| Entries |
| Document | Title | Date |
|---|
| 20080291530 | Amplifying Medium Comprising a Liquid Medium Based on Halogenated Ligands and Lanthanides - The invention relates to an optical amplifying medium comprising a liquid medium, having an organic ligand corresponding to the following chemical formula: | 11-27-2008 |
| 20080316592 | LASER DEVICE AND OPTICAL AMPLIFIER - Laser light emission across a wide bandwidth emission spectrum is enabled in a laser device equipped with solid gain media. The laser device is equipped with: a resonator; a plurality of solid gain media, having fluorescent spectra that at least partially overlap with each other, provided within the resonator; and pumping means, for pumping the plurality of solid gain media. The entire fluorescent spectrum width of the plurality of solid gain media is greater than the fluorescent spectrum width of each solid gain medium. | 12-25-2008 |
| 20080316593 | LASER DEVICE AND OPTICAL AMPLIFIER - Laser light emission across a wide bandwidth emission spectrum is enabled in a laser device equipped with solid gain media. The laser device is equipped with: a resonator; a plurality of solid gain media, having fluorescent spectra that at least partially overlap with each other, provided within the resonator; and pumping means, for pumping the plurality of solid gain media. The entire fluorescent spectrum width of the plurality of solid gain media is greater than the fluorescent spectrum width of each solid gain medium. | 12-25-2008 |
| 20090073550 | DEVICE FOR AMPLIFYING A LASER WITH HIGH ENERGY AND HIGH BEAM QUALITY - The field of the invention is that of high-energy laser beam amplifiers and associated optical pumping devices. The object of the invention is to use an amplifier configuration and a cooling means which do not have the drawbacks of cryogenic systems that have been used up until now and which however make it possible both to obtain an amplified laser beam of high quality and to minimize transverse lasing effects. A laser beam amplifying device according to the invention combines four main principles, which are use of a crystal exhibiting circular symmetry so as to distribute the mechanical stresses radially; cooling of the entire external surface by a cooling liquid, so as to avoid the use of cryogenic techniques; use of a matching liquid so as to avoid transverse lasing effects; and use of pump laser beams with uniform energy distribution. | 03-19-2009 |
| 20090251771 | APPARATUS AND METHOD FOR ENHANCED OPTICAL TRANSMISSION THROUGH A SMALL APERTURE, USING RADIALLY POLARIZED RADIATION - An apparatus for enhanced transmission of radiation, comprising at least one radiation source ( | 10-08-2009 |
| 20090303578 | FAR-FIELD SUB-DIFFRACTION OPTICAL LENSES (FASDOL) - Far-field sub-diffraction optical lenses “FaSDOLs” comprise an anisotropic crystal having special dispersion characteristics such that it supports diffraction free propagation. An image with subwavelength features on the input surface is transferred through a propagation function to the output surface with effectively no, or minimal, loss in information. These special properties may be exploited in several ways, including but not limited to, magnification of an image at the input surface through the use an oblique cut at the output surface, magnification of an image at the input surface through use of a curved crystalline structure, and more generally near-field optical processing. | 12-10-2009 |
| 20100118389 | Ultrafast alexandrite laser amplifier using diode laser sources - Ultrafast laser amplifier systems based on titanium doped sapphire are useful tools in science and industry. Their wider usage is limited by the high system costs, which results mainly from the use of the solid state pump lasers in the green wavelength range. This invention replaces the titanium doped sapphire amplifier by a diode pumped alexandrite amplifier and so improves the overall system performance and at the same time reduces the cost of the laser system. | 05-13-2010 |
| 20100134876 | WIRELESS SIGNAL PROXIMITY ENHANCER - A strongly anisotropic photonic crystal structure was designed using form birefringence. It has a low group velocity close to a split band edge (SBE) and large field enhancements proportional to the fourth power of the number of periods are predicted. The structure is used to amplify wireless signals outside and near the structure. | 06-03-2010 |
| 20110026107 | Surface state gain - A gain medium may be arranged to provide energy to a surface state. | 02-03-2011 |
| 20120212804 | MULTI-PASS OPTICAL SYSTEM FOR A PUMP LASER - 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 on a number of passes of the signal beam through a gain medium. Multiple, spatially separate, optical paths may also be passed through the same gain region to provide gain clearing by splitting off a small percentage of an output pulse and sending it back through the amplifier along a slightly different path. By clearing out the residual gain, uniform signal amplitudes can be obtained. | 08-23-2012 |
| 20130265636 | TUNABLE OPTICAL PARAMETRIC AMPLIFIER - An apparatus, system, and method are disclosed. One method comprises energizing a photonic crystal fiber to generate a seed beam of electromagnetic radiation as an output of the photonic crystal fiber, transmitting the seed beam to a non-linear crystal, and generating an amplified beam of electromagnetic radiation based on the seed beam. | 10-10-2013 |
