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21. 发明授权

US11567258B1 Structures in optical devices having graphene and manufacturing method for the same 有权
公开(公告)号：US11567258B1
公开(公告)日：2023-01-31
申请号：US17665940
申请日：2022-02-07
申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY , KOREA INSTITUTE OF MACHINERY & MATERIALS
发明人： Yong Won Song , Md. Siam Uddin , Jiyeon Choi , Sungil Kim , Dohyun Kim
IPC分类号： G02B6/02 , C03C25/106
摘要： The present disclosure discloses an optical device structure including an optical fiber including a core part, a clad part, and a three-dimensional micro hole structure in the clad part, wherein a surface of the three-dimensional micro hole structure is provided with at least a non-flat surface, and a conformal graphene layer is formed on the surface of the three-dimensional micro hole structure, and a method of manufacturing the same.

22. 发明授权

US11566349B2 High strength 3D-printed polymer structures and methods of formation 有权
公开(公告)号：US11566349B2
公开(公告)日：2023-01-31
申请号：US16990164
申请日：2020-08-11
申请人： U.S. Army Combat Capabilities Development Command, Army Research Laboratory
发明人： Ryan M. Dunn , Kevin R. Hart , Eric D. Wetzel
IPC分类号： D01D5/08 , D01D5/34 , D01D10/02 , D01F8/04 , D02J13/00 , D01F8/14 , B29C55/00 , B29C35/02 , D01F8/10 , D01F8/18 , D01F8/00 , B33Y70/00 , D01D5/30 , D01D5/24 , B29C64/106 , B29C48/91 , B29C71/00 , B29C48/16 , B29C64/118 , G02B6/02 , B29K69/00 , B29K105/08 , B29L31/00 , B29K55/02 , B29K33/00 , B29C71/02
摘要： A polymer body includes a first thermoplastic polymer, and a second thermoplastic polymer. The first thermoplastic polymer and the second thermoplastic polymer form a continuous solid structure. The first thermoplastic polymer forms an external supporting structure that at least partially envelops the second thermoplastic polymer. A first flow temperature of the first thermoplastic polymer is at least 10° C. higher than a second flow temperature of the second thermoplastic polymer. The first thermoplastic polymer may be removable by exposure to a selective solvent.

23. 发明授权

US11556068B2 Detection system for an alignment sensor 有权
公开(公告)号：US11556068B2
公开(公告)日：2023-01-17
申请号：US17284009
申请日：2019-09-24
申请人： ASML Netherlands B.V.
发明人： Simon Reinald Huisman
IPC分类号： G03F7/20 , G03F9/00 , G02B6/02
摘要： A detection system for an alignment sensor, and an alignment sensor and lithographic projection apparatus comprising such a detection system is disclosed. The detection system comprises at least one detection circuit; and a plurality of optical fiber cores for transporting a measurement signal to the at least one detection circuit. At least as subset of the plurality of optical fiber cores are selectively switchable between a detection state and a non-detection state, thereby defining a configurable detection spot.

24. 发明授权

US11536895B2 Method for manufacturing polarization-independent orbital angular momentum modulator 有权
公开(公告)号：US11536895B2
公开(公告)日：2022-12-27
申请号：US17297647
申请日：2018-11-28
申请人： SHENZHEN UNIVERSITY
发明人： Zhiyong Bai , Yan Zhang , Yiping Wang , Cailing Fu , Shen Liu
IPC分类号： G02B6/02 , G02F1/133 , G02F1/1333
摘要： A polarization-independent orbital angular momentum modulator based on a chiral fiber grating, a method for manufacturing the same, and an orbital angular momentum beam generator. The orbital angular momentum modulator includes an optical fiber body having a spiral fiber structure, and the spiral fiber structure has a long-period optical fiber grating effect. The optical fiber body has a periodic spiral refractive index modulation in an axial direction. A period of the spiral refractive index modulation has a magnitude of hundreds of microns, and the spiral refractive index modulation is distributed in an axial direction, a radial direction, and an angular direction of the optical fiber body, and configured to excite a spiral phase to generate an orbital angular momentum beam.

25. 发明授权

US11531156B2 Multicore optical fiber with depressed index common cladding 有权
公开(公告)号：US11531156B2
公开(公告)日：2022-12-20
申请号：US17411192
申请日：2021-08-25
申请人： CORNING INCORPORATED
发明人： Pushkar Tandon
IPC分类号： G02B6/02 , G02B6/028 , G02B6/036
摘要： A multicore optical fiber comprising: a depressed index common-cladding region having a refractive index Δcc; and a plurality of core portions disposed within the depressed index common-cladding region, wherein each core portion comprises: a central axis, a core region comprising a relative refractive index Δ1, an inner-cladding region encircling and directly contacting the core region comprising a relative refractive index Δ2, a trench region encircling and directly contacting the inner cladding region comprising a relative refractive index Δ3, and an outer-cladding region encircling and directly contacting the trench region comprising a relative refractive index Δ4, wherein the refractive index of the depressed index common-cladding region Δcc is less than the refractive index of the outer-cladding region Δ4, and wherein a difference between the refractive index of the depressed index common-cladding region Δcc and the refractive index of the first outer-cladding region Δ4 is greater than 0.05% Δ.

