公开(公告)号：US11794652B2

公开(公告)日：2023-10-24

申请号：US17232582

申请日：2021-04-16

申请人： GENTEX CORPORATION

发明人： Mario F. Saenger Nayver ,  George A. Neuman ,  John S. Anderson ,  Yuping Lin ,  Eric A. Gobrogge

IPC分类号： G02F1/015 ,  B60R1/08 ,  B60R1/12 ,  G06V40/18

CPC分类号： B60R1/088 ,  B60R1/12 ,  G02F1/0154 ,  G06V40/18 ,  B60R2001/1253

摘要： An electro-optic element having multiple regions is disclosed. The electro-optic element comprises an electro-optic medium disposed between two electrodes. Further, the electro-optic medium is operable between activated and un-activated states based, at least in part, on exposure to an electrical potential. In some embodiments, in response to an electrical potential of a first polarity, the electro-optic medium may be substantially activated in one region and substantially un-activated in another region. In response to an electrical potential of a second polarity opposite the first polarity, the electro-optic medium may be substantially activated in both regions. In other embodiments, the electro-optic medium is operably activated such that electro-optic medium is activated in one region and un-activated in another region, regardless of polarity.

公开(公告)号：US20230333441A1

公开(公告)日：2023-10-19

申请号：US18212515

申请日：2023-06-21

申请人： HUAWEI TECHNOLOGIES CANADA CO., LTD.

发明人： Enxiao LUAN ,  Armaghan ESHAGHI

IPC分类号： G02F1/225 ,  G02F1/01

CPC分类号： G02F1/2257 ,  G02F1/0147 ,  G02F1/0154

摘要： A waveguide is coupled at both ends to a microring (MRR) modulator in order to form a Mach-Zehnder interferometer out of the resulting unit. The coupled waveguide can be modulated independently from the MRR modulator itself with either an in-resonance photoconductive heater or a geometrically suitable PN junction. During modulation with an applied voltage to the coupler, an independent modulation can be applied to the MRR in order to compensate for wavelength shifting. Ideal lengths for the coupler are identified, as well as a spiral configuration to reduce the coupler's footprint on a photonic integrated circuit. The resulting device has reduced cross-talk between channels of a cascaded MRR system. A second coupler can be coupled to each MRR symmetrically so as to reduce insertion losses, allowing for an increased weight range at the drop and through ports.

公开(公告)号：US20230324723A1

公开(公告)日：2023-10-12

申请号：US18192791

申请日：2023-03-30

申请人： DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  MIRISE Technologies Corporation

发明人： Taku SUZUKI ,  Tatsuya YAMASHITA ,  Naoya TAKE ,  Masashige SATO

IPC分类号： G02F1/015 ,  G02F1/025

CPC分类号： G02F1/0154 ,  G02F1/025 ,  G02F2203/50

摘要： An optical phase modulator includes a rib part extending in an extending direction. The rib part includes an N-type first rib portion and a P-type second rib portion arranged in a width direction to have a PN junction therebetween along the extending direction. An N-type first slab portion is connected to the first rib portion and a P-type second slab portion is connected to the second rib portion to provide a PN structure with the rib part in a cross-section having a normal direction along the extending direction. A P-type third slab portion is connected to the first rib portion and an N-type fourth slab portion is connected to the second rib portion to have a PNPN structure with the rib part in a cross-section having a normal direction along the extending direction. The PN structure and the PNPN structure are alternately disposed in the extending direction.

公开(公告)号：US11686956B2

公开(公告)日：2023-06-27

申请号：US16622497

申请日：2018-06-13

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Yuu Takiguchi ,  Kazuyoshi Hirose ,  Yoshitaka Kurosaka ,  Takahiro Sugiyama ,  Yoshiro Nomoto ,  Soh Uenoyama

IPC分类号： G02F1/015 ,  H01S5/00 ,  H01S5/068

CPC分类号： G02F1/015 ,  H01S5/0085 ,  H01S5/06821 ,  G02F1/0154

摘要： The present embodiment relates to a light-emitting device that enables reduction in attenuation or diffraction effect caused by a semiconductor light-emitting device with respect to modulated light outputted from a spatial light modulator, and the light-emitting device includes the semiconductor light-emitting device that outputs light from a light output surface and the reflection type spatial light modulator that modulates the light. The spatial light modulator includes a light input/output surface having the area larger than the area of a light input surface of the semiconductor light-emitting device, modulates light taken through a region facing the light output surface of the semiconductor light-emitting device in the light input/output surface, and outputs the modulated light from another region of the light input/output surface to a space other than the light input surface of the semiconductor light-emitting device.

公开(公告)号：US11668962B2

公开(公告)日：2023-06-06

申请号：US17075007

申请日：2020-10-20

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Sunil Kim ,  Changbum Lee ,  Byounglyong Choi

IPC分类号： G02F1/03 ,  G02F1/07 ,  G02F1/015 ,  G02B1/00 ,  G02F1/29 ,  G02F1/00 ,  B82Y20/00 ,  H01Q15/00

CPC分类号： G02F1/015 ,  G02B1/002 ,  G02F1/0063 ,  G02F1/29 ,  B82Y20/00 ,  G02F1/0154 ,  G02F1/292 ,  G02F2202/30 ,  H01Q15/0086

摘要： A beam steering apparatus may include: a mirror; a refractive index modulation layer disposed on the mirror; a nanoantenna on the refractive index modulation layer; and an insulating layer disposed between the nanoantenna and the refractive index modulation layer, wherein the insulating layer has a thickness distribution in which a first thickness of the insulating layer on a central region of the mirror is less than a second thickness of the insulating layer on an edge region of the mirror, wherein a refractive index of the refractive index modulation layer is modulated to control propagation direction of beam.

