Patents by Inventor Michael Ayliffe
Michael Ayliffe 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: 10797193Abstract: According to some implementations, an avalanche photodiode may include a photon absorbing layer to absorb photons of an optical beam and to provide a response. The avalanche photodiode may include a gain response layer to provide a gain to the response. The avalanche photodiode may include a bias control structure connected to the gain response layer to control an electric field in the photon absorbing layer and the gain response layer.Type: GrantFiled: January 22, 2019Date of Patent: October 6, 2020Assignee: Lumentum Operations LLCInventors: Alireza Samani, David Plant, Michael Ayliffe
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Patent number: 10409003Abstract: A planar lightwave circuit may include a set of components. The set of components may include an input waveguide to couple to an optical communications transceiver. The set of components may include an output waveguide to couple to the optical communications transceiver. The set of components may include a common port to couple to an optical fiber. The set of components may include a first polarization beam splitter. The set of components may include a second polarization beam splitter. The set of components may include a third polarization beam splitter. The set of components may include a rotator assembly including a Faraday rotator and a quarter-wave plate.Type: GrantFiled: May 31, 2018Date of Patent: September 10, 2019Assignee: Lumentum Operations LLCInventors: Michael Ayliffe, Zhaoming Li
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Publication number: 20190229227Abstract: According to some implementations, an avalanche photodiode may include a photon absorbing layer to absorb photons of an optical beam and to provide a response. The avalanche photodiode may include a gain response layer to provide a gain to the response. The avalanche photodiode may include a bias control structure connected to the gain response layer to control an electric field in the photon absorbing layer and the gain response layer.Type: ApplicationFiled: January 22, 2019Publication date: July 25, 2019Inventors: Alireza SAMANI, David PLANT, Michael AYLIFFE
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Patent number: 10211602Abstract: An optical device may include a semiconductor laser chip to independently generate four laser beams at different wavelengths. Each laser beam, of the four laser beams, may be directed to a respective optical output of the optical device with a sub-micron level of tolerance of each laser beam relative to the respective optical outputs of the optical device, and each laser beam, of the four laser beams, may be associated with a different optical path from the semiconductor laser chip to the respective optical output of the optical device. The optical device may include a lens to receive each of the four laser beams. The lens may be positioned to direct each laser beam, of the four laser beams, toward the respective optical output of the optical device. The optical device may include an optical isolator to receive each of the four laser beams.Type: GrantFiled: June 30, 2017Date of Patent: February 19, 2019Assignee: Lumentum Operations LLCInventors: Michael Ayliffe, Yuliya Akulova, Claude Gamache
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Publication number: 20180284350Abstract: A planar lightwave circuit may include a set of components. The set of components may include an input waveguide to couple to an optical communications transceiver. The set of components may include an output waveguide to couple to the optical communications transceiver. The set of components may include a common port to couple to an optical fiber. The set of components may include a first polarization beam splitter. The set of components may include a second polarization beam splitter. The set of components may include a third polarization beam splitter. The set of components may include a rotator assembly including a Faraday rotator and a quarter-wave plate.Type: ApplicationFiled: May 31, 2018Publication date: October 4, 2018Inventors: Michael AYLIFFE, Zhaoming LI
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Patent number: 9989700Abstract: A planar lightwave circuit may include a set of components. The set of components may include an input waveguide to couple to an optical communications transceiver. The set of components may include an output waveguide to couple to the optical communications transceiver. The set of components may include a common port to couple to an optical fiber. The set of components may include a first polarization beam splitter. The set of components may include a second polarization beam splitter. The set of components may include a third polarization beam splitter. The set of components may include a rotator assembly including a Faraday rotator and a quarter-wave plate.Type: GrantFiled: February 6, 2017Date of Patent: June 5, 2018Assignee: Lumentum Operations LLCInventors: Michael Ayliffe, Zhaoming Li
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Publication number: 20180123321Abstract: An optical device may include a semiconductor laser chip to independently generate four laser beams at different wavelengths. Each laser beam, of the four laser beams, may be directed to a respective optical output of the optical device with a sub-micron level of tolerance of each laser beam relative to the respective optical outputs of the optical device, and each laser beam, of the four laser beams, may be associated with a different optical path from the semiconductor laser chip to the respective optical output of the optical device. The optical device may include a lens to receive each of the four laser beams. The lens may be positioned to direct each laser beam, of the four laser beams, toward the respective optical output of the optical device. The optical device may include an optical isolator to receive each of the four laser beams.Type: ApplicationFiled: June 30, 2017Publication date: May 3, 2018Inventors: Michael AYLIFFE, Yuliya AKULOVA, Claude GAMACHE
