Patents by Inventor Thomas Pierre SCHRANS
Thomas Pierre SCHRANS 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: 20230359069Abstract: A photonic chip. In some embodiments, the photonic chip includes a waveguide; and an optically active device comprising a portion of the waveguide. The waveguide may have a first end at a first edge of the photonic chip; and a second end, and the waveguide may have, everywhere between the first end and the second end, a rate of change of curvature having a magnitude not exceeding 2,000/mm2.Type: ApplicationFiled: May 15, 2023Publication date: November 9, 2023Inventors: Abu THOMAS, Albert BENZONI, Jacob LEVY, Thomas Pierre SCHRANS, Andrea TRITA, Guomin YU, Aaron John ZILKIE
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Publication number: 20230280532Abstract: An optoelectronic device. The device comprising: an input waveguide, which receives an optical signal; a multistage photodiode detector, comprising a plurality of photodiode elements connected in series, one of the photodiode elements of the plurality of photodiode elements being connected to the input waveguide and configured to receive the optical signal therefrom; and a first electrode and a second electrode, wherein the first electrode is connected to a first contact of each of the plurality of photodiode elements, and the second electrode is connected to a second contact of each of the plurality of photodiode elements.Type: ApplicationFiled: November 16, 2022Publication date: September 7, 2023Inventors: Thomas Pierre SCHRANS, Amit Singh NAGRA, Albert BENZONI, Andrew George RICKMAN
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Patent number: 11681167Abstract: A photonic chip. In some embodiments, the photonic chip includes a waveguide; and an optically active device comprising a portion of the waveguide. The waveguide may have a first end at a first edge of the photonic chip; and a second end, and the waveguide may have, everywhere between the first end and the second end, a rate of change of curvature having a magnitude not exceeding 2,000/mm2.Type: GrantFiled: June 16, 2021Date of Patent: June 20, 2023Assignee: Rockley Photonics LimitedInventors: Abu Thomas, Albert Benzoni, Jacob Levy, Thomas Pierre Schrans, Andrea Trita, Guomin Yu, Aaron John Zilkie
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Publication number: 20230058741Abstract: A demultiplexer for use in a wavelength division multiplexed system. The demultiplexer comprises: an input waveguide, configured to receive a wavelength division multiplexed signal; a demultiplexing element, configured to demultiplex the multiplexed signal received from the input waveguide into a plurality of multi-mode demultiplexed signal components; a multi-mode output waveguide, the multi-mode output waveguide being coupled to the demultiplexing element and configured to receive one of the multi-mode demultiplexed signal components; and a splitter, coupled to the multi-mode output waveguide, and configured to split the received multi-mode demultiplexed signal component into two single-mode outputs.Type: ApplicationFiled: January 22, 2021Publication date: February 23, 2023Inventors: Thomas Pierre SCHRANS, Andrea TRITA, Adam SCOFIELD
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Publication number: 20220404650Abstract: An optical modulator. The optical modulator comprising: a micro-ring resonator; and a bus waveguide, including an input waveguide region, an output waveguide region, and a coupling waveguide region optically coupled to the micro-ring resonator and located between the input waveguide region and the output waveguide region. The micro-ring resonator includes a modulation region, the modulation region being formed of a silicon portion and a III-V semiconductor portion separated by a crystalline rare earth oxide dielectric layer.Type: ApplicationFiled: August 25, 2020Publication date: December 22, 2022Inventors: Adam SCOFIELD, Aaron John ZILKIE, Guomin YU, Thomas Pierre SCHRANS, David John THOMSON, Weiwei ZHANG
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Publication number: 20220299836Abstract: An electro-optical modulator. The electro-optical modulator comprising: an input waveguide, configured to guide light into a modulation region of the electro-optical modulator; a plurality of sub-modulators, within the modulation region, each sub-modulator having a transfer function between an applied voltage and an optical phase shift; and an output waveguide, configured to guide light out of the modulation region. The combination of the transfer functions of each sub-modulator is such that a total transfer function between an applied voltage and an optical phase shift of the modulation region is substantially linear over a range of operating voltages.Type: ApplicationFiled: August 25, 2020Publication date: September 22, 2022Inventors: Adam SCOFIELD, Thomas Pierre SCHRANS, Aaron John ZILKIE
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Publication number: 20220283308Abstract: An imaging component for receiving light, the imaging component comprising a photonic integrated circuit, PIC, receiver, a slab, a wedge, and a lens the wedge having a front surface and an opposing back surface, the imaging component arranged to define a receiving optical path through the front surface of the wedge, the receiving optical path continuing through the wedge and through the slab to the PIC receiver, the lens being configured to focus light of the receiving optical path onto the PIC receiver.Type: ApplicationFiled: February 6, 2020Publication date: September 8, 2022Inventors: Thomas Pierre SCHRANS, Andrew George RICKMAN
