Patents by Inventor Dahv Kliner
Dahv Kliner 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: 10784645Abstract: Some embodiments may include a fiber laser, comprising: a variably wound optical fiber, wherein the variably wound optical fiber includes: a first length arranged in a plurality of first loops with a first separation distance between successive ones of the first loops; and a second length arranged in a plurality of second loops with a second separation distance between successive ones of the second loops; wherein the first separation distance between successive ones of the first loops is greater than the second separation distance between successive ones of the second loops; and packaging to remove heat generated by the optical fiber of the fiber laser during operation of the fiber laser, wherein the variably wound optical fiber is fixably mounted to a surface of a heat conductor of the packaging.Type: GrantFiled: March 11, 2019Date of Patent: September 22, 2020Assignee: NLIGHT, INC.Inventors: Aaron Ludwig Hodges, Nicolas Meacham, Dahv Kliner, Mitchell Ryan Reynolds
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Publication number: 20190280449Abstract: Some embodiments may include a fiber laser, comprising: a variably wound optical fiber, wherein the variably wound optical fiber includes: a first length arranged in a plurality of first loops with a first separation distance between successive ones of the first loops; and a second length arranged in a plurality of second loops with a second separation distance between successive ones of the second loops; wherein the first separation distance between successive ones of the first loops is greater than the second separation distance between successive ones of the second loops; and packaging to remove heat generated by the optical fiber of the fiber laser during operation of the fiber laser, wherein the variably wound optical fiber is fixably mounted to a surface of a heat conductor of the packaging.Type: ApplicationFiled: March 11, 2019Publication date: September 12, 2019Applicant: NLIGHT, INC.Inventors: Aaron Ludwig Hodges, Nicolas Meacham, Dahv Kliner, Mitchell Ryan Reynolds
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Patent number: 10090631Abstract: A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light. The notches on the optical fiber can be made with a laser ablation system.Type: GrantFiled: December 29, 2016Date of Patent: October 2, 2018Assignee: Lumentum Operations LLCInventors: Kai-Chung Hou, Dahv Kliner, Martin H. Muendel, Jeremy Weston
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Patent number: 9823422Abstract: An optical delivery waveguide for a material laser processing system includes a small lens at an output end of the delivery waveguide, transforming laser beam divergence inside the waveguide into a spot size after the lens. By varying the input convergence angle and/or launch angle of the laser beam launched into the waveguide, the output spot size can be continuously varied, thus enabling a continuous and real-time laser spot size adjustment on the workpiece, without having to replace the delivery waveguide or a process head. A divergence of the laser beam can also be adjusted dynamically and in concert with the spot size.Type: GrantFiled: December 30, 2015Date of Patent: November 21, 2017Assignees: LUMENTUM OPERATIONS LLC, AMADA HOLDINGS CO. LTDInventors: Martin H. Muendel, Dahv Kliner
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Publication number: 20170110845Abstract: A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light. The notches on the optical fiber can be made with a laser ablation system.Type: ApplicationFiled: December 29, 2016Publication date: April 20, 2017Inventors: Kai-Chung HOU, Dahv KLINER, Martin H. MUENDEL, Jeremy WESTON
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Patent number: 9547121Abstract: A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light. The notches on the optical fiber can be made with a laser ablation system.Type: GrantFiled: January 28, 2014Date of Patent: January 17, 2017Assignee: Lumentum Operations LLCInventors: Kai-Chung Hou, Dahv Kliner, Martin H. Muendel, Jeremy Weston
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Publication number: 20160116679Abstract: An optical delivery waveguide for a material laser processing system includes a small lens at an output end of the delivery waveguide, transforming laser beam divergence inside the waveguide into a spot size after the lens. By varying the input convergence angle and/or launch angle of the laser beam launched into the waveguide, the output spot size can be continuously varied, thus enabling a continuous and real-time laser spot size adjustment on the workpiece, without having to replace the delivery waveguide or a process head. A divergence of the laser beam can also be adjusted dynamically and in concert with the spot size.Type: ApplicationFiled: December 30, 2015Publication date: April 28, 2016Inventors: Martin H. MUENDEL, Dahv KLINER
