Patents by Inventor Alexey Komissarov
Alexey Komissarov 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: 20200153199Abstract: A method for manufacturing submounts for laser diodes includes the steps of providing a base configured with a ceramic carrier and a metal layer deposited upon the substrate. The method further includes using a pulsed laser operative to generate a plurality of pulses which are selectively trained at predetermined pattern on the metal layer's surface so as to ablate the desired regions of the metal layer to the desired depth. Thereafter the base is divided into a plurality of submounts each supporting a laser diode. The metal layer includes a silver sub-layer deposited upon the ceramic and having a thickness sufficient to effectively facilitate heat dissipation.Type: ApplicationFiled: August 15, 2016Publication date: May 14, 2020Applicant: IPG Photonics CorporationInventors: Alexander OVTCHINNIKOV, Igor BERISHEV, Alexey KOMISSAROV, Svletan TODOROV, Pavel TRUBENKO
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Patent number: 9935422Abstract: A multi-layer laser diode mount is configured with a submount made from thermo- and electro-conductive material. One of the opposite surfaces of the submount supports a laser diode. The other surface of the submount faces and is spaced from a heatsink. The submount and heatsink are configured with respective thermal expansion coefficients (“TEC”) which are different from one another. The opposite surfaces of the submount are electroplated with respective metal layers one of which is bonded to a soft solder layer. In one aspect of the disclosure, the mount is further configured with a spacer having the same TEC as that of the submount and bonded to the soft solder layer. A layer of hard solder bonds the spacer and heatsink to one another. In a further aspect of the disclosure, the electroplated metal layer in contact with the other surface of the submount is hundred- or more micron thick. The soft solder is directly bonded to the heatsink.Type: GrantFiled: September 30, 2016Date of Patent: April 3, 2018Assignee: IPG PHOTONICS CORPORATIONInventors: Alexey Komissarov, Dmitriy Miftakhutdinov, Pavel Trubenko, Igor Berishev, Nikolai Strougov
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Publication number: 20170018906Abstract: A multi-layer laser diode mount is configured with a submount made from thermo- and electro-conductive material. One of the opposite surfaces of the submount supports a laser diode. The other surface of the submount faces and is spaced from a heatsink. The submount and heatsink are configured with respective thermal expansion coefficients (“TEC”) which are different from one another. The opposite surfaces of the submount are electroplated with respective metal layers one of which is bonded to a soft solder layer. In one aspect of the disclosure, the mount is further configured with a spacer having the same TEC as that of the submount and bonded to the soft solder layer. A layer of hard solder bonds the spacer and heatsink to one another. In a further aspect of the disclosure, the electroplated metal layer in contact with the other surface of the submount is hundred- or more micron thick. The soft solder is directly bonded to the heatsink.Type: ApplicationFiled: September 30, 2016Publication date: January 19, 2017Inventors: Alexey KOMISSAROV, Dmitriy MIFTAKHUTDINOV, Pavel TRUBENKO, Igor BERISHEV, Nikolai STRUGOV
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Publication number: 20160352070Abstract: A method for manufacturing submounts for laser diodes includes the steps of providing a base configured with a ceramic carrier and a metal layer deposited upon the substrate. The method further includes using a pulsed laser operative to generate a plurality of pulses which are selectively trained at predetermined pattern on the metal layer's surface so as to ablate the desired regions of the metal layer to the desired depth. Thereafter the base is divided into a plurality of submounts each supporting a laser diode. The metal layer includes a silver sub-layer deposited upon the ceramic and having a thickness sufficient to effectively facilitate heat dissipation.Type: ApplicationFiled: August 15, 2016Publication date: December 1, 2016Applicant: IPG Photonics CorporationInventors: Alexander OVTCHINNIKOV, Igor BERISHEV, Alexey KOMISSAROV, Svletan TODOROV, Pavel TRUBENKO
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Patent number: 9440312Abstract: A method for manufacturing submounts for laser diodes includes the steps of providing a base configured with a ceramic carrier and a metal layer deposited upon the substrate. The method further includes using a pulsed laser operative to generate a plurality of pulses which are selectively trained at predetermined pattern on the metal layer's surface so as to ablate the desired regions of the metal layer to the desired depth. Thereafter the base is divided into a plurality of submounts each supporting a laser diode. The metal layer includes a silver sub-layer deposited upon the ceramic and having a thickness sufficient to effectively facilitate heat dissipation.Type: GrantFiled: May 29, 2013Date of Patent: September 13, 2016Assignee: IPG PHOTONICS CORPORATIONInventors: Alexander Ovtchinnikov, Igor Berishev, Alexey Komissarov, Svletan Todorov, Pavel Trubenko
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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: 20150124848Abstract: A module is configured with a housing enclosing a diode laser. Fast and slow axes collimators are located behind the rear facet of the laser, which along with a front facet, defines an intra-cavity cavity of the laser. The facets are partially transmissive to light and therefore emit laser light. A wavelength selective optical element is aligned with the collimators and configured to reflect light emitted through the back facet and processed by collimators back into the intra-cavity. As a result, the laser beam is emitted through the front facet at a wavelength locked on the desired wavelength of the optical element. A delivery fiber is mechanically coupled to the front facet of diode laser and configured to receive and guide the emitted laser beam along the path of light.Type: ApplicationFiled: October 23, 2013Publication date: May 7, 2015Applicant: IPG Photonics CorporationInventors: Alexander Ovtchinnikov, Alexey Komissarov, Igor Berishev, Dmitriy Miftakhutdinov
