Patents by Inventor Olufemi I. Dosunmu
Olufemi I. Dosunmu 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: 20220221743Abstract: Techniques for termination for microring modulators are disclosed. In the illustrative embodiment, a microring modulator on a photonic integrated circuit (PIC) die is modulated by radiofrequency (RF) signals connected to electrodes across the microring modulator. A resistor is connected to each of the electrodes. The resistors both provide termination for the RF signals, preventing or reducing reflections, as well as forming part of a bias tee, allowing for a DC bias voltage to be applied across the electrodes.Type: ApplicationFiled: April 1, 2022Publication date: July 14, 2022Applicant: Intel CorporationInventors: Sanjeev Gupta, Olufemi I. Dosunmu, Nikolai Fediakine, Jin Hong, David Chak Wang Hui, Christian Malouin, Meer Nazmus Sakib, Jianying Zhou
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Publication number: 20220107461Abstract: In one embodiment, an apparatus includes a substrate, an oxide layer on the substrate, a silicon layer on the oxide layer, which includes a waveguide region and etched regions adjacent to the waveguide region, a germanium layer on the silicon layer and adjacent the waveguide region of the silicon layer, and a resistive element adjacent to the germanium layer to provide heat to the germanium layer in response to a current applied to the resistive element.Type: ApplicationFiled: November 10, 2021Publication date: April 7, 2022Applicant: Intel CorporationInventors: Olufemi I. Dosunmu, Zhi Li, Mengyuan Huang, Aliasghar Eftekhar
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Patent number: 9900102Abstract: Embodiments of the present disclosure provide an apparatus comprising an integrated circuit with a chip-on-chip and chip-on-substrate configuration. In one instance, the apparatus may include an optical transceiver with an opto-electronic component disposed in a first portion of a die, and a trace coupled with the opto-electronic component and disposed to extend to a surface in a second portion of the die adjacent to the first portion, to provide electrical connection for the integrated circuit and another integrated circuit to be coupled with the second portion of the die in a chip-on-chip configuration. The apparatus may include a second trace disposed in the second portion of the die to extend to the surface in the second portion, to provide electrical connection for the other integrated circuit and a substrate to be coupled with the second portion of the die in a chip-on-substrate configuration. Other embodiments may be described and/or claimed.Type: GrantFiled: December 1, 2015Date of Patent: February 20, 2018Assignee: Intel CorporationInventors: Olufemi I. Dosunmu, Myung Jin Yim, Ansheng Liu
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Publication number: 20170155450Abstract: Embodiments of the present disclosure provide an apparatus comprising an integrated circuit with a chip-on-chip and chip-on-substrate configuration. In one instance, the apparatus may include an optical transceiver with an opto-electronic component disposed in a first portion of a die, and a trace coupled with the opto-electronic component and disposed to extend to a surface in a second portion of the die adjacent to the first portion, to provide electrical connection for the integrated circuit and another integrated circuit to be coupled with the second portion of the die in a chip-on-chip configuration. The apparatus may include a second trace disposed in the second portion of the die to extend to the surface in the second portion, to provide electrical connection for the other integrated circuit and a substrate to be coupled with the second portion of the die in a chip-on-substrate configuration. Other embodiments may be described and/or claimed.Type: ApplicationFiled: December 1, 2015Publication date: June 1, 2017Inventors: Olufemi I. Dosunmu, Myung Jin Yim, Ansheng Liu
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Publication number: 20140367740Abstract: A semiconductor waveguide based optical receiver is disclosed. An apparatus according to aspects of the present invention includes an absorption region including a first type of semiconductor region proximate to a second type of semiconductor region. The first type of semiconductor is to absorb light in a first range of wavelengths and the second type of semiconductor to absorb light in a second range of wavelengths. A multiplication region is defined proximate to and separate from the absorption region. The multiplication region includes an intrinsic semiconductor region in which there is an electric field to multiply the electrons created in the absorption region.Type: ApplicationFiled: August 28, 2014Publication date: December 18, 2014Inventors: Micheal T. Morse, Olufemi I. Dosunmu, Ansheng Liu, Mario J. Paniccia
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Patent number: 8829566Abstract: A semiconductor waveguide based optical receiver is disclosed. An apparatus according to aspects of the present invention includes an absorption region including a first type of semiconductor region proximate to a second type of semiconductor region. The first type of semiconductor is to absorb light in a first range of wavelengths and the second type of semiconductor to absorb light in a second range of wavelengths. A multiplication region is defined proximate to and separate from the absorption region. The multiplication region includes an intrinsic semiconductor region in which there is an electric field to multiply the electrons created in the absorption region.Type: GrantFiled: March 15, 2007Date of Patent: September 9, 2014Assignee: Intel CorporationInventors: Michael T. Morse, Olufemi I. Dosunmu, Ansheng Liu, Mario J. Paniccia
