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公开(公告)号：US20240134243A1
公开(公告)日：2024-04-25
申请号：US18384802
申请日：2023-10-26
Applicant: Psiquantum, Corp.
Inventor： Chia-Ming Chang , Hung-Hsi Lin , Gary Gibson
IPC: G02F1/225
CPC classification number: G02F1/2257 , G02F1/212 , G02F2203/50
Abstract: A waveguide structure includes a substrate and a waveguide core coupled to the substrate and including a first material characterized by a first index of refraction and a first electro-optic coefficient. The waveguide structure also includes a first cladding layer at least partially surrounding the waveguide core and including a second material characterized by a second index of refraction less than the first index of refraction and a second electro-optic coefficient greater than the first electro-optic coefficient. The second cladding layer is coupled to the first cladding layer.
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公开(公告)号：US11841559B2
公开(公告)日：2023-12-12
申请号：US18112415
申请日：2023-02-21
Applicant: Psiquantum, Corp.
Inventor： Chia-Ming Chang , Hung-Hsi Lin , Gary Gibson
CPC classification number: G02F1/2257 , G02F1/212 , G02F2203/50
Abstract: An optical switch structure includes at least one optical input port and at least one optical output port. The optical switch structure also includes an optical waveguide structure including a waveguide core and a waveguide cladding The optical waveguide structure is optically coupled to the at least one optical input port and the at least one optical output port. The waveguide core includes a first material characterized by a first index of refraction and a first electro-optic coefficient and the waveguide cladding includes a second material characterized by a second index of refraction less than the first index of refraction and a second electro-optic coefficient greater than the first electro-optic coefficient.
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公开(公告)号：US11817400B2
公开(公告)日：2023-11-14
申请号：US17377131
申请日：2021-07-15
Applicant: Psiquantum, Corp.
Inventor： Yong Liang , Vimal Kumar Kamineni , Chia-Ming Chang , James McMahon
CPC classification number: H01L23/562 , H01L21/02186 , H01L27/1203
Abstract: In some embodiments method comprises depositing a ferroelectric layer on a top surface of a semiconductor wafer and forming one or more gaps in the ferroelectric layer. The one or more gaps can be formed on a repetitive spacing to relieve stresses between the ferroelectric layer and the semiconductor wafer. A first dielectric layer is deposited over the ferroelectric layer and the first dielectric layer is planarized to fill in the gaps. A second dielectric layer is formed between the ferroelectric layer and the semiconductor wafer. The second dielectric layer can be formed by annealing the wafer in an oxidizing atmosphere such that an upper portion of the semiconductor substrate forms an oxide layer between the semiconductor substrate and the ferroelectric layer.
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公开(公告)号：US20250068001A1
公开(公告)日：2025-02-27
申请号：US18943708
申请日：2024-11-11
Applicant: PsiQuantum Corp.
Inventor： Chia-Ming Chang
Abstract: The various embodiments described herein include a phase shifter that can have a first electrode that has a distributed shape. The phase shifter can include a second electrode. The phase shifter can include an optical waveguide between the first electrode and the second electrode. Further, the phase shifter can include an active electro-optical material that propagates light, and phase shifts the light.
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公开(公告)号：US20240201525A1
公开(公告)日：2024-06-20
申请号：US18544220
申请日：2023-12-18
Applicant: Psiquantum, Corp.
Inventor： Yong Liang , Mark G. Thompson , Chia-Ming Chang , Vimal Kumar Kamineni
CPC classification number: G02F1/035 , G02F1/225 , G02B2006/12142
Abstract: A system includes a classical computing system and one or more quantum computing chips coupled to the classical computing system. The one or more quantum computing chips includes one or more electro-optic devices. Each electro-optic device includes a substrate, a waveguide disposed on top of the substrate, and a layer stack disposed on top of the waveguide and including a plurality of electro-optic material layers interleaved with a plurality of interlayers. Each electro-optic device further comprising a waveguide core disposed on top of a portion of the layer stack. The plurality of interlayers are characterized by a first lattice structure and the plurality of electro-optic material layers are under tensile stress and are characterized by a second lattice structure and crystallographic phase.