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Patent number: 9250390Abstract: An optical delivery waveguide for a material laser processing system includes a small lens at an output end of the delivery waveguide, transforming laser beam divergence inside the waveguide into a spot size after the lens. By varying the input convergence angle and/or launch angle of the laser beam launched into the waveguide, the output spot size can be continuously varied, thus enabling a continuous and real-time laser spot size adjustment on the workpiece, without having to replace the delivery waveguide or a process head. A divergence of the laser beam can also be adjusted dynamically and in concert with the spot size.Type: GrantFiled: December 6, 2012Date of Patent: February 2, 2016Assignees: Lumentum Operations LLC, Amada Holdings Co., Ltd.Inventors: Martin H. Muendel, Dahv Kliner
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Patent number: 8947768Abstract: The invention provides fiber-optic light sources such as cladding-pumped master oscillator—power amplifier (MOPA) systems which use double-clad optical fibers (DCF). The inner cladding of the first DCF used in the master oscillator section has a circular cross-section in order to enable the formation of low loss optical splices in the integrated MOPA structure. The inner cladding of the second DCF in the output amplifier section has a shaped non-circular cross-section in order to enhance the absorption of the pump light in the doped core of the second DCF.Type: GrantFiled: May 13, 2013Date of Patent: February 3, 2015Assignee: JDS Uniphase CorporationInventors: Dahv Kliner, Martin H. Muendel
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Publication number: 20140211818Abstract: A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light. The notches on the optical fiber can be made with a laser ablation system.Type: ApplicationFiled: January 28, 2014Publication date: July 31, 2014Inventors: Kai-Chung HOU, Dahv Kliner, Martin H. Muendel, Jeremy Weston
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Patent number: 8593725Abstract: The invention relates to pulsed optical sources formed of a source of seed optical radiation, a pulsed optical amplifier for pulsing the seed optical radiation, and an output optical port for outputting a pulsed optical signal produced by the pulsed optical amplifier. An optically isolating element such as an optical circulator is provided in the optical path between the optical seed source and the pulsed optical amplifier.Type: GrantFiled: August 4, 2010Date of Patent: November 26, 2013Assignee: JDS Uniphase CorporationInventors: Dahv Kliner, Martin H. Muendel, Loren Eyres
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Publication number: 20130301116Abstract: The invention provides fiber-optic light sources such as cladding-pumped master oscillator—power amplifier (MOPA) systems which use double-clad optical fibers (DCF). The inner cladding of the first DCF used in the master oscillator section has a circular cross-section in order to enable the formation of low loss optical splices in the integrated MOPA structure. The inner cladding of the second DCF in the output amplifier section has a shaped non-circular cross-section in order to enhance the absorption of the pump light in the doped core of the second DCF.Type: ApplicationFiled: May 13, 2013Publication date: November 14, 2013Inventors: Dahv KLINER, Martin H. MUENDEL
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Publication number: 20130148925Abstract: An optical delivery waveguide for a material laser processing system includes a small lens at an output end of the delivery waveguide, transforming laser beam divergence inside the waveguide into a spot size after the lens. By varying the input convergence angle and/or launch angle of the laser beam launched into the waveguide, the output spot size can be continuously varied, thus enabling a continuous and real-time laser spot size adjustment on the workpiece, without having to replace the delivery waveguide or a process head. A divergence of the laser beam can also be adjusted dynamically and in concert with the spot size.Type: ApplicationFiled: December 6, 2012Publication date: June 13, 2013Inventors: Martin H. Muendel, Dahv Kliner
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Patent number: 8243764Abstract: The invention relates to a laser system including a nonlinear crystal having a first length portion and a second length portion. The nonlinear crystal disposed to receive input light from the laser for converting the input light into frequency converted light; wherein the nonlinear crystal is configured so that the first length portion of the nonlinear crystal is phase matching for the input light and the frequency converted light, and the second length portion of the nonlinear crystal is phase mismatching for the input light and the frequency converted light. Phase mismatching means may include a temperature controlling board, a clamp, or electrodes.Type: GrantFiled: April 1, 2010Date of Patent: August 14, 2012Inventors: Derek A. Tucker, Dahv Kliner, Lawrence E. Myers, Martin H. Muendel
