Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Application No. | Application Title | Issue Date |
| 20120044959 | TERAHERTZ SOURCE An optical system includes a first gain medium configured to be excited by an energy source and in response generate a first optical signal having first and second wavelengths. A Q-switch is disposed adjacent to the first gain medium for generating a pulsed optical sign... | 02/23/2012 |
| 20120027031 | Amplified Broadband Fiber Laser Source Methods and systems for generating a supercontinuum light source, including generating electromagnetic radiation from a seed laser; coupling the seed laser electromagnetic radiation to a fiber amplifier comprising: a pump laser, a fiber coupler comprising an input and a... | 02/02/2012 |
| 20120020378 | WIDELY TUNABLE OPTICAL PARAMETRIC GENERATOR HAVING NARROW BANDWIDTH FIELD Systems, methods and apparatus are provided through which in some implementations mode selection and wavelength tuning of optical parametric generation is achieved through intrinsic nonlinear crystal dispersion.... | 01/26/2012 |
| 20110255562 | PLANE WAVEGUIDE TYPE LASER AND DISPLAY DEVICE A plane waveguide type laser according to the present invention includes: a plate-shaped laser medium (5); a semiconductor laser (1) which causes excitation light to enter an end surface (5a) of the laser medium (5); first and second c... | 10/20/2011 |
| 20110243162 | INFRARED RAY TRANSMISSIVE OPTICAL MEMBER AND MANUFACTURING METHOD THEREOF, OPTICAL DEVICE, AND OPTICAL APPARATUS An optical member made of polycrystalline silicon formed from high-purity trichlorosilane as a raw material, and that absorbs and scatters an infrared ray in a wavelength region of 4 μm or less. In the optical member, a ratio A/B between a transmittance A of an infrare... | 10/06/2011 |
| 20110243161 | FREQUENCY CONVERSION OF A LASER BEAM USING A PARTIALLY PHASE-MISMATCHED NONLINEAR CRYSTAL The invention relates to a laser system including a nonlinear crystal having a first length portion and a second length portion. The nonlinear crystal disposed to receive input light from the laser for converting the input light into frequency converted light; wherein t... | 10/06/2011 |
| 20110222564 | METHODS AND APPARATUS FOR GENERATING TERAHERTZ RADIATION Apparatus and methods for generating radiation via difference frequency generation (DFG). In one exemplary implementation, a quantum cascade laser (QCL) has a significant second-order nonlinear susceptibility (χ(2)) integrated in an active region of the QCL.... | 09/15/2011 |
| 20110194171 | OPTICAL WAVELENGTH CONVERSION ELEMENT, WAVELENGTH CONVERSION LASER DEVICE, AND IMAGE DISPLAY DEVICE An optical wavelength conversion element includes: a wavelength conversion waveguide that has a periodic polarization reversal structure having alternately and cyclically formed domains of which polarization directions are inverted, that guides light as a fundamental wa... | 08/11/2011 |
| 20110188523 | TEMPERATURE CONTROL SYSTEM FOR A FREQUENCY CONVERTED DIODE LASER Apparatus and methods of controlling a frequency-converted diode laser system are disclosed. The diode laser systems can include embodiments of thermally coupled elements facilitating temperature stabilization. Aspects of some methods include monitoring the output of a ... | 08/04/2011 |
| 20110170172 | WAVELENGTH CONVERSION LASER DEVICE AND IMAGE DISPLAY DEVICE USING THE SAME A wavelength conversion laser device includes a laser light source which emits a laser beam, two reflective surfaces which reflect therefrom a laser beam, a wavelength converter provided between the two reflective surfaces, which converts a laser beam into a wavelength-... | 07/14/2011 |
| 20110116519 | APPARATUS AND METHOD FOR CONVERTING LASER ENERGY Provided are an apparatus and a method for converting laser energy, characterized by employing an optical parametric oscillator for converting light of a green laser wavelength into light of a blue or red laser wavelength via a phase matching structure, by means of a no... | 05/19/2011 |
| 20110075690 | Pump recycling scheme for terahertz generation Structures and techniques are disclosed that enable efficient generation of terahertz (THz) radiation capable of surpassing the fundamental quantum limit, as defined by the Manley-Rowe relations. In one particular embodiment, a difference frequency mixing (DFM) crystal ... | 03/31/2011 |
| 20110058578 | LASER AND A METHOD FOR OPERATING THE LASER A laser comprising: a resonator cavity defined by at least two reflectors, wherein the at least two reflectors are highly reflective at a plurality of fundamental wavelengths; a laser medium disposed in the resonator cavity capable of generating plurality of fundamental... | 03/10/2011 |
