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公开(公告)号：US20210191047A1
公开(公告)日：2021-06-24
申请号：US17013203
申请日：2020-09-04
Applicant: PSIQUANTUM CORP.
Inventor： Naomi NICKERSON , Damien BONNEAU , Terence RUDOLPH
Abstract: A device includes a plurality of photon sources coupled to a plurality of output terminals. The plurality of photon sources are coupled together, by a first switch layer, into a plurality of photon source groups. The first switch layer comprises a plurality of switches. The device further includes a second switch layer coupled to output terminals of the first switch layer. The second switch layer includes a plurality of second layer n-by-n switches and a plurality of second layer l-by-l switches, wherein l is less than n. At least two output terminals from two respective photon sources residing within a first photon source group of the plurality of photon source groups and a second photon source group of the plurality of photon source groups are coupled directly to respective output terminals of the device without being coupled to any intervening second switch from the second switch layer.
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公开(公告)号：US11029203B2
公开(公告)日：2021-06-08
申请号：US16544718
申请日：2019-08-19
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Syrus Ziai
Abstract: An electronic device includes a first superconducting wire (with a first end and a second end) having a first threshold superconducting current. The device includes a second superconducting wire (with a first end and a second end) having a second threshold superconducting current that is less than the first threshold superconducting current. The second end of the first superconducting wire and the second end of the second superconducting wire are coupled to a common voltage node. A resistor is coupled between the first superconducting wire and the second superconducting wire, with a first end of the resistor coupled to the first end of the first superconducting wire and a second end of the resistor coupled to the first end of the second superconducting wire. The device includes a current source coupled with the first superconducting wire, and coupled with a combination of the resistor and the second superconducting wire.
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123.发明授权公开(公告)号：US10944038B2
公开(公告)日：2021-03-09
申请号：US16792095
申请日：2020-02-14
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
IPC: H01L39/10 , H01L31/00 , H01L39/22 , H01L39/18 , G01J1/44 , H01L31/0224 , H01L31/113 , H01L39/16 , H01L29/43 , H01L29/786 , H01L39/14 , G01J1/42
Abstract: A photon source includes a photo-pair generator and a detection device. The photo-pair generator is configured to generate a photon-pair in receiving an input signal. A first photon of the photon-pair is output from the photon source via a first optical path. The detection device is configured to receive a second photon of the photon-pair. The detection device includes a transistor that has a semiconducting component that is a source and a drain of the transistor, and a superconducting component that is adjacent to the semiconducting component and is a gate of the transistor. The transistor is configured to transition from an off state to an on state in response a photon being incident upon the detection device.
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公开(公告)号：US20200371287A1
公开(公告)日：2020-11-26
申请号：US16599526
申请日：2019-10-11
Applicant: Psiquantum, Corp.
Inventor： Koustuban Ravi , Mark Thompson , Eric Dudley
Abstract: A Mach-Zehnder interferometer (MZI) filter comprising one or more passive compensation structures are described. The passive compensation structures yield MZI filters that are intrinsically tolerant to perturbations in waveguide dimensions and/or other ambient conditions. The use of n+1 waveguide widths can mitigate n different sources of perturbation to the filter. The use of at least three different waveguide widths for each Mach-Zehnder waveguide can alleviate sensitivity of filter performance to random width or temperature variations. A tolerance compensation portion is positioned between a first coupler section and a second coupler section, wherein the tolerance compensation portion includes a first compensation section having a second width, a second compensation section having a third width and a third compensation section having a fourth width, wherein the fourth width is greater than the third width and the third width is greater than the second width.
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125.发明申请公开(公告)号：US20200321507A1
公开(公告)日：2020-10-08
申请号：US16792095
申请日：2020-02-14
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
IPC: H01L39/10 , H01L31/00 , H01L39/22 , H01L39/18 , G01J1/44 , H01L31/0224 , H01L31/113 , H01L39/16 , H01L29/43 , H01L29/786 , H01L39/14
Abstract: A photon source includes a photo-pair generator and a detection device. The photo-pair generator is configured to generate a photon-pair in receiving an input signal. A first photon of the photon-pair is output from the photon source via a first optical path. The detection device is configured to receive a second photon of the photon-pair. The detection device includes a transistor that has a semiconducting component that is a source and a drain of the transistor, and a superconducting component that is adjacent to the semiconducting component and is a gate of the transistor. The transistor is configured to transition from an off state to an on state in response a photon being incident upon the detection device.
