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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Application No. | Application Title | Issue Date |
| 20120081780 | LOOK-UP TABLE AND DIGITAL TRANSMITTER BASED ARCHITECTURE FOR FIBER NONLINEARITY COMPENSATION Systems and methods are disclosed to process an optical signal using a pre-processor to populate a non-linearity compensation data structure based on a set of predetermined rules in a non-real-time off-line mode; and an amplifier applying said predetermined rules in rea... | 04/05/2012 |
| 20120069428 | SINGLE-MODE PROPAGATION IN MICROSTRUCTURED OPTICAL FIBERS The invention relates to an optical fiber as an optical waveguide for the single-mode operation. The present invention proposes a fiber having a microstructure, by which the propagation of modes of a higher order are selectively suppressed in the optical waveguide. At t... | 03/22/2012 |
| 20110310467 | System having light sensor with enhanced sensitivity The system includes a light-transmitting medium positioned on a base. The light-transmitting medium included a ridge and a slab region. The ridge extends upward from the slab region and defines a portion of a waveguide on the base. The waveguide is configured to guide a... | 12/22/2011 |
| 20110310468 | HYBRID FIBER-MOPA A master oscillator power-amplifier stages includes multiple stages of fiber-amplification with a final power amplifier stage in the form of a multi-pass amplifier. With a thin-disk gain medium in one example the thin-disk amplifier includes a common optical arrangement... | 12/22/2011 |
| 20110305251 | MULTI-CLADDING OPTICAL FIBER, OPTICAL FIBER MODULE, FIBER LASER, AND FIBER AMPLIFIER Provided is a multi-cladding optical fiber which includes: a core with an average refractive index n1; and a cladding including an inner cladding with an average refractive index n2 formed on the periphery of the core, an intermediate cladding with an aver... | 12/15/2011 |
| 20110292498 | HIGH PEAK POWER OPTICAL AMPLIFIER A method and apparatus for providing a high peak power optical beam. The method includes interleaving pulse trains of different wavelengths and spatially and temporally overlapping the different wavelengths to produce an amplified output beam with very high peak power.... | 12/01/2011 |
| 20110292496 | LASER SYSTEM WITH HIGHLY LINEAR OUTPUT A laser device having a semiconductor gain element optically coupled to an optical fiber by using an angled anamorphic fiber lens and including a wavelength-selective front reflector. The laser device possesses improved output characteristics such as a highly linear las... | 12/01/2011 |
| 20110267671 | COMBINING MULTIPLE LASER BEAMS TO FORM HIGH REPETITION RATE, HIGH AVERAGE POWER POLARIZED LASER BEAM Two pulsed lasers (14) or sets of lasers propagate beams of pulses (20) having orthogonally related polarization states. A beam combiner (24) combines the orthogonal beams to form a combined beam propagating along a common beam path (16) to i... | 11/03/2011 |
| 20110268389 | TILED BRAGG GRATING AND LASER SYSTEMS THEREFROM A tiled Bragg grating (BG) includes a plurality of BGs that are paralleled and optically contacted to one another. Each BG includes an optically transparent substrate within a predetermined wavelength or wavelength range having a length dimension and a transverse dimens... | 11/03/2011 |
| 20110261439 | Device and Method for Selective Transmission of an Optical Signal The present invention relates to a device and a method for selective transmission of an optical signal. It is an object of the present invention to provide a light modulator and a method for light modulation capable of selecting very short ... | 10/27/2011 |
| 20110249319 | HIGH-POWER LASER SYSTEM HAVING DELIVERY FIBER WITH NON-CIRCULAR CROSS SECTION FOR ISOLATION AGAINST BACK REFLECTIONS An apparatus and method that provide optical isolation by permitting substantially all forward-propagating light into a delivery fiber from an optical amplifier and substantially preventing backward-traveling light from the delivery fiber entering the optical amplifier ... | 10/13/2011 |
| 20110235166 | Apparatus and Method of Generating Nearly Non-Diffracting Beams from Multimode Optical Fibers A first optical fiber (12) having a first end and a second end is connected to a multimode second optical fiber (14) at the second end. The first optical fiber (12) outputs a substantially single mode optical beam at its second end. The multimode se... | 09/29/2011 |
| 20110235165 | AMPLIFICATION OPTICAL FIBER WITH OPTICAL COMPONENT AND FIBER LASER DEVICE INCLUDING THE SAME An amplification optical fiber with an optical component capable of efficiently absorbing pumping light and a fiber laser device including the same are provided. An amplification optical fiber with an optical component in a fiber laser devi... | 09/29/2011 |
