Patents by Inventor Edmund L. Wolak
Edmund L. Wolak 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: 9341856Abstract: Devices and methods for maintaining the brightness of laser emitter bar outputs having multiple emitters for coupling and other applications. In some embodiments, at least one brightness enhancement optic may be used in combination with a beam reformatting optic.Type: GrantFiled: June 23, 2014Date of Patent: May 17, 2016Assignee: II-VI LASER ENTERPRISE GMBHInventors: Edmund L. Wolak, Oscar D. Romero, Jr., James Harrison, Sang-Ki Park
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Patent number: 9316846Abstract: A high brightness, high power laser output is produced using a technique of splitting the outputs of multiple laser diode sources into two polarization states, wavelength combining the first polarization state from the multiple laser diodes, separately wavelength combining the second polarization state from the multiple laser diodes, and recombining the two polarized wavelength combined beams using a polarization combiner.Type: GrantFiled: July 11, 2013Date of Patent: April 19, 2016Inventor: Edmund L. Wolak
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Patent number: 9166365Abstract: Optical systems and components thereof are disclosed which may be used for efficiently coupling laser energy into an optical conduit while maintaining a homogenous beam output from the optical conduit. Some embodiments are directed more specifically to far field beam homogenization of optical fiber coupled radiation.Type: GrantFiled: January 20, 2011Date of Patent: October 20, 2015Assignee: II-VI LASER ENTERPRISE GMBHInventors: Sang-Ki Park, Edmund L. Wolak, John K. Johnson, Serge Cutillas
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Publication number: 20150015952Abstract: A high brightness, high power laser output is produced using a technique of splitting the outputs of multiple laser diode sources into two polarization states, wavelength combining the first polarization state from the multiple laser diodes, separately wavelength combining the second polarization state from the multiple laser diodes, and recombining the two polarized wavelength combined beams using a polarization combiner.Type: ApplicationFiled: July 11, 2013Publication date: January 15, 2015Inventor: Edmund L. Wolak
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Publication number: 20140300971Abstract: Devices and methods for maintaining the brightness of laser emitter bar outputs having multiple emitters for coupling and other applications. In some embodiments, at least one brightness enhancement optic may be used in combination with a beam reformatting optic.Type: ApplicationFiled: June 23, 2014Publication date: October 9, 2014Inventors: Edmund L. WOLAK, Oscar D. ROMERO, Jr., James HARRISON, Sang-Ki PARK
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Patent number: 8804246Abstract: Devices and methods for maintaining the brightness of laser emitter bar outputs having multiple emitters for coupling and other applications. In some embodiments, at least one brightness enhancement optic may be used in combination with a beam reformatting optic.Type: GrantFiled: May 7, 2009Date of Patent: August 12, 2014Assignee: II-VI Laser Enterprise GmbHInventors: Edmund L. Wolak, Oscar D. Romero, Jr., James Harrison, Sang-Ki Park
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Patent number: 8644357Abstract: Embodiments are directed to laser emitter modules, or subassemblies thereof, and methods and devices for making or using the modules. Some module embodiments are configured to provide hermetically sealed enclosures that are thermally stable during use, highly reliable in adverse environments, convenient and cost effective to manufacture or any combination of the foregoing.Type: GrantFiled: January 11, 2011Date of Patent: February 4, 2014Assignee: II-VI IncorporatedInventors: Daming Liu, Edmund L. Wolak, Serge Cutillas
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Publication number: 20130058124Abstract: Optical systems and components thereof are disclosed which may be used for efficiently coupling laser energy into an optical conduit while maintaining a homogenous beam output from the optical conduit. Some embodiments are directed more specifically to far field beam homogenization of optical fiber coupled radiation.Type: ApplicationFiled: January 20, 2011Publication date: March 7, 2013Applicant: OCLARO PHOTONICS, INC.Inventors: Sang-Ki Park, Edmund L. Wolak, John K. Johnson, Serge Cutillas
