公开(公告)号：US20240302609A1

公开(公告)日：2024-09-12

申请号：US18669500

申请日：2024-05-20

申请人： Ayar Labs, Inc.

发明人： John Fini ,  Anatol Khilo ,  Chen Sun ,  Pavan Bhargava ,  Chandarasekaran Ramamurthy

IPC分类号： G02B6/42 ,  G02B6/293 ,  H04B10/60

CPC分类号： G02B6/4215 ,  G02B6/29335 ,  G02B6/29338 ,  G02B6/2938 ,  G02B6/29395 ,  G02B6/4213 ,  H04B10/60 ,  G02B6/29343

摘要： A first portion of incoming light and a second portion of incoming light travel in opposite directions within a first optical waveguide. A ring resonator in-couples the first portion of incoming light and the second portion of incoming light from the first optical waveguide, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the ring resonator. A second optical waveguide is disposed to in-couple the first portion of incoming light and the second portion of incoming light couple from the ring resonator, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the second optical waveguide away from the ring resonator. One or more photodetector(s) are optically connected to receive the first portion of incoming light and the second portion of incoming light from the second optical waveguide.

公开(公告)号：US20240142303A1

公开(公告)日：2024-05-02

申请号：US18550949

申请日：2021-03-17

申请人： Agency for Science, Technology and Research

发明人： Anmin KONG ,  Shaonan ZHENG ,  Lennon Yao Ting LEE

IPC分类号： G01J3/02 ,  G01J3/12 ,  G01J3/28 ,  G06N3/048 ,  G06N3/084

CPC分类号： G01J3/0259 ,  G01J3/12 ,  G01J3/2803 ,  G06N3/048 ,  G06N3/084 ,  G01J2003/1213 ,  G02B6/29343

摘要： An integrated circuit spectrometer comprises a photonic circuit comprising: an optical input port for receiving light from a light source: and a filter array of filter elements, such as microring resonators, in optical communication with the optical input port. Each microring resonator is characterized by a different series of resonance wavelengths. If alternative filter elements are used, the filter elements may have different filter peaks to each other. The integrated circuit spectrometer also comprises a plurality of detectors, each of which is associated with one of said microring resonators to detect photons from an output of the microring resonator: and at least one processor configured to reconstruct, from signals received at the detectors, an input spectrum of the light received at the optical input port. The input spectrum may be reconstructed by an artificial neural network.

公开(公告)号：US11971589B2

公开(公告)日：2024-04-30

申请号：US17037502

申请日：2020-09-29

申请人： The Regents of the University of California

发明人： Andrew Grieco ,  Abdelkrim El Amili ,  Yeshaiahu Fainman ,  Stephen Pappert

IPC分类号： G02B6/42 ,  G02B6/293 ,  H01S5/00

CPC分类号： G02B6/4215 ,  G02B6/29343 ,  H01S5/0071

摘要： The technology described in this document can be used to implement beam steering in optical systems and photonic devices, to provide a nonmechanical beam steering system for projecting optical energy and controlling the direction of the optical energy using a collection of devices and components that are fixed in position to selectively direct light from an array of different optical emitters at different locations.

公开(公告)号：US20240090102A1

公开(公告)日：2024-03-14

申请号：US18519035

申请日：2023-11-26

申请人： Apple Inc.

发明人： Alfredo Bismuto ,  Yi-Juei Ryan Wu ,  Thomas Schrans ,  Andrea Trita ,  Aaron Zilkie

IPC分类号： H05B47/105 ,  G01J1/02 ,  G01J1/42 ,  G02B6/293 ,  G02B6/42

CPC分类号： H05B47/105 ,  G01J1/0238 ,  G01J1/4228 ,  G02B6/29301 ,  G02B6/29328 ,  G02B6/29343 ,  G02B6/29395 ,  G02B6/4215 ,  G02B6/2935 ,  G02B6/29358 ,  G02B6/2938

摘要： Disclosed herein is an integrated photonics device including a frequency stabilization subsystem for monitoring and/or adjusting the wavelength of light emitted by one or more light sources. The device can include one or more selectors that can combine, select, and/or filter light along one or more light paths, which can include light emitted by a plurality of light sources. Example selectors may include, but are not limited to, an arrayed waveguide grating (AWG), a ring resonator, a plurality of distributed Bragg reflectors (DBRs), a plurality of filters, and the like. Output light paths from the selector(s) can be input into one or more detector(s). The detector(s) can receive the light along the light paths and can generate one or more signals as output signal(s) from the frequency stabilization subsystem. A controller can monitor the wavelength and can adjust or generate control signal(s) for the one or more light sources to lock the monitored wavelength to a target wavelength (or within a targeted range of wavelengths).

公开(公告)号：US11867991B2

公开(公告)日：2024-01-09

申请号：US17944802

申请日：2022-09-14

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Yasuhisa Inada ,  Atsushi Ishikawa ,  Yumiko Kato

IPC分类号： G02F1/133 ,  G02B6/12 ,  G02B6/293 ,  G02B6/35

CPC分类号： G02F1/13312 ,  G02B6/12009 ,  G02B6/29343 ,  G02B6/3546

摘要： An optical scan device includes an optical waveguide array, including a plurality of optical waveguides each of which propagates light along a first direction, that emits a light beam, the plurality of optical waveguides being arranged in a second direction that intersects the first direction, a phase shifter array including a plurality of phase shifters connected separately to each of the plurality of optical waveguides, a control circuit that controls a phase shift amount of each of the plurality of phase shifters and/or inputting of light to each of the plurality of phase shifters and thereby controls a direction and shape of the light beam that is emitted from the optical waveguide array, a photodetector that detects the light beam reflected by a physical object, and a signal processing circuit that generates distance distribution data on the basis of output from the photodetector.