| 20130301117 | METHODS, SYSTEMS, AND APPARATUS FOR HIGH ENERGY OPTICAL-PULSE AMPLIFICATION AT HIGH AVERAGE POWER - An inventive composite optical gain medium capable includes a thin-disk gain layer bonded to an index-matched cap. The gain medium's surface is shaped like a paraboloid frustum or other truncated surface of revolution. The gain medium may be cryogenically cooled and optically pumped to provide optical gain for a pulsed laser beam. Photons emitted spontaneously in the gain layer reflect off or refract through the curved surface and out of the gain medium, reducing amplified spontaneous emission (ASE). This reduces limits on stored energy and gain imposed by ASE, enabling higher average powers (e.g., 100-10,000 Watts). Operating at cryogenic temperatures reduces thermal distortion caused by thermo-mechanical surface deformations and thermo-optic index variations in the gain medium. This facilitates the use of the gain medium in an image-relayed, multi-pass architecture for smoothed extraction and further increases in peak pulse energy (e.g., to 1-100 Joules). | 11-14-2013 |
| 20130321901 | DRIVE LASER FOR EUV LIGHT SOURCE - A device comprising a laser source producing a continuous output on a beam path and an amplifier is disclosed. The device further includes a partially transmissive, partially reflective optic disposed on said beam path between said laser source and said amplifier. The device further includes a droplet generator positioned to deliver a droplet moving on a path intersecting said beam path, the droplet reflecting light to establish an optical cavity with said optic. | 12-05-2013 |
| 20140307305 | METHOD AND SYSTEM FOR CRYOCOOLED LASER AMPLIFIER - A laser amplifier system includes a gain medium having a longitudinal axis and a plurality of sides substantially parallel to the longitudinal axis. The laser amplifier system also includes a waveguide having a plurality of inner surfaces. Each of the inner surfaces is optically coupled to one of the plurality of sides of the gain medium. The waveguide also includes a plurality of outer surfaces. The laser amplifier system further includes a cladding optically coupled to the outer surfaces of the waveguide. | 10-16-2014 |
| 20150138631 | Systems and Methods to More Accurately Estimate a Fluorine Concentration in a Source Laser - In master oscillator-power amplifier (MOPA) systems for generating laser light, a fluorine concentration in each of the master oscillator and power amplifier chambers is maintained. While sensors at the chambers can measure certain values of some variables, the sensors do not directly measure fluorine concentration. As a further complication, the values received from the sensors are known to be affected by various specified variables. To estimate the effect on the received values, an RLS algorithm and covariance matrix are used. To ensure that the RLS algorithm is responsive to recent changes in a specified variable, portions of the covariance matrix are reset to more quickly and more heavily weight the more recent values. | 05-21-2015 |
| 20150311667 | NON-REGENERATIVE OPTICAL ULTRASHORTPULSE AMPLIFIER - Non-regenerative optical amplifier has a first optical amplifying medium and at least one second optical amplifying medium. The non-regenerative optical amplifier may be an ultrashort pulse amplifier. The material properties of the first amplifying medium differ at least partially from the material properties of the second amplifying medium. The emission spectra of the amplifying media overlap partially, and the amplifying media are solid-state bulk crystals. | 10-29-2015 |
| 20160006207 | MOPA WITH HIGH-GAIN SOLID-STATE AMPLIFIER - Radiation from a VBG-locked diode-laser at a locked wavelength of 878.6 nm is focused into a 30-mm long Nd:YVO | 01-07-2016 |
| 20160090322 | Broadband Emission Material and White Light Emission Material - A broadband emission material according to the present invention includes: a fluoride glass containing 20 to 45 mol % of AlF | 03-31-2016 |
| 20160172816 | Metafilm for Loss-Induced Super-Scattering and Gain-Induced Absorption of Electromagnetic Wave | 06-16-2016 |
| 20160380402 | PULSED LIGHT BEAM SPECTRAL FEATURE CONTROL - A system includes a first actuation module coupled to a first actuatable apparatus of an optical source, the first actuatable apparatus being altered by the first actuation module to adjust the spectral feature of the pulsed light beam; a second actuation module coupled to a second actuatable apparatus of the optical source, the second actuatable apparatus being altered by the second actuation module to adjust the spectral feature of the pulsed light beam; and a control system configured to receive an indication regarding the operating state of the first actuatable apparatus; and send a signal to the second actuation module to adjust the spectral feature of the pulsed light beam to either: prevent the first actuatable apparatus from saturating based on the operating state of the first actuatable apparatus, or desaturate the first actuatable apparatus if the first actuatable apparatus is saturated. | 12-29-2016 |
