Patents by Inventor Alex Behfar
Alex Behfar 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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Patent number: 10103517Abstract: Semiconductor photonic device surfaces are covered with a dielectric or a metal protective layer. The protective layer covers the entire device, including regions near facets at active regions, to prevent bare or unprotected semiconductor regions, thereby to form a very high reliability etched facet photonic device.Type: GrantFiled: June 4, 2014Date of Patent: October 16, 2018Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventor: Alex A. Behfar
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Patent number: 10103518Abstract: Semiconductor photonic device surfaces are covered with a dielectric or a metal protective layer. The protective layer covers the entire device, including regions near facets at active regions, to prevent bare or unprotected semiconductor regions, thereby to form a very high reliability etched facet photonic device.Type: GrantFiled: June 4, 2014Date of Patent: October 16, 2018Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventor: Alex A. Behfar
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Patent number: 10063028Abstract: Unidirectionality of lasers is enhanced by forming one or more etched gaps in the laser cavity. The gaps may be provided in any segment of a laser, such as any leg of a ring laser, or in one leg of a V-shaped laser. A Brewster angle facet at the distal end of a photonic device coupled to the laser reduces back-reflection into the laser cavity. A distributed Bragg reflector is used at the output of a laser to enhance the side-mode suppression ratio of the laser.Type: GrantFiled: October 30, 2014Date of Patent: August 28, 2018Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventors: Alex A Behfar, Alfred T Schremer, Jr., Cristian Stagarescu
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Patent number: 10044168Abstract: A laser chip having a substrate, an epitaxial structure on the substrate, the epitaxial structure including an active region and the active region generating light, a waveguide formed in the epitaxial structure extending in a first direction, the waveguide having a front etched facet and a back etched facet that define an edge-emitting laser, and a first recessed region formed in the epitaxial structure, the first recessed region being arranged at a distance from the waveguide and having an opening adjacent to the back etched facet, the first recessed region facilitating testing of an adjacent laser chip prior to singulation of the laser chip.Type: GrantFiled: December 1, 2017Date of Patent: August 7, 2018Assignee: MACON TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventors: Alex A. Behfar, Malcolm R. Green, Cristian Stagarescu
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Patent number: 10038298Abstract: A laser chip having a substrate, an epitaxial structure on the substrate, the epitaxial structure including an active region and the active region generating light, a waveguide formed in the epitaxial structure extending in a first direction, the waveguide having a front etched facet and a back etched facet that define an edge-emitting laser, and a first recessed region formed in the epitaxial structure, the first recessed region being arranged at a distance from the waveguide and having an opening adjacent to the back etched facet, the first recessed region facilitating testing of an adjacent laser chip prior to singulation of the laser chip.Type: GrantFiled: December 1, 2017Date of Patent: July 31, 2018Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventors: Alex A. Behfar, Malcolm R. Green, Cristian Stagarescu
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Publication number: 20180109070Abstract: A laser chip having a substrate, an epitaxial structure on the substrate, the epitaxial structure including an active region and the active region generating light, a waveguide formed in the epitaxial structure extending in a first direction, the waveguide having a front etched facet and a back etched facet that define an edge-emitting laser, and a first recessed region formed in the epitaxial structure, the first recessed region being arranged at a distance from the waveguide and having an opening adjacent to the back etched facet, the first recessed region facilitating testing of an adjacent laser chip prior to singulation of the laser chip.Type: ApplicationFiled: December 1, 2017Publication date: April 19, 2018Applicant: MACOM Technology Solutions Holdings, Inc.Inventors: Alex A. BEHFAR, Malcolm R. GREEN, Cristian STAGARESCU
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Publication number: 20180090907Abstract: A laser chip having a substrate, an epitaxial structure on the substrate, the epitaxial structure including an active region and the active region generating light, a waveguide formed in the epitaxial structure extending in a first direction, the waveguide having a front etched facet and a back etched facet that define an edge-emitting laser, and a first recessed region formed in the epitaxial structure, the first recessed region being arranged at a distance from the waveguide and having an opening adjacent to the back etched facet, the first recessed region facilitating testing of an adjacent laser chip prior to singulation of the laser chip.Type: ApplicationFiled: December 1, 2017Publication date: March 29, 2018Applicant: MACOM Technology Solutions Holdings, Inc.Inventors: Alex A. BEHFAR, Malcolm R. GREEN, Cristian STAGARESCU
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Patent number: 9893488Abstract: A laser chip having a substrate, an epitaxial structure on the substrate, the epitaxial structure including an active region and the active region generating light, a waveguide formed in the epitaxial structure extending in a first direction, the waveguide having a front etched facet and a back etched facet that define an edge-emitting laser, and a first recessed region formed in the epitaxial structure, the first recessed region being arranged at a distance from the waveguide and having an opening adjacent to the back etched facet, the first recessed region facilitating testing of an adjacent laser chip prior to singulation of the laser chip.Type: GrantFiled: January 13, 2015Date of Patent: February 13, 2018Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventors: Alex A. Behfar, Malcolm R. Green, Cristian Stagarescu
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Patent number: 9865993Abstract: A beam control structure for semiconductor lasers that allows modification of the shape of a beam allowing, for example, higher coupling into an optical fiber. The structure may comprise one or more of a tilted patio, a staircase, a reflective roof, and a reflective sidewall.Type: GrantFiled: May 20, 2016Date of Patent: January 9, 2018Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventors: Cristian Stagarescu, Alex A. Behfar, Norman Sze-keung Kwong
