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7609919 |
Coupling-enhanced surface etched gratings
The invention describes the method and apparatus for enhancement of coupling efficiency in effective-ridge laterally-coupled surface-etched grating waveguide structures, where a slab waveguide has...
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7599404 |
Composite optic fibre for laser with pump and laser wave confinement, applications to lasers
A composite optic fibre for laser includes a core surrounded with a pump guiding sheath in contact with the core, sheath being a photonic structure formed by a substantially regular matrix assembly...
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7577177 |
Multi-path laser system
A laser chamber is provided that increases power, initiation, and discharge efficiency over single chamber lasers by providing a multi-fold laser chamber, protrusions, discharge segmentation and...
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7561611 |
Extended-lifetime elements for excimer lasers
The invention is directed to elements used in high power laser lithographic systems operating at below 250 nm, and in particular to elements that have a coating of selected materials to extend...
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7561605 |
Extreme chirped/stretched pulsed amplification and laser
Methods, devices and systems for generating ultrashort optical linear chirped pulses with very high power by amplifying the pulses so that their temporal duration is longer than the storage time of...
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7548575 |
Self-seeding and phase-locking of an array of lasers
An apparatus and method for combining a plurality of laser beams to form a single output beam comprising employing a plurality of lasers and optically connecting an image rotator and recoupler to...
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7548569 |
High-power optically end-pumped external-cavity semiconductor laser
A high-power optically end-pumped external-cavity semiconductor laser is provided having a laser chip including an active layer and a distributed Bragg reflector (DBR) for emitting light of a...
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7535935 |
Spectroscopic catheter system with widely tunable source and method of operation
A laser system for a spectroscopic catheter system uses multiple semiconductor gain media having gain peaks at different wavelengths. The output from the gain media is preferably coupled into...
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7530832 |
Laser light source device, display device, scanning type display device, and projector
To provide a laser light source unit, a display device, a scanning display device and a projector, in each of which, when a laser is taken out of the chassis or the like, a laser thereof is...
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7520679 |
Optical device package with turning mirror and alignment post
An optoelectronic package or sub-assembly includes an edge-emitting laser and a reflector that directs a beam from the laser through a sub-mount. The sub-mount contains passive or active circuit...
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7515346 |
High power and high brightness diode-laser array for material processing applications
Arrangements for combination and fast-axis alignment of fast-axes of diode-laser beams are disclosed. Alignment arrangements include providing each diode-laser with a corresponding alignable...
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7440643 |
Variable light controlling device and variable light controlling method
A variable light controlling device comprising a substrate, an optical waveguide disposed on the substrate, a first heater and a second heater to change the optical waveguide's temperature is...
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7403282 |
Coherently controlled nonlinear Raman spectroscopy and microscopy
A method and system are presented for producing an output coherent anti-stokes Raman scattering (CARS) signal of a medium. The method comprises generation of a unitary optical excitation pulse that...
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7277460 |
Generation of optical filaments by use of localized optical inhomogeneities
Optical filaments are formed controllably in a gaseous medium such as air. A phase plate introducing a phase discontinuity or other localized optical inhomogeneity is introduced into the path of...
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7203219 |
Transmitter optical sub assembly, for instance for high speed optical transceivers
A transmitter optical sub assembly includes a laser source having associated therewith a laser driver and a package for housing the laser source ( 10 ) and the laser driver. The package includes...
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7155834 |
Laser alignment method and apparatus
Laser alignment methods and apparatus are disclosed whereby pipe and similar materials may be aligned. The methods and apparatus are adapted to be utilized on the end of pipe or other material and...
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7134212 |
Laser level
A laser level disposable on a reference surface includes a housing, a pendulum pivotably connected to the housing, a first laser diode disposed on the pendulum for emitting a first laser beam along...
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7116697 |
Laser level
The present invention relates to laser leveling device suitable for construction. The present invention uses a standard low cost laser diode module as the laser source and optical system. A novel...
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7075954 |
Intelligent wavelength division multiplexing systems based on arrays of wavelength tunable lasers and wavelength tunable resonant photodetectors
A wavelength division multiplexing system based on arrays of wavelength tunable lasers and wavelength tunable resonant photodetectors is disclosed. The system allows self-adjusting of the resonance...
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7065106 |
Transmitter optical sub-assembly with eye safety
A transmitter optical subassembly includes an optical emitter and a fiber receptacle within which an optical fiber is received. An optical limiting element is positioned between the optical emitter...
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7050469 |
Generation of optical filaments by use of phase plate
Optical filaments are formed controllably in a gaseous medium such as air. A phase plate introducing a phase singularity is introduced into the path of the laser beam that forms the optical...
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7046715 |
Method for suppressing energy spikes of a partially-coherent beam using triangular end-regions
Accordingly, a method of suppressing energy spikes is provided comprising projecting a laser beam through a mask having a slit pattern comprising a corner region with edges, and a blocking feature...
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7035308 |
Method and system for countering laser technology
Described herein is a method and system for providing a countermeasure against laser detection systems using nanocomponent material that is tailored to cloak or obscure a target from detection by...
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7035301 |
Packaging for semiconductor laser device and method for producing the same
In a semiconductor laser device, a flange ( 33 ) of a cap ( 32 ) is provided with straight-line cut-off portions ( 34 ) that are the same in number as notches ( 36, 37 ) of a stem ( 35 ). With the...
