Patents by Inventor Richard L. Duesterberg
Richard L. Duesterberg 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: 9453967Abstract: Fiber burning and/or overheating of the fiber feedthrough in high-power laser modules, which may cause catastrophic and/or collateral damage, may be addressed by providing an optical fiber assembly designed to withstand overheating due to errant high power laser light that is directed toward the input core of a fiber but may be at least partially misaligned. The optical fiber may be secured within a mount having a passageway such that the end face of the optical fiber extends past an opening of the passageway to a focal plane of the incident light. The end of the optical fiber may include a section that has a reduced or absent cladding layer (e.g., etched to form a tapered cladding region) so as to reduce the amount of light captured by the cladding and/or to leak the light out quickly.Type: GrantFiled: October 17, 2014Date of Patent: September 27, 2016Assignee: Lumentum Operations LLCInventors: Richard L. Duesterberg, Yan Xiao
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Publication number: 20160109656Abstract: Fiber burning and/or overheating of the fiber feedthrough in high-power laser modules, which may cause catastrophic and/or collateral damage, may be addressed by providing an optical fiber assembly designed to withstand overheating due to errant high power laser light that is directed toward the input core of a fiber but may be at least partially misaligned. The optical fiber may be secured within a mount having a passageway such that the end face of the optical fiber extends past an opening of the passageway to a focal plane of the incident light. The end of the optical fiber may include a section that has a reduced or absent cladding layer (e.g., etched to form a tapered cladding region) so as to reduce the amount of light captured by the cladding and/or to leak the light out quickly.Type: ApplicationFiled: October 17, 2014Publication date: April 21, 2016Inventors: Richard L. Duesterberg, Lei Xu, Yan Xiao
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Patent number: 9036678Abstract: A fiber coupled semiconductor device and a method of manufacturing of such a device are disclosed. The method provides an improved stability of optical coupling during assembly of the device, whereby a higher optical power levels and higher overall efficiency of the fiber coupled device can be achieved. The improvement is achieved by attaching the optical fiber to a vertical mounting surface of a fiber mount. The platform holding the semiconductor chip and the optical fiber can be mounted onto a spacer mounted on a base. The spacer has an area smaller than the area of the platform, for mechanical decoupling of thermally induced deformation of the base from a deformation of the platform of the semiconductor device. Optionally, attaching the fiber mount to a submount of the semiconductor chip further improves thermal stability of the packaged device.Type: GrantFiled: July 27, 2010Date of Patent: May 19, 2015Assignee: JDS Uniphase CorporationInventors: Reddy Raju, Richard L. Duesterberg, Jay A. Skidmore, Prasad Yalamanchili, Xiangdong Qiu
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Patent number: 8475056Abstract: A fiber coupled semiconductor device having an improved optical stability with respect to temperature variation is disclosed. The stability improvement is achieved by placing the platform holding the semiconductor chip and the optical fiber onto a spacer mounted on a base. The spacer has an area smaller than the area of the platform, for mechanical decoupling of thermally induced deformation of the base from a deformation of the platform of the semiconductor device. Attaching the optical fiber to a vertical mounting surface of a fiber mount, and additionally attaching the fiber mount to a submount of the semiconductor chip further improves thermal stability of the packaged device.Type: GrantFiled: July 26, 2010Date of Patent: July 2, 2013Assignee: JDS Uniphase CorporationInventors: Prasad Yalamanchili, Xiangdong Qiu, Reddy Raju, Jay A. Skidmore, Michael Au, Laura Zavala, Richard L. Duesterberg
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Patent number: 8437086Abstract: The invention relates to sources of optical radiation wherein polarized radiation from first and second rows of light emitters is first collimated and combined into two combined beam using first and second rows of collimating and beam re-directing elements, respectively, and then polarization multiplexed to form a polarization-multiplexed output beam. In order to reduce the footprint, emitters of the first and second emitter rows are disposed in an interleaved, staggered arrangement, and the second row of collimating and beam re-directing elements is disposed in a space between the first emitter row and the first row of collimating and beam re-directing elements.Type: GrantFiled: March 31, 2011Date of Patent: May 7, 2013Assignee: JDS Uniphase CorporationInventors: Jihua Du, James Yonghong Guo, Lei Xu, Richard L. Duesterberg, Jay A. Skidmore
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Patent number: 8427749Abstract: The invention relates to sources of optical radiation wherein polarized radiation from first and second rows of light emitters is first collimated and combined into two combined beam using first and second rows of collimating and beam re-directing elements, respectively, and then polarization multiplexed to form a polarization-multiplexed output beam. In order to reduce the footprint, emitters of the first and second emitter rows are disposed in an interleaved, staggered arrangement, and the second row of collimating and beam re-directing elements is disposed in a space between the first emitter row and the first row of collimating and beam re-directing elements.Type: GrantFiled: June 30, 2010Date of Patent: April 23, 2013Assignee: JDS Uniphase CorporationInventors: Jihua Du, James Yonghong Guo, Lei Xu, Richard L. Duesterberg, Jay A. Skidmore