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Publication number: 20220262962Abstract: An optoelectronic module. In some embodiments, the optoelectronic module includes a substrate; a digital integrated circuit, on an upper surface of the substrate; a photonic integrated circuit, secured in a pocket of the substrate, the pocket being in the upper surface of the substrate; and an analog integrated circuit, on the photonic integrated circuit.Type: ApplicationFiled: April 28, 2022Publication date: August 18, 2022Inventors: Gerald Cois BYRD, Thomas Pierre SCHRANS, Chia-Te CHOU, Arin ABED, Omar James BCHIR, Erman TIMURDOGAN, Aaron John ZILKIE
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Publication number: 20220128666Abstract: A LiDAR transmitter photonic integrated circuit (PIC) for scanning an environment over a field of view, FOV, the FOV having an azimuthal angular range and a polar angular range, the LiDAR transmitter PIC comprising: a light source for providing light from at least one laser, an optical switch having an input and a plurality of outputs, the optical switch being configured to selectively direct light received at the input to one of the plurality of outputs, and a light emitting component having a plurality of inputs and a plurality of emitters, the light emitting component configured to selectively emit beams over a plurality of emission angles having different respective polar components within the polar angular range of the FOV, wherein the light source is coupled to the input of the optical switch and each of the plurality of outputs of the optical switch is coupled to a respective one of the plurality of inputs of the light emitting component.Type: ApplicationFiled: February 6, 2020Publication date: April 28, 2022Inventors: Thomas Pierre SCHRANS, Andrew George RICKMAN, Hooman ABEDIASL
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Publication number: 20220109075Abstract: An optoelectronic module. In some embodiments, the optoelectronic module includes: a substrate; a digital integrated circuit, on an upper surface of the substrate; and a frame, secured in a pocket of the substrate. The pocket is in a lower surface of the substrate, and the substrate includes an insulating layer, and a plurality of conductive traces.Type: ApplicationFiled: December 14, 2021Publication date: April 7, 2022Inventors: Gerald Cois BYRD, Thomas Pierre SCHRANS, Chia-Te CHOU, Arin ABED, Omar James BCHIR
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Publication number: 20220077950Abstract: A wavelength-division multiplexing, WDM, receiver, comprising: an input waveguide; and a demultiplexer, connected to the input waveguide. The demultiplexer is configured to: demultiplex a signal received from the input waveguide into a plurality of separate signals, one or more of the separate signals having multiple optical modes, and output each of the plurality of separate signals into respective output waveguides, connected to respective output ports of the demultiplexer. At least one output waveguide, configured to carry one of the separate signals having multiple optical modes, is connected to a respective mode rotator, the or each mode rotator being configured to rotate the multiple optical modes of the respective separate signal received therein. The or each mode rotator is connected to a respective waveguide photodiode, configured to generate a photocurrent from the separate signal received from the respective mode rotator.Type: ApplicationFiled: December 18, 2019Publication date: March 10, 2022Inventors: Thomas Pierre SCHRANS, Andrew George RICKMAN
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Patent number: 11239377Abstract: An optoelectronic module. In some embodiments, the optoelectronic module includes: a substrate; a digital integrated circuit, on an upper surface of the substrate; and a frame, secured in a pocket of the substrate. The pocket is in a lower surface of the substrate, and the substrate includes an insulating layer, and a plurality of conductive traces.Type: GrantFiled: August 6, 2018Date of Patent: February 1, 2022Assignee: Rockley Photonics LimitedInventors: Gerald Cois Byrd, Thomas Pierre Schrans, Chia-Te Chou, Arin Abed, Omar James Bchir
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Patent number: 11209679Abstract: A photonic integrated circuit, an optoelectronic modulator, and a method of modulating light in a photonic integrated circuit are provided. The photonic integrated circuit comprises: an input waveguide which, in use, receives light in a superposition of two polarisation modes of the waveguide; a polarisation splitter, connected to the input waveguide, and configured to provide, at a first output, light in a first polarisation mode of the two polarisation modes of the waveguide and, at a second output, light in a second polarisation mode of the two polarisation modes of the waveguide; a first polarisation rotator, connected to the first output of the polarisation splitter, and configured to rotate light received therefrom from the first polarisation mode to the second polarisation mode; an optoelectronic modulator, having a first modulation waveguide connected to the first polarisation rotator and a second modulation waveguide connected to the second output of the polarisation splitter.Type: GrantFiled: October 29, 2019Date of Patent: December 28, 2021Assignee: Rockley Photonics LimitedInventors: Thomas Pierre Schrans, Dong Yoon Oh, Aaron John Zilkie