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7031367 |
Laser level
A laser level disposable on a reference surface includes a housing, a pendulum pivotably connected to the housing, a first laser diode disposed on the pendulum for emitting a first laser beam along...
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6983005 |
Holographic laser and optical pickup
It is an object of the invention to provide a holographic laser and an optical pickup, with which it is possible to read from and write to a plurality of types of optical disks with different read...
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6954475 |
Semiconductor laser device
There is provided a semiconductor laser device capable of maintaining a good luminous characteristic under severe environment. A cap 4 in an approximate portal shape having lateral apertures 41 ...
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6944204 |
Laser-induced breakdown spectroscopy with second harmonic guide light
A laser system comprising a laser for providing a laser beam, a non-linear optical crystal in the laser beam path creating a second order light, a laser beam expander in the beam path after the...
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6944203 |
Multimode light generating module, semiconductor laser apparatus, and optical fiber amplifier
A multimode light generating module comprises an optical cavity and a light-receiving element. The optical cavity is constituted by a semiconductor optical amplification element, and an optical...
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6928100 |
Laser device and lens position adjustment method in the laser device
A recess 14 is provided in a lens accommodating portion 13 of a laser holder 10 for holding a collimator lens C, whereby positional accuracy and adhesion strength of the lens and a light...
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6920170 |
Orthogonally excited-type laser oscillator
Plate springs as coupling members can absorb deformation of an oscillator case due to heat and do not transmit the deformation to two optical bases constituting an optical resonator, and it is...
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6920162 |
Electronic or opto-electronic packages
An electronic device such as a laser diode is mounted on a heatsink assembly within a TO-can package. The heatsink assembly is mounted in heat exchange relation with a heat pipe by being on or...
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6909735 |
System and method for generating and controlling multiple independently steerable laser beam for material processing
A laser process system with multiple, independently steerable laser beamlets and including a laser and beam shaper for generating a shaped source beam, a splitter stage for generating a plurality...
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6901101 |
Optical sensor for measuring physical and material properties
An optical medium having a cavity that defines a variable gap is provided. The optical medium is used in an optical sensor, laser, and variable frequency resonator, by way of example. The cavity is...
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6901089 |
Laser instrument
The invention relates to instruments which include radiometers and which generate a laser beam for striking a target at a distance to assist in aiming the instrument at a selected area of a target....
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6895027 |
CTE compensation of semiconductor laser bars
A laser bar is soldered to a conventional microchannel copper heat sink whose coefficient of thermal expansion (CTE) is locally modified in the area where the laser bar is soldered to better match...
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6879620 |
Laser bar locking apparatus
A semiconductor laser chip has an active layer, an allover electrode forming a lower face of the laser chip and a light emitting end surface of the laser chip. A Si thin film is formed on the light...
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6868103 |
Single photon source based on transmitters with selectively distributed frequencies
Apparatus for single photon source based on emitters with frequencies distributed in a chosen manner. In one embodiment, the apparatus comprises an opto-electronic component capable or emitting...
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6834071 |
Spot size converter, semiconductor laser module and optical fiber laser device
A spot size converter comprising an incident area of a first size, an exit area of a second size different from the first size, and side walls defining a light guide, wherein at least a part of...
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6831933 |
Modular approach to the next generation, short wavelength, laser-like light sources
A system and method for implementing a next generation laser-like light source with Free Electron Lasers (FELs) are provided whereby the construction of a Free Electron Laser (FEL) is customized...
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6825503 |
Lens cap for semiconductor laser package
A lens cap ( 40 ) in accordance with a preferred embodiment of the present invention for a semiconductor laser package (not shown) includes an optical element ( 31 ) made of a plastic material and...
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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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6821798 |
Semiconductor optical device and method for fabricating same
A monolithic semiconductor optical device with excellent temperature and modulation characteristics and associated method of manufacturing whereby the device has a semiconductor substrate, a...
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6816537 |
Device having touch sensitivity functionality
The invention relates to a device having touch sensitivity functionality, comprising a surface ( 2 ), touch-sensitive means ( 5 ) for detecting the presence of a touch input member ( 6 ) being in...
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6816536 |
Method and apparatus for in situ protection of sensitive optical materials
A method and apparatus are provided for in situ protection of sensitive optical materials from alternation or damage due to exposure to trace atmospheric components, during shipping, storage or...
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6807219 |
Laser housing having integral mounts and method of manufacturing same
A housing adapted to position, support, and facilitate aligning various components, including an optical path assembly, of a laser. In a preferred embodiment, the housing is constructed from a...
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6807218 |
Laser module and optical subassembly
A laser module includes an alignment plate having a template plate having a laser diode aperture and a photodiode aperture. A weld plate and a reflector are coupled to the template plate. The...
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6795482 |
Laser beam optics in a robot link
The laser beam optics for a robot link, wherein a first beam path of a first working laser beam is arranged on the longitudinal axis of the robot link, the first beam path is deflected at an end...
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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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6785315 |
Mobile tactical high energy laser weapon system and method for generating a high energy laser beam
A laser weapon system using a high energy deuterium fluoride (DF) or hydrogen fluoride (HF) laser, for which all necessary reactants and other materials are carried on an easily movable vehicle....
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