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公开(公告)号：US20220413273A1
公开(公告)日：2022-12-29
申请号：US17378569
申请日：2021-07-16
摘要： A laser system includes a laser diode that, upon activation, selectively produces a continuous wave of laser light or uniformly spaced, intermittent pulses of laser light. The system further includes a laser focuser with a plurality of lenses that focus the laser light produces by the laser diode and direct the laser light to an optical resonator. The optical resonator includes a lasing medium that, when intersected by the laser light from the laser diode, produces a beam of laser light with a wavelength that may be used for therapeutic treatment. The system is operable to produce the therapeutic laser light when the laser diode is operating in either the continuous wave mode or the pulsed mode, without moving components of the system relative to one another.
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公开(公告)号：US20220376456A1
公开(公告)日：2022-11-24
申请号：US17746285
申请日：2022-05-17
摘要： Laser amplifier apparatus 100 includes gain medium 10 for receiving seed pulse(s) 2 and pump pulse(s) 3 and for emitting laser pulse(s) 1, resonator device 20 including gain medium and resonator mirrors spanning resonator beam path 25 with multi-pass geometry, coupler arrangement 30 for coupling seed pulse(s) and pump pulse(s) to resonator device and coupling output laser pulse(s) out of resonator device, and gain medium cooling device 40A. Resonator mirrors include first and second telescope mirrors 21, 22 with mutual distance and common focal section therebetween and defining optical axis z of resonator device, and first and second groups of end mirrors 23, 24 between mirrors 21 and 22 for forming path 25, wherein end mirrors are on ring-shaped section surrounding optical axis z, and resonator are arranged such that emitting sections of the gain medium are imaged in themselves. A method of amplifying laser pulses is also described.
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公开(公告)号：US11362476B2
公开(公告)日：2022-06-14
申请号：US17105136
申请日：2020-11-25
发明人： Siyang Cheng , Peijin Wang , Xiaoyu Wang , Qian Cheng
IPC分类号： H01S3/042 , H01S5/024 , F21V29/503 , F21V29/504 , F21V29/56 , H01S3/0941 , H01S5/40 , H01S3/02 , H01S5/023 , H01S5/0233 , H01S5/0235 , H01S5/02325 , F21V29/508 , F21V5/04 , H01S3/04 , H01S5/02212 , H01S5/02 , H01S3/06 , H01S3/07 , H01S3/109 , F21Y115/30 , F21Y105/10
摘要： A system includes a heat sink module and a driving circuit module. The heat sink module includes stepped through-holes that each includes a cylindrical upper and lower portions connected by a ring-shaped surface. The bottom surface of the heat sink module includes grooves that respectively pass through the lower portions of respective sequences of the stepped through-holes. The driving circuit module includes conductive connectors and electrical driving surfaces that are disposed external to the heat sink module. Each conductive connector lies within a respective groove in the bottom surface of the heat sink module. The conductive connectors include internal connectors that each link at least two stepped through-holes in a respective sequence of stepped through-holes passed by a respective groove, and include external connectors that each link at least one stepped through-hole in the respective sequence of stepped through-holes to the electrical driving surfaces.
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公开(公告)号：US11316318B2
公开(公告)日：2022-04-26
申请号：US16564925
申请日：2019-09-09
摘要： A surgical laser system includes a pump module configured to produce pump energy within an operating wavelength, a gain medium configured to convert the pump energy into first laser energy, a non-linear crystal (NLC) configured to convert a portion of the first laser energy into second laser energy, which is a harmonic of the first laser energy, an output, and a first path diversion assembly having first and second operating modes. When the first path diversion assembly is in the first operating mode, the first laser energy is directed along the output path to the output, and the second laser energy is diverted from the output path and the output. When the first path diversion assembly is in the second operating mode, the second laser energy is directed along the output path to the output, and the first laser energy is diverted from the output path and the output.