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Publication number: 20120177074Abstract: Embodiments are directed to laser emitter modules, or subassemblies thereof, and methods and devices for making or using the modules. Some module embodiments are configured to provide hermetically sealed enclosures that are thermally stable during use, highly reliable in adverse environments, convenient and cost effective to manufacture or any combination of the foregoing.Type: ApplicationFiled: January 11, 2011Publication date: July 12, 2012Inventors: Daming Liu, Edmund L. Wolak, Serge Cutillas
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Publication number: 20110103056Abstract: Devices and methods for maintaining the brightness of laser emitter bar outputs having multiple emitters for coupling and other applications. In some embodiments, at least one brightness enhancement optic may be used in combination with a beam reformatting optic.Type: ApplicationFiled: May 7, 2009Publication date: May 5, 2011Applicant: OCLARO PHOTONICS INC.Inventors: Edmund L. Wolak, Oscar D. Romero, JR., James Harrison, Sang-Ki Park
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Patent number: 7830608Abstract: Methods and devices for coupling the output of multiple emitters of a laser diode bar using a beam transform system with high brightness and coupling efficiency. Some embodiments may include wavelength locking with devices such as VBGs and other suitable devices and methods.Type: GrantFiled: May 10, 2007Date of Patent: November 9, 2010Assignee: Oclaro Photonics, Inc.Inventors: Yongdan Hu, Edmund L. Wolak
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Publication number: 20070268571Abstract: Methods and devices for coupling the output of multiple emitters of a laser diode bar using a beam transform system with high brightness and coupling efficiency. Some embodiments may include wavelength locking with devices such as VBGs and other suitable devices and methods.Type: ApplicationFiled: May 10, 2007Publication date: November 22, 2007Applicant: Newport CorporationInventors: Yongdan HU, Edmund L. Wolak
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Publication number: 20070268572Abstract: Methods and devices for coupling the output of multiple emitters of a laser diode bar using a beam transform system with high brightness and coupling efficiency. Some embodiments may include wavelength locking with devices such as VBGs and other suitable devices and methods.Type: ApplicationFiled: May 10, 2007Publication date: November 22, 2007Applicant: Newport CorporationInventors: Yongdan HU, Edmund L. Wolak
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Patent number: 7212554Abstract: A high power light source having an array, bundle or separate plurality of laser diodes coupled to a same number of multimode waveguides to collect beams of light emitted from the of laser diodes is provided. An optical combiner receives the beams of light and combines the beams of light into a single forward propagating beam of light so that substantially all optical radiation within each beam of light overlaps the optical radiation each other beam to form the single beam. A reflective element is located to receive the single forward propagating beam of light and transmits greater than 60% of the single forward propagating beam of light therethrough. The reflective element reflects between 3–40% of the single forward propagating beam back to the laser diodes as feedback to stabilize said laser diodes.Type: GrantFiled: September 29, 2004Date of Patent: May 1, 2007Assignee: JDS Uniphase CorporationInventors: Erik Paul Zucker, Edmund L. Wolak, Vincent V. Wong, Chris Hart, Jay A. Skidmore, Randolph W. Hines
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Patent number: 6969205Abstract: A fiber tail assembly (FTA) with a micro-lens formed in the fiber tip is used to couple the laser light out of the package and along the fiber. The FTA is soldered at two points where metallized bands are deposited on the fiber pigtail, one at a fiber mount near the diode where it can be soldered into alignment with the laser diode, and two at the snout which forms a feed through the housing and seal for the package. Typically, the FTA is metallized along its entire length within the package. In this invention the two-metallized bands are separated by a region that is unmetallized.Type: GrantFiled: December 4, 2003Date of Patent: November 29, 2005Assignee: JDS Uniphase CorporationInventors: Richard L. Duesterberg, Edmund L. Wolak, Marc K. Von Gunten, Nina Morozova, Donald C. Hargreaves, Prasad Yalamanchili, Hilary Clarke, Jay A. Skidmore, Lei Xu, Christopher L. Hart, William Bardy, Jeffrey Zack, Kuochou Tai
