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Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Application No. | Application Title | Issue Date |
| 20120127563 | ACTIVE TAPERS WITH REDUCED NONLINEARITY Fiber amplifiers and oscillators include tapered waveguides such as optical fibers that permit multimode propagation but produce amplification and oscillation in a fundamental mode. The tapered waveguides generally are provided with an active dopant such as a rare earth... | 05/24/2012 |
| 20120105947 | AMPLIFICATION OPTICAL FIBER AND OPTICAL FIBER AMPLIFIER AND RESONATOR USING THE SAME The invention provides an amplification optical fiber, which can output light with a good beam quality even when a higher-order mode is excited, and an optical fiber amplifier using the amplification optical fiber. An amplification optical ... | 05/03/2012 |
| 20120105946 | COMPENSATION OF THERMALLY INDUCED REFRACTIVE INDEX DISTORTIONS IN AN OPTICAL GAIN MEDIUM OR OTHER OPTICAL ELEMENT In various embodiments, an optical element, e.g., an optical fiber, may be configured to compensate for thermal lensing. For example, thermal lensing may be caused by light power dissipation within an optical fiber, which may include a fiber core that guides amplified l... | 05/03/2012 |
| 20120081781 | SHORTER WAVELENGTH PHOTO-ANNEALING APPARATUS FOR RARE-EARTH-DOPED FIBER AND ITS OPTICAL ASSEMBLIES UNDER IRRADIATION An optical fiber apparatus is suitable to operate under irradiation, more particularly to mitigating the damage of a rare-earth-doped optical fiber element as part of an optical fiber assembly causes by irradiation. The irradiation mitigation attributes to a photo-annea... | 04/05/2012 |
| 20120051688 | AMPLIFICATION MODULE FOR AN OPTICAL PRINTED CIRCUIT BOARD AND AN OPTICAL PRINTED CIRCUIT BOARD The invention provides an amplification module for an optical printed circuit board, the optical printed circuit board comprising plural polymer waveguide sections from independent waveguides, each of the sections being doped with an amplifying dopant, wherein the plura... | 03/01/2012 |
| 20120050844 | OPTICAL SIGNAL TRANSMISSION DEVICE, OPTICAL AMPLIFICATION DEVICE, OPTICAL ATTENUATION DEVICE AND OPTICAL SIGNAL TRANSMISSION METHOD A generation unit generates a polarization multiplexing signal in which two optical signals, each polarization of which is orthogonal to each other, are combined. A detector detects the powers of the two optical signals contained in the polarization multiplexing signal ... | 03/01/2012 |
| 20120033293 | METHOD AND APPARATUS OF DETECTING AN OPENING IN AN OPTICAL TRANSMISSION FIBER OF A ROPA SYSTEM Method and apparatus for detecting an opening in a transmission fiber connecting a discrete gain unit to a pump unit of a Remote Optically Pumped Amplifier (ROPA) system. The method comprises measuring an optical power entering the pump unit from the transmission fiber,... | 02/09/2012 |
| 20120033294 | OPTICAL APPARATUS, SYSTEM AND METHOD EMPLOYING AN ENDOHEDRAL METALLOFULLERENE An optical apparatus (100), an optical system (200) and a method (300) of light amplification by stimulated emission employ an endohedral metallofullerene (120, 220) as an active material coupled to an optical waveguide (110, 210). The... | 02/09/2012 |
| 20120019902 | INTERGRATED PUMP LASER AND RARE EARTH WAVEGUIDE AMPLIFIER A light amplifier includes a single crystal semiconductor substrate with a rare earth oxide, light amplifying gain medium deposited on the substrate and formed into a light waveguide, and a pump laser. A lattice matching virtual substrate integrates the pump laser to th... | 01/26/2012 |
| 20110310469 | FIBER LASER APPARATUS AND OPTICAL AMPLIFICATION METHOD A fiber laser apparatus includes an optical amplification fiber with a multi-core structure composed of a first waveguide that pumping light enters and that transmits the pumping light; a second waveguide composed of a core containing a laser medium and for generating l... | 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 |
| 20110292399 | Discrete Spectrum Broadband Optical Source A new broadband source having a discrete set of spectral emission lines having high peak power in each line is provided by placing a gain medium in a reflective cavity comprising reflective front and back surfaces. A cavity feedback factor less than unity is achieved by... | 12/01/2011 |
