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公开(公告)号：US11617029B2
公开(公告)日：2023-03-28
申请号：US16912308
申请日：2020-06-25
摘要： Waveguide shuffle blocks (WSBs) are provided that may incorporate waveguides routed in any pattern to effectuate many-to-many connectivity between optical cables/fibers or other WSBs connected thereto. Such WSBs may be configured in ways that allow the WSBs to be stacked and to achieve effective optical cable/fiber organization. Moreover, such WSBs may include readable tags that can provide information regarding a particular WSB configuration and/or what optical cables/fibers are connected so that network topology can be discovered and monitored. Some WSBs may be configured as wavelength shifting shuffles (WSSs) that allow a particular wavelength(s) of an optical signal(s) to be routed as desired and/or alter a first wavelength associated with a particular optical signal to a second wavelength. In other embodiments WSSs can be configured to allow for wavelength multiplexing/demultiplexing.
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公开(公告)号：US10530124B2
公开(公告)日：2020-01-07
申请号：US15593072
申请日：2017-05-11
摘要： Examples of the present disclosure include a tunable laser comprising an optical coupler to couple light between a first laser cavity and a second laser cavity. The first laser cavity may extending between the optical coupler and a first reflector and include a first gain section. The second laser cavity may extend between the optical coupler and a second reflector and including a second gain section. At least one of the first laser cavity and the second laser cavity is tunable.
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公开(公告)号：US10439357B2
公开(公告)日：2019-10-08
申请号：US15642752
申请日：2017-07-06
IPC分类号： H01S5/02 , H01S5/14 , H01S5/022 , H01S5/028 , H01S3/106 , H01S5/10 , H01S5/40 , H01S5/00 , H01S5/026 , H01S5/227 , H01S5/32 , H01S5/343
摘要： Examples of the present disclosure include a tunable laser comprising a waveguide including gain section. The waveguide overlies and is optically coupled to another waveguide. The another waveguide has a reflector at one end. A laser cavity is formed in the waveguides.
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公开(公告)号：US20240289600A1
公开(公告)日：2024-08-29
申请号：US18175970
申请日：2023-02-28
CPC分类号： G06N3/067 , G02B6/29343 , G02B6/29382 , G02B6/29395 , G06E3/008
摘要： Systems and methods are provided for general matrix multiplication using wavelength parallel processing of a photonic tensor core. Examples of the systems and methods disclosed herein include encoding a second matrix into a plurality of optical signals based on a plurality of free spectral ranges (FSRs) of an array of resonator structures, the resonator structures having resonances tuned based on a first matrix. The optical signals can be input into input waveguides optically coupled to the array of resonator structures. A third matrix, representative of the first matrix multiplied by the second matrix, can be generated based on optical power output from the array of resonator structures.
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公开(公告)号：US20240184180A1
公开(公告)日：2024-06-06
申请号：US18060903
申请日：2022-12-01
发明人： Yuan Yuan , Stanley Cheung , Yiwei Peng , Zhihong Huang , Marco Fiorentino
CPC分类号： G02F1/225 , G02F1/212 , G02F2203/50
摘要： Example optical devices having a Mach-Zehnder interferometer (MZI) with improved linearity are presented. An example optical device may include an MZI and a microring resonator (MRR) optically coupled to any one of a first optical waveguide arm or a second optical waveguide arm, where the MRR is operable in a resonance state and in an off-resonance state during operation of the optical device. The MZI includes a length difference between the first optical waveguide arm and the second optical waveguide arm thereby achieving a quarter-period phase delay between optical signals of the first optical waveguide arm and the second optical waveguide arm such that a superlinear transmission region of the microring resonator is aligned with peaks of an optical output of the MZI improving linearity of the optical output of the MZI.
