Patents by Inventor Vadim Chuyanov
Vadim Chuyanov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220190551Abstract: A pigtailed diode laser module is configured with a case housing a plurality of multimode chips which are arranged in at least one row and output respective beams in one direction. Each output beam is collimated in upstream fast and downstream slow axes collimators which are spaced from one another in the one direction. The collimated output beams are incident on respective mirrors redirecting the incident output beams in another direction which is transverse to the one direction. Propagating further one above another, the output beams constitute a combined beam which diverges in the slow axis while propagating towards at least one lens which focuses the combined beam in the slow axis in the focal plane thereof. The output fiber is mounted to the case such that its core end is located coplanar with the smallest cross-section of the focused combined beam spaced downstream from the focal plane at a predetermined distance.Type: ApplicationFiled: March 26, 2020Publication date: June 16, 2022Applicant: IPG PHOTONICS CORPORATIONInventors: Vadim CHUYANOV, Dmitriy MIFTAKHUTDINOV
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Patent number: 9110246Abstract: An improved high power spatial filter, system and method. In the system, an optical fiber is disposed inside a ferrule channel structure, and the channel structure is aligned with a focusing lens system. The end of the fiber is at a distance D from the channel opening that faces the focusing lens system, and D is determined by the system's numeric aperture factor and the cladding thickness of the optical fiber.Type: GrantFiled: May 29, 2013Date of Patent: August 18, 2015Assignee: IPG PHOTONICS CORPORATIONInventors: Igor Berishev, Vadim Chuyanov, Alexey Komissarov, Nikolai Strougov
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Publication number: 20150007615Abstract: A twin fiber laser arrangement is configured with active and passive fibers supporting respective signal and pump lights and a reflective coating surrounding the fibers along a section of the arrangement. The passive fiber has regions covered by respective protective layer and coating-free regions alternating with the layer covered regions, wherein the reflective coating is configured to overlap the protective layer which shields the end of the reflective coating from high power pump light.Type: ApplicationFiled: July 2, 2013Publication date: January 8, 2015Inventors: Valentin Gapontsev, Igor Berishev, Nikolai Strougov, Vadim Chuyanov
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Publication number: 20140355638Abstract: An improved high power special filter, system and method. In the system, an optical fiber is disposed inside a ferule channel structure, and the channel structure is aligned with a focusing lens system. The end of the fiber is at a distance D from the channel opening that faces the focusing lens system, and D is determined by the system's numeric aperture factor and the cladding thickness of the optical fiber.Type: ApplicationFiled: May 29, 2013Publication date: December 4, 2014Applicant: IPG Photonics CorporationInventors: Igor Berishev, Vadim Chuyanov, Alexey Komissarov, Nikolai Strougov
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Patent number: 8711894Abstract: A high-brightness laser module is configured with a beam-compression unit capable of reducing a diameter of parallel light beams which are emitted by respective spaced apart individual laser diodes. The module further has an objective lens configured to losslessly launch the light with the reduced diameter into a fiber.Type: GrantFiled: May 21, 2010Date of Patent: April 29, 2014Assignee: IPG Photonics CorporationInventors: Vadim Chuyanov, Alexey Komissarov
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Patent number: 8416830Abstract: A gain module, operative to output a laser light coupled into a laser system, is structured with at least one gain element radiating the laser light and a spectrally-selective element. The spectrally-selective element includes a slab of photosensitive material and two parallel feedback and isolating Bragg mirrors recorded in the slab. The feedback Bragg mirror is operative to provide a wavelength-dependent feedback so as to cause the laser chip to generate the laser light at the resonance wavelength of the feedback Bragg mirror. The isolating Bragg mirror is automatically adjusted to retroreflect a backreflected signal light, which is generated by the laser system at a signal wavelength different from the resonance wavelength, upon positioning the feedback mirror orthogonally to the laser light.Type: GrantFiled: December 3, 2008Date of Patent: April 9, 2013Assignee: IPG Photonics CorporationInventors: Alex Ovtchinnikov, Alexey Komissarov, Nikolai Strougov, Vadim Chuyanov
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Publication number: 20110292499Abstract: A twin fiber laser arrangement is configured with active and passive fibers supporting respective signal and pump lights and a reflective coating surrounding the fibers along a section of the arrangement. The passive fiber has regions covered by respective protective layer and coating-free regions alternating with the layer covered regions, wherein the reflective coating is configured to overlap the protective layer which shields the end of the reflective coating from high power pump light.Type: ApplicationFiled: May 27, 2010Publication date: December 1, 2011Applicant: IPG Photonics CorporationInventors: Valentin Gapontsev, Igor Berishev, Nikolai Strougov, Vadim Chuyanov