| 20110292500 | OPTICAL AMPLIFIER AND OPTICAL FIBER An optical amplifier includes an optical fiber which includes a core in which the signal light is propagated and with which a rare-earth element is doped; a laser that is optically coupled to an end of the optical fiber, providing the optical fiber with an excitation li... | 12/01/2011 |
| 20110292499 | High Power Fiber Laser System with Side-Pumping Arrangement A twin fiber laser arrangement is configured with active and passive fibers supporting respective signal and pump lights and a reflective coating surrounding the fibers along a section of the arrangement. The passive fiber has regions covered by respective protective la... | 12/01/2011 |
| 20110279888 | MULTICORE TRANSMISSION AND AMPLIFIER FIBERS AND SCHEMES FOR LAUNCHING PUMP LIGHT TO AMPLIFIER CORES An optical transmission and amplification system includes a multichannel transmission span with a length of a multicore transmission fiber having a plurality of individual transmission cores. A first tapered multicore coupler provides connectivity between the plurality ... | 11/17/2011 |
| 20110279890 | METHOD AND DEVICE FOR ILLUMINATING A SAMPLE IN A LASER MICROSCOPE The invention relates to a method and a device for illuminating or irradiating an object, a sample (8), or the like, for the purpose of imaging or analysis, particularly for use in a laser microscope (1), preferably in a confocal microscope having a laser ... | 11/17/2011 |
| 20110279891 | OPTICAL FIBER AMPLIFIER An object of the present invention is to provide an optical fiber amplifier capable of suppressing oscillation of ASE. The optical fiber amplifier includes a second amplifier fiber 30 doped with a rare earth element; a second pumping source 26 that supplie... | 11/17/2011 |
| 20110273764 | HIGH POWER AND HIGH GAIN FIBER AMPLIFIER A device for amplifying optical signals propagating in optical fibers comprising a double cladding fiber amplifier having multiple gain stages, a port for coupling pump light into the double cladding fiber amplifier, and a double cladding fiber coupler for splitting the... | 11/10/2011 |
| 20110261440 | MODULATION OF FIBER LASER PUMPED DIFFERENCE FREQUENCY GENERATOR Systems and methods for modulating the output of a difference frequency generator such as an OPO, OPA or OPG include a pump fiber laser having at least one internal, directly modulatible component, wherein the pump fiber laser produces a pump signal, and a difference fr... | 10/27/2011 |
| 20110255874 | OPTICAL SIGNAL PROCESSING APPARATUS, OPTICAL RECEIVING APPARATUS, AND OPTICAL RELAY APPARATUS An optical signal processing apparatus includes an input unit to which signal light is input; a wave coupling unit that couples the signal light from the input unit and pump light having a waveform different from that of the signal light; a first nonlinear optical mediu... | 10/20/2011 |
| 20110249320 | HIGH BEAM QUALITY AND HIGH AVERAGE POWER FROM LARGE-CORE-SIZE OPTICAL-FIBER AMPLIFIERS In some embodiments, the present invention provides an apparatus, method and use for improving and merging two existing techniques (core pumping and cladding pumping) to enable high-power fiber-laser systems having excellent beam quality while using large-core (LMA) ste... | 10/13/2011 |
| 20110249321 | SIGNAL AND PUMP MODE-FIELD ADAPTOR FOR DOUBLE-CLAD FIBERS AND ASSOCIATED METHOD A method and apparatus for mode-matching double-clad fibers. In some embodiments, a first fiber section that has a first core, wherein the first core has a first core diameter connects to a mode-field adaptor, wherein the mode-field adaptor includes a first portion havi... | 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 |
| 20110228382 | CLADDING-PUMPED OPTICAL WAVEGUIDE The invention relates to a high power amplifier waveguide for amplifying an optical signal wherein photo darkening due to high optical flux is reduced considerably. This is achieved by providing a cladding pumped amplifier waveguide wherein the optical mode overlap to t... | 09/22/2011 |
| 20110200063 | OPTICAL AMPLIFIER SYSTEM FOR PULSED LASER BASED ON A GUIDING GAIN MEDIUM AND PULSED LASER COMPRISING SAME An optical amplifier for pulsed laser with short or ultra-short and energetic pulses includes an optical pumping source for generating a pump wave, an elongate amplifying medium including an input interface for receiving an optical signal to be amplified, the medium bei... | 08/18/2011 |
