Patents by Inventor Pang-Chen Sun
Pang-Chen Sun 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: 20180003906Abstract: Disclosed are an apparatus and associated method and computer-readable medium for connecting a fiber array connector (FAC) with a photonic subassembly comprising a plurality of waveguides with a predetermined disposition relative to a top surface of a substrate. A plurality of optical fibers extend to a first surface of the FAC. The method comprises moving, using a positioning device, the FAC from a first position in which the first surface is seated against a second surface of the photonic subassembly to a second position such that the first surface has a predetermined distance from the second surface. The method further comprises performing, using the positioning device, an active alignment of the plurality of optical fibers with the plurality of waveguides, and applying, using an application device, an adhesive to form a physical interface between at least two opposing surfaces of the photonic subassembly and the FAC.Type: ApplicationFiled: July 1, 2016Publication date: January 4, 2018Inventors: Ravinder KACHRU, Joyce PETERNEL, Pang-Chen SUN
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Patent number: 9692522Abstract: Embodiments herein describe an optical receiver that demultiplexes a multi-wavelength optical signal into a plurality of optical signals with respective wavelengths. Stated differently, the various wavelengths in the received optical signal are separated into different optical signals with different wavelengths. In one embodiment, the optical receiver includes a plurality of optical filters that is aligned with a mirror to perform the demultiplexing function. The embodiments herein disclose optical receivers where the optical components performing the demultiplexing function using a ball lens aligned with optical filters.Type: GrantFiled: April 15, 2015Date of Patent: June 27, 2017Assignee: Cisco Technology, Inc.Inventors: Stefan Martin Pfnuer, Pang-Chen Sun
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Patent number: 9482818Abstract: Embodiments disclosed herein generally relate to an optical device for transferring light between a first and second waveguide. The optical device may generally include the first waveguide, a first support member and a base on which the first waveguide and first support member are disposed. The optical device may further include a second support member wherein the first support member is disposed between the second support member and the base. The second support member comprises at least one groove. The second waveguide may be disposed at least partially in the groove such that the second waveguide is between the first and second support members. The optical device may further include at least one lens disposed between the first waveguide and the second waveguide to transfer an optical signal between the first and second waveguides through the lens.Type: GrantFiled: February 23, 2015Date of Patent: November 1, 2016Assignee: Cisco Technology, Inc.Inventors: Ravinder Kachru, Pang-Chen Sun, Chris Kiyoshi Togami
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Publication number: 20160308622Abstract: Embodiments herein describe an optical receiver that demultiplexes a multi-wavelength optical signal into a plurality of optical signals with respective wavelengths. Stated differently, the various wavelengths in the received optical signal are separated into different optical signals with different wavelengths. In one embodiment, the optical receiver includes a plurality of optical filters that is aligned with a mirror to perform the demultiplexing function. The embodiments herein disclose optical receivers where the optical components performing the demultiplexing function using a ball lens aligned with optical filters.Type: ApplicationFiled: April 15, 2015Publication date: October 20, 2016Inventors: Stefan Martin PFNUER, Pang-Chen SUN
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Publication number: 20160246004Abstract: Embodiments disclosed herein generally relate to an optical device for transferring light between a first and second waveguide. The optical device may generally include the first waveguide, a first support member and a base on which the first waveguide and first support member are disposed. The optical device may further include a second support member wherein the first support member is disposed between the second support member and the base. The second support member comprises at least one groove. The second waveguide may be disposed at least partially in the groove such that the second waveguide is between the first and second support members. The optical device may further include at least one lens disposed between the first waveguide and the second waveguide to transfer an optical signal between the first and second waveguides through the lens.Type: ApplicationFiled: February 23, 2015Publication date: August 25, 2016Applicant: CISCO TECHNOLOGY, INC.Inventors: Ravinder KACHRU, Pang-Chen SUN, Chris Kiyoshi TOGAMI
