Abstract: The invention may be embodied in other forms than those specifically disclosed herein without departing from itMulti-kW-class blue (400-495 nm) fiber-delivered lasers and module configurations. In embodiments, the lasers propagate laser beams having beam parameter products of <5 mm*mrad, which are used in materials processing, welding and pumping a Raman laser. In an embodiment the laser system is an integration of fiber-coupled modules, which are in turn made up of submodules. An embodiment has sub-modules having a plurality of lensed blue semiconductor gain chips with low reflectivity front facets. These are locked in wavelength with a wavelength spread of <1 nm by using volume Bragg gratings in an external cavity configuration. An embodiment has modules having of a plurality of submodules, which are combined through wavelength multiplexing with a bandwidth of <10 nm, followed by polarization beam combining. The output of each module is fiber-coupled into a low NA fiber.

Abstract: Methods and system to provide high power and brightness display and illumination systems and methods. In embodiments multi-wavelength laser beams in the wavelength range of 300 nm to 700 nm, including high power beams in these wavelengths having excellent beam qualities are provided and used. The three wavelengths can be primary colors, red, green and blue. Manufacturing and display systems, allowing the high-power white light generation directly from a single fiber laser source, such as theaters, sporting events, public events, private and home entertainment to name a few. The systems are configured for Photopic and Scotopic vision.

Abstract: There are provided methods and systems of destroying pathogens, such as virus, flu viruses and bacteria in spaces and surfaces, including confided spaces and surface, including air circulation systems, HVAC systems, and air handling systems in locations such as in offices, hospitals, airplanes, restaurants, cruise ships, hotels, using lasers, coherent light, electromagnetic energy, high intensity photons, including blue lasers and green lasers.

Abstract: The invention may be embodied in other forms than those specifically disclosed herein without departing from itMulti-kW-class blue (400-495 nm) fiber-delivered lasers and module configurations. In embodiments, the lasers propagate laser beams having beam parameter products of <5 mm*mrad, which are used in materials processing, welding and pumping a Raman laser. In an embodiment the laser system is an integration of fiber-coupled modules, which are in turn made up of submodules. An embodiment has sub-modules having a plurality of lensed blue semiconductor gain chips with low reflectivity front facets. These are locked in wavelength with a wavelength spread of <1 nm by using volume Bragg gratings in an external cavity configuration. An embodiment has modules having of a plurality of submodules, which are combined through wavelength multiplexing with a bandwidth of <10 nm, followed by polarization beam combining. The output of each module is fiber-coupled into a low NA fiber.

Abstract: The dual wavelength laser diode module is a module that consists of two or more wavelengths separated by 10 nm or more nm with the goal to produce an output beam of two different wavelength beams that are not-colinear. Providing to two separate lines in the focal point of a Fourier transform lens.

Abstract: There are provided high power, high brightness solid-state laser systems that maintain initial beam properties, including power levels, and do not have degradation of performance or beam quality, for at least 10,000 hours of operation. There are provided high power, high brightness solid-state laser systems containing Oxygen in their internal environments and which are free from siloxanes.

Abstract: Methods and system to provide high power and brightness display and illumination systems and methods. In embodiments multi-wavelength laser beams in the wavelength range of 300 nm to 700 nm, including high power beams in these wavelengths having excellent beam qualities are provided and used. The three wavelengths can be primary colors, red, green and blue. Manufacturing and display systems, allowing the high-power white light generation directly from a single fiber laser source, such as theaters, sporting events, public events, private and home entertainment to name a few. The systems are configured for Photopic and Scotopic vision.

Abstract: The invention may be embodied in other forms than those specifically disclosed herein without departing from itMulti-kW-class blue (400-495 nm) fiber-delivered lasers and module configurations. In embodiments, the lasers propagate laser beams having beam parameter products of <5 mm*mrad, which are used in materials processing, welding and pumping a Raman laser. In an embodiment the laser system is an integration of fiber-coupled modules, which are in turn made up of submodules. An embodiment has sub-modules having a plurality of lensed blue semiconductor gain chips with low reflectivity front facets. These are locked in wavelength with a wavelength spread of <1 nm by using volume Bragg gratings in an external cavity configuration. An embodiment has modules having of a plurality of submodules, which are combined through wavelength multiplexing with a bandwidth of <10 nm, followed by polarization beam combining. The output of each module is fiber-coupled into a low NA fiber.

Abstract: A prism includes a plurality of internal surfaces that reflect a beam incident on the prism.

Abstract: A method (and structure) of manufacturing high power laser diode array modules provides multi kilowatts of power for a semiconductor-based laser. The method also provides an array module having lower flow requirements. The array module provides a controlled, closed environment for the arrays to operate within, as well as a back reflection shield behind the arrays, which yields protection between the array and the array module housing. The structure may include two different array module configurations, the first being one stackable array of one hundred and fifty laser diode bar packages, which includes a high-flow, low-pressure drop heatsink providing a large plenum size for the array, reducing turbulent flow and lowering the required pressure for the array. The second configuration is a multi-stringed array configuration, providing multi kilowatts of power within a shoebox-sized footprint, incorporating the high-flow, low-pressure drop end caps, providing smaller flow restrictions.

Abstract: A method (and system) of coherently combining a plurality of diodes in an external cavity laser diode system includes adjusting the phase of the plurality of diodes to correct phase errors, wherein the adjusting the phase includes intercavity phase adjustment. The laser diode external cavity system includes an adjuster for intercavity phase adjustment.

Abstract: An index guide laser structure of the invention utilizes the combination of two spatial filter elements to limit or eliminate oscillation of high order lateral modes and beam steering. A preferred structure utilizes a frustrated and curved index guide to induce bend loss in higher order modes, and another preferred structure utilizes frustrating guides to introduce periodic interruptions of the refractive index outside the central guide to induce scattering loss in the higher order modes.

Abstract: A one-dimensional semiconductor laser array assembly typically comprising a one-dimensional semiconductor laser array, a heatsink upon which the laser array is bonded, and a lens assembly. The one-dimensional semiconductor laser array consists of a plurality of emitters with each emitter electrically connected in parallel to a power supply. The bonding agent, typically silver epoxy, must be of a uniform thickness so that the laser array is aligned properly upon the heatsink. The lens assembly is typically comprised of a refractive lens, typically of a bi-convex design, and a one-dimensional array of binary optical elements. The one-dimensional array of binary optical elements is designed such that each element has a front surface having a binary optic diffractive element etched thereon. The refractive lens and the one-dimensional array of binary optical elements are aligned and held in place by means of ears protruding from the heatsink.