| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 372040000 | Amorphous (e.g., glass) | 20 |
| 20080212629 | Ultra-low heat laser - An ultra-low heat laser that does not rely on florescence cooling. Generally, the inventive laser includes a pump source operable at a pump frequency and a gain medium disposed to receive energy from the source and lase at a frequency close to the pump frequency. In the illustrative embodiment, the laser is a solid state laser having a gain medium which is resonantly pumped to lase at a frequency within 5% of the pump frequency. However, in the best mode and in accordance with the present teachings, the gain medium lases at a frequency within 1% of the pump frequency. In the illustrative embodiment, the laser gain medium ion has a rich Stark energy level structure and the laser active gain medium has oscillator strengths at transitions wavelengths that allow an ultra-low quantum defect operation. The pump source has a wavelength output centered to correspond to a predetermined pump band and an emission band subtended by an absorption bandwidth thereof. | 09-04-2008 |
| 20080240186 | Polygonal cross-section laser rod for low-cost flashlamp-pumped laser - A laser rod and methods of manufacturing a plurality of laser rods such that each laser rod has two polished end surfaces and an optical axis that extends between the two polished end surfaces. The laser rod includes a gain material component that has a substantially prismatic shape. The gain material component includes: a first end surface that is substantially optically smooth; a second end surface that is substantially optically smooth; at least three flat side surfaces; and an optical axis, which is substantially parallel to the flat side surfaces. The optical axis intersects the first end surface at a first incidence angle and it intersects the second end surface at a second incidence angle. | 10-02-2008 |
| 20100061415 | OPTICAL FIBRE MATERIAL COMPRISING SILICA-BASED GLASS WITH REDUCED PHOTO DARKENING - The invention relates to a waveguide laser or amplifier material comprising a silica glass host material, one or more rare earth elements in total concentration CRE at. %, one or more network modifier elements selected from the group of tri- or penta-valent atoms of the periodic table of the elements in total concentration CNME at. %, wherein the ratio of atomic concentrations of the modifier elements to that of the rare earth elements CNWCRE is larger than or equal to 1, and wherein the total atomic concentration of rare earth and the tri-valent network modifiers, such as aluminium and/or boron, is substantially equal to the atomic concentration of the penta-valent network modifier, such as phosphorous. Such materials exhibit reduced risk of photo darkening. | 03-11-2010 |
| 20100098125 | SELF-POWERED RANDOM SCATTERING LASER DEVICES - The present disclosure relates to a self-powered, random scattering laser generating device comprising a housing comprises an opening and an inner chamber, at least one quantum dot positioned inside the inner chamber, a high-energy emitting source positioned within the inner chamber and in radioactive communication with the at least one quantum dot, and a first lasing medium. The present disclosure also relates to a method comprising providing at least one quantum dot, contacting the at least one quantum dot with a high-energy emitting source whereby randomly scattered light is produced, partially coherently amplifying the randomly scattered light emitted from the at least one quantum dot, and generating a random scattering laser. | 04-22-2010 |
| 20100202481 | LIGHT EMITTING DEVICES WITH PHOSPHOSILICATE GLASS - A light-emitting device is provided which includes a gain medium having an optically-active phosphosilicate glass, wherein the phosphosilicate glass includes at least one active ion dopant and from about 1 to 30 mol % of phosphorus oxide. The phosphorous oxide may be present in an effective amount for reducing any photodarkening effect and increasing the saturation energy of the system. The active ion dopant may be a rare earth dopant. The light-emitting device may include an optical waveguide, the optical waveguide including the gain medium. The optical waveguide may have a core and at least one cladding, and the gain medium having the phosphosilicate glass may be found in the core and/or in one of the cladding | 08-12-2010 |
| 20110069728 | Diode Pumped Ytterbium Doped Laser - Diode pumped, ytterbium doped glass or glass ceramic lasers are provided. A laser source is provided comprising an optical pump, a glass or glass ceramic gain media, a wavelength conversion device, and an output filter. The gain media comprises a ytterbium doped glass or a ytterbium doped glass ceramic gain media and is characterized by an absorption spectrum comprising a maximum absorption peak and a sub-maximum absorption peak, each disposed along distinct wavelength portions of the absorption spectrum of the gain media. The optical pump and the gain media are configured such that the pump wavelength λ is more closely aligned with the sub-maximum absorption peak of the gain media than the maximum absorption peak of the gain media. Additional embodiments are disclosed and claimed. | 03-24-2011 |
| 20110206078 | P-ELEMENT DOPED LASER MEDIUM APPARATUS AND METHOD - A glass composition for use as a laser medium, a method for producing the glass composition, and a laser apparatus including the glass composition are provided. The glass composition includes a host glass; a 3p component having a concentration of about 5 mole percent to about 10 mole percent; and at least one of a 6p component having a concentration of about 1 mole percent to about 5 mole percent and a 5p component having a concentration of about 1 mole percent to about 5 mole percent. | 08-25-2011 |
