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公开(公告)号：US20240361666A1
公开(公告)日：2024-10-31
申请号：US18681646
申请日：2022-05-16
发明人： Takashi SEKINE , Yoshinori TAMAOKI
CPC分类号： G02F1/354 , G02F1/392 , H01S3/0092 , H01S3/2391
摘要： A laser amplification device includes an amplification unit and a phase adjustment unit; the amplification unit includes a signal light source, an excitation light source, and a nonlinear optical crystal; the nonlinear optical crystal has a plurality of spatially different crystal portions; the signal light source, the excitation light source, and the nonlinear optical crystal are arranged such that signal light and excitation light are simultaneously incident on the plurality of crystal portions and that the elements of at least one of a set of the angles of incidence between the crystal axes of the plurality of crystal portions and the signal light and a set of the angles of incidence between the crystal axes of the plurality of crystal portions and the excitation light are different.
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公开(公告)号：US20240235143A1
公开(公告)日：2024-07-11
申请号：US18150723
申请日：2023-01-05
发明人： Yushi Kaneda , Lloyd J. LaComb, JR. , Khanh Kieu
CPC分类号： H01S3/0092 , G02F1/3534 , G02F1/354 , G02F1/3544 , G02F1/3551 , H01S3/0057 , H01S3/067
摘要： Laser sources of the present invention allow for the efficient generation of harmonic frequencies from broadband sources. Over-compression and under-compression of a split signal result in two beams chirped in opposite directions. These two beams may be combined in a non-linear crystal to generate a narrow-band harmonic signal from a broadband source.
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公开(公告)号：US20240063600A1
公开(公告)日：2024-02-22
申请号：US18234677
申请日：2023-08-16
申请人： II-VI Delaware, Inc.
发明人： Valeri V. Ter-Mikirtychev , Nicholas Matthew Kearns , Joseph Earl Cheeney , Matthew Nicholas Kalinowski , Jens Schumacher , Dominic Nicholas Loiacono
CPC分类号： H01S3/109 , H01S3/08086 , G02F1/3551 , G02F1/354
摘要： A laser system includes one or more harmonic generator blocks or elements including one or more crystals for converting a first wavelength (λ1) laser beam into second, third and/or fourth wavelength (λ2, λ3 and/or λ4) laser beams that may be output, with or without the first wavelength (λ1) laser beam, on different beam paths. One or more of the first, second, third and/or fourth wavelength laser beams may travel or traverse in a crystal in one or multiple directions.
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公开(公告)号：US20230393331A1
公开(公告)日：2023-12-07
申请号：US17996455
申请日：2021-04-28
CPC分类号： G02B6/02285 , G02F1/354 , G02B6/02395 , G02F1/3544 , G02F1/3536 , G02F1/3534
摘要： The invention relates to an arrangement and a method for efficient, non-linear light conversion. The object of the present invention of specifying an arrangement for efficient, non-linear light conversion, which simultaneously optimally fulfills the local conversion rate, the interaction scale, and the dispersive properties, is achieved in that the arrangement is provided in the form of a component, which comprises an optical waveguide or an optical fiber with or without cavities, wherein said arrangement consists of fiber cladding substrate or waveguide substrate (IV) with an adapted geometry, which defines the light-guiding properties of the fiber mode with designed dispersion properties (VI), and wherein the waveguide or the core carries a grown, atomically-thin layer of transition metal dichalcogenides in the form of crystallites, wherein this layer completely or partially covers the waveguide or the core.
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公开(公告)号：US20230161221A1
公开(公告)日：2023-05-25
申请号：US18087236
申请日：2022-12-22
申请人： KLA Corporation
发明人： Yung-Ho Alex Chuang , Yinying Xiao-Li , Elena Loginova , John Fielden , Baigang Zhang , Xuefeng Liu , Kelly Ann Weekley Mauser
CPC分类号： G02F1/354 , G02F1/3551 , G02F1/3548 , G02F1/3507 , G02F1/3503
摘要： A nonlinear crystal grating assembly including two integral nonlinear crystal grating structures having inverted crystal axes and having parallel spaced-apart mesas with predetermined mesa widths arranged such that, when assembled in an interdigitated configuration, the mesas of the two grating structures form an alternating grating pattern that is aligned with a propagation direction of input light, thereby creating a periodic structure for quasi-phase-matching (QPM). The nonlinear crystal grating structures are formed using strontium tetraborate, lithium triborate or another nonlinear crystal material. The nonlinear crystal grating assembly is utilized in a laser assembly in which fundamental wavelengths are doubled and/or summed using intermediate frequency conversion stages, and then a final frequency converting stage utilizes the nonlinear crystal grating assembly to double or sum one or more intermediate light beam frequencies to generate laser output light at high power and photon energy levels. A method and inspection system are also described.