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Publication number: 20150198526Abstract: A differential measurement design employing two nearly collinear optical beams provides surface plasmon polariton resonance (SPR) sensors and a corresponding method of increased dynamic range and signal to noise ratio. The differential measurement device and method based on wavelength interrogation, employs a single incident polarization state, and is combined with a 2-D nanohole array for operation at near-normal incidence, where this approach offers a decrease in the measurement time.Type: ApplicationFiled: February 13, 2015Publication date: July 16, 2015Inventors: Joanna N. Ptasinski, Lin Pang, Pang-Chen Sun, Boris Slutsky, Yeshaiahu Fainman
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Patent number: 8958999Abstract: A differential measurement design employing two nearly collinear optical beams provides surface plasmon polariton resonance (SPR) sensors and a corresponding method of increased dynamic range and signal to noise ratio. The differential measurement device and method based on wavelength interrogation, employs a single incident polarization state, and is combined with a 2-D nanohole array for operation at near-normal incidence, where this approach offers a decrease in the measurement time.Type: GrantFiled: August 1, 2011Date of Patent: February 17, 2015Assignee: The United States of America as represented by the Secretary of the NavyInventors: Joanna N. Ptasinski, Lin Pang, Pang-Chen Sun, Boris Slutsky, Yeshaiahu Fainman
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Patent number: 7421158Abstract: The invention is directed to a method for etching a solid state material to create a surface relief pattern. A resist layer is formed on the surface of the solid state material. The photoresist layer is holographically patterned to form a patterned mask. The pattern is then transferred into the solid state material by a dry etching process. The invention is especially useful for forming optical nanostructures. In preferred embodiments, a direct write process, such as ebeam lithography, is used to define defects and functional elements, such as waveguides and cavities.Type: GrantFiled: July 18, 2003Date of Patent: September 2, 2008Assignee: The Regents of the University of CaliforniaInventors: Yeshaiahu Fainman, Wataru Nakagawa, Chyong-Hua Chen, Pang-Chen Sun, Lin Pang
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Patent number: 7171085Abstract: A polarization compensated planar waveguide branch is disclosed having a planar optical trunk waveguide for transporting a linearly un-polarized optical signal having TE and TM modes. A planar optical branch waveguide, capable of supporting TE and TM modes is optically coupled to the trunk waveguide such that at least a portion of an optical signal propagating within the trunk waveguide will couple into the branch waveguide with an undesired imbalance, having stronger TM mode coupling than TE mode coupling for the at least the portion of the optical signal which couples into the branch waveguide from the trunk waveguide.Type: GrantFiled: July 29, 2003Date of Patent: January 30, 2007Assignee: JDS Uniphase CorporationInventors: David J. Dougherty, Pang-Chen Sun, Duncan W. Harwood
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Patent number: 7106930Abstract: A demultiplexer/multiplexer is disclosed wherein an arrayed waveguide grating having a reflector at an end includes selectable signal path blockers. The arrayed waveguide device has a common input/output port for launching radiation in the form of an input signal having n wavelengths therein and for receiving back via the reflector at the input/output port a selected channel of the input signal. In operation a multiplexed signal have n channels is launched therein and a selected channel is output for analysis or further processing.Type: GrantFiled: June 28, 2004Date of Patent: September 12, 2006Assignee: JDS Uniphase CorporationInventors: Jinxi Shen, Anca L. Sala, David J. Dougherty, David Funk, Douglas E. Crafts, Barthelemy Fondeur, Pang-Chen Sun
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Patent number: 7035505Abstract: An apparatus for monitoring an input optical signal at a plurality of distinct optical frequencies is disclosed wherein a demultiplexing arrayed waveguide grating (AWG) having a plurality of M>1 Vernier input ports is disposed between an optical switch and a photodiode array coupled to the output ports of the AWG. In operation, the optical switch sequentially provides the input optical signal into each of the Vernier ports, and signals detected by photodiodes are stored in a memory unit. The apparatus is capable of monitoring the input optical signal with a frequency step which is M times smaller than a frequency spacing between the AWG transmission bands, and obtain M frequency-resolved readings from each photodiode.Type: GrantFiled: July 22, 2004Date of Patent: April 25, 2006Assignee: JDS Uniphase CorporationInventors: Jinxi Shen, Robert R. McLeod, Douglas E. Crafts, Barthelemy Fondeur, Yong Ding, Pang-Chen Sun
