Patents Assigned to IPG Photonics Corporation
  • Publication number: 20220142463
    Abstract: Steering handles with manifolds that enable an operator to configure an endoscopic system in situ for a variety of tasks, including irrigation, aspiration, or both. In addition, the disclosed endoscopic systems facilitate rapid reconfiguration of the location of a laser fiber optic within a catheter assembly. The laser fiber optic, for example, can be removed from an irrigation channel of the endoscopic system and reinserted in the aspiration channel during a laser lithotripsy procedure. In some embodiments, the removal and reinsertion can be performed in situ, without removing the catheter from the patient or the treated organ. These aspects of the disclosed system reduce the time required to perform laser lithotripsy procedures, with less trauma to the patient.
    Type: Application
    Filed: January 20, 2020
    Publication date: May 12, 2022
    Applicant: IPG PHOTONICS CORPORATION
    Inventors: Gregory ALTSHULER, Ilya YAROSLAVSKY, Dmitri BOUTOUSSOV, Viktoriya ANDREEVA, Olivier TRAXER, Michael BARENBOYM, Isaac OSTROVSKY, Anastasiya KOVALENKO
  • Publication number: 20220149579
    Abstract: A laser system and method. In one example, the laser system includes an optical pulse stretcher configured to stretch pulse durations of an input train of input pulses to produce a train of stretched laser pulses, a pulse replicator module configured to increase a pulse repetition rate of the train of stretched laser pulses to produce a modified pulse train of laser light, a fiber power amplifier configured to amplify the modified pulse train to produce amplified laser pulses, and a pulse compressor that temporally compresses the amplified laser pulses to produce amplified and compressed laser pulses. The system may further include a nonlinear frequency conversion stage comprising at least one nonlinear crystal.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 12, 2022
    Applicant: IPG PHOTONICS CORPORATION
    Inventors: Alex YUSIM, Igor SAMARTSEV, Manuel J. LEONARDO, Vadim SMIRNOV, Pankaj KADWANI, Alexey AVDOKHIN, Andreas VAUPEL
  • Patent number: 11327011
    Abstract: Methods and systems are provided for using optical interferometry in the context of material modification processes such as surgical laser, sintering, and welding applications. An imaging optical source that produces imaging light. A feedback controller controls at least one processing parameter of the material modification process based on an interferometry output generated using the imaging light. A method of processing interferograms is provided based on homodyne filtering. A method of generating a record of a material modification process using an interferometry output is provided.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: May 10, 2022
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Jordan Kanko, Paul J. L. Webster, James M. Fraser
  • Patent number: 11318557
    Abstract: 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.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: May 3, 2022
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Mustafa Coskun, Felix Stukalin, Jonathan S. Ehrmann
  • Patent number: 11316319
    Abstract: A high average and peak power single transverse mode laser system is operative to output ultrashort single mode (SM) pulses in femtosecond-, picosecond- or nanosecond-pulse duration range at a kW to MW peak power level. The disclosed system deploys master oscillator power amplifier configuration (MOPA) including a SM fiber seed, outputting a pulsed signal beam at or near 1030 nm wavelength, and a Yb crystal booster. The booster is end-pumped by a pump beam output from a SM or low-mode CW fiber laser at a pump wavelength in a 1000-1020 nm wavelength range so that the signal and pump wavelengths are selected to have an ultra-low-quantum defect of less than 3%.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: April 26, 2022
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Alex Dergachev, Igor Samartsev, Valentin Gapontsev
  • Patent number: 11307365
    Abstract: 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 compliantly supported and positioned by elastomeric material positioned between the male ferrule and the body portion. The launch connector engages a receiving connector 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.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: April 19, 2022
    Assignee: IPG Photonics Corporation
    Inventors: Gregory Altshuler, Christopher Gaal, Valery Kozlov
  • Patent number: 11289871