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Patent number: 8338857Abstract: A semiconductor waveguide based optical receiver is disclosed. An apparatus according to aspects of the present invention includes an absorption region including a first type of semiconductor region proximate to a second type of semiconductor region. The first type of semiconductor is to absorb light in a first range of wavelengths and the second type of semiconductor to absorb light in a second range of wavelengths. A multiplication region is defined proximate to and separate from the absorption region. The multiplication region includes an intrinsic semiconductor region in which there is an electric field to multiply the electrons created in the absorption region.Type: GrantFiled: August 28, 2010Date of Patent: December 25, 2012Assignee: Intel CorporationInventors: Michael T. Morse, Olufemi I. Dosunmu, Ansheng Liu, Mario J. Paniccia
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Patent number: 8330171Abstract: A single optical receiver having a photo-detector with a wide optical bandwidth and high efficiency within the wide optical bandwidth, the photo-detector comprising: a first diode region of first doping type for receiving light; a second diode region of second doping type and of second thickness; an active region for converting the received light to an electronic signal, the active region having a third thickness and configured to reside between the first diode region and the second diode region; and a reflector coupled to the second diode region and having a silicon layer with a fourth thickness, the silicon layer residing between silicon oxide layers of fifth thicknesses, wherein the active region is configured to absorb the light of wavelengths of less than 900 nm, and wherein the reflector is configured to reflect the light of wavelengths from a range of 1260 nm to 1380 nm.Type: GrantFiled: July 23, 2010Date of Patent: December 11, 2012Assignee: Intel CorporationInventors: Olufemi I. Dosunmu, Ansheng Liu
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Patent number: 8278741Abstract: Sidewall photodetectors for integrated photonic devices and their method of manufacture. An embodiment includes a p-i-n film stack formed on a sidewall of a substrate semiconductor feature having sufficiently large area to accommodate the spot size of a multi-mode fiber. An embodiment includes a first sidewall photodetector coupled to a second sidewall photodetector by a waveguide, the first sidewall photodetector having an i-layer tuned to absorb a first wavelength of light incident to the first sidewall and pass a second wavelength of light to the second sidewall photodetector having an i-layer tuned to absorb the second wavelength.Type: GrantFiled: June 30, 2009Date of Patent: October 2, 2012Assignee: Intel CorporationInventors: Michael T. Morse, Mario J. Paniccia, Olufemi I. Dosunmu
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Publication number: 20120018744Abstract: A single optical receiver having a photo-detector with a wide optical bandwidth and high efficiency within the wide optical bandwidth, the photo-detector comprising: a first diode region of first doping type for receiving light; a second diode region of second doping type and of second thickness; an active region for converting the received light to an electronic signal, the active region having a third thickness and configured to reside between the first diode region and the second diode region; and a reflector coupled to the second diode region and having a silicon layer with a fourth thickness, the silicon layer residing between silicon oxide layers of fifth thicknesses, wherein the active region is configured to absorb the light of wavelengths of less than 900 nm, and wherein the reflector is configured to reflect the light of wavelengths from a range of 1260 nm to 1380 nm.Type: ApplicationFiled: July 23, 2010Publication date: January 26, 2012Inventors: Olufemi I. Dosunmu, Ansheng Liu
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Publication number: 20100327381Abstract: Sidewall photodetectors for integrated photonic devices and their method of manufacture. An embodiment includes a p-i-n film stack formed on a sidewall of a substrate semiconductor feature having sufficiently large area to accommodate the spot size of a multi-mode fiber. An embodiment includes a first sidewall photodetector coupled to a second sidewall photodetector by a waveguide, the first sidewall photodetector having an i-layer tuned to absorb a first wavelength of light incident to the first sidewall and pass a second wavelength of light to the second sidewall photodetector having an i-layer tuned to absorb the second wavelength.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Inventors: Michael T. Morse, Mario J. Paniccia, Olufemi I. Dosunmu
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Publication number: 20100320502Abstract: A semiconductor waveguide based optical receiver is disclosed. An apparatus according to aspects of the present invention includes an absorption region including a first type of semiconductor region proximate to a second type of semiconductor region. The first type of semiconductor is to absorb light in a first range of wavelengths and the second type of semiconductor to absorb light in a second range of wavelengths. A multiplication region is defined proximate to and separate from the absorption region. The multiplication region includes an intrinsic semiconductor region in which there is an electric field to multiply the electrons created in the absorption region.Type: ApplicationFiled: August 28, 2010Publication date: December 23, 2010Inventors: Michael T. Morse, Olufemi I. Dosunmu, Ansheng Liu, Mario J. Paniccia
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Patent number: 7233051Abstract: A semiconductor waveguide based optical receiver is disclosed. An apparatus according to aspects of the present invention includes an absorption region including a first type of semiconductor region proximate to a second type of semiconductor region. The first type of semiconductor is to absorb light in a first range of wavelengths and the second type of semiconductor to absorb light in a second range of wavelengths. A multiplication region is defined proximate to and separate from the absorption region. The multiplication region includes an intrinsic semiconductor region in which there is an electric field to multiply the electrons created in the absorption region.Type: GrantFiled: June 28, 2005Date of Patent: June 19, 2007Assignee: Intel CorporationInventors: Michael T. Morse, Olufemi I. Dosunmu, Ansheng Liu, Mario J. Paniccia