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Patent number: 6792012Abstract: A laser package comprises a laser diode source having a first Fabry-Perot cavity between a highly reflective back facet and low reflective front facet for providing a first light output for an optical application. A light monitor is positioned adjacent to the back facet and aligned to receive a second light output from the laser diode back facet. A pigtail fiber having a lensed fiber input end is positioned from the laser diode front facet to form an optical coupling region and is aligned relative to the lasing cavity to receive the first light output into the fiber, the light output exiting the package for coupling to the application. A portion of the first light output from the lasing cavity is reflected off the lensed fiber input end with a portion directed back into the lasing cavity and another portion reflected off of the laser diode front facet.Type: GrantFiled: October 30, 2001Date of Patent: September 14, 2004Assignee: JDS Uniphase CorporationInventors: Edmund L. Wolak, Tae J. Kim, Harrison Ransom
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Patent number: 6792008Abstract: A laser package comprises a laser diode source having a first Fabry-Perot cavity between a highly reflective back facet and low reflective front facet for providing a first light output for an optical application. A light monitor is positioned adjacent to the back facet and aligned to receive a second light output from the laser diode back facet. A pigtail fiber having a lensed fiber input end is positioned from the laser diode front facet to form an optical coupling region and is aligned relative to the lasing cavity to receive the first light output into the fiber, the light output exiting the package for coupling to the application. A portion of the first light output from the lasing cavity is reflected off the lensed fiber input end with a portion directed back into the lasing cavity and another portion reflected off of the laser diode front facet.Type: GrantFiled: July 24, 2001Date of Patent: September 14, 2004Assignee: JDS Uniphase CorporationInventors: Edmund L. Wolak, Tae J. Kim, Harrison Ransom, Jo Major, Robert Lang
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Patent number: 6748137Abstract: A microlens on the end of an optical fiber has reduced back reflections to a light source, such as a pump laser diode. In a particular embodiment, the microlens is lapped on two radii, at least one of which is offset from the center axis of the fiber, to form a point on the end of the fiber, thus reducing a surface for reflecting light back to the light source. In another embodiment, the microlens is formed with two different side surface angles to accommodate misalignment of the light source to the fiber mount. In another embodiment a Fresnel lens structure on the end of the fiber operates optically as an angled chisel lens.Type: GrantFiled: July 24, 2001Date of Patent: June 8, 2004Assignee: JDS Uniphase CorporationInventors: Edmund L. Wolak, Lei Xu, Robert Lang, Tae J. Kim
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Publication number: 20030161379Abstract: The invention provides a laser package having a single-mode laser diode for emitting light; a single-mode optical fiber comprising an uncoated microlens formed on an input end of said single-mode optical fiber, the microlens optically coupled to the laser diode for receiving the light, the microlens being constructed so as to reduce a level of back reflection into the laser diode so as not to disturb an operation of the laser diode, wherein a center axis of the single-mode optical fiber is co-planar with an optical axis of the laser diode; and a grating formed in the single-mode optical fiber for providing feedback to the laser diode to stabilize the emitted light from the laser diode. The single-mode optical fiber can include a length of polarization maintaining fiber between the grating and the single-mode laser diode.Type: ApplicationFiled: December 20, 2002Publication date: August 28, 2003Applicant: JDS Uniphase CorporationInventors: Edmund L. Wolak, Nina Morozova, Jay A. Skidmore, Ning Yao Fan, Jo S. Major, Robert J. Lang, Garnet Scott Luick, Donald C. Hargreaves, Vincent V. Wong, Richard L. Duesterberg
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Publication number: 20020159693Abstract: A microlens on the end of an optical fiber has reduced back reflections to a light source, such as a pump laser diode. In a particular embodiment, the microlens is lapped on two radii, at least one of which is offset from the center axis of the fiber, to form a point on the end of the fiber, thus reducing a surface for reflecting light back to the light source. In another embodiment, the microlens is formed with two different side surface angles to accommodate misalignment of the light source to the fiber mount. In another embodiment a Fresnel lens structure on the end of the fiber operates optically as an angled chisel lens.Type: ApplicationFiled: July 24, 2001Publication date: October 31, 2002Applicant: JDS Uniphase CorporationInventors: Edmund L. Wolak, Lei Xu, Robert Lang, Tae J. Kim