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Publication number: 20120002293Abstract: The invention relates to sources of optical radiation wherein polarized radiation from first and second rows of light emitters is first collimated and combined into two combined beam using first and second rows of collimating and beam re-directing elements, respectively, and then polarization multiplexed to form a polarization-multiplexed output beam. In order to reduce the footprint, emitters of the first and second emitter rows are disposed in an interleaved, staggered arrangement, and the second row of collimating and beam re-directing elements is disposed in a space between the first emitter row and the first row of collimating and beam re-directing elements.Type: ApplicationFiled: June 30, 2010Publication date: January 5, 2012Inventors: Jihua Du, James Yonghong Guo, Lei Xu, Richard L. Duesterberg, Jay A. Skidmore
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Publication number: 20120002395Abstract: The invention relates to sources of optical radiation wherein polarized radiation from first and second rows of light emitters is first collimated and combined into two combined beam using first and second rows of collimating and beam re-directing elements, respectively, and then polarization multiplexed to form a polarization-multiplexed output beam. In order to reduce the footprint, emitters of the first and second emitter rows are disposed in an interleaved, staggered arrangement, and the second row of collimating and beam re-directing elements is disposed in a space between the first emitter row and the first row of collimating and beam re-directing elements.Type: ApplicationFiled: March 31, 2011Publication date: January 5, 2012Applicant: JDS Uniphase CorporationInventors: Jihua Du, James Yonghong Guo, Lei Xu, Richard L. Duesterberg, Jay A. Skidmore
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Publication number: 20110026877Abstract: A fiber coupled semiconductor device having an improved optical stability with respect to temperature variation is disclosed. The stability improvement is achieved by placing the platform holding the semiconductor chip and the optical fiber onto a spacer mounted on a base. The spacer has an area smaller than the area of the platform, for mechanical decoupling of thermally induced deformation of the base from a deformation of the platform of the semiconductor device. Attaching the optical fiber to a vertical mounting surface of a fiber mount, and additionally attaching the fiber mount to a submount of the semiconductor chip further improves thermal stability of the packaged device.Type: ApplicationFiled: July 26, 2010Publication date: February 3, 2011Inventors: Prasad YALAMANCHILI, Xiangdong QIU, Reddy RAJU, Jay A. SKIDMORE, Michael AU, Laura ZAVALA, Richard L. DUESTERBERG
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Publication number: 20110026558Abstract: A fiber coupled semiconductor device and a method of manufacturing of such a device are disclosed. The method provides an improved stability of optical coupling during assembly of the device, whereby a higher optical power levels and higher overall efficiency of the fiber coupled device can be achieved. The improvement is achieved by attaching the optical fiber to a vertical mounting surface of a fiber mount. The platform holding the semiconductor chip and the optical fiber can be mounted onto a spacer mounted on a base. The spacer has an area smaller than the area of the platform, for mechanical decoupling of thermally induced deformation of the base from a deformation of the platform of the semiconductor device. Optionally, attaching the fiber mount to a submount of the semiconductor chip further improves thermal stability of the packaged device.Type: ApplicationFiled: July 27, 2010Publication date: February 3, 2011Applicant: JDS Uniphase CorporationInventors: Reddy RAJU, Richard L. Duesterberg, Jay A. Skidmore, Prasad Yalamanchili, Xiangdong Qiu
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Patent number: 7512306Abstract: The invention provides a fiber pigtail assembly wherein a polarization maintaining fiber is soldered directly to a mounting pad without a sleeve or a ferrule therebetween. A portion of the polarization maintaining fiber near a fiber end is embedded in a vertical slow axis orientation within an asymmetrical solder ball having a flat portion for adhering to the mounting pad. The vertical slow axis orientation of the polarization maintaining fiber within the solder ball enhances power stability and polarization extinction ratio properties of optical modules utilizing the invention.Type: GrantFiled: December 26, 2007Date of Patent: March 31, 2009Assignee: JDS Uniphase CorporationInventors: Richard L. Duesterberg, Jay A. Skidmore, Marc K. Von Gunten, Nicolas Guerin
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Publication number: 20080212916Abstract: The invention provides a fiber pigtail assembly wherein a polarization maintaining fiber is soldered directly to a mounting pad without a sleeve or a ferrule therebetween. A portion of the polarization maintaining fiber near a fiber end is embedded in a vertical slow axis orientation within an asymmetrical solder ball having a flat portion for adhering to the mounting pad. The vertical slow axis orientation of the polarization maintaining fiber within the solder ball enhances power stability and polarization extinction ratio properties of optical modules utilizing the invention.Type: ApplicationFiled: December 26, 2007Publication date: September 4, 2008Applicant: JDS Uniphase Corporation, Sate of Incorporation DelawareInventors: Richard L. Duesterberg, Jay A. Skidmore, Marc K. Von Gunten, Nicolas Guerin
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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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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