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Publication number: 20110243161Abstract: The invention relates to a laser system including a nonlinear crystal having a first length portion and a second length portion. The nonlinear crystal disposed to receive input light from the laser for converting the input light into frequency converted light; wherein the nonlinear crystal is configured so that the first length portion of the nonlinear crystal is phase matching for the input light and the frequency converted light, and the second length portion of the nonlinear crystal is phase mismatching for the input light and the frequency converted light. Phase mismatching means may include a temperature controlling board, a clamp, or electrodes.Type: ApplicationFiled: April 1, 2010Publication date: October 6, 2011Applicant: JDS Uniphase CorporationInventors: Derek A. TUCKER, Dahv Kliner, Lawrence E. Myers, Martin H. Muendel
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Patent number: 8027555Abstract: A cladding mode stripper for stripping cladding modes from an optical fiber is disclosed. The cladding mode stripper includes a reflective base and a block of a transparent material disposed on the reflective base. The block of the transparent material has a groove in its bottom surface for the fiber. The fiber is thermally coupled to the base and optically coupled to the groove in the block, for example using an index matching gel. The cladding mode light is reflected from the reflective base and is absorbed in a cover enclosing the block. An additional thin block of transparent heat-conductive material can be placed between the fiber and the reflective base, to prevent the index matching gel from contacting the reflective surface of the base.Type: GrantFiled: June 30, 2010Date of Patent: September 27, 2011Assignee: JDS Uniphase CorporationInventors: Dahv Kliner, Derek A. Tucker, Juan Lugo
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Publication number: 20110032605Abstract: The invention relates to pulsed optical sources formed of a source of seed optical radiation, a pulsed optical amplifier for pulsing the seed optical radiation, and an output optical port for outputting a pulsed optical signal produced by the pulsed optical amplifier. An optically isolating element such as an optical circulator is provided in the optical path between the optical seed source and the pulsed optical amplifier.Type: ApplicationFiled: August 4, 2010Publication date: February 10, 2011Applicant: JDS Uniphase CorporationInventors: Dahv KLINER, Martin H. Muendel, Loren Eyres
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Publication number: 20050084222Abstract: The present invention provides a simple method for fabricating fiber-optic glass preforms having complex refractive index configurations and/or dopant distributions in a radial direction with a high degree of accuracy and precision. The method teaches bundling together a plurality of glass rods of specific physical, chemical, or optical properties and wherein the rod bundle is fused in a manner that maintains the cross-sectional composition and refractive-index profiles established by the position of the rods.Type: ApplicationFiled: June 30, 2003Publication date: April 21, 2005Inventors: Dahv Kliner, Jeffery Koplow
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Publication number: 20050053104Abstract: The location of gases that are not visible to the unaided human eye can be determined using tuned light sources that spectroscopically probe the gases and cameras that can provide images corresponding to the absorption of the gases. The present invention is a light source for a backscatter absorption gas imaging (BAGI) system, and a light source incorporating the light source, that can be used to remotely detect and produce images of “invisible” gases. The inventive light source has a light producing element, an optical amplifier, and an optical parametric oscillator to generate wavelength tunable light in the IR. By using a multi-mode light source and an amplifier that operates using 915 nm pump sources, the power consumption of the light source is reduced to a level that can be operated by batteries for long periods of time. In addition, the light source is tunable over the absorption bands of many hydrocarbons, making it useful for detecting hazardous gases.Type: ApplicationFiled: September 10, 2003Publication date: March 10, 2005Inventors: Thomas Kulp, Dahv Kliner, Ricky Sommers, Uta-Barbara Goers, Karla Armstrong
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Patent number: 6724528Abstract: A method of forming a linear polarization-maintaining optical fiber for use in an amplifier, the method comprising the steps of: providing a rare-earth-doped non-polarization-maintaining optical fiber having one or more cladding layers and having a random birefringence; providing a mandrel having a selected diameter; coiling said non-polarization-maintaining optical fiber under a selected tension around said mandrel to induce a linear birefringence greater than said random birefringence in said non-polarization-maintaining optical fiber thereby forming a polarization-maintaining optical fiber; wherein said mandrel diameter is chosen to avoid significant bend loss; wherein said rare-earth dopant is selected from the group consisting Nd3+, Yb3+, Pr3+, Ho3+, Er3+, Sm3+ and Tm3+; wherein said mandrel diameter is selected to be from about 0.1 cm to about 10 cm; and wherein said tension is chosen to avoid undesirable weakening of said non-polarization-maintaining fiber.Type: GrantFiled: February 27, 2002Date of Patent: April 20, 2004Assignee: The United States of America as represented by the Secretary of the NavyInventors: Jeff Koplow, Dahv Kliner, Lew Goldberg