公开(公告)号：US20230164470A1

公开(公告)日：2023-05-25

申请号：US17997192

申请日：2021-04-27

申请人： SENSIBEL AS

发明人： Sigbjørn KOLBERG ,  Matthieu LACOLLE ,  Ola Finneng MYHRE ,  Håkon SAGBERG ,  Jakob VENNERØD

IPC分类号： H04R1/08 ,  G01B9/02 ,  G02F1/015 ,  G02F1/29 ,  H04R1/04

CPC分类号： H04R1/08 ,  G01B9/02049 ,  G02F1/0154 ,  G02F1/292 ,  H04R1/04

摘要： An optical microphone module for installation in a microphone assembly is described. The module is manufactured by assembling a semiconductor chip, a spacer and an interferometric component in a stack with the spacer disposed between the semiconductor chip and the interferometric component. The interferometric component comprises a membrane and a substrate comprising an optical element spaced from the membrane. The semiconductor chip comprises an optoelectronic circuit including at least one photo detector and has a light source mounted thereon or integrated therein. The light source is disposed to provide light to the interferometric arrangement such that two light portions propagate via respective optical paths to create an interference pattern at the photo detector which is dependent on a position of the membrane. The stack comprises an internal cavity and at least one aperture providing a passage for air between the internal cavity and an exterior of the stack, such that the internal cavity is in fluid communication with the exterior of the stack. A first side of the membrane is in fluid communication with the exterior of the stack and a second side of the membrane is in fluid communication with the internal cavity.

公开(公告)号：US20240337870A1

公开(公告)日：2024-10-10

申请号：US18297321

申请日：2023-04-07

申请人： Cisco Technology, Inc.

发明人： Vipulkumar K. PATEL ,  Ming Gai Stanley LO ,  Mark A. WEBSTER ,  Farnood KHALILZADEH REZAIE

IPC分类号： G02F1/015

CPC分类号： G02F1/0154 ,  G02F2201/063 ,  G02F2202/20

摘要： Embodiments herein describe a photonic platform having a chiplet with a Pockels effect electro-optic layer made of LN or BTO and a substrate. The chiplet is bonded to a photonic wafer which includes a waveguide. In this manner, a ridge waveguide formed by the Pockels effect electro-optic layer and the waveguide utilizes electro-optic effects to tune a signal.

公开(公告)号：US20230384625A1

公开(公告)日：2023-11-30

申请号：US18032013

申请日：2021-10-14

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Schiller-Universität Jena

发明人： Falk Eilenberger ,  Tobias Vogl

IPC分类号： G02F1/015 ,  H01S5/14 ,  H01S5/04

CPC分类号： G02F1/0154 ,  H01S5/141 ,  H01S5/041 ,  G02F2203/15

摘要： A method is proposed for generating single photons with a predetermined wavelength fV, with the following steps:



i) generating a single photon, preferably in a source and a resonator, wherein the single photon has a resonator wavelength fR and a resonator bandwidth fBR,
ii) measuring the resonator wavelength fR, preferably in a wavelength standard, wherein the single photon is guided from the resonator to the wavelength standard via a beam guide,
iii) comparing the resonator wavelength fR with the predetermined wavelength fV and generating a control signal on the basis of the comparison, preferably in a controller,
iv) adjusting the resonator using the control signal in order to change the resonator wavelength fR toward or to the predetermined wavelength fV,
v) repeating steps i to iv) until the resonator wavelength fR corresponds to the predetermined wavelength fV and then coupling out.

公开(公告)号：US11754865B2

公开(公告)日：2023-09-12

申请号：US16953574

申请日：2020-11-20

申请人： Raytheon BBN Technologies Corp.

发明人： Moe Soltani ,  Thomas Kazior

IPC分类号： G01F1/05 ,  G02F1/055 ,  G02F1/015

CPC分类号： G02F1/0553 ,  G02F1/0154 ,  G02F1/0551 ,  G02F2201/063 ,  G02F2201/58 ,  G02F2202/108 ,  G02F2203/58

摘要： A photonic integrated circuit comprises a silicon nitride waveguide, an electro-optic modulator formed of a III-nitride waveguide structure disposed on the silicon nitride waveguide, a dielectric cladding covering the silicon nitride waveguide and electro-optic modulator, and electrical contacts disposed on the dielectric cladding and arranged to apply an electric field to the electro-optic modulator.

公开(公告)号：US20230194911A1

公开(公告)日：2023-06-22

申请号：US18113769

申请日：2023-02-24

申请人： Raytheon BBN Technologies Corp.

发明人： Moe Soltani ,  Thomas Kazior

IPC分类号： G02F1/055 ,  G02F1/015

CPC分类号： G02F1/0553 ,  G02F1/0154 ,  G02F1/0551 ,  G02F2201/063 ,  G02F2201/58 ,  G02F2202/108 ,  G02F2203/58

摘要： A photonic integrated circuit comprises a silicon nitride waveguide, an electro-optic modulator formed of a III-nitride waveguide structure disposed on the silicon nitride waveguide, a dielectric cladding covering the silicon nitride waveguide and electro-optic modulator, and electrical contacts disposed on the dielectric cladding and arranged to apply an electric field to the electro-optic modulator.