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6829256 |
Fiber laser apparatus as well as optical multi/demultiplexer and image display apparatus therefor
Light from a first excitation light source is incident on one facet of a first optical fiber. A core is doped with a first rare earth substance. A resonant section induces light resonance in the...
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6826209 |
Ultrabroad-band variable-wavelength wavelength-multiplexed pulse waveform shaping device
An ultra-broadband, variable and multiple wavelength, waveform shaping apparatus is disclosed that excels with the ability to yield light pulses shaped in waveform, variable and multiple in...
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6822996 |
Mount having high mechanical stiffness and tunable external cavity laser assembly including same
A laser apparatus wherein all optical components are mounted on a unitary, rigid base. Natural frequency modes of the apparatus are above about 2 kHz. Tuning elements in the apparatus may have...
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6816323 |
Coupling with strong lens and weak lens on flexure
Modern optoelectronic components have very tight coupling tolerances. Small misalignments of a strong lens that occur during the alignment and bonding process seriously degrade optical coupling. A...
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6804284 |
Optical element holding and extraction device
An optical element holding and extraction device is provided. The device includes an optical element, an optical element holder having a tubular gripping portion and a tubular extraction portion...
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6804269 |
Laser beam delivery system with trepanning module
A laser beam delivery system for supplying a laser beam to a computer generated hologram which shapes and divides the supplied laser beam into a plurality of pseudo flat top laser beams. The...
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6798819 |
Optical pickup apparatus and method of manufacturing the same
A deflector deflects laser light emitted from a laser light emitting device. A lens driver moves an objective lens for conversing the laser light deflected by the deflector onto an optical...
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6795461 |
Optoelectric module
An optoelectric module includes a cylindrical ferrule defining an optical axis and having a first end constructed to receive an optical fiber aligned along the optical axis. A TO-can is positioned...
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6795459 |
Light frequency locker
A light frequency locker ( 10 ) able to accept a light beam ( 14 ) generated by a controllable light source ( 12 ) into a light diverter ( 16 ) and impart to it a transverse displacement...
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6792028 |
Method and laser beam directing system with rotatable diffraction gratings
A laser beam pointing and positioning system includes first and second rotatable diffraction gratings. Each grating deviates a laser beam by a predetermined angle of deviation. The relative...
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6788721 |
Photonic integrated circuit (PIC) and method for making same
A photonic integrated circuit including: at least one photonic component being suitable for operation with a plurality of photons and including an operational material having a bandgap energy close...
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6785319 |
Ultraviolet laser device
A narrow band ultraviolet laser device which can restrict a change in temperature gradient at light transmitting sections and maintain laser light at a high grade. To this end, the ultraviolet...
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6782034 |
Laser plumbing and leveling instrument which adjusting height of horizontal line
The present invention discloses a laser-plumbing leveler with adjustable height of the horizontal line, which comprises a laser emitting device, a laser line (plane) projecting optical system, and...
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6778579 |
Solid-state laser compensated for pumping-light astigmatism
In a solid-state laser in which a gain crystal is polished to have the Brewster angle or a solid-state laser comprising a dichroic concave mirror to which light enters at an incidence angle which...
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6778576 |
Encapsulated illumination unit
Illumination unit for an apparatus, particularly for the implementation of diaphanoscopic examinations at a human, animal or botanical examination subject, has a monolithic semiconductor laser...
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6768756 |
MEMS membrane with integral mirror/lens
An optical membrane device and method for making such a device are described. This membrane is notable in that it comprises an optically curved surface. In some embodiments, this curved optical...
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6768762 |
High repetition rate UV excimer laser
The invention relates to an High Repetition Rate UV Excimer Laser which includes a source of a laser beam and one or more windows which include magnesium fluoride. Another aspect of the invention...
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6765948 |
VCSEL assembly with edge-receiving optical devices
The present invention is directed to a method and system for conditioning the output signals of an array of surface-emitting lasers with an array of edge-receiving optical devices. Both the array...
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6760358 |
Line-narrowing optics module having improved mechanical performance
An apparatus for adjusting an orientation of an optical component mounted within a laser resonator with suppressed hysteresis includes an electromechanical device, a drive element, and a...
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6728289 |
Non-planar micro-optical structures
In one embodiment, the present invention provides a microlens having very small focal length. The present invention also provides a non-planar microstructure having a covering layer which is slowly...
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6711185 |
Polarization dependent out-coupling
An optical arrangement for direction dependent coupling out of light comprises a first and a second polarization converter each for converting the state of polarization of light received in a...
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6690688 |
Variable wavelength semiconductor laser and optical module
A wavelength-tunable semiconductor laser includes a semiconductor substrate; an optical waveguide on an upper surface of the semiconductor substrate; a front light reflection area including an...
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6687275 |
Resonating cavity system for broadly tunable multi-wavelength semiconductor lasers
A resonating cavity system of a tunable multi-wavelength semiconductor laser. The system has a laser, a collimating lens, a grating, a slit plate, and adjustable mirrors. The laser has two ends....
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6687283 |
Multi-beam source unit, adjusting method for same, positioning jig for same, assembling method for same, and image forming apparatus having same
A multi-beam source unit is disclosed wherein an arranged direction of light emitting points of a multi-beam laser diode relative to a horizontal scanning direction of a scanning optical system can...
