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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 7891213 | Vertical drawing method for producing a cylindrical glass body and device for carrying out said method According to a known vertical drawing method for producing a cylindrical glass body, the cylinder longitudinal axis of the glass cylinder is adjusted by hand in relation to the longitudinal axis of a heating tube. The aim of the invention is to optimize the stabilit... | 02/22/2011 |
| 7845194 | Method of splicing optical fibers with arc imagining and recentering In splicing two optical fibers to each other using an electric arc formed between electrodes images of the regions being heated and thereby fusioned to each other are taken. The images cover a rectangular field (43) having the fibers located centrally, along ... | 12/07/2010 |
| 7698908 | Method of manufacturing a glass based material with defect removal A glass base material, which is a base material of an optical fiber, comprising: a core; and a clad surrounding the core; wherein: a rate of change in a relative-refractive-index-difference between the core and the clad in a longitudinal direction of the glass base ... | 04/20/2010 |
| 7546750 | Method for fabricating optical fiber using deuterium exposure Embodiments of the invention include a method for making optical fiber having reduced aging or hydrogen aging loss over the life of the fiber and optical fiber systems including such optical fibers. Improved silicon-oxygen stoichiometry during one or more preform ma... | 06/16/2009 |
| 7430881 | Method of making an optical fiber attachment device Low-loss large diameter optical waveguide attachment devices (i.e., pigtails) and methods and systems of making the same are provided. The optical waveguide attachment devices may include an optical fiber (or other type waveguide) embedded in a larger diameter carri... | 10/07/2008 |
| 7368403 | Synthetic quartz glass for optical member, projection exposure apparatus and projection exposure method A synthetic quartz glass for an optical member, which is to be used in an optical device employing an ArF excimer laser beam as a light source at an energy density of at most 2 mJ/cm2/pulse or in an optical device employing a KrF excimer laser beam as a l... | 05/06/2008 |
| 7349590 | Polarization modulation interrogation of grating-coupled waveguide sensors An optical interrogation system and a GCW sensor are described herein that are used to determine whether a biological substance (e.g., cell, molecule, protein, drug) is located in a sensing region of the GCW sensor. The optical interrogation system includes a light ... | 03/25/2008 |
| 7336424 | Glass optical element In a method of manufacturing a glass optical element by press-forming a glass material in a chamber by using a forming mold comprising upper and lower dies at least one of which is movable, where a surrounded space is formed between the glass material and at least o... | 02/26/2008 |
| 7317856 | Method of making optical fiber and optical fiber made by the method Provided is a method of manufacturing an optical fiber preform from which an optical fiber having the desired characteristics can easily be produced. The method comprises the steps of: (1) preparing an intermediate preform for manufacturing an optical fiber preform;... | 01/08/2008 |
| 7310974 | Method for producing twisted optical fiber with reduced polarization mode dispersion A method for drawing an optical fiber having reduced polarization mode dispersion (PMD) draws an optical fiber from an optical fiber preform whose core ovality is at max about 3%, coats the optical fiber with acrylic polymer and twists the coated optical fiber with ... | 12/25/2007 |
| 7290408 | Apparatus for supporting a preform having a supporting core The invention relates to apparatus for supporting a preform manufactured in an installation for manufacturing or building up preforms having supporting cores, said installation including at least rotation means having a horizontal axis of rotation and two mounting p... | 11/06/2007 |
| 7263264 | Method of manufacturing optical waveguide Two or more optical waveguides are placed in a treatment vessel. The optical waveguides in the treatment vessel are treated with a chemical substance containing at least one of deuterium, hydrogen, and a compound thereof. The treating includes causing molecules of t... | 08/28/2007 |
| 7255498 | Low profile system for joining optical fiber waveguides A compact, low profile splicing system for joining optical fibers produces durable, low transmission loss fusion splices. The system employs active optical techniques such as profile alignment or local injection and detection to achieve optimized alignment of the fi... | 08/14/2007 |