| 20110051755 | Frequency Conversion Laser Head A laser assembly is configured with a frequency conversion laser head operative to shift a fundamental frequency of input light to the desired frequency of an output light. The frequency conversion laser head includes a dump means operative to guide an unconverted outpu... | 03/03/2011 |
| 20110044360 | INTRACAVITY WAVELENGTH CONVERSION SOLID-STATE LASER GENERATOR Fundamental laser light having a wavelength of 1,064 nm, for example, is generated by a solid-state laser medium. The fundamental laser light is reflected by a flat mirror and amplified again passing through a Q-switch, a solid-state laser medium, a Q-switch, a Q-switch... | 02/24/2011 |
| 20110026548 | LASER LIGHT SOURCE MODULE When a laser light source module includes a heat sink in which a solid laser element, an excitation light source, and a wavelength conversion element are arranged and a stem that supports the heat sink, wherein the heat sink is separated into three blocks, namely a firs... | 02/03/2011 |
| 20110007760 | Source of Femtosecond Laser Pulses A source of femtosecond laser pulses (50) comprising a 980 nm picosecond seed pulse source (12), a Ytterbium (Yb) doped fibre amplifier (14) operating in the three-level regime, a passive air-clad fibre (52) and a pulse compressor (16)... | 01/13/2011 |
| 20100329289 | METHOD AND APPARATUS FOR GENERATING OPTICAL BEATS Apparatus comprising an optical fibre laser having at least two laser cores and means arranged to combine laser output from the at least two laser cores at a first end of the optical fibre laser to produce a combined laser output having one or more beat signals.... | 12/30/2010 |
| 20100303108 | WAVELENGTH CONVERTING ELEMENT AND WAVELENGTH CONVERTING LASER APPARATUS A wavelength converting element that is of a planar waveguide type, includes a plate-like nonlinear optical material, and performs a wavelength conversion on a fundamental wave of a laser beam by propagating the fundamental wave in a plurality of laser oscillation modes... | 12/02/2010 |
| 20100290487 | RECYCLING PUMP-BEAM METHOD AND SYSTEM FOR A HIGH-POWER TERAHERTZ PARAMETRIC SOURCE A method and a system are implemented in the fabrication of a portable high power terahertz beam source that can produce a tunable, high power terahertz beam over the frequency from 0.1 THz to 2.5 THz. The terahertz source employs a recycling pump beam method and a beam... | 11/18/2010 |
| 20100260213 | LASER LIGHT SOURCE DEVICE AND IMAGE DISPLAY DEVICE The present invention concerns a laser light source device capable of multiwavelength oscillation. This laser light source device is provided with a laser light source; a laser cavity including a fiber, a first fiber grating provided at a side of the fiber toward the la... | 10/14/2010 |
| 20100238957 | OPO Laser Mid-IR Wavelength Converter A wavelength converter comprising an arsenic sulfide (As—S) chalcogenide glass fiber coupled to an optical parametric oscillator (OPO) crystal and a laser system using an OPO crystal coupled to an As—S fiber are provided. The OPO receives pump laser radiation from a... | 09/23/2010 |
| 20100220384 | LASER DEVICE, LASER DISPLAY APPARATUS, LASER RADIATING APPARATUS, AND NONLINEAR OPTICAL ELEMENT A laser device, includes: a fundamental wave generating portion configured to generate a plurality of fundamental waves having wavelengths which are different from each other in at least one set thereof, the fundamental wave generating portion having a semiconductor las... | 09/02/2010 |
| 20100215065 | Coherent multiple-stage optical rectification terahertz wave generator The present invention coherent multiple-stage optical rectification terahertz wave generator discloses the generation of single-cycle terahertz radiation with two-stage optical rectification in GaSe crystals. By adjusting the time delay between the pump pulses employed ... | 08/26/2010 |
| 20100195677 | PULSED LASER SOURCES Various embodiments include modelocked fiber laser resonators that may be coupled with optical amplifiers. An isolator may separate the laser resonator from the amplifier, although certain embodiments exclude such an isolator. A reflective optical element on one end of ... | 08/05/2010 |
| 20100150186 | LASER LIGHT SOURCE AND DISPLAY DEVICE According to the present invention, a laser light source comprises plural semiconductor lasers (2), a solid laser (4), a non-linear material (3) as a wavelength conversion element, a reflection coat (5) formed on one facet of the solid laser,... | 06/17/2010 |
| 20100150187 | LASER A laser apparatus in which the elimination of separate optical components to provide intra-cavity polarization and compensation for thermally induced birefringence, and their associated losses, results in an improvement in efficiency and reduction in complexity over pri... | 06/17/2010 |