| 20110181944 | FIBER AMPLIFIERS AND FIBER LASERS WITH REDUCED OUT-OF-BAND GAIN A method of operating a fiber amplifier characterized by a spectral gain curve includes providing an input signal at a signal wavelength. The signal wavelength lies within an in-band portion of the spectral gain curve extending from a first in-band wavelength to a secon... | 07/28/2011 |
| 20110176202 | OPTICAL AMPLIFIER AND OPTICAL AMPLIFYING APPARATUS An optical amplifier amplifies signal light and includes a pump light source that outputs pump light of a wavelength different from that of the signal light; a combining unit that combines the signal light and the pump light output by the pump light source, to output co... | 07/21/2011 |
| 20110158595 | RARE-EARTH-DOPED FIBER OPTIC WAVEGUIDE AND OPTICAL DEVICE COMPRISING IT The invention relates to an optical waveguide, in particular an optical fibre comprising a core, formed from a material based on rare-earth-ion-doped silica, covered by an optical cladding. Nanoparticles, at least some of which are metal nanoparticles, are dispersed in ... | 06/30/2011 |
| 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 | |
| 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 |
| 20110141553 | RAMAN AMPLIFIER, OPTICAL REPEATER, AND RAMAN AMPLIFICATION METHOD A Raman amplifier according to the present invention comprises a plurality of pumping means using semiconductor lasers of Fabry-Perot, DFB, or DBR type or MOPAs, and pumping lights outputted from the pumping means have different central wavelengths, and interval between... | 06/16/2011 |
| 20110134512 | DOUBLE CLAD FIBER LASER DEVICE Provided is a double clad fiber device. The double clad fiber device includes a double clad fiber, a pump combiner, at least one first laser diode, and at least one second laser diode. The double clad fiber includes a core and a clad. The pump combiner provides pump lig... | 06/09/2011 |
| 20110134511 | OFF AXIS WALK OFF MULTI-PASS AMPLIFIERS The various laser architectures described herein provide increased gain of optical energy as well as compensation of optical phase distortions in a thin disk gain medium. An optical amplifier presented herein provides for scalable high energy extraction and gains based ... | 06/09/2011 |
| 20110116159 | ARTICLE COMPRISING A WIDEBAND OPTICAL AMPLIFIER WITH A WIDE DYNAMIC RANGE A multi-channel optical amplifier arrangement operating over a particular bandwidth is provided. The amplifier arrangement includes at least one optical amplifier stage that includes a rare-earth doped optical waveguide, at least one pump source for supplying optical pu... | 05/19/2011 |
| 20110116160 | Rare-Earth-Doped Optical Fiber Having Small Numerical Aperture The present invention embraces an amplifying optical fiber having a central core adapted to convey and amplify an optical signal and a cladding that surrounds the central core to confine the optical signal conveyed in the central core. The central core is formed of a co... | 05/19/2011 |
| 20110091155 | IN-LINE FORWARD/BACKWARD FIBER-OPTIC SIGNAL ANALYZER An optical connector having a plurality of directional taps and connecting between a plurality of optical waveguides (e.g., such as a connector between a waveguide that is part of, or leads from, a seed laser and/or an initial optical-gain-fiber power amplifier, and a w... | 04/21/2011 |
| 20110090558 | SYSTEM OF METHOD FOR DYNAMIC RANGE EXTENSION The present invention generally relates to the operation of optical network equipment such as optical amplifiers. In one aspect, a method of operating an optical amplifier is provided such that output of the optical amplifier avoids the effects of operating an optical g... | 04/21/2011 |
| 20110085230 | METHOD FOR CONTROLLING AN ERBIUM DOPED FIBER AMPLIFIER (EDFA) AND AMPLIFIER ARRANGEMENT The invention refers to a method for operating an amplifier with a first amplifier stage (A1) and a second amplifier stage (A2), pumped by a single pump light source (11) generating a primary pump signal (SPUMP), which is split into first... | 04/14/2011 |
| 20110075252 | OPTICAL FIBER LASERS AND AMPLIFIERS AND METHODS FOR PROVIDING OPTICAL GAIN The present invention relates generally to devices for the generation and amplification of electromagnetic energy. The present invention relates more particularly to optical fiber devices, such as lasers and amplifiers, useful for generating and amplifying optical energ... | 03/31/2011 |