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6683894 |
Tunable IR laser source for MALDI
A diode pumped solid state laser/OPO system widely tunable in mid infrared spectrum for infrared matrix assisted laser desorption/ionization (MALDI) mass spectroscopy is disclosed. Up to a few tens...
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6647038 |
Optoelectronic laser module
An optoelectronic laser module, in particular for dense wavelength division multiplex systems, is described. The laser module has a laser diode with an active region, an optical resonator...
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6647033 |
Optical parametric osicllators with improved beam quality
An optical parametric oscillator (OPO) having an optical pump, which generates a pump beam at a pump frequency greater than a desired signal frequency, a nonlinear optical medium oriented so that a...
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6631155 |
Multi-output laser-radiation source
A laser-radiation source includes a laser delivering an output beam, a lens, and an optical arrangement for dividing the output beam into a main beam and an auxiliary beam. The main and auxiliary...
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6606339 |
Auto-alignment of a high energy laser
An actuator for continuously aligning the primary mirror relative to the scraper the other resonator mirrors and the feedback mirror in a high power laser resonator, comprised of extended portions...
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6587481 |
Light emitting module and compatible optical pickup device adopting the same
A light emitting module packaging two light sources emitting two light beams of different wavelengths, and a compatible optical pickup device adopting the module are provided. The light emitting...
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6574262 |
High-power and high efficiency large area single-mode laser
The present invention is directed to a large area single-mode (LASM) laser system that provides a laser having a wider gain region and thus a higher power output without introducing the second...
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6539046 |
Wavemeter for gas discharge laser
An optical configuration to illuminate an etalon in a laser wavemeter with a minimum level of light intensity. The system includes optical components to direct a portion of the laser output beam...
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6535308 |
Method and apparatus for converting electrical signals and optical signals for bidirectional communication over a single optical fiber
Circuitry for controlling a diode optically coupled to an optical fiber suitable for transmitting digital light signals therethrough. The circuitry includes a temperature compensated driver when...
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6529532 |
Apparatus for frequency conversion of a laser
An apparatus for frequency conversion of a laser ( 1 ) in which one or more non-linear crystals ( 5, 6 ) are arranged in the laser beam ( 3 ), and the necessary power density is produced by an...
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6529542 |
Incoherent beam combined optical system utilizing a lens array
A method and apparatus is provided that enables an IBC system to operate over a large field angle. As a consequence, wide laser gain arrays can be used providing greater control over the output...
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6526089 |
Laser marker and method of light spot adjustment therefor
A laser marker includes a collimator lens converting laser light emitted from a broad area semiconductor laser into substantially parallel beams of light, a cylindrical concave lens permitting to...
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6522681 |
Laser for the generation of narrow band radiation
A laser is disclosed for generating radiation having narrow band width and high spectral purity. The laser comprises a cavity ( 10 ) containing a lasing medium ( 12 ) in between two reflective...
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6516009 |
Laser irradiating device and laser irradiating method
To restrain nonuniformity of irradiation when a linear laser beam is irradiated by scanning the beam, linear laser pulses are irradiated by scanning the pulses in an oblique direction by which...
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6501782 |
Compact laser apparatus
An apparatus for combining the outputs from multiple gain elements of an array within a single resonator cavity to achieve a predetermined spectral output or improved output power is provided. The...
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6483864 |
Partial reflective laser output device
A partial reflective laser output device comprising a partial reflective unit mounted on a laser output device (such as a vertical cavity emitting laser), the partial reflective unit allowing the...
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6473443 |
System and method for generating a grating image
A method and a system for generating grating images with an improved speed is disclosed. The system utilizes a coherent light source for providing a coherent beam L, an exposure control device for...
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6466603 |
Low loss resonator
A Low loss resonator is provided, which consist of two confocal parabolic reflectors and two flat reflectors forming a closed cavity capable of direct to the output window, stimulated emissions...
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6466593 |
Variable path length passive Q switch
A passive Q switch. The inventive Q switch includes a first wedge of material adapted to absorb electromagnetic energy. The first wedge has a first thickness on a first end thereof and a second...
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6442187 |
Laser device
The present invention relates to laser devices with increased cooling capability by means of largely extended cooling surfaces contacting the laser active medium. According to the present invention...
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6434177 |
Solid laser with one or several pump light sources
In a solid laser with one or several pump light sources whose radiation is fed into a laser crystal with a high light density, a laser crystal and an optical resonator are provided. Each pump light...
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6418152 |
Multi-amplifier, high power mode locked laser
A mode locked semiconductor laser that can generate relatively high-power output pulses. The semiconductor mode locked laser is formed from an array of optical amplifiers that are coupled to a...
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6411639 |
Semiconductor laser module with an external resonator including a band-pass filter and reflective element
A semiconductor laser module includes a semiconductor laser element, a lens system for condensing laser light onto an optical fiber, a band-pass filter for transmitting laser light having a...
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6404786 |
Laser beam generating apparatus
A laser beam in the ultraviolet region is generated at high power for along period. A green laser beam generated by a laser oscillator comes incident into a resonator from behind a first curved...
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6400745 |
Laser radiating optical system
A laser radiating optical system is composed of a laser diode and two mutually independent shaping optical systems. The laser diode emits a laser beam that has a Gaussian intensity distribution and...
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6400513 |
Optical beam coupling of multiple wavelengths into an output channel using spatial wavefront segmentation
An apparatus and method for coupling an array of light beams extending predominantly in one direction into an output port. The light beams are rearranged into a desired shape which extends more...
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