公开(公告)号：US11768153B1

公开(公告)日：2023-09-26

申请号：US17689120

申请日：2022-03-08

申请人： GlobalFoundries U.S. Inc.

发明人： Bartlomiej J. Pawlak ,  Michal Rakowski

IPC分类号： G01N21/31 ,  G02B6/293

CPC分类号： G01N21/31 ,  G02B6/2935 ,  G02B6/29343

摘要： Disclosed is a structure (e.g., a lab-on-chip structure) including a substrate, an insulator layer on the substrate, and at least one optical ring resonator. Each ring resonator includes cladding material on the insulator layer and, embedded within the cladding material, a first waveguide core with an input and an output, and second waveguide core(s) (e.g., ring waveguide core(s)) positioned laterally adjacent to the first waveguide core. A reservoir is below the ring resonator within the insulator layer and substrate such that surfaces of the waveguide cores are exposed within the reservoir. During a sensing operation, the waveguide core surfaces contact with fluid within the reservoir and a light signal at the output of the first waveguide core is monitored (e.g., by a sensing circuit, which in some embodiments is also coupled to a reference optical ring resonator) and used, for example, for spectrum-based target identification and, optionally, characterization.

公开(公告)号：US11698570B2

公开(公告)日：2023-07-11

申请号：US17321077

申请日：2021-05-14

申请人： Psiquantum, Corp.

发明人： Mihai Dorian Vidrighin ,  Damien Bonneau ,  Alessandro Farsi ,  Mark G. Thompson

IPC分类号： G02F1/365 ,  G02F1/35 ,  H04B10/70 ,  G02F1/39 ,  G02B6/293

CPC分类号： G02F1/365 ,  G02F1/3536 ,  H04B10/70 ,  G02B6/29343 ,  G02F1/395 ,  G02F2201/302

摘要： 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.

公开(公告)号：US20230161106A1

公开(公告)日：2023-05-25

申请号：US18157055

申请日：2023-01-19

申请人： Ayar Labs, Inc.

发明人： Pavan Bhargava ,  Derek Van Orden ,  Mark Wade ,  John Fini ,  Chen Sun ,  Milos Popovic ,  Anatol Khilo

IPC分类号： G02B6/293 ,  G02B27/10 ,  G02B6/27 ,  G02B6/42 ,  H04B10/60

CPC分类号： G02B6/29343 ,  G02B6/2934 ,  G02B27/1006 ,  G02B6/2766 ,  G02B6/2773 ,  G02B6/272 ,  G02B6/4213 ,  G02B6/4215 ,  H04B10/60

摘要： An optical input polarization management device includes a polarization splitter and rotator (PSR) that directs a portion of incoming light having a first polarization through a first optical waveguide (OW). The PSR rotates a portion of the incoming light having a second polarization to the first polarization so as to provide polarization-rotated light. The PSR directs the polarization-rotated light through a second OW. Light within the first and second OW's is input to a first two-by-two optical splitter (2×2OS). A first phase shifter (PS) is interfaced with either the first or second OW. Light is output from the first 2×2OS into a third OW and a fourth OW. Light within the third and fourth OW's is input to a second 2×2OS. A second PS is interfaced with either the third or fourth OW. Light is output from the second 2×2OS into a fifth OW for further processing.

公开(公告)号：US09958608B2

公开(公告)日：2018-05-01

申请号：US15627335

申请日：2017-06-19

申请人： Purdue Research Foundation

发明人： Minghao Qi ,  Li Fan ,  Jian Wang ,  Leo Tom Varghese

IPC分类号： G02F1/225 ,  G02B6/122 ,  G02B6/12 ,  G02B6/27 ,  G02B6/293

CPC分类号： G02B6/122 ,  G02B6/12007 ,  G02B6/2746 ,  G02B6/29343

摘要： A method of fabricating an optical device includes forming on a semiconductor substrate a first optical cavity, a second optical cavity, a first light guide and a second light guide. The first light guide has an input, and is optically coupled to the first optical cavity by a first coupling strength. In addition, the first light guide is optically coupled to the second optical cavity by a second coupling strength. The second light guide has an output, and is coupled to the second optical cavity by a third coupling strength. The first coupling strength is greater than the second coupling strength, and the third coupling strength is greater than the second coupling strength.

公开(公告)号：US09921106B1

公开(公告)日：2018-03-20

申请号：US15404476

申请日：2017-01-12

申请人： Northrop Grumman Systems Corporation

发明人： Richard L. Davis

IPC分类号： G01J3/28 ,  H04N5/33 ,  H04N5/378 ,  G01J3/12 ,  G01J3/02 ,  G02B6/293

CPC分类号： G01J3/2823 ,  G01J3/0218 ,  G01J3/0256 ,  G01J3/1895 ,  G02B6/29343

摘要： An integrated imaging spectrometer for hyperspectral imaging (HSI) system is disclosed. The integrated imaging spectrometer features photonic PLCs that include an array of input channel waveguides, one for each pixel of an image scene. Spectral grating filters are positioned along the length of each waveguide to extract the spectral components as the light propagates to the end of the waveguide. The filters route the optical energy to photodetectors and the detected electrical signals are captured by a read out integrated circuit (ROIC). Together the PLC, detectors, and ROIC form an imaging layer. Stacking imaging layers generates a device capable of recording an entire 3D high-resolution spatial/spectral image data cube in real-time.