    Abstract: A CW laser with a rotating ring gain element is disclosed. The ring is pumped at multiple locations and the laser generates a mid-IR output. Multiple pumped gain portions of the ring provide a power scaled output. The gain portions may be positioned in a single resonator cavity, in multiple resonator cavities, and in MOPA architectures with associated focusing, folding, and combining optical elements.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: March 29, 2022
    Assignee: IPG PHOTONICS CORPORATION
    Inventor: Igor Moskalev
  • Publication number: 20220077932
    Abstract: An optical communication system is disclosed. The optical communication system may include a first fiber pump laser system having a first single mode (SM) fiber output configured to output a first pump laser radiation, a second fiber pump laser system having a second SM fiber output configured to output a second pump laser radiation, at least one combiner-splitter element configured to combine the first pump laser radiation and the second pump laser radiation and to transmit N portions of pump laser radiation, and N doped fiber amplifiers, where N is at least four, each doped fiber amplifier configured to receive one portion of the N portions of pump laser radiation and an input optical signal to be amplified, amplify the input optical signal into an amplified optical signal, and to transmit the amplified optical signal.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 10, 2022
    Applicant: IPG PHOTONICS CORPORATION
    Inventors: Ekatarina GOLOVCHENKO, Cristiano MORNATTA, Stephen G. EVANGELIDES, Jr., Sergio Walter GRASSI
  • Patent number: 11239116
    Abstract: Laser lift off systems and methods may be used to provide monolithic laser lift off with minimal cracking by reducing the size of one or more beam spots in one or more dimensions to reduce plume pressure while maintaining sufficient energy to provide separation. By irradiating irradiation zones with various shapes and in various patterns, the laser lift off systems and methods use laser energy more efficiently, reduce cracking when separating layers, and improve productivity. Some laser lift off systems and methods described herein separate layers of material by irradiating non-contiguous irradiation zones with laser lift off zones (LOZs) that extend beyond the irradiation zones. Other laser lift off systems and methods described herein separate layers of material by shaping the irradiation zones and by controlling the overlap of the irradiation zones in a way that avoids uneven exposure of the workpiece.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: February 1, 2022
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Jeffrey P. Sercel, Marco Mendes, Jie Fu
  • Patent number: 11203084
    Abstract: 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.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: December 21, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Mustafa Coskun, Felix Stukalin, Jonathan S. Ehrmann
  • Patent number: 11152759
    Abstract: A heatable element is configured to apply sufficient energy density to contaminants in an internal ambient atmosphere with in a sealable housing to drive a reaction that inactivates the contaminants.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 19, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Damon A. Wheeler, Thomas R. Myers, Mark W. Byer, Jeffrey D. Kmetec, Brian R. Rankin, Cory Bowman
  • Patent number: 11141815
    Abstract: 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.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: October 12, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Joseph Leo Dallarosa, Ben Amar, David Squires
  • Publication number: 20210265799
    Abstract: An active waveguide including active and passive rods which have respective polymeric claddings mechanically and optically coupled to one another so as to define a side pumping scheme. One or a plurality of elements are embedded in one of or both active and passive rods and have a refractive index lower than the lowest of refractive indices of the respective active and passive rods at least 1*10?3. The MM core of the active rod includes inner and outer concentric regions with a concentration of light emitters in the outer region being lower than that of the inner region at more than 50% and, a radius of the inner region being at most 92% of that of the outer region. The unabsorbed pump light at the output of the active waveguide constitutes less than 1% of the delivered pump light which in combination with the refractive index of the embedded elements and selectively doped core regions contribute to laser efficiency of at least 86%.