| 7257136 | Laser apparatus A laser apparatus (100) for performing the laser machining operation by condensing the laser light output from a laser oscillator (3) is disclosed. A laser output value calculation unit calculates a laser output value (L1) based on a command val... | 08/14/2007 |
| 7197898 | Robust diameter-controlled optical fiber during optical fiber drawing process There is provided robust diameter-controlled optical fiber during optical fiber drawing process and an optical fiber drawing process which comprises drawing the optical fiber from a perform therefor under tension to form the optical fiber while heating and melting t... | 04/03/2007 |
| 7197242 | Chromatic-dispersion measuring apparatus and method The present invention provides a chromatic-dispersion measuring apparatus and method that can quickly measure chromatic dispersion in an optical fiber even when the optical fiber is short. Continuous light beams having the wavelengths λ1 and λ2 | 03/27/2007 |
| 7196450 | Electromechanical assemblies using molecular-scale electrically conductive and mechanically flexible beams and methods for application of same Electromechanical systems utilizing suspended conducting nanometer-scale beams are provided and may be used in applications, such as, motors, generators, pumps, fans, compressors, propulsion systems, transmitters, receivers, heat engines, heat pumps, magnetic field ... | 03/27/2007 |
| 7164841 | Reel to reel manufacturing line The invention relates to a line for processing an optical fiber having first and second ends, the line comprising a support for receiving a reel with the fiber wounded thereon; a de-winder for unwinding the fiber without substantial rotation of the reel; and a proce... | 01/16/2007 |
| 7162894 | Method for charging quartz glass objects with hydrogen The invention relates to the loading of quartz glass objects with hydrogen in an annealing process in a furnace for improving the homogeneity of the refractive index and the laser resistance while, at the same time, maintaining a specified stress birefringence of ea... | 01/16/2007 |
| 7159418 | Method of producing synthetic quartz glass Fluorine-containing synthetic quartz glass is produced by feeding silica-forming material, hydrogen, and oxygen gases from a burner to a reaction zone, flame hydrolyzing the silica-forming material in the reaction zone to form particles of silica, depositing the sil... | 01/09/2007 |
| 7157691 | Monitoring optically powered actuators Operation of a power-by-light valve (15) by a source (11) along an optical fibre (13) is monitored by means of optical sensors (14) from which light passes back along fibre (13) to monitoring and processing units (16, 17). T... | 01/02/2007 |
| 7149034 | Assessing mark for microlens An assessing mark of microlens array fabricated in a scribe line region includes two vertical line patterns arranged substantially in parallel with each other, and a horizontal line pattern connecting the vertical line patterns. The vertical line patterns and horizo... | 12/12/2006 |
| 7114860 | Method and device for coupling a light emitting source to an optical waveguide In a method for coupling an optical waveguide to a light emitting diode (LED) within a resin case, an input end of the optical waveguide is mounted proximal to a surface formed in the resin case parallel to a light-emitting face of the LED. The optical waveguide and... | 10/03/2006 |
| 7090414 | Automatic apparatus for cleaving optical fiber waveguides An apparatus and method for cleaving an optical fiber waveguide comprises a support base, a fixed fiber support including a fixed fiber base and a self-aligning fiber holder, a fiber pull tension assembly including a tension assembly base and a rotatable pull clamp,... | 08/15/2006 |
| 7069748 | Optical fiber, optical fiber preform, and manufacturing method therefor An optical fiber and an optical fiber preform having optical characteristics, such as the wavelength dispersion, close to design values by controlling the amount of change in the refractive index in the core, thereby realizing high-quality and high-speed transmissio... | 07/04/2006 |
| 7070342 | Low profile system for joining optical fiber waveguides A compact, low profile splicing system for joining optical fibers produces durable, low transmission loss fusion splices. The system employs active optical techniques such as profile alignment or local injection and detection to achieve optimized alignment of the fi... | 07/04/2006 |
| 7072051 | Laser diffraction process and apparatus for width measurement of elongated objects Size distribution of elongated objects is measured by forward scattering radiation from the objects at a range of scatter angles. The scattered radiation is refracted to locations on a scatter detector based on the scatter angles and independent of the location of t... | 07/04/2006 |
