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公开(公告)号：US11621540B2
公开(公告)日：2023-04-04
申请号：US17197903
申请日：2021-03-10
发明人： Adam Pinard , Wolf Fuchs , Keith Millea , Oleg Shkurikhin
摘要： A laser system comprising high voltage AC-to-DC power converter and one or more current sources coupled to the high voltage AC-to-DC power converter without a DC-to-DC converter between the one or more current sources and the AC-to-DC power source. Each of the one or more current sources includes a high voltage switch and one or more independent safety shutoffs. A laser module is operably coupled to the one or more current source and configured to emit electromagnetic radiation wherein the one or more safety shutoffs are configured to disable emission of electromagnetic radiation from the laser module when triggered.
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公开(公告)号：US20230077457A1
公开(公告)日：2023-03-16
申请号：US17724343
申请日：2022-04-19
摘要： A delivery system extends from a laser radiation source for connecting to a medical device that utilizes the laser radiation for medical treatment. The delivery system comprises an optical fiber connecting to a male launch connecter. The male launch connector having a body portion with the optical fiber fixed or constrained therein and the optical fiber terminating at a male ferrule with a forward directed fiber facet, the male ferrule may be cantilevered within the body portion by the optical fiber line providing freedom of movement of the male ferrule. The launch connector engages a receiving connector on the medical device first with mechanical connection portions and then more finely aligning optical connection portions by the male ferrule self aligning in a female ferrule with cooperating tapered surfaces. The male portion may fully seat in the female portion with cooperating cylindrical surfaces.
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公开(公告)号：US11600491B2
公开(公告)日：2023-03-07
申请号：US16635097
申请日：2018-07-31
IPC分类号： H01L21/02 , B23K26/0622 , H01L21/67 , H01L27/12 , B23K26/064 , B23K26/073 , B23K26/066 , B23K103/00
摘要： A method of fiber laser processing of thin film deposited on a substrate includes providing a laser beam from at least one fiber laser which is guided through a beam-shaping unit onto the thin film. The beam-shaping optics is configured to shape the laser beam into a line beam which irradiates a first irradiated thin film area Ab on a surface of the thin film, with the irradiated thin film area Ab being a fraction of the thin film area Af. By continuously displacing the beam shaping optics and the film relative to one another in a first direction at a distance dy between sequential irradiations, a sequence of uniform irradiated thin film areas Ab are formed on the film surface defining thus a first elongated column. Thereafter the beam shaped optics and film are displaced relative to one another at a distance dx in a second direction transverse to the first direction with the distance dx being smaller than a length of the irradiated film area Ab. With the steps performed to form respective columns, the elongated columns overlap one another covering the desired thin film area Af. The dx and dy distances are so selected that that each location of the film area Af is exposed to the shaped laser beam during a cumulative predetermined duration.
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公开(公告)号：US20230036545A1
公开(公告)日：2023-02-02
申请号：US17897905
申请日：2022-08-29
发明人： Paul J.L. Webster
IPC分类号： B23K26/03 , B23K26/082 , B23K26/244 , B23K9/00 , B23K10/02 , B23K15/00 , G01B5/00 , G01S17/89 , G01B11/24 , G01S7/481 , G01N21/954 , B23K26/06 , B23K26/14 , B23K31/12 , G01B11/22
摘要： A method, apparatus, and system are provided to monitor and characterize the dynamics of a phase change region (PCR) created during laser welding, specifically keyhole welding, and other material modification processes, using low-coherence interferometry. By directing a measurement beam to multiple locations within and overlapping with the PCR, the system, apparatus, and method are used to determine, in real time, spatial and temporal characteristics of the weld such as keyhole depth, length, width, shape and whether the keyhole is unstable, closes or collapses. This information is important in determining the quality and material properties of a completed finished weld. It can also be used with feedback to modify the material modification process in real time.
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公开(公告)号：US20230006758A1
公开(公告)日：2023-01-05
申请号：US17781513
申请日：2020-12-07
发明人： George BuAbbud
IPC分类号： H04J14/02
摘要： The Bi-Di coherent transmission system is configured with at least one pair of modules coupled to one another via a single fiber. The modules each are configured with a pair of laser outputting two reference signals at respective different wavelengths λ1o and λ2o, photonic transceiver and a wavelength division multiplexer (WDM) coupler. The photonic transceivers each have transmitter and receiver branches integrated in a photonic circuit and receiving the reference signals. The transmitter is configured to modulate the received reference signals λ1oT and λ2oT which are further coupled into the WDM coupler. The WDM couplers each sort out one of the modulated signals and transmit the other modulated signal such that the transmitted modulated signal at different wavelengths λ1oT and λ2oT are coupled into respective opposite ends of the fiber and propagate towards one another in opposite directions. The transmitted modulated signals arc coupled into respective branches through the WDM couplers with each transmitted modulated signal interfering with the reference signals at wavelengths λ1oT and λ2oT. The photodiodes of respective receiving brandies are configured to detect a beat frequency of the interfering signals at the same wavelength.