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Publication number: 20050153464Abstract: The invention is directed to a method for etching a solid state material to create a surface relief pattern. A resist layer is formed on the surface of the solid state material. The photoresist layer is holographically patterned to form a patterned mask. The pattern is then transferred into the solid state material by a dry etching process. The invention is especially useful for forming optical nanostructures. In preferred embodiments, a direct write process, such as ebeam lithography, is used to define defects and functional elements, such as waveguides and cavities.Type: ApplicationFiled: July 18, 2003Publication date: July 14, 2005Inventors: Yeshaiahu Fainman, Wataru Nakagawa, Chyong-Hua Chen, Pang-Chen Sun, Lin Pang
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Publication number: 20050031259Abstract: An apparatus for monitoring an input optical signal at a plurality of distinct optical frequencies is disclosed wherein a demultiplexing arrayed waveguide grating (AWG) having a plurality of M>1 Vernier input ports is disposed between an optical switch and a photodiode array coupled to the output ports of the AWG. In operation, the optical switch sequentially provides the input optical signal into each of the Vernier ports, and signals detected by photodiodes are stored in a memory unit. The apparatus is capable of monitoring the input optical signal with a frequency step which is M times smaller than a frequency spacing between the AWG transmission bands, and obtain M frequency-resolved readings from each photodiode.Type: ApplicationFiled: July 22, 2004Publication date: February 10, 2005Applicant: JDS Uniphase CorporationInventors: Jinxi Shen, Robert McLeod, Douglas Crafts, Barthelemy Fondeur, Yong Ding, Pang-Chen Sun
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Publication number: 20050025427Abstract: A polarization compensated planar waveguide branch is disclosed having a planar optical trunk waveguide for transporting a linearly un-polarized optical signal having TE and TM modes. A planar optical branch waveguide, capable of supporting TE and TM modes is optically coupled to the trunk waveguide such that at least a portion of an optical signal propagating within the trunk waveguide will couple into the branch waveguide with an undesired imbalance, having stronger TM mode coupling than TE mode coupling for the at least the portion of the optical signal which couples into the branch waveguide from the trunk waveguide.Type: ApplicationFiled: July 29, 2003Publication date: February 3, 2005Applicant: JDS Uniphase CorporationInventors: David Dougherty, Pang-Chen Sun, Duncan Harwood
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Publication number: 20050018965Abstract: A demultiplexer/multiplexer is disclosed wherein an arrayed waveguide grating having a reflector at an end includes selectable signal path blockers. The arrayed waveguide device has a common input/output port for launching radiation in the form of an input signal having n wavelengths therein and for receiving back via the reflector at the input/output port a selected channel of the input signal. In operation a multiplexed signal have n channels is launched therein and a selected channel is output for analysis or further processing.Type: ApplicationFiled: June 28, 2004Publication date: January 27, 2005Applicant: JDS Uniphase CorporationInventors: Jinxi Shen, Anca Sala, David Dougherty, David Funk, Douglas Crafts, Barthelemy Fondeur, Pang-Chen Sun
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Publication number: 20040207923Abstract: A four port optical add/drop multiplexer (OADM) includes an optical filter reflective at a first wavelength and transmissive at a second wavelength. An input path having both first and second wavelengths is routed toward a first side of the filter. An optical DROP path is routed from a second side of the filter, to carry the transmitted second wavelength from the filter; and an optical ADD path is routed toward the second side of the filter for carrying an ADD signal, at the second wavelength. An output path carries the first and second wavelengths from the first side of the filter, including the ADD signal at the second wavelength, providing full OADM functionality, using a single filter. The device may include collimating lenses in the signal paths, and in one embodiment the filter can be a thin film filter fabricated directly on one of these lenses, thus improving optical performance.Type: ApplicationFiled: February 7, 2002Publication date: October 21, 2004Applicant: Scion Photonics, Inc.Inventors: Ravinder Kachru, Pang-Chen Sun