Luminit LLC

Ran Science & Technology, LLC

Russell Kurtz

Fedor Dimov

Jun Ai

Alkan Gulses

Mark Joseph Bennahmias

Xiaowei Xia

Chris Griffo

Emmanuel Gorce

Selim Shahriar

This application discloses an apparatus for minimizing the optical effects of transmissive domes, and for using the dome surfaces to correct for other optical aberrations and distortions. Herein, the inner surface of the dome is designed to correct for unwanted optical effects of the outer surface of the dome and may also be used to correct for other anticipated effects in the overall optical system.

Reducing the optical effects of domes

The Compound Eye Laser Illumination Seeker (CELIS) is a tracking system used to guide items to point at a laser-illuminated target, with the illumination being either pulsed or modulated at either a specific rate or within a range of rates. The CELIS, comprising a multiaperture compound receiver optics (MACRO) to collect the signal, a set of light guides to combine the received light into light representing individual angular sectors and redirect it to detectors whose output represents the illumination signal in that quadrant, a spectral filter, an angle filter, the set of detectors, and processing electronics. The output is an electronic signal indicating the angular difference between the pointing direction of the signal and the pointing direction of the tracking device.

Compound eye laser tracking device

A plug-and-play fiber-coupled nonlinear optical quantum wave-converter, optimized for quantum communications, comprises a commercial periodically-poled, waveguide-based, nonlinear optical chip, coupled with a pair of substrate-guided holographic (SGH) wavelength division multiplexers (WDM) and a pair of SGH filters; it offers bidirectional difference frequency conversion (DFG) and sum frequency conversion (SFG) simultaneously in a single packaged device.

Quantum wave-converter

The Compound Eye Laser Illumination Seeker is a tracking system used to guide items to point at a laser-illuminated target, with the illumination being either pulsed or modulated at either a specific rate or within a range of rates. The device comprises a multiaperture compound receiver optics to collect the signal, a set of light guides to combine the received light into light representing individual angular sectors and redirect it to detectors whose output represents the illumination signal in that quadrant, a spectral filter, an angle filter, the set of detectors, and processing electronics. The output is an electronic signal indicating the angular difference between the pointing direction of the signal and the pointing direction of the tracking device.

A laser system containing an etalon to reduce the spectral bandwidth and for tuning, with cavity dumping to generate the short pulses is described. The resulting system is stable and not overly complicated. The combination of cavity dumping with an intracavity etalon enables the invention to produce a string of short pulses, each of which has a very narrow spectral bandwidth. Tuning the wavelength over a spectral range that is very small, but much larger than the laser's spectral bandwidth, enables the invention to use dual-wavelength lidar, DIAL, differential spectroscopy, or a combination of these methods to measure the concentration of the desired chemicals with excellent accuracy.

Spectrally pure short-pulse laser

The subject invention includes a semiconductor laser with the laser having a DBR mirror on a substrate, a quantum well on the DBR mirror, and an interior CGH with a back propagated output for emitting a large sized Gaussian and encircling high energy. The DBR mirror has a plurality of GaAs/AlGaAs layers, while the quantum well is composed of AlGaAs/InGaAs. The CGH is composed of AlGaAs.

Laser diode enhancement device

A graphene composite coating on a metal surface with excellent corrosion resistance by electrophoretic or electrolytic deposition has been obtained. The composite coating was shown to significantly increase the resistance of the metal surface to electrochemical degradation. The graphene coating significantly reduces cathodic current, which is an indicator of the rate of corrosion at the interface between the cathodic material and the anodic material.

Graphene anti-corrosion coating and method of application thereof

A method and system of collecting radiation with an array of lenses or a diffractive optical element are disclosed, the method includes: modifying angles of convergence and/or divergence, and a direction of propagation, with a diffractive element, and coupling the radiation into optical fibers, without separating the radiation into separate bands. The system includes an array of lenses or a diffractive optical element; a broadband holographic optical element, and at least one optical fiber, wherein the array of lenses or the diffractive optical element is configured to collect light and direct the light to the broadband holographic optical element, and wherein the broadband holographic optical element is configured to partially collimate and/or redirect light into the at least one optical fiber, and wherein the at least one optical fiber is configured to transmit the radiation away from the array of lenses or the diffractive optical element.

Holographic solar coupler

A nondestructive evaluation system, consisting of a metrology device and a directable acoustic transducer, is used to measure the variation of the surface when stress is applied. The directable acoustic transducer selects the location of the applied stress. The difference between the surface during stress application and in the absence of stress detects both surface and buried defects along the location of the stress. By scanning the beam from the acoustic transducer, the location of the stress can be adjusted, enabling the system to locate the detected defect in three dimensions.

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Torrance, CA, United States of America

Russell Kurtz