| 20100142570 | PULSED LASER LIGHT SOURCE BASED ON FREQUENCY CONVERSION A light emitting device including a waveguide having an electrically pumped gain region, a saturable absorber, a nonlinear crystal, an inclined mirror, and a light-concentrating structure. Light pulses emitted from the gain region are reflected by the inclined minor and... | 06/10/2010 |
| 20100142569 | System and Method for Optical Frequency Conversion A system and method for optical frequency conversion having asymmetric output include a coherent light apparatus. The coherent light apparatus includes a coherent light source that produces a first coherent light, a frequency converter optically coupled to the coherent ... | 06/10/2010 |
| 20100135338 | Device for generation of tunable light pulses A device for generating light pulses includes a seed laser source for generating input light pulses. An optical pre-amplifier having variable gain receives the input light pulses from the seed laser source. An optical power amplifier receives the light pulses from the o... | 06/03/2010 |
| 20100103965 | Light Source Device A first light source device using a transition element-doped optical waveguide as a light emitter, which is characterized in that a light output end and an excitation light source to excite the transition element-doped optical waveguide are connected to one end of the t... | 04/29/2010 |
| 20100074281 | Thulium Laser Pumped Mid-IR Source With Multi-Spectral Line Output A Thulium laser (15) is used to directly drive a ZnGeP2 optical parametric oscillator (30) with a nominal 2 μm output to simultaneous generate outputs at 2 microns and multiple outputs in the 3-5 micron wavelength range. In one embodiment, the ... | 03/25/2010 |
| 20100061410 | System and method for controlling nonlinearities in laser units An optical system includes a launching component radiating a beam of light at a fixed power, a specialty component, which receives the beam and is configured with a transverse mode field diameter different from that one of the launching component, and a focusing compone... | 03/11/2010 |
| 20100054286 | Semiconductor Diode Pumped Laser Using Heating-Only Power Stabilization A laser system such as a DPSS green laser uses a laser diode pump source that is specially selected so that the wavelength of diode source is centered around the optimal source wavelength, typically 808 nm, which produces the optimal green laser output from the system. ... | 03/04/2010 |
| 20100040335 | LIFETIME EXTENDING AND PERFORMANCE IMPROVEMENTS OF MICRO-STRUCTURED FIBRES VIA HIGH TEMPERATURE LOADING The invention relates to an optical fibre comprising a core and a cladding comprising a core material and a cladding material, respectively, wherein said fibre is a non-linear microstructured optical fibre, said microstructured optical fibre being obtainable by a method... | 02/18/2010 |
| 20100027571 | Stabilized near-infrared laser A traveling wave ring-resonator is configured to deliver CW single-longitudinal-mode radiation having a fundamental wavelength characteristic of an optically pumped gain-element in the resonator. The delivered fundamental-wavelength radiation is the output-radiation of ... | 02/04/2010 |
| 20100020834 | QUADRATIC NONLINEARITY-BASED HIGH-ENERGY PULSE COMPRESSOR FOR GENERATING FEW-CYCLE PULSES A pulse compressor for compressing many-cycle femtosecond-duration high-energy pulses to near-single-cycle durations uses a single quadratic nonlinear crystal. A pulsed laser beam is controlled and its passage is aligned through the quadratic nonlinear crystal such that... | 01/28/2010 |
| 20100014543 | LASER AND A METHOD FOR OPERATING THE LASER A laser comprising: a resonator cavity defined by at least two reflectors, wherein the at least two reflectors are highly reflective at a plurality of fundamental wavelengths; a laser medium disposed in the resonator cavity capable of generating plurality of fundamental... | 01/21/2010 |
| 20090316738 | DEVICE FOR AMPLITUDE AND PHASE PROGRAMMING OF LONG LIGHT PULSES WITH NARROW SPECTRAL BAND STARTING FROM A MODULATOR OF SHORT LIGHT PULSES WITH WIDE SPECTRAL BAND Device for adaptation of a programmable generator of ultra short wide spectral band light pulses, to long narrow spectral band light pulses comprising a laser source (1) of ultra-short wide spectral band pulses, a device (2) for dispersion of ultra-short p... | 12/24/2009 |
| 20090310631 | High-Repetition-Rate Guided-Mode Femtosecond Laser Femtosecond pulse trains in waveguide lasers with high fundamental repetition rates are achieved by exploiting the nonlinearity in the waveguide. Components of the apparatus include an optical resonator, a saturable absorber for starting and stabilizing mode-locking, an... | 12/17/2009 |