    Type: Application
    Filed: June 28, 2019
    Publication date: August 26, 2021
    Applicant: IPG PHOTONICS CORPORATION
    Inventors: Eugene SCHERBAKOV, Valentin FOMIN, Andrey ABRAMOV, Aleksey DORONKIN
  • Patent number: 11064611
    Abstract: A method for fabricating a printed circuit, comprising: darkening a surface location of a conductive material with one or more ultrafast pulses of laser radiation and ablating the conductive material at the surface location with one or more longer duration pulses of laser radiation to produce traces or micro via patterns on the surface of a PCB. A hole for a blind micro via is produced by ablating the conductive material at the darkened surface location with one or more longer duration pulses of laser radiation and cleaning a second conductive material under the substrate with one or more further longer duration pulses of laser radiation.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: July 13, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventor: David C. Clark
  • Patent number: 11052482
    Abstract: A laser alignment system is used to align an output fiber with a fiber laser, for example, when coupling a feeding fiber to a process fiber using a beam coupler or switch. The alignment system includes a laser alignment apparatus that is coupled at a first end to the output fiber and at a second end to a beam dump/power meter. The alignment apparatus defines a light passage and a light capture chamber along the light passage. When light is not aligned into the core of the output fiber, at least a portion of the light passing out of the output fiber will be captured by the light capture chamber and detected by a photodetector in optical communication with the light capture chamber. By monitoring the readings of the photodetector, the output fiber may be properly aligned with the laser light from the fiber laser.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: July 6, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventor: Yuri Grapov
  • Patent number: 10974494
    Abstract: Laser lift off systems and methods overlap irradiation zones to provide multiple pulses of laser irradiation per location at the interface between layers of material to be separated. To overlap irradiation zones, the laser lift off systems and methods provide stepwise relative movement between a pulsed laser beam and a workpiece. The laser irradiation may be provided by a non-homogeneous laser beam with a smooth spatial distribution of energy across the beam profile. The pulses of laser irradiation from the non-homogenous beam may irradiate the overlapping irradiation zones such that each of the locations at the interface is exposed to different portions of the non-homogeneous beam for each of the multiple pulses of the laser irradiation, thereby resulting in self-homogenization. Thus, the number of the multiple pulses of laser irradiation per location is generally sufficient to provide the self-homogenization and to separate the layers of material.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: April 13, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Cristian Porneala, Mathew Hannon, Marco Mendes, Jeffrey P. Sercel
  • Patent number: 10978848
    Abstract: A method of inducing light losses at a parasitic wavelength in a fiber laser system includes providing a wavelength discriminator (WD) spaced from and between feeding and process fibers or from the end output of the feeding fiber so as to induce losses of light at parasitic wavelength. The device implementing the disclosed method is configured with a laser source, the delivery fiber and WD spaced at a distance between the surface to be treated and the end of the delivery fiber, wherein the WD receives the parasitic light over free space and is configured as a dichroic filter inducing losses to the light at the parasitic wavelength.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: April 13, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Andrey Mashkin, Valentin Fomin, Fedor Shcherbina, Alexander Dronov, Andrey Abramov, Vadim Mironov, Eugene Scherbakov
  • Patent number: 10951000
    Abstract: A single mode (SM) high power laser system is configured with a laser source outputting a single mode or low mode kW-power light and a passive delivery fiber spliced to an output fiber of the fiber laser source and having a double bottleneck-shaped core. The latter is configured to increase a threshold for nonlinear effects in general and in particular for stimulated Raman scattering (SRS) so that the delivery passive fiber has a fiber length at least twice the length of a delivery passive fiber with a standard uniformly dimensioned core, which may be used with the same laser source, while outputting the kW-power light with an M2 factor less than 2.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: March 16, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Anton Ferin, Valentin Fomin, Andrey Abramov
  • Patent number: 10913130
    Abstract: Methods and systems are provided for using optical interferometry in the context of material modification processes such as surgical laser or welding applications. An imaging optical source that produces imaging light. A feedback controller controls at least one processing parameter of the material modification process based on an interferometry output generated using the imaging light. A method of processing interferograms is provided based on homodyne filtering. A method of generating a record of a material modification process using an interferometry output is provided.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: February 9, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Paul J. L. Webster, James M. Fraser, Victor X. D. Yang
  • Patent number: 10906129
    Abstract: The present invention provides a multi-fiber laser output system that delivers at least three fiber outputs arranged in a circumferential pattern or otherwise at least four distinct laser outputs from a single processing cable. The present invention allows for controlling the at least three laser modules and delivering their respective outputs in a pre-determined sequence in a single processing cable, thereby providing multiple processing steps on a work piece that heretofore required separate optics for each beam. The at least three laser outputs are optimized for use in creating spot welds, seam welds or virtual wobble welds when used for seam welding.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 2, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Eugene Scherbakov, Valentin Fomin, Andrey Abramov, Dmitri Yagodkin, Holger Mamerow