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公开(公告)号：US20240305057A1
公开(公告)日：2024-09-12
申请号：US18667692
申请日：2024-05-17
申请人： MENHIR PHOTONICS AG
发明人： Benjamin RUDIN , Florian EMAURY , Roger VALENTIN
CPC分类号： H01S3/025 , H01S3/034 , H01S3/0401 , H01S3/042 , H01S3/0627 , H01S3/091 , H01S3/0405 , H01S3/1118
摘要： A quasi-monolithic solid-state laser in which the optical components of the laser cavity are bonded to a common substrate via mounts. The optical components and their mounts are fixedly connected to each other and to the substrate by bonding. While the gain medium is bonded to a mount made of a different material with high thermal conductivity for heat sinking, the cavity's lens and mirror components and their mounts are all made of the same material as the substrate, or a different material that is thermally matched to the substrate, and fixedly mounted on the substrate solely with bonding. The bonding is achieved with adhesive bonding, or some other form of bonding such as molecular bonding, chemically activated direct bonding or hydroxide catalysis bonding.
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公开(公告)号：US20240266797A1
公开(公告)日：2024-08-08
申请号：US18640806
申请日：2024-04-19
IPC分类号： H01S3/109 , A61B18/00 , A61B18/20 , H01S3/00 , H01S3/04 , H01S3/042 , H01S3/105 , H01S3/1123
CPC分类号： H01S3/109 , H01S3/005 , H01S3/105 , A61B2018/00589 , A61B2018/00625 , A61B2018/20359 , A61B2018/2065 , A61B2018/207 , H01S3/0078 , H01S3/0407 , H01S3/042 , H01S3/1123
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：US20240222066A1
公开(公告)日：2024-07-04
申请号：US18529239
申请日：2023-12-05
申请人： FEI Company
发明人： Afric Meijer
CPC分类号： H01J37/226 , H01J37/14 , H01J37/20 , H01J37/28 , H01S3/0405 , H01S3/042 , H01S3/06708 , H01J2237/0041
摘要： Fiber Fabry-Perot Cavity laser phase plate for microscopy are described herein. In one aspect, a micro Fabry-Perot laser cavity for charged particle microscopy, can include: a first fiber assembly and a second fiber assembly, wherein each of the first fiber and the second fiber assembly includes: an entrance region including a single-mode fiber; a spacer region including a multimode fiber or a transparent substrate; a convergence region including a gradient index fiber or gradient index lens; and a speculum region including a multimode fiber or a transparent substrate, the entrance region, spacer region, the convergence region, and the speculum region being in optical communication with one another, and where a face of the speculum region of the first fiber assembly faces a face of the speculum region of the second fiber assembly, thereby defining a gap therebetween.
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公开(公告)号：US11896300B2
公开(公告)日：2024-02-13
申请号：US17121815
申请日：2020-12-15
IPC分类号： A61B18/20 , A61B18/26 , H01S3/10 , H01S3/102 , A61B18/22 , A61B18/00 , A61B18/24 , A61B17/00 , H01S3/042 , H01S3/16 , H01S3/131 , H01S3/04 , H01S3/093
CPC分类号： A61B18/20 , A61B18/26 , H01S3/1024 , H01S3/10038 , A61B18/245 , A61B2017/00176 , A61B2018/0066 , A61B2018/00642 , A61B2018/00702 , A61B2018/00714 , A61B2018/00791 , A61B2018/205545 , A61B2018/2261 , A61B2018/2277 , H01S3/042 , H01S3/0407 , H01S3/093 , H01S3/1312 , H01S3/1616 , H01S3/1643
摘要： A laser system may include a controller configured to direct a plurality of temporally spaced-apart electrical pulses to a device that optically pumps a lasing medium, and a lasing medium configured to output a quasi-continuous laser pulse in response to the optical pumping. The plurality of temporally spaced-apart electrical pulses may include (a) a first electrical pulse configured to excite the lasing medium to an energy level below a lasing threshold of the lasing medium, and (b) multiple second electrical pulses following the first electrical pulse. The quasi-continuous laser pulse is output in response to the multiple second electrical pulses.
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公开(公告)号：US11888287B2
公开(公告)日：2024-01-30
申请号：US17175773
申请日：2021-02-15
IPC分类号： H01S5/024 , H01S3/0941 , H01S3/04 , H01S3/042 , H01L23/473 , H01S5/04
CPC分类号： H01S5/02423 , H01L23/473 , H01S3/0407 , H01S3/0941 , H01S5/02415 , H01S3/042 , H01S5/041
摘要： The system and method for cooling a laser using a split liquid cooled heat exchanger. The temperature of coolant entering the system is applied to a portion of the system most in need of lower temperatures and a second heat exchanger uses the outflow from the first heat exchanger to cool a remaining portion of the system that has a tolerance for higher temperatures. The laser cooling system is compact, e.g., less than 45 cubic inches and can handle thermal loads of about 800 W.
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公开(公告)号：US11881676B2
公开(公告)日：2024-01-23
申请号：US16778454
申请日：2020-01-31
发明人： Jeffrey A. Myers , Baoping Guo , Edward Miesak
IPC分类号： H01S3/0941 , H01S3/04 , H01S3/042 , H01S3/1115 , H01S3/06 , H01S3/094 , H01S3/16 , G01S7/481 , H01S3/17 , H01S3/113
CPC分类号： H01S3/09415 , H01S3/0401 , H01S3/042 , H01S3/0405 , H01S3/0604 , H01S3/094053 , H01S3/1115 , H01S3/1608 , G01S7/4814 , H01S3/061 , H01S3/0606 , H01S3/094084 , H01S3/113 , H01S3/1618 , H01S3/1685 , H01S3/1698 , H01S3/17 , H01S3/178
摘要： A laser system may include one or more of the following components: a power supply, a continuous wave pump laser, a fiber optic cable, a positive lens, a gain medium, a heat sink, and/or a Q-switch. The laser system may be used in a light detection and ranging (LIDAR) system such as a scanning LIDAR system. The laser system may be designed to operate at wavelengths that may be safe for human eyes.
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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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