| 20110210252 | PULSE LASER APPARATUS, TERAHERTZ MEASURING APPARATUS, AND TERAHERTZ TOMOGRAPHIC APPARATUS A pulse laser apparatus includes a laser configured to generate a pulse of a laser beam, a fiber amplifier, and a pulse compressor. The fiber amplifier includes a rare-earth doped fiber that exhibits normal dispersion at a wavelength of the laser beam generated from the... | 09/01/2011 |
| 20110194166 | APPARATUS FOR COMBINING LASER RADIATION Apparatus for combining laser radiation (1) 5 which apparatus comprises a seed laser (2), a splitter (3), a plurality of amplifier chains (4), a reference amplifier chain (7), detection means (5). demodulator means (6<... | 08/11/2011 |
| 20110176203 | LASER APPARATUS The present invention relates to a laser apparatus capable of supplying laser beams from each of plural beam emitting ends constituting laser beam output ports, and realizes the overall low power consumption and low non-linearization. The laser apparatus comprises a see... | 07/21/2011 |
| 20110157671 | Wave-Plate Structures, Power Selective Optical Filter Devices, and Optical Systems Using Same In an embodiment, an optical filter device includes an input polarizer for selectively transmitting an input signal. The device includes a wave-plate structure positioned to receive the input signal, which includes first and second substantially zero-order, zero-wave pl... | 06/30/2011 |
| 20110149384 | COMPACT PHOTONIC CRYSTAL FIBER SOURCE A system is provided for amplification of laser light, the system having: a plurality of non-silica optical fibers, each the non-silica optical fiber disposed within a sheath; each the non-silica optical fiber being doped with a dopant such that the non-silica fiber has... | 06/23/2011 |
| 20110149285 | OPTICAL RESONATOR AND OPTICAL SENSING SYSTEM COMPRISING THE SAME An embodiment of the invention relates to an optical resonator. The optical resonator includes an input optical waveguide and a closed loop coupled to the input optical waveguide. The closed loop is adapted to receive light from the input optical waveguide, wherein the ... | 06/23/2011 |
| 20110149381 | Gain-clamped semiconductor optical amplifier A gain-clamped semiconductor optical amplifier according to the present invention has a pair of DBR areas 2, 3 disposed in sandwiching relation to gain area 1 for amplifying guided light. A portion of a waveguide of gain area 1 comprises MMI wavegui... | 06/23/2011 |
| 20110149382 | Apparatuses and Methods for Performing Gain Guiding A fiber, such as a photonic bandgap fiber, is provided, the fiber including a core and a cladding. The core can extend longitudinally and can have a gain medium configured to provide laser amplification to laser radiation propagating along the core. For example, the gai... | 06/23/2011 |
| 20110149383 | AMPLIFICATION OPTICAL FIBER, AND OPTICAL FIBER AMPLIFIER AND RESONATOR USING THE SAME There are provided an amplification optical fiber, and an optical fiber amplifier and a resonator using the same capable of outputting light of high beam quality even when a higher-order mode that is axially symmetric is excited in addition to LP01 mode. 06/23/2011 | |
| 20110142083 | YTTERBIUM-DOPED OPTICAL FIBER, FIBER LASER AND FIBER AMPLIFIER An ytterbium-doped optical fiber includes: a core which contains at least ytterbium, aluminum, and phosphorus; and a cladding which encircles the core, wherein an aluminum oxide equivalent concentration of the aluminum in the core is 0.2 mol % or more, a diphosphorus pe... | 06/16/2011 |
| 20110141555 | AUTO-CLADDED LARGE-CORE OPTICAL FIBERS Embodiments of auto-cladded optical fibers are described. The fibers may have a refractive index profile having a small relative refractive index change. For example, the fiber may include an auto-cladded structure having, e.g., a trough or gradient in the refractive in... | 06/16/2011 |
| 20110122468 | Light-enhancing device and method based on use of an optically active lasing medium in combination with digital planar holdgraphy The light-enhancing system of the invention comprises a laser diode in which a fully reflecting mirror and/or a partially reflecting mirror of the laser diode is made in the form of digital planar holography (DPH) incorporating a mode-reorganization function that decrea... | 05/26/2011 |
| 20110123146 | Nano-wire Optical Block Devices For Amplifying, Modulating, And Detecting Optical Signals A nano-wire optical block device for amplifying, modulating, and detecting an optical signal in a large-core hollow metallized waveguide. The nano-wire optical block device comprises a substrate with a plurality of nano-wires coupled to the substrate to form the nano-wi... | 05/26/2011 |
