Quotables
"Man will not fly for 50 years."
Wilbur Wright ; 1901
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7430224 | Automatic dispersion compensation in amplification for short pulse fiber laser system A fiber Chirped Pulse Amplification (CPA) laser system includes a fiber mode-locking oscillator for generating a laser for projecting to a fiber stretcher for stretching a pulse width of the laser wherein the stretcher further comprising a Photonic Bandgap (PBG) fib... | 09/30/2008 |
| 7403550 | Quasi-CW UV laser with low peak pulse-power An in vivo screening assay for identifying an agent that interferes with T cell activation and/or -differentiation and/or modulation of other inflammatory effector cells. ... | 07/22/2008 |
| RE40019 | High power high efficiency cladding pumping fiber laser In the present invention, methods and apparatus for making efficient cladding pumping fiber lasers is disclosed. In particular, new fiber cladding geometry and new method of coupling pumping laser into an optical fiber are disclosed. Both aspects of the present inve... | 01/22/2008 |
| 7321605 | Helical optical pulse stretcher A pulse stretcher includes a single pass pulse stretcher. An optical system is arranged around the single pass pulse stretcher. A beam enters the single pass stretcher and is reflected in a helical path using the optical system for multiple passes through the single... | 01/22/2008 |
| 6967977 | Optical pulse train generator A laser source provides a pulse that is subdivided and replicated into subpulses by a delay structure having a plurality of steps. Each of the subpulses is delayed by one of the plurality of steps and the amount that each subpulse is delayed is different than the ot... | 11/22/2005 |
| 6693930 | Peak power and speckle contrast reduction for a single laser pulse A system and method for reducing peak power of a laser pulse and reducing speckle contrast of a single pulse comprises a plurality of beamsplitters, mirrors and delay elements oriented to split and delay a pulse or pulses transmitted from a light emitting... | 02/17/2004 |
| 6549267 | Pulse-width extending optical systems, projection-exposure apparatus comprising same, and manufacturing methods using same This invention pertains to systems for extending the pulse length of pulsed sources of optical radiation. These systems reduce peak optical pulse power without reducing average optical power. The pulse-width extending systems split optical pulses into pul... | 04/15/2003 |
| 6546037 | Molecular fluorine laser with spectral linewidth of less than 1 pm A narrow band molecular fluorine laser system includes an oscillator and an amplifier, wherein the oscillator produces a 157 nm beam having a linewidth less than 1 pm and the amplifier increases the power of the beam above a predetermined amount, such as ... | 04/08/2003 |
| 6389045 | Optical pulse stretching and smoothing for ArF and F2 lithography excimer lasers A method and apparatus are provided for temporally stretching and smoothing of the pulses of an output beam of excimer and lithography lasers. The method and apparatus are based upon providing an optical delay line or circuit having a plurality of optical... | 05/14/2002 |
| 6385215 | Laser oscillation method and device and laser scalpel A laser oscillation device, which has an optical fiber where laser ion is doped; an excitation emission element that generates one laser beam including multiple wavelength components by exciting the laser ion in the optical fiber by light emission; a tota... | 05/07/2002 |
| 6101199 | High power high efficiency cladding pumping fiber laser In the present invention, methods and apparatus for making efficient cladding pumping fiber lasers is disclosed. In particular, new fiber cladding geometry and new method of coupling pumping laser into an optical fiber are disclosed. Both aspects of the p... | 08/08/2000 |
| 5995524 | Real-time dynamic chirp measurements of optical signal A method of and apparatus for measuring chirp passes an input modulated optical signal through a Waveguide Grating Router (WGR) and processes the signals from adjacent WGR output ports in an oscilloscope, to obtain the real-time dynamic chirp measurements... | 11/30/1999 |
| 5852620 | Tunable time plate A tunable time plate device for providing a continually adjustable time delay between two linearly polarized laser pulses ω1 and ω2. The device comprises a time plate made of a parallel flat birefringence crystal having a principal... | 12/22/1998 |