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Patent Agency Ranking
公开(公告)号：US11226507B2
公开(公告)日：2022-01-18
申请号：US17083141
申请日：2020-10-28
Applicant: PSIQUANTUM, CORP.
Inventor： Yong Liang , Mark G. Thompson , Chia-Ming Chang , Vimal Kumar Kamineni
Abstract: An electro-optic device includes a substrate and a waveguide on the substrate. The waveguide includes a layer stack including a plurality of electro-optic material layers interleaved with a plurality of interlayers, a waveguide core adjacent to the layer stack, a waveguide cladding layer, and a pair of electrodes in electrical contact with the plurality of electro-optic material layers. The plurality of interlayers maintains a first lattice structure at room temperature and a cryogenic temperature. The plurality of electro-optic material layers maintains a second lattice structure and crystallographic phase at the room temperature and the cryogenic temperature.
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公开(公告)号：US20200301238A1
公开(公告)日：2020-09-24
申请号：US16697704
申请日：2019-11-27
Applicant: Psiquantum, Corp.
Inventor： Chia-Ming Chang , Hung-Hsi Lin , Gary Gibson
IPC: G02F1/225
Abstract: An optical switch structure includes a substrate, a first electrical contact, and a first material having a first conductivity type electrically connected to the first electrical contact. The optical switch structure also includes a second material having a second conductivity type coupled to the first material, a second electrical contact electrically connected to the second material, and a waveguide structure disposed between the first electrical contact and the second electrical contact. The waveguide structure includes a waveguide core coupled to the substrate and including a first material characterized by a first index of refraction and a first electro-optic coefficient and a waveguide cladding at least partially surrounding the waveguide core and including a second material characterized by a second index of refraction less than the first index of refraction and a second electro-optic coefficient greater than the first electro-optic coefficient.
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公开(公告)号：US12242165B2
公开(公告)日：2025-03-04
申请号：US18384802
申请日：2023-10-27
Applicant: Psiquantum, Corp.
Inventor： Chia-Ming Chang , Hung-Hsi Lin , Gary Gibson
Abstract: A waveguide structure includes a substrate and a waveguide core coupled to the substrate and including a first material characterized by a first index of refraction and a first electro-optic coefficient. The waveguide structure also includes a first cladding layer at least partially surrounding the waveguide core and including a second material characterized by a second index of refraction less than the first index of refraction and a second electro-optic coefficient greater than the first electro-optic coefficient. The second cladding layer is coupled to the first cladding layer.
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公开(公告)号：US20250068026A1
公开(公告)日：2025-02-27
申请号：US18943551
申请日：2024-11-11
Applicant: PsiQuantum Corp.
Inventor： Hugo V. Cable , Damien Bonneau , Hsuan-Tung Peng , Bryan S. Park , Andrzej Perez Veitia , Sara Bartolucci , Eric Dudley , Chia-Ming Chang , Mihai Vidrighin
Abstract: An example integrated generalized Mach-Zehnder Interferometer (GMZI) to process a quantum state of light is described. A quantum state of light comprising one or more photons can be received by a first coupler network in the GMZI. Using the first coupler network, the quantum state of light is distributed to one or more of a plurality of waveguide arms in the GMZI. The phase of the quantum state of light is adjusted using a plurality of phase shifters in the GMZI. The phase is adjusted for portions of the quantum state of light in one of the plurality of waveguide arms. The phase-adjusted quantum light is received by a second coupler network in the GMZI. Using the second coupler network, the quantum state of light is combined onto one or more outputs of the waveguide arms. The combined quantum light is outputted.
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公开(公告)号：US12189266B2
公开(公告)日：2025-01-07
申请号：US18384802
申请日：2023-10-27
Applicant: Psiquantum, Corp.
Inventor： Chia-Ming Chang , Hung-Hsi Lin , Gary Gibson
Abstract: A waveguide structure includes a substrate and a waveguide core coupled to the substrate and including a first material characterized by a first index of refraction and a first electro-optic coefficient. The waveguide structure also includes a first cladding layer at least partially surrounding the waveguide core and including a second material characterized by a second index of refraction less than the first index of refraction and a second electro-optic coefficient greater than the first electro-optic coefficient. The second cladding layer is coupled to the first cladding layer.
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