| 20120033693 | REAR EARTH ALUMINOBOROSILICATE GLASS COMPOSITION - The invention relates to aluminoborosilicate-based glasses suitable for use as a solid laser medium. In particular, these aluminoborosilicate-based laser glasses exhibit broad emission bandwidths of rare earth lasing ions. Although not entirely understood, the broadening of the emission bandwidth is believed to be achieved by the presence of significant amounts of lanthanide ions in the glass matrix. In addition, because of the high values of Young's modulus, fracture toughness and hardness, the rare earth aluminoborosilicate glass system according to the invention is also suitable as transparent armor window material. | 02-09-2012 |
| 20120033694 | BROADENING OF RARE EARTH ION EMISSION BANDWIDTH IN PHOSPHATE BASED LASER GLASSES - Disclosed are the use of phosphate-based glasses as a solid state laser gain medium, in particular, the invention relates to broadening the emission bandwidth of rare earth ions used as lasing ions in a phosphate-based glass composition, where the broadening of the emission bandwidth is believed to be achieved by the hybridization of the glass network. | 02-09-2012 |
| 20120063479 | ALUMINOPHOSPHATE GLASS COMPOSITION - The invention relates to aluminophosphate-based glasses suitable for use as a solid laser medium, which further contains SiO | 03-15-2012 |
| 20120269219 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser according to the present invention comprises a λ/2 dielectric film (λ: in-medium wavelength of a dielectric film, for example, SiO | 10-25-2012 |
| 20130343416 | ELEMENT FOR THE AMPLIFICATION OF A LIGHT AND METHOD OF MAKING THE SAME - An element for the amplification of a light by stimulated emission of radiation and a method of making the same is described herein. | 12-26-2013 |
| 20140146839 | TUNING RARE EARTH ION EMISSION WAVELENGTH IN PHOSPHATE BASED GLASSES USING CERIUM OXIDE - The invention relates to a Nd-doped (and/or Yb-doped and/or Er-doped) phosphate laser glass having a peak emission wavelength that is shorter than 1054 nm. Cerium oxide (CeO | 05-29-2014 |
| 20140146840 | BROADENING THE RARE EARTH ION EMISSION BANDWIDTH, INCREASING EMISSION CROSS SECTION, AND OR SHIFTING PEAK EMISSION WAVELENGTH IN ND DOPED ALUMINATE OR SILICATE GLASSES - The invention relates to a Nd-doped, aluminate-based or silicate-based, laser glass having a peak emission wavelength that is longer than 1059.7 nm, an emission cross section (σ | 05-29-2014 |
| 20140146841 | ULTRA-BROAD BANDWIDTH LASER GLASSES FOR SHORT-PULSE AND HIGH PEAK POWER LASERS - The invention relates to glasses for use in solid laser applications, particularly short-pulsed, high peak power laser applications. In particular, the invention relates to a method for broadening the emission bandwidth of rare earth ions used as lasing ions in solid laser glass mediums, especially phosphate-based glass compositions, using Nd and Yb as co-dopants. The invention further relates to a laser system using a Nd-doped and Yb-doped phosphate laser glass, and a method of generating a laser beam pulse using such a laser system. | 05-29-2014 |
| 20140153600 | Optical Light Source - An optical light source is provided. The optical light source includes a waveguide including two reflectors arranged spaced apart from each other to define an optical cavity therebetween, an optical gain medium, and a coupling structure arranged to couple light between the optical cavity and the optical gain medium. | 06-05-2014 |
| 20140247848 | BROADENING THE RARE EARTH ION EMISSION BANDWIDTH, INCREASING EMISSION CROSS SECTION, AND OR SHIFTING PEAK EMISSION WAVELENGTH IN ND DOPED ALUMINATE OR SILICATE GLASSES - The invention relates to a Nd-doped, aluminate-based or silicate-based, laser glass having a peak emission wavelength that is longer than 1059.7 nm, an emission cross section (σ | 09-04-2014 |
| 20140269800 | PHOTONIC DEVICES AND METHODS OF USING AND MAKING PHOTONIC DEVICES - Examples of the present invention include integrated erbium-doped waveguide lasers designed for silicon photonic systems. In some examples, these lasers include laser cavities defined by distributed Bragg reflectors (DBRs) formed in silicon nitride-based waveguides. These DBRs may include grating features defined by wafer-scale immersion lithography, with an upper layer of erbium-doped aluminum oxide deposited as the final step in the fabrication process. The resulting inverted ridge-waveguide yields high optical intensity overlap with the active medium for both the 980 nm pump (89%) and 1.5 μm laser (87%) wavelengths with a pump-laser intensity overlap of over 93%. The output powers can be 5 mW or higher and show lasing at widely-spaced wavelengths within both the C- and L-bands of the erbium gain spectrum (1536, 1561 and 1596 nm). | 09-18-2014 |
| 20150364898 | LASER WITH SUB-WAVELENGTH HOLE ARRAY IN METAL FILM - A sub-wavelength scale optical lasing device, for the controlled transfer of a signal in nano- and other small-scale technologies. An array of sub-wavelength size holes is first milled, or otherwise embedded, into a thin metal film. This film is combined with optically active media to compensate for losses of the metal. Optical signals are emitted in the active media, and then transferred to the metal so that surface plasmon polaritons are excited. Lasing occurs as a result of the compensation of plasmonic losses by the available optical gain. | 12-17-2015 |
| 20190148903 | PLANAR WAVEGUIDE LASER DEVICE | 05-16-2019 |