| 5828680 | Hybrid type passively and actively mode-locked laser scheme A hybrid type passively and actively mode-locked laser scheme is disclosed, in which not only the capability of producing ultra-short optical pulses by the conventional passively mode-locked optical fiber laser scheme is utilized, but also the repetition ... | 10/27/1998 |
| 5699371 | Light pulse generator A light pulse generator is disclosed comprising an optical main-loop, a pumped-light source, a delay optical fiber, and an optical switch controller. The optical main-loop circulates a light and includes a light mixer, a light isolator, an erbium-doped op... | 12/16/1997 |
| 5671241 | Tunable source of narrowband coherent radiation A tunable source of narrowband coherent radiation comprises a pulsed pump laser (10), an optical parametric oscillator or amplifier (12) and a so-called master oscillator (14). The narrowband output radiation of the master oscillator serves as seed radiat... | 09/23/1997 |
| 5661748 | Laser pulse extender A device for extending the duration of a light pulse by a factor of an integer or by a factor which differs from an integer. The light pulse is passed through a device which divides the initial beam into a number of parts, where the first part passes unhi... | 08/26/1997 |
| 5602677 | Dispersive optical delay line and use thereof for the compression/expansion of laser pulses A dispersive, optical delay line for frequency modulated light wave pulses, especially laser waves, comprises a first optical grating and a second optical grating that are parallel to each other, separated by a distance d and localized with a pitch a on t... | 02/11/1997 |
| 5513194 | Stretched-pulse fiber laser A fiber laser for producing high energy ultrashort laser pulses, having a positive-dispersion fiber segment and a negative-dispersion fiber segment joined in series with the positive-dispersion fiber segment to form a laser cavity. With this configuration... | 04/30/1996 |
| 5475525 | Transverse electrical filter operating optically The invention relates to a programmable transverse filter required for the matched filtering of signals with very wide passband. The signals to be filtered modulate one or more optical carriers (F1) in a modulator (MOD). Each carrier is distributed over s... | 12/12/1995 |
| 5461687 | Wavelength controlled optical true time delay generator A wavelength controlled optical true time delay generator (14) utilizes passive switching to direct an optical beam to different length paths depending on the input wavelength. In one embodiment a dispersive element (20) is used to reflect the input beam ... | 10/24/1995 |
| 5448417 | Laser pulse synthesizer A system that modifies a pulsed or continuous wave light beam of arbitrary frequency bandwidth facilitating optical pulse synthesis and pulse compression while largely conserving light energy. An electro-optic deflector scans a light pulse through an opti... | 09/05/1995 |
| 5343489 | Arrangement for shaping a laser beam and for reducing the coherence thereof The invention is directed to an arrangement for shaping a laser beam and for reducing the coherence thereof. The arrangement has at least two approximately parallel mirrors arranged approximately perpendicular to the laser beam. One of the mirrors is full... | 08/30/1994 |
| 5337333 | Laser beam pulse formatting method A method for formatting a laser beam pulse (20) using one or more delay loops (10). The delay loops (10) have a partially reflective beam splitter (12) and a plurality of highly reflective mirrors (14) arranged such that the laser beam pulse (20) enters i... | 08/09/1994 |
| 5317577 | Optical wavelength shifter using nonlinear refractive medium disposed interiorly of laser resonator An optical wavelength shifter shifts a wavelength of light over a wide range without need for using a large peak pump pulse. A nonlinear optical medium having a nonlinear refractive index is disposed interiorly of a laser resonator. A pump pulse and a lig... | 05/31/1994 |
| 5315604 | Optical structure for adjusting the peak power of a laser beam Structure is disclosed for the ablation of material by the use of a laser beam wherein the laser provides a beam which is directed through an illumination and projection optical system for imaging on the material which is to be ablated. In the present inv... | 05/24/1994 |
| 5309456 | Pulse stretcher Apparatus (20) for increasing the length of a laser pulse to reduce its peak power without substantial loss in the average power of the pulse. The apparatus (20) uses a White cell (10) having a plurality of optical delay paths (18a-18d) of successively in... | 05/03/1994 |
