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公开(公告)号：WO2022132599A1
公开(公告)日：2022-06-23
申请号：PCT/US2021/062975
申请日：2021-12-11
Applicant: FACEBOOK TECHNOLOGIES, LLC
Inventor： VALENTINE, Gareth , SCHELLER, Maik Andre , BONAR, James Ronald
Abstract: A light source based on an optical frequency mixer is disclosed. The light source has a first laser for emitting light at a first optical frequency, and a plurality of second lasers for emitting light at different second optical frequencies. The optical frequency mixer provides output light beams at mixed optical frequencies of the first and second lasers. Wavelength of output light beams may be tuned by tuning wavelength of any of the fist or second lasers. In this manner, RGB wavelength-tunable light sources may be constructed based on red or near-infrared lasers. The wavelength tunability of the output light beams may be used to angularly scan or refocus the light beams.
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公开(公告)号：WO2022096413A1
公开(公告)日：2022-05-12
申请号：PCT/EP2021/080255
申请日：2021-11-01
Applicant: DEUTSCHES ELEKTRONEN-SYNCHROTRON DESY
Inventor： MAIER, Andreas , WINKELMANN, Lutz
Abstract: A method for providing an ensemble of beamlets effectively acting as a high-energy laser pulse is disclosed. According to the method, a beamlet pattern with a plurality of spatially distributed laser beamlets is provided. The beamlets are spread in time by introducing a different temporal delay to each of the beamlets. The beamlets are spectrally broadened. The beamlets are incoherently combined in space and time to provide the ensemble of beamlets. Also disclosed is a method for accelerating charged particles. Further disclosed is an optical arrangement for providing an ensemble of beamlets effectively acting as a high-energy laser pulse. The optical arrangement comprises a beamlet generating device providing a beamlet pattern of spatially distributed laser beamlets, a step optic for spreading the spatially distributed laser beamlets in time, a spectral broadening device, and a combining device for incoherently combining the spectrally broadened beamlets in space and time to provide the ensemble of beamlets. Additionally disclosed is a laser-plasma accelerator comprising the optical arrangement.
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公开(公告)号：WO2022083105A1
公开(公告)日：2022-04-28
申请号：PCT/CN2021/092046
申请日：2021-05-07
Applicant: 浙江德扬精密仪器有限公司
Inventor： 朱勇波
Abstract: 本发明公开了一种适用于光参量振荡器的晶体切换装置，包括切换盘、传动盘、连接件、定位装置，所述切换盘、传动盘同轴设置在固定轴上，所述切换盘位于所述传动盘的上方，所述切换盘设置有多个分盘，所述分盘不重叠，每个所述分盘的外沿设置有所述连接件，所述连接件的自由端设置有定位孔，转动所述传动盘带动所述切换盘的分盘转动至所述定位装置时停止，所述定位装置伸出定位轴与所述定位孔完成定位结合，使得每个所述分盘上的所述连接件固定的晶体完成切换。本发明能够在激光系统的内部自动切换备用晶体，确保振荡器的续航运行。
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公开(公告)号：WO2022076993A1
公开(公告)日：2022-04-14
申请号：PCT/US2021/071725
申请日：2021-10-05
Applicant: THE BOEING COMPANY
Inventor： YAP, Daniel
Abstract: An optical waveguide structure (100) comprising a nonlinear optical waveguide (102), a central region (114), a first side region (116), and a second side region (118). The central region (114) is located within the nonlinear optical waveguide (102), wherein the central reg1.on (114) comprises a non1inear optical material (104). The first side region (116) is on a first side (120) of the central region (114) and the second side region (118) is on a second side of the central region (114). The nonlinear optical material (104) comprising the central region (114) has a first nonlinear coefficient (124) that is larger than a second nonlinear coefficient (126) of a second material (119) comprising the first side region (116) and the second side region (118).
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公开(公告)号：WO2022076992A1
公开(公告)日：2022-04-14
申请号：PCT/US2021/071723
申请日：2021-10-05
Applicant: THE BOEING COMPANY
Inventor： YAP, Daniel , ALVARADO, Ivan , WANG, Shuoqin , HUANG, Biqin , LADD, Thaddeus
Abstract: A method, apparatus, and system for non-linear optical process. A first light (115) of a first wavelength (122) is routed in a first loop (142) in a main nonlinear optical waveguide (106). The first loop (142) has a first length (144) for the first light (115) of the first wavelength (122). A second light (124) of a second wavelength (126) is routed in a second loop (154) that includes portions of the main nonlinear optical waveguide (106) and a first extension optical waveguide (108). The second loop (154) has a second length (158) for the second light (124) of the second wavelength (126). A third light (128) of a third wavelength (130) is routed in a third loop (162) that include portions of the main nonlinear optical waveguide (106) and a second extension optical waveguide (110). The third loop (162) has a third length (164) for the third light (128) of the third wavelength (130).