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Publication number: 20100226405Abstract: A high-brightness laser module is configured with a beam-compression unit capable of reducing a diameter of parallel light beams which are emitted by respective spaced apart individual laser diodes. The module further has an objective lens configured to losslessly launch the light with the reduced diameter into a fiber.Type: ApplicationFiled: May 21, 2010Publication date: September 9, 2010Inventors: Vadim Chuyanov, Alexey Komissarov
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Patent number: 7773655Abstract: A high-brightness laser module is configured with a beam-compression unit capable of reducing a diameter of parallel light beams which are emitted by respective spaced apart individual laser diodes. The module further has an objective lens configured to losslessly launch the light with the reduced diameter into a fiber.Type: GrantFiled: June 26, 2008Date of Patent: August 10, 2010Inventors: Vadim Chuyanov, Alexey Komissarov
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Patent number: 7764723Abstract: A powerful high-brightness laser pump modules is configured with a plurality of spaced laser diodes each generating a light beam at a pump wavelength, and respective groups of optical components guiding the light beams along parallel light paths. The groups of the optical components each include a lens assembly and a bending mirror configured to couple the beam light into an output fiber which is common to all groups of the optical component. At least one optical component of each group is provided with a dielectric layer capable of preventing propagation of a backreflected light toward laser diodes at a wavelength different from the pump wavelength.Type: GrantFiled: June 26, 2008Date of Patent: July 27, 2010Assignee: IPG Photonics CorporationInventors: Alex Ovtchinnikov, Igor Berishev, Nikolai Strougov, Vadim Chuyanov
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Publication number: 20100135350Abstract: A gain module, operative to output a laser light coupled into a laser system, is structured with at least one gain element radiating the laser light and a spectrally-selective element. The spectrally-selective element includes a slab of photosensitive material and two parallel feedback and isolating Bragg mirrors recorded in the slab. The feedback Bragg mirror is operative to provide a wavelength-dependent feedback so as to cause the laser chip to generate the laser light at the resonance wavelength of the feedback Bragg mirror. The isolating Bragg mirror is automatically adjusted to retroreflect a backreflected signal light, which is generated by the laser system at a signal wavelength different from the resonance wavelength, upon positioning the feedback mirror orthogonally to the laser light.Type: ApplicationFiled: December 3, 2008Publication date: June 3, 2010Inventors: Alex Ovtchinnikov, Alexey Komissarov, Nikolai Strougov, Vadim Chuyanov
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Publication number: 20090323736Abstract: A powerful high-brightness laser pump modules is configured with a plurality of spaced laser diodes each generating a light beam at a pump wavelength, and respective groups of optical components guiding the light beams along parallel light paths. The groups of the optical components each include a lens assembly and a bending mirror configured to couple the beam light into an output fiber which is common to all groups of the optical component. At least one optical component of each group is provided with a dielectric layer capable of preventing propagation of a backreflected light toward laser diodes at a wavelength different from the pump wavelength.Type: ApplicationFiled: June 26, 2008Publication date: December 31, 2009Inventors: Alex Ovtchinnikov, Igor Berishev, Nikolai Strougov, Vadim Chuyanov
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Publication number: 20090323752Abstract: A high-brightness laser module is configured with a beam-compression unit capable of reducing a diameter of parallel light beams which are emitted by respective spaced apart individual laser diodes. The module further has an objective lens configured to losslessly launch the light with the reduced diameter into a fiber.Type: ApplicationFiled: June 26, 2008Publication date: December 31, 2009Inventors: Vadim Chuyanov, Alexey Komissarov
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Patent number: 7034641Abstract: A substrate structure useful for photonics modules comprises a high-thermal-conductivity (e.g., greater than 20 W/m°K) substrate body with a low-thermal-conductivity (e.g., less than 5 W/m°K) dielectric layer overlying at least a portion of the substrate body. Patterned metal layers for electrical circuit connections can be located on the dielectric layer, on the substrate body (under the dielectric layer, on regions of exposed substrate body, or both), or on both. Where the laser is driven at high frequencies (e.g., 2.5 Gbits/sec), the dielectric layer material and thickness can be chosen to provide desired RF behavior. For example, the electrodes and dielectric layer can be configured to provide a transmission line with the desired impedance. Further, where it is desired to solder a component to the substrate, a heater resistor can be formed on the dielectric layer, thereby facilitating soldering the component.Type: GrantFiled: November 27, 2002Date of Patent: April 25, 2006Assignee: K2 Optronics, Inc.Inventors: Robert A. Clarke, Frans Kusnadi, Richard D. Bjorn, John Cameron Major, Zequin Mei, Vadim Chuyanov