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公开(公告)号：US20230408852A1
公开(公告)日：2023-12-21
申请号：US17843352
申请日：2022-06-17
发明人： Stanley Cheung , Geza Kurczveil , Yuan Yuan , Xian Xiao , Raymond G. Beausoleil
IPC分类号： G02F1/017
CPC分类号： G02F1/01708
摘要： Implementations disclosed herein provide for devices and methods for obtaining parity time (PT) symmetric directional couplers through improved phase tuning, along with separate optical gain and optical loss tuning. The present disclosure integrates phase tuning and optical gain/loss tuning structures into waveguides of directional couplers disclosed herein. In some examples, directional couplers disclosed herein integrate one or more hybrid metal-oxide-semiconductor capacitors (MOSCAPs) formed by a dielectric layer between two semiconductor layers that provide for phase tuning via plasma dispersion and/or carrier accumulation depending on voltage bias polarity, and one or more optically active medium that provide for optical gain or loss tuning depending on voltage bias polarity.
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公开(公告)号：US20220091446A1
公开(公告)日：2022-03-24
申请号：US16948579
申请日：2020-09-24
发明人： Stanley Cheung , Di Liang , Sudharsanan Srinivasan
IPC分类号： G02F1/025
摘要： Examples described herein relate to an optical coupler. The optical coupler may include a first optical waveguide base layer, a second optical waveguide base layer, an insulating layer disposed over at least a portion of both the first optical waveguide base layer and the second optical waveguide base layer, and a semiconductor material layer disposed over the insulating layer. Overlapping portions of the first optical waveguide base layer, the insulating layer, and the semiconductor material layer form a first optical waveguide, and overlapping portions of the second optical waveguide base layer, the insulating layer, and the semiconductor material layer form a second optical waveguide. Moreover, the optical coupler may include a plurality of metal contacts to receive one or more first biasing voltages to operate one of the first optical waveguide base layer and the second optical waveguide base layer in an accumulation mode.
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公开(公告)号：US20240296320A1
公开(公告)日：2024-09-05
申请号：US18178094
申请日：2023-03-03
发明人： Yiwei Peng , Yuan Yuan , Stanley Cheung , Wayne Victor Sorin , Marco Fiorentino
摘要： An example microring resonator (MRR) based optical device having improved linearity is presented. The optical device includes a first MRR and a first bus waveguide optically coupled to the first MRR. Further, the optical device includes a second MRR optically coupled to the first MRR, and a second bus waveguide optically coupled to the second MRR. The first MRR and the second MRR are formed between the first bus waveguide and the second bus waveguide. The optical coupling between the first MRR and the second MRR increases the linearity in the optical output of the optical device.
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公开(公告)号：US11953766B2
公开(公告)日：2024-04-09
申请号：US17843352
申请日：2022-06-17
发明人： Stanley Cheung , Geza Kurczveil , Yuan Yuan , Xian Xiao , Raymond G. Beausoleil
IPC分类号： G02F1/017
CPC分类号： G02F1/01708
摘要： Implementations disclosed herein provide for devices and methods for obtaining parity time (PT) symmetric directional couplers through improved phase tuning, along with separate optical gain and optical loss tuning. The present disclosure integrates phase tuning and optical gain/loss tuning structures into waveguides of directional couplers disclosed herein. In some examples, directional couplers disclosed herein integrate one or more hybrid metal-oxide-semiconductor capacitors (MOSCAPs) formed by a dielectric layer between two semiconductor layers that provide for phase tuning via plasma dispersion and/or carrier accumulation depending on voltage bias polarity, and one or more optically active medium that provide for optical gain or loss tuning depending on voltage bias polarity.
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公开(公告)号：US20240036365A1
公开(公告)日：2024-02-01
申请号：US17815403
申请日：2022-07-27
发明人： Yiwei Peng , Yuan Yuan , Stanley Cheung , Zhihong Huang
CPC分类号： G02F1/025 , G02B6/12004 , G02B6/34
摘要： Examples described herein relate to an optical device that entails phase shifting an optical signal. The optical device includes an optical waveguide having a first semiconductor material region and a second semiconductor material region formed adjacent to each other and defining a junction therebetween. Further, the optical device includes an insulating layer formed on top of the optical waveguide. Moreover, the optical device includes a III-V semiconductor layer formed on top of the insulating layer causing an optical mode of an optical signal passing through the optical waveguide to overlap with the first semiconductor material region, the second semiconductor material region, the insulating layer, and the III-V semiconductor layer thereby resulting in a phase shift in the optical signal passing through the optical waveguide.
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