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Patent Agency Ranking
公开(公告)号：US20200287631A1
公开(公告)日：2020-09-10
申请号：US16621994
申请日：2019-03-22
Applicant: PSIQUANTUM CORP.
Inventor： Mercedes GIMENO-SEGOVIA , Terence G. RUDOLPH
Abstract: A method includes receiving Bell pairs. Photons are obtained in a Greenberger-Hom-Zeilinger (GHZ) state by providing, to a first beam splitter, a photon from a first Bell pair and a photon from a second Bell pair. The first beam splitter is coupled with a first output channel and a second output channel. Obtaining the photons in the GHZ state further includes providing, to a second beam splitter, a photon from a third Bell pair and a photon from a fourth Bell pair. The second beam splitter is coupled with a third output channel arid a fourth output channel. Obtaining the photons in the GHZ state further includes providing a photon output from the second output channel as a first input to a detector and a photon output in the third output channel a second input to the first detector.
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公开(公告)号：US10747085B1
公开(公告)日：2020-08-18
申请号：US16503993
申请日：2019-07-05
Applicant: PsiQuantum Corp.
Inventor： Mihai Vidrighin , Nikhil Kumar , Gary Gibson
Abstract: An optical switch device includes a first semiconductor structure configured to operate as a first waveguide and a second semiconductor structure configured to operate as a second waveguide. The second semiconductor structure is located above or below the first semiconductor structure and separated from the first semiconductor structure. The second semiconductor structure includes a first portion having a first width and a second portion having a width different from the first width and located on the first portion. The first portion is located between a first doped region and a second doped region.
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公开(公告)号：US20190323886A1
公开(公告)日：2019-10-24
申请号：US16450911
申请日：2019-06-24
Applicant: PsiQuantum Corp.
Inventor： Mark Thompson , Faraz Najafi
Abstract: The various embodiments described herein include methods, devices, and systems for fabricating and operating superconducting photon detectors. In one aspect, a photon detector includes: (1) a first waveguide configured to guide photons from a photon source; (2) a second waveguide that is distinct and separate from the first waveguide and optically-coupled to the first waveguide; and (3) a superconducting component positioned adjacent to the second waveguide and configured to detect photons within the second waveguide.
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公开(公告)号：US10372014B1
公开(公告)日：2019-08-06
申请号：US16192770
申请日：2018-11-15
Applicant: Psiquantum, Corp.
Inventor： Mihai Dorian Vidrighin , Damien Bonneau , Alessandro Farsi , Mark G. Thompson
Abstract: Techniques disclosed herein relate to photon sources with high spectral purity and high brightness. In one embodiment, a photon-pair source includes a pump waveguide, a first resonator coupled to the pump waveguide to couple pump photons from the pump waveguide into the first resonator, a second resonator coupled to the first resonator, and an output waveguide coupled to the second resonator. The second resonator is configured to convert the pump photons into photon pairs. The second resonator and the first resonator are configured to cause a coupling-induced resonance splitting in the second resonator or the first resonator. The second resonator and the output waveguide are configured to couple the photon pairs from the second resonator into the output waveguide. In some embodiments, the photo-pair source includes one or more tuners for tuning at least one of the first resonator or the second resonator.
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公开(公告)号：US20190196100A1
公开(公告)日：2019-06-27
申请号：US16231022
申请日：2018-12-21
Applicant: PsiQuantum Corp.
Inventor： Naomi Nickerson , Damien Bonneau , Terence Rudolph
Abstract: A device (e.g., a photonic multiplexer) is provided that includes a plurality of first switches. Each first switch in the plurality of first switches includes a plurality of first channels. Each first switch is configured to shift photons in the plurality of first channels by zero or more channels, based on first configuration information provided to the first switch. The device further includes a plurality of second switches. Each second switch includes a plurality of second channels. Each second channel is coupled with a respective first channel from a distinct first switch of the plurality of first switches. Each second switch is configured to shift photons in the plurality of second channels by zero or more channels, based on second configuration information provided to the second switch.
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