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Patent number: 9859687Abstract: A beam control structure for semiconductor lasers that allows modification of the shape of a beam allowing, for example, higher coupling into an optical fiber. The structure may comprise one or more of a tilted patio, a staircase, a reflective roof, and a reflective sidewall.Type: GrantFiled: May 20, 2016Date of Patent: January 2, 2018Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventors: Cristian Stagarescu, Alex A. Behfar, Norman Sze-keung Kwong
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Patent number: 9692202Abstract: A reflective surface is disclosed in conjunction with a semiconductor laser to shape a laser beam and modify a direction of the laser beam. The reflective surface may be formed on a structure disposed adjacent to a laser structure to allow high coupling of laser light to, for example, a silicon photonics chip or an optical fiber.Type: GrantFiled: November 7, 2014Date of Patent: June 27, 2017Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventors: Alex A. Behfar, Cristian Stagarescu, Norman Sze-keung Kwong
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Patent number: 9660419Abstract: Semiconductor photonic device surfaces are covered with a dielectric or a metal protective layer. The protective layer covers the entire device, including regions near facets at active regions, to prevent bare or unprotected semiconductor regions, thereby to form a very high reliability etched facet photonic device.Type: GrantFiled: June 4, 2014Date of Patent: May 23, 2017Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventor: Alex A. Behfar
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Patent number: 9653884Abstract: Semiconductor photonic device surfaces are covered with a dielectric or a metal protective layer. The protective layer covers the entire device, including regions near facets at active regions, to prevent bare or unprotected semiconductor regions, thereby to form a very high reliability etched facet photonic device.Type: GrantFiled: June 4, 2014Date of Patent: May 16, 2017Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS. INC.Inventor: Alex A. Behfar
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Publication number: 20160285239Abstract: A beam control structure for semiconductor lasers that allows modification of the shape of a beam allowing, for example, higher coupling into an optical fiber. The structure may comprise one or more of a tilted patio, a staircase, a reflective roof, and a reflective sidewall.Type: ApplicationFiled: May 20, 2016Publication date: September 29, 2016Applicant: M/A-COM Technology Solutions Holdings, Inc.Inventors: Cristian STAGARESCU, Alex A. BEHFAR, Norman Sze-keung KWONG
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Publication number: 20160268769Abstract: A beam control structure for semiconductor lasers that allows modification of the shape of a beam allowing, for example, higher coupling into an optical fiber. The structure may comprise one or more of a tilted patio, a staircase, a reflective roof, and a reflective sidewall.Type: ApplicationFiled: May 20, 2016Publication date: September 15, 2016Applicant: M/A-COM Technology Solutions Holdings, Inc.Inventors: Cristian STAGARESCU, Alex A. BEHFAR, Norman Sze-keung KWONG
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Patent number: 9401582Abstract: A beam control structure for semiconductor lasers that allows modification of the shape of a beam allowing, for example, higher coupling into an optical fiber. The structure may comprise one or more of a tilted patio, a staircase, a reflective roof, and a reflective sidewall.Type: GrantFiled: May 7, 2013Date of Patent: July 26, 2016Assignee: M/A-COM TECHNOLOGY SOLUTIONS HOLDINGS, INC.Inventors: Cristian Stagarescu, Alex A. Behfar, Norman Sze-keung Kwong
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Publication number: 20150124846Abstract: A reflective surface is disclosed in conjunction with a semiconductor laser to shape a laser beam and modify a direction of the laser beam. The reflective surface may be formed on a structure disposed adjacent to a laser structure to allow high coupling of laser light to, for example, a silicon photonics chip or an optical fiber.Type: ApplicationFiled: November 7, 2014Publication date: May 7, 2015Applicant: BinOptics CorporationInventors: Alex A. BEHFAR, Cristian STAGARESCU, Norman Sze-keung KWONG
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Publication number: 20150123695Abstract: A laser chip having a substrate, an epitaxial structure on the substrate, the epitaxial structure including an active region and the active region generating light, a waveguide formed in the epitaxial structure extending in a first direction, the waveguide having a front etched facet and a back etched facet that define an edge-emitting laser, and a first recessed region formed in the epitaxial structure, the first recessed region being arranged at a distance from the waveguide and having an opening adjacent to the back etched facet, the first recessed region facilitating testing of an adjacent laser chip prior to singulation of the laser chip.Type: ApplicationFiled: January 13, 2015Publication date: May 7, 2015Applicant: BinOptics CorporationInventors: Alex A. BEHFAR, Malcolm R. GREEN, Cristian STAGARESCU
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Publication number: 20150049777Abstract: Unidirectionality of lasers is enhanced by forming one or more etched gaps in the laser cavity. The gaps may be provided in any segment of a laser, such as any leg of a ring laser, or in one leg of a V-shaped laser. A Brewster angle facet at the distal end of a photonic device coupled to the laser reduces back-reflection into the laser cavity. A distributed Bragg reflector is used at the output of a laser to enhance the side-mode suppression ratio of the laser.Type: ApplicationFiled: October 30, 2014Publication date: February 19, 2015Applicant: BinOptics CorporationInventors: Alex A Behfar, Alfred T Schremer, JR., Cristian Stagarescu
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Patent number: 8934512Abstract: A laser chip having a substrate, an epitaxial structure on the substrate, the epitaxial structure including an active region and the active region generating light, a waveguide formed in the epitaxial structure extending in a first direction, the waveguide having a front etched facet and a back etched facet that define an edge-emitting laser, and a first recessed region formed in said epitaxial structure, the first recessed region being arranged at a distance from the waveguide and having an opening adjacent to the back etched facet, the first recessed region facilitating testing of an adjacent laser chip prior to singulation of the laser chip.Type: GrantFiled: November 30, 2012Date of Patent: January 13, 2015Assignee: BinOptics CorporationInventors: Alex A. Behfar, Malcolm R. Green, Cristian Stagarescu