| 5227912 | Multiple-stage optical Kerr gate system A multiple-stage optical Kerr gate system for gating a probe pulse of light. In a first embodiment, the system includes at least two optical Kerr gates, each Kerr gate including a polarizer, an optical Kerr cell actuable by a pump pulse, and an analyzer. ... | 07/13/1993 |
| 5222070 | Optical pulse oscillator and light frequency measuring apparatus using the same A microwave active element is connected in series to a drive circuit of a laser light emitting element and the laser light emitting element is caused to operate as a microwave resonator as viewed from the microwave active element. Laser light from the las... | 06/22/1993 |
| 5197075 | Apparatus and method for the generation of modulated optical signals using a semiconductor laser A system for the generation of modulated optical signals, wherein to the d.c. bias current of a semiconductor laser (1) associated with an opto-electronic feedback circuit (2) including a delay, there are superimposed the variations of a current obtained ... | 03/23/1993 |
| 5166818 | Optical pulse-shaping device and method, and optical communications station and method For use, e.g., in the compensation of frequency dispersion in the course of transmission of an optical signal, a pulse-shaping device is provided with a suitably shaped nonplanar mirror (16). When spatially spread-out frequency components--produced, e.g.,... | 11/24/1992 |
| 5077621 | Optical pulse compressor An optical pulse compressor having a single deflecting dispersive optical element in the form of a diffraction grating (10) or prism for temporal compression of an optical pulse, the frequency of which increases during the pulse duration. An elongated tar... | 12/31/1991 |
| 5058973 | Device for reading by optical sensor coherence A reading device operates by the placing in interference of a reference signal, in the form of a fundamental wave train, with delayed wave trains constituting the useful signal. The device comprises an interferometer, a first branch (32) of which is trave... | 10/22/1991 |
| 4866721 | Pulsed laser stabilizing device A highly repetitively pulsed laser stabilizing device which comprises a laser resonator, a feedback system for optically delaying an optical pulse emitted from the laser resonator and returning it in such a manner that it is superposed on an optical pulse... | 09/12/1989 |
| 4864587 | Multiple beam gas laser and method A pulsed gas laser having two spaced optical resonators each associated with a pair of high voltage electrodes. The first and second pairs of electrodes are positioned within a common plasma chamber including means for circulating a laser gas successively... | 09/05/1989 |
| 4834474 | Optical systems using volume holographic elements to provide arbitrary space-time characteristics, including frequency-and/or spatially-dependent delay lines, chirped pulse compressors, pulse hirpers, pulse shapers, and laser resonators Optical systems, using volume holographic elements (gratings) having geometries which tailor the spatio-temporal dispersion of the optical pulses for the system. The input optical pulse is characterized by a frequency variation across the temporal profile... | 05/30/1989 |
| 4714314 | Mode dependent, optical time delay system for electrical signals A mode dependent, optical time delay system for electrical signals having a highly multi-mode optical fiber having a step index profile in optical alignment with an optical source which is capable of converting an incoming electrical signal into an optica... | 12/22/1987 |
| 4564947 | High-power lasers A high-power flowing-gas laser comprises an outer housing, an optical system including a laser channel within the housing, and an impeller for producing a flow of gas through the laser channel. The laser channel is folded so as to be constituted of a plur... | 01/14/1986 |
| 4500998 | Gas laser The invention is to provide a gas laser in which a discharge tube of a double-tube construction comprising a inner tube and an outer tube of a relatively large diameter is employed, a tubular discharge space filled with a gas mixture is formed between the... | 02/19/1985 |
| 4486887 | High-power lasers A high-power flowing-gas laser comprises a laser channel folded to include at least two legs angularly disposed to each other in a common plane and having a single folding mirror between them such that the laser rays through one leg, on the upstream side ... | 12/04/1984 |