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Publication number: 20210311333Abstract: A photonic chip. In some embodiments, the photonic chip includes a waveguide; and an optically active device comprising a portion of the waveguide. The waveguide may have a first end at a first edge of the photonic chip; and a second end, and the waveguide may have, everywhere between the first end and the second end, a rate of change of curvature having a magnitude not exceeding 2,000/mm2.Type: ApplicationFiled: June 16, 2021Publication date: October 7, 2021Inventors: Abu THOMAS, Albert BENZONI, Jacob LEVY, Thomas Pierre SCHRANS, Andrea TRITA, Guomin YU, Aaron John ZILKIE
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Patent number: 11079547Abstract: An optical device. In some embodiments, the optical device includes a first interface; a second interface; a first plurality of waveguides, at the first interface; a second plurality of waveguides, at the second interface; and a free propagation region. A first waveguide of the first plurality of waveguides has a width at least 20% greater than a second waveguide of the first plurality of waveguides.Type: GrantFiled: August 16, 2018Date of Patent: August 3, 2021Assignee: Rockley Photonics LimitedInventors: Andrea Trita, Thomas Pierre Schrans
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Patent number: 10962718Abstract: A reconfigurable spectroscopy system comprises tunable lasers and wavelength lockers to lock to accurate reference wavelengths. Band combiners with differently optimized wavelength ranges multiplex the optical signal over the time domain, to emit a plurality of reference wavelengths for spectroscopy applications. The power requirements are greatly reduced by multiplexing over the time domain in time slots which do not affect sampling and receiving of the spectroscopy data.Type: GrantFiled: May 5, 2020Date of Patent: March 30, 2021Assignee: ROCKLEY PHOTONICS LIMITEDInventors: Hooman Abediasl, Amit Singh Nagra, Andrew George Rickman, Thomas Pierre Schrans, Pradeep Srinivasan, Andrea Trita, Aaron John Zilkie
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Patent number: 10877217Abstract: A system and method for packing optical and electronic components. A module includes an electronic integrated circuit and a plurality of photonic integrated circuits, connected to the electronic integrated circuit by wire bonds or by wire bonds and other conductors. A metal cover of the module is in thermal contact with the electronic integrated circuit and facilitates extraction of heat from the electronic integrated circuit. Arrays of optical fibers are connected to the photonic integrated circuits.Type: GrantFiled: July 8, 2019Date of Patent: December 29, 2020Assignee: Rockley Photonics LimitedInventors: Gerald Cois Byrd, David Arlo Nelson, Javid Messian, Thomas Pierre Schrans, Chia-Te Chou, Karlheinz Muth
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Publication number: 20200264377Abstract: A reconfigurable spectroscopy system comprises tunable lasers and wavelength lockers to lock to accurate reference wavelengths. Band combiners with differently optimized wavelength ranges multiplex the optical signal over the time domain, to emit a plurality of reference wavelengths for spectroscopy applications. The power requirements are greatly reduced by multiplexing over the time domain in time slots which do not affect sampling and receiving of the spectroscopy data.Type: ApplicationFiled: May 5, 2020Publication date: August 20, 2020Inventors: Hooman ABEDIASL, Amit Singh NAGRA, Andrew George RICKMAN, Thomas Pierre SCHRANS, Pradeep SRINIVASAN, Andrea TRITA, Aaron John ZILKIE
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Patent number: 10677989Abstract: A reconfigurable spectroscopy system comprises tunable lasers and wavelength lockers to lock to accurate reference wavelengths. Band combiners with differently optimized wavelength ranges multiplex the optical signal over the time domain, to emit a plurality of reference wavelengths for spectroscopy applications. The power requirements are greatly reduced by multiplexing over the time domain in time slots which do not affect sampling and receiving of the spectroscopy data.Type: GrantFiled: July 3, 2018Date of Patent: June 9, 2020Assignee: ROCKLEY PHOTONICS LIMITEDInventors: Hooman Abediasl, Andrew George Rickman, Amit Singh Nagra, Andrea Trita, Thomas Pierre Schrans, Aaron John Zilkie, Pradeep Srinivasan
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Publication number: 20200133034Abstract: A photonic integrated circuit, an optoelectronic modulator, and a method of modulating light in a photonic integrated circuit are provided. The photonic integrated circuit comprises: an input waveguide which, in use, receives light in a superposition of two polarisation modes of the waveguide; a polarisation splitter, connected to the input waveguide, and configured to provide, at a first output, light in a first polarisation mode of the two polarisation modes of the waveguide and, at a second output, light in a second polarisation mode of the two polarisation modes of the waveguide; a first polarisation rotator, connected to the first output of the polarisation splitter, and configured to rotate light received therefrom from the first polarisation mode to the second polarisation mode; an optoelectronic modulator, having a first modulation waveguide connected to the first polarisation rotator and a second modulation waveguide connected to the second output of the polarisation splitter.Type: ApplicationFiled: October 29, 2019Publication date: April 30, 2020Inventors: Thomas Pierre Schrans, Dong Yoon Oh, Aaron John Zilkie