | 07/10/2007 |
| 7239765 | Polymer phase modulator An optical phase modulator comprising a plurality of polarizing waveguides having a layered stack including a core between at least one layer of cladding material, wherein the core is constructed of electro-optic material(s), wherein the layers of cladding materials... | 07/03/2007 |
| 7228013 | Polymer phase modulator A polymer phase modulator having a plurality of polarizing waveguides having a layered stack including a core between at least one layer of cladding material, wherein the core is constructed of electro-optic material(s), wherein the layers of cladding materials havi... | 06/05/2007 |
| 7228022 | Polymer integrated optical transceiver An optical transceiver comprising an optical bench including of a waveguide on a substrate, a light source, a system of transceiver module waveguides, a waveguide coupler, a fiber, and a detector. ... | 06/05/2007 |
| 7224882 | 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... | 05/29/2007 |
| 7224854 | System, method, and computer program product for structured waveguide including polarizer region An apparatus, method, computer program product, and propagated signal for a transport. The transport including: a waveguide including a guiding region and one or more bounding regions for enhancing containment of transmitted radiation within the guiding region, the ... | 05/29/2007 |