| 20110085149 | PULSED HIGH-POWER LASER APPARATUS AND METHODS In various embodiments, output beams of multiple seed lasers differing in at least one beam characteristic are combined, amplified, and separated according to the beam characteristic(s) for use in, e.g., plateless lithographic printing.... | 04/14/2011 |
| 20110069376 | FIBER MOPA WITH AMPLIFYING TRANSPORT FIBER Frequency-multiplied fiber-MOPA apparatus includes one enclosure containing a master oscillator and fiber amplifier stages and another enclosure containing frequency-multiplying stages. Radiation is transmitted between the enclosures by a transport fiber in a flexible j... | 03/24/2011 |
| 20110069724 | Optical fiber for sum-frequency generation The present invention embraces an optical fiber that includes a central core to transmit optical signals and an optical cladding surrounding the central core to confine transmitted optical signals. The optical fiber typically includes metallic nanostructures for increas... | 03/24/2011 |
| 20110044697 | OPTICAL TELEMETRY NETWORK An apparatus for providing communications between a first device disposed at a tubular and a second device, the tubular having tubular sections and being configured to be disposed in a borehole penetrating the earth, the apparatus including: a first optical coupler conf... | 02/24/2011 |
| 20110043898 | Adiabatic bend transitions for multimode fibers Guided adiabatic bend transitions for multimode fibers are presented to preserve the power of guided light in the fundamental mode while guiding from one level of curvature to another for improved operation of mode filters and fiber amplifiers. A method is provided to f... | 02/24/2011 |
| 20110038031 | PULSED FIBER-MOPA WITH WIDELY-VARIABLE PULSE-DURATION Master oscillator power amplifier (MOPA) apparatus includes two seed-pulse sources coupled to a single fiber amplifier including one or more stages of amplification. One of the seed-pulse sources is a single-mode source generating pulses having a duration selectively va... | 02/17/2011 |
| 20110038036 | TUNABLE LASER SOURCE USING INTRACAVITY LASER LIGHT OUTCOUPLING AND MODULE CONTAINING THE SAME A laser source includes a laser beam generating section for generating a laser beam in a cavity between first reflector and a second reflector; and a tap section provided in the cavity to take out a part of the laser beam. The laser source is a waveguide-based laser sou... | 02/17/2011 |
| 20110032602 | ALL-FIBER INTEGRATED HIGH POWER COHERENT BEAM COMBINATION A fiber laser amplifier system including a master oscillator that generates a signal beam. A splitter splits the signal beam into a plurality of fiber beams where a separate fiber beam is sent to a fiber amplifier for amplifying the fiber beam. A tapered fiber bundle co... | 02/10/2011 |
| 20110032603 | INTEGRATED SPECTRAL AND ALL-FIBER COHERENT BEAM COMBINATION A fiber laser amplifier system including a plurality of master oscillators each generating a signal beam at a different wavelength. A splitter is provided for each master oscillator that splits the signal beam into a plurality of fiber beams where a separate fiber beam ... | 02/10/2011 |
| 20110026106 | YTTERBIUM-DOPED OPTICAL FIBER, FIBER LASER, AND FIBER AMPLIFIER An ytterbium-doped optical fiber of the present invention includes: a core which contains ytterbium, aluminum, and phosphorus and does not contain germanium; and a cladding which surrounds this core. The ytterbium concentration in the core in terms of ytterbium oxide is... | 02/03/2011 |
| 20110020008 | 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 desi... | 01/27/2011 |
| 20110019705 | TAILORED PULSE BURST Output pulses from an optical system having a seed source and an optical amplifier coupled to the seed source may be controlled by controlling a power of a seed signal from the seed source. The seed signal may be varied between a minimum value and a maximum value in a w... | 01/27/2011 |
| 20110013268 | SYSTEMS AND METHODS OF ACHIEVING HIGH BRIGHTNESS INFRARED FIBER PARAMETRIC AMPLIFIERS ADN LIGHT SOURCES Fiber optic amplification in a spectrum of infrared electromagnetic radiation is achieved by creating a chalcogenide photonic crystal fiber (PCF) structure having a radially varying pitch. A chalcogenide PCF system can be tuned during fabrication of the chalcogenide PCF... | 01/20/2011 |
| 20110013269 | PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR, OPTICAL FILTER, OPTICAL RESONATOR AND METHODS FOR DESIGNING THE ELEMENT, CHROMATIC DISPERSION COMPENSATOR, OPTICAL FILTER AND OPTICAL RESONATOR There is provided a planar optical waveguide element in which an optical waveguide core comprises an inner side core having protruding portions that form a rib structure, and an outer side core that is provided on top of the inner side core and that covers circumferenti... | 01/20/2011 |