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公开(公告)号：US20240302682A1
公开(公告)日：2024-09-12
申请号：US18550081
申请日：2021-03-12
发明人： Tobias Kippenberg , Sunil Bhave , Hao Tian , Johann Riemensberger , Grigorii Likhachev , Anat Siddharth
IPC分类号： G02F1/01 , G01S7/4911 , G02F1/35 , H01S5/0225 , H01S5/062 , H01S5/12 , H01S5/40 , H10N30/20 , H10N30/80 , H10N30/853 , H10N30/87
CPC分类号： G02F1/0128 , G01S7/4911 , G02F1/3511 , G02F1/354 , H01S5/0225 , H01S5/062 , H01S5/12 , H01S5/4006 , H10N30/20 , H10N30/802 , H10N30/853 , H10N30/877 , G02F2203/15
摘要： The present invention relates to an electrically tunable photonic resonator device for a component having a fast and flat actuation response. The photonic resonator device includes at least one optical waveguide with an optical interface for coupling in laser light. The photonic resonator device includes at least one optical resonator including a waveguide made of an optical resonator material. A laser light coupled via the optical waveguide is coupled into at least one optical resonator. The photonic resonator device includes at least one piezo actuator to apply mechanical stress onto the optical resonator. The optical resonator, the piezo actuator, and the optical waveguide are monolithically integrated on a common substrate of the photonic resonator device. The photonic resonator device includes a mechanical mode suppression means configured to attenuate one or more mechanical modes of oscillation caused by an AC operation of the piezo actuator.
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17.发明公开公开(公告)号：US20240195140A1
公开(公告)日：2024-06-13
申请号：US18286790
申请日：2022-04-12
CPC分类号： H01S3/109 , G02F1/354 , H01S3/1611 , H01S3/1643 , B82Y20/00
摘要： A principle which enables the generation of macroscopic Fock and sub-Poissonian states is disclosed. Generic components of the system include: an electromagnetic structure (possessing one or more electromagnetic resonances), a nonlinear electromagnetic element (such as a nonlinear crystal near or inside the structure), and a source of light. In one embodiment, stimulated gain is used to create large numbers of photons in a cavity, but with very low photon number noise (uncertainty) in the cavity, and thus acts as a Fock laser. This Fock laser is capable of producing these states due to a very sharp intensity-dependent gain (or loss) that selects a particular photon number. The disclosed system and method are robust against both atomic and optical decoherence. Various examples of the new Fock laser design are also described.
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公开(公告)号：US11868022B2
公开(公告)日：2024-01-09
申请号：US17415211
申请日：2019-12-16
发明人： Dan Perlov , Alexander Zaytsev , Anatolii Zamkov , Nikita Radionov , Aleksandr Cherepakhin , Nikolay Evtikhiev , Andrey Sadovskiy
CPC分类号： G02F1/3551 , C30B29/22 , C30B33/00 , G02F1/354 , G02F1/3548 , H01S3/109
摘要： An SrB4O7 or PbB4O7 crystal is configured with a plurality of domains with respective periodically alternating polarity of the crystal axis so that the disclosed crystal is capable of quasi-phasematching (QPM). The disclosed crystal is manufactured by a method including patterning a surface of a crystal block of SrB4O7 or PbB4O7, thereby providing patterned uniformly dimensioned regions with a uniform polarity sign on the surface. The method further includes generating a disturbance on the patterned surface, thereby inverting a sign of crystal polarity of every other region to form the SrB4O7 or SrB4O7 crystal with a plurality of domains with alternating polarity enabling a QPM mechanism.
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公开(公告)号：US11835842B2
公开(公告)日：2023-12-05
申请号：US17603233
申请日：2020-04-13
CPC分类号： G02F1/3503 , G02B27/281 , G02F1/353 , G02F1/354 , G02F1/3555 , G02F1/365 , G02F2201/02 , G02F2201/58 , G02F2203/07 , G02F2203/48
摘要： Apparatus and methods for improved HHG of ultrashort pulse laser beams. A HHG assembly includes a gas distribution block and a waveguide cartridge having a HHG hollow core waveguide. The waveguide cartridge is attached to the gas distribution block and may be removed and replaced, while the gas distribution block remains affixed within the apparatus. The gas distribution block is configured to maintain a pressure profile within the hollow core fiber. The system also includes two operating beam sensors and two actuatable mirrors. The operating beam sensors are fixed with respect to the HHG assembly. The system is aligned before operation by adjusting the actuatable mirrors to optimize a sample beam through the waveguide and recording the position of the beam on the operating beam sensors. In operation, the mirrors are actuated to maintain the same positions of the input beam on the operating beam sensors.
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公开(公告)号：US11815784B2
公开(公告)日：2023-11-14
申请号：US18087236
申请日：2022-12-22
申请人： KLA Corporation
发明人： Yung-Ho Alex Chuang , Yinying Xiao-Li , Elena Loginova , John Fielden , Baigang Zhang , Xuefeng Liu , Kelly Ann Weekley Mauser
CPC分类号： G02F1/354 , G02F1/3503 , G02F1/3507 , G02F1/3548 , G02F1/3551
摘要： A nonlinear crystal grating assembly including two integral nonlinear crystal grating structures having inverted crystal axes and having parallel spaced-apart mesas with predetermined mesa widths arranged such that, when assembled in an interdigitated configuration, the mesas of the two grating structures form an alternating grating pattern that is aligned with a propagation direction of input light, thereby creating a periodic structure for quasi-phase-matching (QPM). The nonlinear crystal grating structures are formed using strontium tetraborate, lithium triborate or another nonlinear crystal material. The nonlinear crystal grating assembly is utilized in a laser assembly in which fundamental wavelengths are doubled and/or summed using intermediate frequency conversion stages, and then a final frequency converting stage utilizes the nonlinear crystal grating assembly to double or sum one or more intermediate light beam frequencies to generate laser output light at high power and photon energy levels. A method and inspection system are also described.
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