Patents Assigned to Necsel Intellectual Property, Inc.
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Publication number: 20200266607Abstract: A semiconductor laser diode system may include a single longitudinal mode laser diode and a feedback system that monitors and controls the emission characteristics of the laser diode. The laser diode may include a gain medium and an optical feedback device. The feedback system may include a wavelength discriminator, an optical detector, a microprocessor, and a laser controller. Such a semiconductor laser diode system may be used to produce laser light having coherence length, wavelength precision, and wavelength stability that is equivalent to that of a gas laser. Accordingly, such a semiconductor laser diode system may be used in place of a traditional gas laser.Type: ApplicationFiled: February 20, 2020Publication date: August 20, 2020Applicant: NECSEL INTELLECTUAL PROPERTY, INC.Inventors: Boris Leonidovich Volodin, Vladimir Sinisa Ban, Sergei Dolgy
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Patent number: 10205295Abstract: Apparatus and methods for altering one or more spectral, spatial, or temporal characteristics of a light-emitting device are disclosed. Generally, such apparatus may include a volume Bragg grating (VBG) element that receives input light generated by a light-emitting device, conditions one or more characteristics of the input light, and causes the light-emitting device to generate light having the one or more characteristics of the conditioned light.Type: GrantFiled: September 13, 2017Date of Patent: February 12, 2019Assignee: NECSEL INTELLECTUAL PROPERTY, INC.Inventors: Boris Leonidovich Volodin, Vladimir Sinisa Ban
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Publication number: 20180034239Abstract: A semiconductor laser diode system may include a single longitudinal mode laser diode and a feedback system that monitors and controls the emission characteristics of the laser diode. The laser diode may include a gain medium and an optical feedback device. The feedback system may include a wavelength discriminator, an optical detector, a microprocessor, and a laser controller. Such a semiconductor laser diode system may be used to produce laser light having coherence length, wavelength precision, and wavelength stability that is equivalent to that of a gas laser. Accordingly, such a semiconductor laser diode system may be used in place of a traditional gas laser.Type: ApplicationFiled: September 28, 2017Publication date: February 1, 2018Applicant: NECSEL INTELLECTUAL PROPERTY, INC.Inventors: Boris Leonidovich Volodin, Vladimir Sinisa Ban, Sergei Dolgy
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Publication number: 20180013255Abstract: Apparatus and methods for altering one or more spectral, spatial, or temporal characteristics of a light-emitting device are disclosed. Generally, such apparatus may include a volume Bragg grating (VBG) element that receives input light generated by a light-emitting device, conditions one or more characteristics of the input light, and causes the light-emitting device to generate light having the one or more characteristics of the conditioned light.Type: ApplicationFiled: September 13, 2017Publication date: January 11, 2018Applicant: NECSEL INTELLECTUAL PROPERTY, INC.Inventors: Boris Leonidovich Volodin, Vladimir Sinisa Ban
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Patent number: 9793674Abstract: Apparatus and methods for altering one or more spectral, spatial, or temporal characteristics of a light-emitting device are disclosed. Generally, such apparatus may include a volume Bragg grating (VBG) element that receives input light generated by a light-emitting device, conditions one or more characteristics of the input light, and causes the light-emitting device to generate light having the one or more characteristics of the conditioned light.Type: GrantFiled: September 28, 2012Date of Patent: October 17, 2017Assignee: NECSEL INTELLECTUAL PROPERTY, INC.Inventors: Boris Leonidovich Volodin, Vladimir Sinisa Ban
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Patent number: 9748730Abstract: 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 mutually coherent operation of all the emitters in a laser array, and coherent combination of the output of all the lasers in the array into a single beam. Such an “external gain harness” system may include: an optical lens/mirror system that mixes the output of all the emitters in the array; a holographic optical element that combines the output of all the lasers in the array, and an output coupler that selects a single path for the combined output and also selects a common operating frequency for all the coupled gain regions.Type: GrantFiled: June 27, 2016Date of Patent: August 29, 2017Assignee: NECSEL INTELLECTUAL PROPERTY, INC.Inventor: Boris Leonidovich Volodin
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Patent number: 9470630Abstract: A sensor for detecting material degradation may include an optical fiber and a housing through which the optical fiber extends. An end cap may be affixed to an end of the housing. Light provided through the optical fiber may be reflected off of the end cap back through the optical fiber. The end cap may be made of a material of interest, and may be situated in an environment wherein the material of interest is present. A light source may provide input light through the optical fiber. A portion of the input light may be reflected off of the end cap. A light receptor may receive the reflected light via the optical fiber. A processing unit may be adapted to compare a measured intensity of the reflected light to a threshold, and to initiate an alarm condition if the measured intensity is below the threshold.Type: GrantFiled: September 25, 2015Date of Patent: October 18, 2016Assignee: NECSEL INTELLECTUAL PROPERTY, INC.Inventors: Vladimir Sinisa Ban, Boris Leonidovich Volodin, Grzegorz Drozdz, Uri Abrams
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Patent number: 7652815Abstract: Devices and methods are disclosed for realizing a high quality bulk domain grating structure utilizing mobile charges that are generated by means of photo-excitation in a substrate. An effect of light exposure (UV, visible, or a combination of wavelengths) is to generate photo-induced charges. The application of a voltage across the substrate combined with the application of light exposure causes a photo-induced current to flow through the substrate. The photo-induced charges (behaving like virtual electrode inside the material) and the photo-induced current result in both reduction of the coercive field required for domain inversion in the material and improve realization of the domain inversion pattern, which previously has not been possible at room temperature.Type: GrantFiled: February 20, 2008Date of Patent: January 26, 2010Assignee: Necsel Intellectual Property, Inc.Inventors: Lee Lisheng Huang, Simon John Field