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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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Publication number: 20140353362Abstract: A method for manufacturing submounts for laser diodes includes the steps of providing a base configured with a ceramic carrier and a metal layer deposited upon the substrate. The method further includes using a pulsed laser operative to generate a plurality of pulses which are selectively trained at predetermined pattern on the metal layer's surface so as to ablate the desired regions of the metal layer to the desired depth. Thereafter the base is divided into a plurality of submounts each supporting a laser diode. The metal layer includes a silver sub-layer deposited upon the ceramic and having a thickness sufficient to effectively facilitate heat dissipation.Type: ApplicationFiled: May 29, 2013Publication date: December 4, 2014Applicant: IPG Photonics CorporationInventors: Alexander Ovtchinnikov, Igor Berishev, Alexey Komissarov, Svletan Todorov, Pavel Trubenko
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Patent number: 8828624Abstract: A system for recording multiple volume Bragg gratings (VBGs) in a photo thermo-refractive material is configured to implement a method which provides for irradiating the material by a coherent light through a phase mask. The system has a plurality of actuators operative to displace the light source, phase mask and material relative to one another so as to mass produce multiple units of the material each having one or more uniformly configured VBGs.Type: GrantFiled: August 3, 2009Date of Patent: September 9, 2014Assignee: IPG Photonics CorporationInventors: Valentin P Gapontsev, Alex Ovtchinnikov, Dmitry Starodubov, Alexey Komissarov
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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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Publication number: 20140110843Abstract: A semiconductor unit includes a submount and a chip coupled to the submount. The submount is configured with a base and a plurality of layers between the base and the chip. One of the layers, a heat-spreading electro-conducting sliver (“Ag”) layer, is deposited atop the base. The thickness of the Ag layer is selected so that a cumulative coefficient of thermal expansion of the submount substantially matches that one of the chip. Coupled to the active zone of the chip is a stress-dumping layer made from elastic malleable materials.Type: ApplicationFiled: December 30, 2013Publication date: April 24, 2014Applicant: IIPG Photonics CorporationInventors: Alexander Ovtchinnikov, Alexey Komissarov, Igor Berishev, Svetlan Todorov
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Patent number: 8615029Abstract: A laser diode is configured with a substrate delimited by opposite AR and HR reflectors and a gain region. The gain region bridges the portions of the respective AR and HR reflectors and is configured with a main resonant cavity and at least one side resonant cavity. The main resonant cavity spans between the portions of the respective reflectors, and at least one additional resonant cavity extends adjacent to the main resonator cavity. The gain region is configured so that stimulated emission is generated only in the main resonant cavity. Accordingly, the laser diode is operative to radiate a high-power output beam emitted through the portion of the AR reflector which is dimensioned to shape the output beam with the desired near-field.Type: GrantFiled: December 30, 2009Date of Patent: December 24, 2013Assignee: IPG Photonics CorporationInventors: Alexander Ovtchinnikov, Alexey Komissarov, Valentin P. Gapontsev, Pavel Trubenko
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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: 20110158274Abstract: A laser diode is configured with a substrate delimited by opposite AR and HR reflectors and a gain region. The gain region bridges the portions of the respective AR and HR reflectors and is configured with a main resonant cavity and at least one side resonant cavity. The main resonant cavity spans between the portions of the respective reflectors, and at least one additional resonant cavity extends adjacent to the main resonator cavity. The gain region is configured so that stimulated emission is generated only the main resonant cavity. Accordingly, the laser diode is operative to radiate a high-power output beam emitted through the portion of the AR reflector which is dimensioned to shape the output beam with the desired near-field.Type: ApplicationFiled: December 30, 2009Publication date: June 30, 2011Applicant: IPG Photonics CorporationInventors: Valentin P. Gapontsev, Alexander Ovtchinnikov, Alexey Komissarov, Pavel Trubenko
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Publication number: 20110027720Abstract: A system for recording multiple volume Bragg gratings (VBGs) in a photo thermo-refractive material is configured to implement a method which provides for irradiating the material by a coherent light through a phase mask. The system has a plurality of actuators operative to displace the light source, phase mask and material relative to one another so as to mass produce multiple units of the material each having one or more uniformly configured VBGs.Type: ApplicationFiled: August 3, 2009Publication date: February 3, 2011Applicant: IPG Photonics CorporationInventors: Alex Ovtchinnikov, Dmitry Starodubov, Alexey Komissarov, Valentin P. Gapontsev
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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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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: 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