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公开(公告)号：US20220365296A1
公开(公告)日：2022-11-17
申请号：US17763381
申请日：2020-09-24
发明人： Pavel Mamyshev
IPC分类号： G02B6/42
摘要： A method and system for an optical package assembly is disclosed. According to one example, the optical package assembly includes a photonic integrated circuit (PIC) chip, at least one fiber coupled to the PIC chip, a fiber lid plate disposed on at least a portion of the at least one fiber, and a cover plate having a surface coupled to the PIC chip and the fiber lid plate.
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7.发明申请公开(公告)号：US20220339741A1
公开(公告)日：2022-10-27
申请号：US17640964
申请日：2020-03-27
IPC分类号： B23K26/55 , B23K26/082 , B23K26/0622 , B23K26/06
摘要： The invention relates to laser equipment, specifically pulsed scanning lasers used to cut brittle substrates. The authors propose a method and device for forming a stressed edge in the substrate for cleaving of the substrate, to which end a track of cavities is formed through optically induced breakdown in the body of tire material during its irradiation with a focused laser beam with a fixed focal distance during the course of angled scanning of the laser beam, with longitudinal movement along the length of the substrate. The technical result is: improved strength parameters of products and better quality of straight and oblique edges formed during substrate cleaving, absence of chips and microcracks, high rate of formation of the stressed cleaving edge, which implies faster laser cutting.
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公开(公告)号：US20220072330A1
公开(公告)日：2022-03-10
申请号：US17414740
申请日：2019-12-18
摘要： A device and associated method for treatment of tissue in a joint of a mammal includes an energy source and an energy-delivery implement coupled to the energy source. The energy-delivery implement has a distal portion configured to be inserted into the joint, the distal portion having at least one energy-emitting portion. A control module causes the energy source to produce energy in a pre-defined treatment sequence, the sequence comprising at least two pulses of energy separated by an interval. The energy-delivery implement is configured to emit the energy at the distal portion, to create a zone of thermal stress within target tissue, without causing substantial coagulation of the target tissue, wherein the size of the thermal stress zone is substantially less than the size of the target tissue being treated. A biologic can be injected or otherwise delivered into the joint before, during, or after delivery of the energy.
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公开(公告)号：US11203084B2
公开(公告)日：2021-12-21
申请号：US15863403
申请日：2018-01-05
IPC分类号： B23K26/064 , B23K26/34 , B33Y30/00 , B33Y10/00 , B23K26/06
摘要： Laser processing systems and methods image a multiple core array to a work surface in a multiple processing beam array. An optical system separates processing beams and converges the beams toward the work surface and focuses each beam of the array at or near the work surface. A central axis with access for filler material flow to the work surface is provided. The processing beam array and central filler material feed provide omni-directional additive laser processing capability.
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公开(公告)号：US11141815B2
公开(公告)日：2021-10-12
申请号：US15024177
申请日：2014-09-24
发明人： Joseph Leo Dallarosa , Ben Amar , David Squires
IPC分类号： B23K26/073 , B23K26/0622 , B23K26/046 , B23K26/21 , B23K26/32 , B23K26/08 , B23K26/04 , B23K26/14 , B23K26/144 , B23K26/34 , B23K26/12 , B23K26/364 , B23K26/06 , B23K101/00 , B23K103/08 , F01D5/28
摘要： Laser processing systems and methods are capable of moving a laser beam while maintaining consistent laser beam characteristics at processing locations. The laser processing systems generate a collimated laser beam having a consistent Z axis power density along at least a portion of a length of the laser beam and dither the collimated laser beam along one of the X and Y axes. The dithering of the collimated laser beam facilitates consistent laser processing on a three-dimensional surface, for example, to provide consistent deposition of a coating in a laser cladding process. A laser processing system may include a beam delivery system that provides both the collimation and the dithering of the collimated laser as well as an adjustment of the beam diameter of the collimated beam.
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