| 7062941 | Manufacturing method of optical fiber preform A method for manufacturing an optical fiber preform that can produce an optical fiber having desired characteristics over the longer length thereof. A crude preform provided with a core region and a cladding region is prepared (Step S1), and at a plurality of... | 06/20/2006 |
| 7055345 | Glass base material manufacturing apparatus and glass base material manufacturing method An apparatus for manufacturing a glass base material, which is a base material of an optical fiber, comprising: a base rod, around and along which said glass base material is formed; a burner that hydrolyzes and accumulates a gas material, which is a base material o... | 06/06/2006 |
| 7058243 | Optical fiber sensor having a sol-gel fiber core and a method of making A simple, economic wet chemical procedure is described for making sol-gel fibers. The sol-gel fibers made from this process are transparent to ultraviolet, visible and near infrared light. Light can be guided in these fibers by using an organic polymer as a fiber cl... | 06/06/2006 |
| 7046886 | Hydrogen concentration relocation in optical fiber A system and method in accordance with the present invention applies short bursts of a high temperature fluid to a hydrogen-loaded fiber to relocate the hydrogen within the fiber in the proximity of the fiber's core—to achieve a fiber having significantly improved... | 05/16/2006 |
| 7039284 | Optical waveguide incorporating submedia An optical waveguide (optical fiber, for example) having low transmission loss, nonlinearity, and chromatic dispersion and facilitating the termination work for its end portions. An optical fiber 10 comprises a main medium 11 in which minute regions | 05/02/2006 |
| 7016576 | Method for producing an optical fibre telecommunications cable with reduced polarization mode dispersion An optical cable for telecommunications having an optical core and a plurality of protecting and reinforcing elements or avers placed around the optical core. The optical core has a central reinforcing element, a polymer layer, a plurality of optical fibers incorpor... | 03/21/2006 |
| 7013678 | Method of fabricating graded-index optical fiber lenses A GRIN fiber lens is fabricated by the steps of providing a graded index glass preform, thinning the graded index preform to remove a sufficient thickness of the graded glass to establish a desired Δn, and drawing a graded index optical fiber from the thinned grade... | 03/21/2006 |
| 7014318 | Light coupling device and image projection apparatus using the same A light coupling device and an image projection apparatus using the same, wherein photoconductive media of the light coupling device include optical fibers that transmit light. Each light coupling device has at least two input terminals, at least two output terminal... | 03/21/2006 |
| 7009769 | Correction of birefringence in cubic crystalline optical systems A photolithography tool including an optical system for transmitting a beam of radiation toward a substrate is presented. The optical system includes a plurality of calcium fluoride lens elements, optically transmissive of the beam of radiation, each having respecti... | 03/07/2006 |
| 7004640 | Low profile local injection and detection system for optical fiber waveguides A local injection and detection system assesses the attenuation of light propagating from a first optical fiber to a second optical fiber associated therewith. The system comprises a light injector, a light detector, a driver to energize a light source in the inject... | 02/28/2006 |
| 6994481 | Manufacturing method and apparatus of fiber coupler A manufacturing apparatus and method of a fiber coupler is provided. A movable electric arc is employed to fuse more than two stacked fibers for manufacturing a fiber coupler having a small size and good environment stability. It is advantageous that the fiber coupl... | 02/07/2006 |
| 6947192 | Correction of birefringence in cubic crystalline optical systems An optical system includes multiple cubic crystalline optical elements aligned along a common optical axis and having their crystal lattices oriented with respect to each other to minimize the effects of intrinsic birefringence and produce a system with reduced reta... | 09/20/2005 |
| 6947140 | Birefringence measurement apparatus and method A birefringence measurement apparatus includes a measurement part for measuring a birefringence azimuth and a birefringence amount of an object to first and second light having different wavelengths from each other, and a determination part for calculating at least ... | 09/20/2005 |
