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公开(公告)号：US20220416497A1
公开(公告)日：2022-12-29
申请号：US17360359
申请日：2021-06-28
发明人： Liang Chang , Fangqin Li , Riccardo Leto
摘要： A laser apparatus includes at least one electro-optic (EO) medium through which a polarized laser beam passes for N times, forming a plurality of first-pass to Nth-pass beams, by reflecting the polarized laser beam from at least one reflection mirror, and a power supplier configured to alternately provide a 1/N of a half-wave (λ/2) or quarter-wave (λ/4) voltage and remove the voltage to the EO medium, λ being a wavelength of the polarized laser beam. The at least one EO medium is tilted at angle θ and/or angle di with respect to one of the plurality of first-pass to Nth-pass beams. The at least one EO medium comprises a M number of EO mediums, and the power supplier is configured to alternately provide a 1/M*N of a half-wave (λ/2) or quarter-wave (λ/4) voltage and remove the voltage to each of the M number of EO mediums.
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公开(公告)号：US20240288706A1
公开(公告)日：2024-08-29
申请号：US18113694
申请日：2023-02-24
发明人： Fangqin Li , Xinbing Liu , Carlton Brule , Liang Chang , Riccardo Leto
IPC分类号： G02B27/62
CPC分类号： G02B27/62
摘要： A method of applying a precompensation for shrinkage during a real-time assembly of an optical component. Prior to the real-time assembly, (a) the optical component is aligned to obtain a reference position (href); (b) pre-assembly laser beam data (reference beam size (ωref), reference beam position (pref), beam size (ω), and beam position (p)) is plotted; (c) the optical component is aligned in one or more positions (h) and repeating step (b) for each position (h); (d) adhesive is applied to the base; (e) curing the adhesive; (f) test laser beam data (beam size (ωcure) and beam position (pcure)) is plotted; (g) position of the optical component (hcure) is determined based on pre-assembly and test laser beam data; (h) a precompensation value (|href−hcure|) is calculated; and (i) the optical component is aligned at a height (|href−hcure|+href) before performing step (e) during the real-time assembly.
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公开(公告)号：US11973303B2
公开(公告)日：2024-04-30
申请号：US17360359
申请日：2021-06-28
发明人： Liang Chang , Fangqin Li , Riccardo Leto
CPC分类号： H01S3/115 , G02F1/0311 , G02F1/0322
摘要： A laser apparatus includes at least one electro-optic (EO) medium through which a polarized laser beam passes for N times, forming a plurality of first-pass to Nth-pass beams, by reflecting the polarized laser beam from at least one reflection mirror, and a power supplier configured to alternately provide a 1/N of a half-wave (λ/2) or quarter-wave (λ/4) voltage and remove the voltage to the EO medium, λ being a wavelength of the polarized laser beam. The at least one EO medium is tilted at angle θ and/or angle ϕ with respect to one of the plurality of first-pass to Nth-pass beams. The at least one EO medium comprises a M number of EO mediums, and the power supplier is configured to alternately provide a 1/M*N of a half-wave (λ/2) or quarter-wave (λ/4) voltage and remove the voltage to each of the M number of EO mediums.
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