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8175133 |
Laser-induced optical wiring apparatus
A laser-induced optical wiring apparatus is provided wherein optical wiring is realized by digital operations of a laser oscillator. The apparatus includes optical ring resonator formed of a...
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8175125 |
Laser device
A laser device includes an outcoupling mirror, a laser medium, a phase-conjugate mirror based on stimulated Brillouin scattering, and an end mirror all arranged along an optical axis of the laser...
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8170076 |
GaN laser element
In a GaN-based laser device having a GaN-based semiconductor stacked-layered structure including a light emitting layer, the semiconductor stacked-layered structure includes a ridge stripe...
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8149892 |
Structure having photonic crystal and surface-emitting laser
In a structure having a two-dimensional photonic crystal in which structures having different refractive indices are disposed at a two-dimensional period and comprising a structure emitting in a...
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8144738 |
External cavity wavelength tunable laser device and optical output module
In an external cavity wavelength tunable laser device including an external cavity (20) which includes a semiconductor optical amplifier (2) and performs laser oscillation operation by feeding back...
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8139616 |
Pulsed light generator and pulsed fiber laser
A pulsed light generator of the invention includes: an excitation light source; a fiber grating into which excitation light from the excitation light source enters; a rare-earth doped optical fiber...
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8130799 |
Environmentally stable passively modelocked fiber laser pulse source
The present invention is directed to providing an environmentally stable, ultra-short pulse source. Exemplary embodiments relate to passively modelocked ultra-short fiber lasers which are...
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8130800 |
Mode-locked solid state lasers using diode laser excitation
A mode-locked laser employs a coupled-polarization scheme for efficient longitudinal pumping by reshaped laser diode bars. One or more dielectric polarizers are configured to reflect a pumping...
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8124995 |
Semiconductor light-emitting device
A semiconductor light-emitting device includes a semiconductor light-emitting element emitting light in a region ranging from ultraviolet to visible, and a visible-light luminescent element...
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8121171 |
Optical systems for laser arrays
Surface emitting laser arrays with intra-cavity harmonic generation are coupled to an optical system that extracts harmonic light in both directions from an intra-cavity nonlinear optical material...
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8073017 |
System and method for generating eye-safe high intensity optical pulses with two backward-shifting raman cells
A system and method for converting a pulsed beam of irradiation from a laser operating at a first wavelength to a pulsed beam of irradiation at a second, Stokes, wavelength. The system includes two...
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8073025 |
Laser light source
The present invention relates to a laser light source having a structure for narrowing a wavelength bandwidth of output light. The laser light source comprises, at least, a laser resonator, a...
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8050300 |
Laser beam source device, lighting device, image display apparatus, and monitoring apparatus
A laser beam source device includes: a light source which emits light having fundamental wavelength; a wavelength conversion element which converts the light having fundamental wavelength into...
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8018981 |
Multi-pass optical cell with actuator for actuating a reflective surface
A multi-pass optical cell with an actuator for actuating a reflective surface is provided. In one preferred embodiment, an apparatus is provided comprising a first reflective surface, a second...
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8012780 |
Method of fabricating semiconductor laser
There is provided a method of fabricating a semiconductor laser including a two-dimensional photonic crystal. The method comprises the steps of growing an InX1Ga1âX1N (0
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8014432 |
Regenerative ring resonator
A laser includes a regenerative ring resonator that includes a discharge chamber having electrodes and a gain medium between the electrodes for producing a laser beam; a partially-reflective...
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8014433 |
Laser apparatuses with large-number multi-reflection pump systems
A large number of passes of pump light through an active mirror in a solid state disk laser is realized using a pair of coupled imaging systems, where the optical axes of imaging systems are not...
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8009716 |
Plasmon stabilized unimodal laser diodes
A device having a light cavity includes, at one end, a plasmonic reflector having a grating surface for coupling incoming light into traverse plasmon waves and for coupling the traverse plasmon...
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8002413 |
Light source unit and projector
There is provided a light source unit which includes a luminescent light source which receives excitation light so as to emit light of a predetermined wavelength band, excitation light sources...
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8005123 |
Wavelength tunable laser
A wavelength tunable laser includes a first facet including a high reflection coating film; a gain region disposed adjacent to the first facet, the gain region including two or more light emitting...
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8000372 |
Traveling-wave laser having a resonator including a direction-sensitive interferometer for establishing unidirectional circulation
A laser includes a traveling-wave ring-resonator in which one resonator mirror is a mirror of an interferometer arranged such that, when the interferometer is operated in an anti-resonant...
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8000370 |
Laser-induced optical wiring apparatus
A laser-induced optical wiring apparatus includes a substrate, first and second light-reflecting members provided on the substrate separately from each other, an optical waveguide provided on the...
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8000374 |
Surface gratings on VCSELs for polarization pinning
A polarization pinned vertical cavity surface emitting laser (VCSEL). A VCSEL designed to be polarization pinned includes an upper mirror. An active region is connected on the upper mirror. A lower...
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7995626 |
Athermal external cavity laser
Provided is an athermal external cavity laser (ECL), whose output optical power and output wavelength can be kept regular irrespective of temperature changes without using additional temperature...
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7988297 |
Non-rigidly coupled, overlapping, non-feedback, optical systems for spatial filtering of fourier transform optical patterns and image shape content characterization
Non-rigidly coupled, overlapping, non-feedback optical systems for spatial filtering of Fourier transform optical patterns and image shape characterization comprises a first optical subsystem that...