26. 发明申请

US20220397648A1 OPTICAL COUPLER FOR LIDAR SENSOR 有权
公开(公告)号：US20220397648A1
公开(公告)日：2022-12-15
申请号：US17890243
申请日：2022-08-17
申请人： OURS Technology, LLC
发明人： Sen Lin , Andrew Steil Michaels
IPC分类号： G01S7/481 , G01S17/931 , G01S17/34 , G02B6/02
摘要： A LIDAR device for a vehicle includes an integrated chip. The integrated chip includes a substrate layer, a cladding layer, a waveguide, a scattering array, and a reflector layer. The cladding layer is disposed on the substrate layer to form an interface with the substrate layer. The waveguide is disposed within the cladding layer and configured to route an infrared optical field. The scattering array is disposed within the cladding layer between the waveguide and the interface and perturbs the infrared optical field and scatters the infrared optical field into a first beam propagating toward a surface of the cladding layer and into a second beam propagating towards the interface. The reflector layer is disposed within the cladding layer between the waveguide and the surface of the cladding layer to reflect the first beam towards the interface.

27. 发明申请

US20220390755A1 LASER INTERFEROMETER 有权
公开(公告)号：US20220390755A1
公开(公告)日：2022-12-08
申请号：US17804091
申请日：2022-05-25
申请人： SEIKO EPSON CORPORATION
发明人： Kohei YAMADA , Takeshi SHIMIZU
IPC分类号： G02B27/28 , G01B9/02 , G02B5/18 , G02B6/02
摘要： A laser interferometer that includes a light source configured to emit laser light, an optical divider configured to divide the laser light into a first optical path and a second optical path, an optical modulator being provided on the first optical path or the second optical path, including an oscillator that oscillates when a current is applied, and being configured to modulate the laser light by using the oscillator, a photoreceptor configured to receive the laser light and output a photoreception signal, the laser light being reflected by an object to be measured that is provided on the first optical path or the second optical path, and a demodulation circuit configured to demodulate, from the photoreception signal, a Doppler signal derived from the object to be measured, based on a reference signal and a modulation signal derived from the optical modulator, wherein Iq/f≤1×10−7 is satisfied, where an amplitude value of the current applied to the oscillator that is oscillating is Iq [A] and an oscillation frequency of the oscillator is f [Hz].

28. 发明授权

US11519759B2 Cable, cable shape sensing system, sensing system, and cable shape sensing method 有权
公开(公告)号：US11519759B2
公开(公告)日：2022-12-06
申请号：US17136446
申请日：2020-12-29
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Masateru Tadakuma , Shigehiro Takasaka , Ryuichi Sugizaki
IPC分类号： G02B6/02 , G01D5/353 , G01B11/16
摘要： A cable comprising: a plurality of optical fiber cores; and one or more optical fiber core wires including one or more of the optical fiber cores. Further, at least one of the optical fiber core wire is fixed at a plurality of positions in a longitudinal direction of the cable so as to achieve substantially no displacement in a cable radial direction, at least a pair of the optical fiber core wires are fixed in a plane perpendicular to the longitudinal direction of the cable so as to achieve substantially no displacement relative to each other, and sensing of a strain profile in the longitudinal direction of at least the pair of the optical fiber core wires leads to achievement of sensing of a shape of the cable in the longitudinal direction.

29. 发明授权

US11519721B2 Optical shape sensor, optical shape sensing console and system, and optical shape sensing method 有权
公开(公告)号：US11519721B2
公开(公告)日：2022-12-06
申请号：US16964220
申请日：2019-01-24
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Martinus Bernardus Van Der Mark , Anna Hendrika Van Dusschoten , Eibert Gerjan Van Putten , Gert Wim 'T Hooft
IPC分类号： G01B11/24 , G02B6/02 , G02B6/255 , G02B6/26 , G02B6/32 , A61B5/00
摘要： An optical fiber (F2) having a length defining a longitudinal direction is disclosed. The optical fiber (F2) has at least two fiber cores (C21, C22) extending along the length of the optical fiber (F2), and an optical coupling member (OCM2) is arranged at a proximal optical fiber end of the optical fiber (F2). The coupling member (OCM2) has a first distal end face (OF2) optically connected to the proximal optical fiber end, and a proximal second end face (IF2) spaced apart from the first distal end face (OF2) in the longitudinal direction of the optical fiber (F2), the optical coupling member (OCM2) being configured to couple light into each of the fiber cores (C21, C22, C23).

30. 发明授权

US11513294B2 Double asymmetric optical fiber coupler 有权
公开(公告)号：US11513294B2
公开(公告)日：2022-11-29
申请号：US17415045
申请日：2019-12-20
申请人： Castor Optics Inc.
发明人： Nicolas Godbout , Lucas Majeau
IPC分类号： G02B6/28 , G02B6/02
摘要： There is described an optical fiber coupler generally having: a first optical fiber having a longitudinally extending multimode guiding region and a first taper portion longitudinally extending between first and second locations of the first optical fiber, the first taper portion having a dimension progressively decreasing along a first taper direction from the first location to the second location; a second optical fiber having a longitudinally extending multimode guiding region and a second taper portion longitudinally extending between third and fourth locations of the second optical fiber, the second taper portion having a dimension progressively decreasing along a second taper direction from the third location to the fourth location; and a coupling region where at least a portion of the first taper portion is optically coupled to a portion of the second taper portion, with the first and second taper directions being opposite to one another.

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