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Patent number: 9774172Abstract: An optical device may include a semiconductor laser chip to independently generate four laser beams at different wavelengths. Each laser beam, of the four laser beams, may be directed to a respective optical output of the optical device with a sub-micron level of tolerance of each laser beam relative to the respective optical outputs of the optical device, and each laser beam, of the four laser beams, may be associated with a different optical path from the semiconductor laser chip to the respective optical output of the optical device. The optical device may include a lens to receive each of the four laser beams. The lens may be positioned to direct each laser beam, of the four laser beams, toward the respective optical output of the optical device. The optical device may include an optical isolator to receive each of the four laser beams.Type: GrantFiled: October 28, 2016Date of Patent: September 26, 2017Assignee: Lumentum Operations LLCInventors: Michael Ayliffe, Yuliya Akulova, Claude Gamache
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Patent number: 9341786Abstract: An optomechanical assembly for a photonic chip is disclosed. The optomechanical assembly may include a planar lightwave circuit optically coupled to a plurality of vertical coupling gratings on the photonic chip, to couple light between an optical connector abutting the planar lightwave circuit and the photonic chip.Type: GrantFiled: July 28, 2015Date of Patent: May 17, 2016Assignee: Lumentum Operations LLCInventors: Claude Gamache, Adonios Bitzanis, Michael Ayliffe
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Patent number: 8737778Abstract: The invention relates to an electro-static variable optical attenuator suitable for use in a small form factor pluggable module. A short cladding suppressing fiber, such as a double clad optical fiber, dissipates attenuated light coupled to the cladding to reduce modal interference in the output light, while also reducing PDL and WDL introduced by the off set attenuation mechanism.Type: GrantFiled: December 23, 2011Date of Patent: May 27, 2014Assignee: JDS Uniphase CorporationInventors: Zhongjian Wang, Michael Ayliffe, Qinrong Yu, Niki Liu, Rongtang Fan
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Publication number: 20130163923Abstract: The invention relates to an electro-static variable optical attenuator suitable for use in a small form factor pluggable module. A short cladding suppressing fiber, such as a double clad optical fiber, dissipates attenuated light coupled to the cladding to reduce modal interference in the output light, while also reducing PDL and WDL introduced by the off set attenuation mechanism.Type: ApplicationFiled: December 23, 2011Publication date: June 27, 2013Inventors: Zhongjian Wang, Michael Ayliffe, Qinrong Yu, Niki Liu, Rongtang Fan
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Publication number: 20050135443Abstract: An optical subassembly includes a substrate, a heat spreader, and a submount. The submount has a submount mounting surface and a component mounting surface with either the submount mounting surface or the component mounting surface including an angle. The submount is positioned on either the heat spreader or the substrate such that the component mounting surface is positioned at the angle relative to the substrate. An optoelectric device is positioned on the component mounting surface and coupled to interconnects on the substrate. The optoelectric device is thermally coupled to the heat spreader through the submount to provide a low thermal resistance between the optoelectric device and the heat spreader. An encapsulant structure is mounted on the substrate and hermetically encloses the optoelectric device. The encapsulant structure includes a window positioned to pass light between the optoelectric device and an externally mounted optical fiber.Type: ApplicationFiled: November 23, 2004Publication date: June 23, 2005Inventor: Michael Ayliffe
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Publication number: 20050123237Abstract: An optoelectric subassembly including a receptacle assembly with an optoelectric device mounted therein to define a light axis. The receptacle assembly includes an optical fiber mounting structure defining an opening with an end of an optical fiber received therein. The mounting structure and opening are designed to position the received optical fiber with an end facet substantially perpendicular to the light axis. A first lens is mounted in the receptacle assembly adjacent the optoelectronic device in the light axis and a ball lens is mounted in the receptacle assembly and positioned in the light axis. The ball lens is mounted so as to be in abutting engagement with the facet of an optical fiber inserted into the opening. By forming the ball lens with a diameter equal to the diameter of a mounting ferrule on the end of the fiber and also equal to the diameter of the ferrule receiving opening, the ball lens is self-aligning.Type: ApplicationFiled: November 10, 2004Publication date: June 9, 2005Inventor: Michael Ayliffe