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7991036 |
Two-dimensional photonic crystal plane emission laser
A two-dimensional photonic crystal plane emission laser of the invention includes a two-dimensional photonic crystal which has a two-dimensional photonic crystal area and a light reflecting area,...
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7991024 |
External cavity wavelength tunable laser device and optical output module
In an external cavity wavelength tunable laser device including an external cavity (20) which includes a semiconductor optical amplifier (2) and performs laser oscillation operation by feeding back...
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7970024 |
Tunable diode laser system with external resonator
A tunable diode laser system with external resonator in Littrow or Littman configuration has an optical lattice on which the light beam from a laser diode is diffracted, a support element to hold...
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7970041 |
Semiconductor laser apparatus
A wavelength variable laser smaller in size than the conventional one can be achieved by arranging a gain chip, an etalon filter and a fifth reflective mirror on an AlN submount and longitudinally...
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7965757 |
Thermal distortion compensation for laser mirrors
A laser mirror assembly is disclosed with improved pointing stability. An elongated mirror includes a concave reflecting portion. A pair of elongated planar portions extend parallel to the concave...
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7961765 |
Narrow surface corrugated grating
Narrow surface corrugated gratings for integrated optical components and their method of manufacture. An embodiment includes a grating having a width narrower than a width of the waveguide on which...
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7957446 |
Semiconductor laser and method of making semiconductor laser
A semiconductor laser includes a first optical confinement layer, a plurality of first quantum wires and buried semiconductor regions disposed on a first area, a plurality of second quantum wires...
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7953135 |
Vertical cavity surface emitting laser diode (VCSEL) with enhanced emitting efficiency
A vertical cavity surface emitting laser diode (VCSEL) is disclosed, which reduces the light scattering by the step formed at the interface between the dielectric DBR and the semiconductor that...
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7949019 |
Wavelength tuning source based on a rotatable reflector
An apparatus and source arrangement for filtering an electromagnetic radiation can be provided which may include at least one spectral separating arrangement configured to physically separate one...
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7949030 |
High-power, phased-locked, laser arrays
High-power, phased-locked, laser arrays as disclosed herein utilize a system of optical elements that may be external to the laser oscillator array. Such an external optical system may achieve...
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7949031 |
Optoelectronic systems providing high-power high-brightness laser light based on field coupled arrays, bars and stacks of semicondutor diode lasers
A semiconductor diode laser having a broad vertical waveguide and a broad lateral waveguide is disclosed emitting laser-light in a single vertical mode and a single lateral mode narrow beam. The...
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7944958 |
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...
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7940829 |
Laser devices using gain media operating in out of phase mode
The basic gain medium enclosure for laser devices comprises two parallel lateral mirrors which geometrically define the extent of the gain medium enclosure and which allow the formation of lateral...
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7936804 |
Solid state laser and wavelength conversion laser
Two convex lenses (61, 62), each of which has a focal length âfâ, and a 90 degree polarization rotator (5) are interposed between solid-state laser elements (21, 22) of a symmetrical resonator hav...
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7936803 |
External cavity semiconductor laser
An external cavity semiconductor laser including a first and second input-output section disposed on a common end surface via a center axis, and a semiconductor laser device emitting a first and...
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7933305 |
Device for generating or detecting electromagnetic radiation, and fabrication method of the same
A device for generating or detecting electromagnetic radiation includes a substrate, a gain medium provided on the substrate, a plurality of reflectors for confining electromagnetic radiation at a...
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7929585 |
High brightness semiconductor laser diode arrays
Systems and methods for high brightness, improved phase characteristics laser diodes.
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7912106 |
Enhanced surface-emitting photonic device
A surface-emitting photonic device including a structure disposed therein to enhance a performance thereof. The structure includes a two dimensionally periodic second order distributed feedback...
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7903697 |
Method and system for tunable pulsed laser source
A tunable pulsed laser includes a seed source and an optical circulator. The optical circulator includes at least a first port coupled to the seed source, a second port, and a third port. The laser...
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7903696 |
High-power narrowed-linewidth fiber laser system
A high-power narrow-linewidth fiber laser system includes a seed oscillator with multiple resonant cavities and an amplifier stage. The seed oscillator includes a gain fiber, a pump source to...
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7903716 |
Surface emitting semiconductor laser having an interference filter
A surface emitting semiconductor laser includes a semiconductor chip (1), which emits radiation (12) and contains a first resonator mirror (3). A second resonator mirror (6) is arranged outside the...
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7899095 |
Laser lithography system with improved bandwidth control
A method and apparatus may comprise a seed laser, along with an amplifier laser amplifying the output of the seed laser. A bandwidth metrology module may provide a bandwidth measurement and a...
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7889776 |
High-power semiconductor laser
A light source includes a semiconductor laser diode and a narrow spectral and spatial bandwidth reflector in optical communication with respect to the semiconductor diode laser and aligned with the...
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7884383 |
Radiation emitting semiconductor chip
A radiation-emitting semiconductor chip (1) comprising a thin-film semiconductor body (2) which has a semiconductor layer sequence with an active region (4) suitable for generating radiation, and a...
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7885312 |
Surface emitting semiconductor laser element
A surface emitting laser is provided with an upper reflecting mirror having a photonic crystal structure with a point defect at the center, and emits a laser beam from the side of a lower...
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