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公开(公告)号：US11224757B2
公开(公告)日：2022-01-18
申请号：US16756814
申请日：2019-09-10
申请人： Hua Shang
发明人： Hua Shang
IPC分类号： A61N5/06 , H01S5/02251 , A61N5/067 , H01S3/02 , H01S3/03 , H01S3/04 , H01S3/041 , H01S3/042 , H01S5/024
摘要： Disclosed is an exchangeable laser unit and an array thereof. The exchangeable laser unit includes cartridge receivers and housings having a uniform shape and uniform optical interfaces. The cartridge receiver adopts the optical interface including a tapered cavity and cylindrical cavity, so that a precise mechanical connection can be achieved between the output of laser of the cartridge receiver and the output of the optical fiber of the housing without professional tools, facilitating standardization of the output components of the laser elements of the cartridge receiver. In addition, the upper-lower guide rails and the upper-lower channels having certain of inclination degree can realize the precise positioning of the cartridge receiver and the housing. When replacing one laser element by a laser element that emits laser with a different wavelength, it is only necessary to replace the cartridge receiver inside the housing. That is, the replacement of laser elements having different wavelengths is converted to the replacement of cartridge receivers, which greatly reduces the difficulty for medical personnel to switch laser wavelengths, and improves the popularization of laser therapeutic instruments in the medical field. In the exchangeable laser array of the disclosure, the cartridge receiver inside the housing can be replaced by other cartridge receiver that emits laser with a different wavelength, and the plurality of housings can be connected with a plurality of wavelength switchers in the back to realize selective output of the wavelength.
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公开(公告)号：US11095085B2
公开(公告)日：2021-08-17
申请号：US16480882
申请日：2018-01-25
发明人： Jay W. Dawson , Ronald Lacomb
摘要： The present disclosure relates to a laser system. The laser system may have at least non-flat gain media disc. At least one pump source may be configured to generate a beam that pumps the non-flat gain media disc. A laser cavity may be formed by the pump source and the non-flat gain media disc. An output coupler may be included for receiving and directing the output beam toward an external component.
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公开(公告)号：US11063403B2
公开(公告)日：2021-07-13
申请号：US15751258
申请日：2017-01-12
发明人： Koichi Hamamoto , Ryuichi Matsuda
摘要： A solid-state laser device includes an inner container, an outer container, a cooling medium supply unit, and a cover section. The inner container in which a laser medium is accommodated includes an inner light-transmitting unit. An outer light-transmitting unit of the outer container is provided at a part that faces the inner light-transmitting unit and is vacuum-insulated from the inner light-transmitting unit. The cooling medium supply unit supplies a cooling medium so that the cooling medium comes in contact with a surface other than a light input and output surface in the laser medium. The cover section partitions a light-passing area from a cooling medium supply area to which the cooling medium is supplied.
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公开(公告)号：US11050212B2
公开(公告)日：2021-06-29
申请号：US16167556
申请日：2018-10-23
申请人： Keyence Corporation
发明人： Masao Sato , Yu Takabatake , Hideki Yamakawa
IPC分类号： H01S3/11 , B23K26/36 , B23K26/082 , G02B26/10 , H01S3/0941 , H01S3/109 , H01S3/04 , H01S3/00 , H01S3/16 , H01S3/042 , H01S3/08 , H01S3/091 , H01S3/06 , B23K26/352 , H01S3/02 , B23K26/042 , B23K26/064 , B23K26/06 , B23K26/03 , H01S3/102 , B23K26/0622 , B23K26/38 , B23K26/046 , H01S3/10 , H01S3/081 , H01S3/23
摘要： To prevent an output decrease of laser light due to impurities formed in a Q switch. A laser machining device includes a Q-switch housing section configured by housing a Q switch and a first mirror and a wavelength converting section including a housing in which a transmission window section capable of transmitting a fundamental wave is formed, the wavelength converting section being configured by airtightly housing, with an internal space surrounded by the housing, at least a first wavelength conversion element, a second wavelength conversion element, and a second mirror. A resonator forming a resonant optical path passing through the transmission window section is configured by the first mirror in the Q-switch housing section and the second mirror in the wavelength converting section.
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公开(公告)号：US10897116B2
公开(公告)日：2021-01-19
申请号：US15854468
申请日：2017-12-26
摘要： A uniform temperature profile is provided across the width of the core of a ribbon fiber laser or amplifier by the use of insulating elements at the core edges and a spatially variable gain in the fiber core. High average power ribbon fibers, enable a variety of applications such as practical laser cutting and beam combining.
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公开(公告)号：US10819078B2
公开(公告)日：2020-10-27
申请号：US16255832
申请日：2019-01-24
发明人： Takunori Taira , Arvydas Kausas
摘要： A method for manufacturing an optical element includes a bonding step of bonding a first and a second element portion to each other without interposing an adhesive therebetween. The bonding step includes: a first step of fixing the first and the second element portion with an intermediate layer disposed between these portion, the intermediate layer containing an element substitutable for a constituent element of a bonded portion in the first and the second element portion, the intermediate layer being colored; and a second step of integrating a part of the intermediate layer with the first and the second element portion, and making a part of the intermediate layer transparent to laser light by irradiating the intermediate layer with giant pulse laser light and causing it to be absorbed into the intermediate layer after the first step.
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