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Patent Agency Ranking
公开(公告)号：WO2022076991A1
公开(公告)日：2022-04-14
申请号：PCT/US2021/071722
申请日：2021-10-05
Applicant: THE BOEING COMPANY
Inventor： YAP, Daniel , WANG, Shuoqin , ALVARADO, Ivan , YURASH, Brett , LADD, Thaddeus
Abstract: An optical waveguide structure (100, 600, 700, 1400, 2200, 2700, 3900) comprises a nonlinear optical waveguide (102, 602, 702, 800, 2202, 2702, 3502, 3902) comprising a nonlinear optical material (104) having a second order nonlinear coefficient (108) that changes with a direction of light propagation (110). A first portion (112) of the nonlinear optical waveguide (102, 602, 702, 800, 2202, 2702, 3502, 3902) in which a light (116) propagating through the first portion (112) is affected by a positive value (118) of the second order nonlinear coefficient (108). A second portion (114) of the nonlinear optical waveguide (102, 602, 702, 800, 2202, 2702, 3502, 3902) in which the light (116) propagating through the first portion (112) is affected by a negative value (120) of the second order nonlinear coefficient (108), wherein a set of dimensions (122) in the nonlinear optical waveguide (102, 602, 702, 800, 2202, 2702, 3502, 3902) in the first portion (112) and the second portion (114) is selected to cause the light (116) to have a phase walk- off (124) that is an odd multiple (126) of 180 degrees.
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公开(公告)号：WO2022056698A1
公开(公告)日：2022-03-24
申请号：PCT/CN2020/115434
申请日：2020-09-16
Applicant: 山东大学
IPC: G02F1/35
Abstract: 一种参量光的产生方法及应用，属于激光与非线性光学领域。方法包括：提供非线性光学材料，非线性光学材料满足和频相位匹配条件，即同时满足ω p+ω i＝ω s的能量守恒条件和n pω p+n iω i＝n sω s的动量守恒条件；将波长为λ p的激光作为泵浦光（2），入射到非线性光学材料中，非线性光学材料将输出波长为λ s的信号光（6），即为可调谐和频参量光。以光学和频为基本原理，实现的是频率上转换，便于利用简单的红外光源获得可见及紫外光源，具有生产成本低、体积小、结构简单紧凑、调整方便、性能稳定、可调谐波段宽等优势，可广泛应用于激光加工、精密测量、激光显示、信息存储、医疗、生物、军事、科研等领域。
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18.发明申请
公开(公告)号：WO2022056026A1
公开(公告)日：2022-03-17
申请号：PCT/US2021/049505
申请日：2021-09-08
Inventor： PFISTER, Olivier , GONZALEZ-ARCINIEGAS, Carlos , ZHU, Xuan , CHANG, Chun-Hung , PE'ER, Avi
Abstract: Systems and methods are disclosed for generating cluster quantum states usable for quantum computing. An example system can generate a plurality of qumodes. The plurality of qumodes can include at least two successive qumodes in frequency domain, wherein a frequency spacing between two successive qumodes is equal to a free-spectral range of an optical frequency comb. The plurality of qumodes can include a plurality of bipartite entangled states. A cluster quantum state can be generated by modulating a phase of a portion of the optical fields associated with the plurality of qumodes received from the optical frequency comb, at one or more modulation frequencies. In some embodiments, each of the one or more modulation frequencies can be equal to an integral multiple of the free-spectral-range. In certain embodiments, a property of a cluster graph (such as a dimension of the cluster graph) associated with the cluster quantum state can be controlled by adjusting one or more modulation frequencies.
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公开(公告)号：WO2022048447A1
公开(公告)日：2022-03-10
申请号：PCT/CN2021/113428
申请日：2021-08-19
Applicant: 济南量子技术研究院
Inventor： 周飞
Abstract: 本发明公开了一种基于PPKTP晶体的多模接收小型化纠缠源系统，其包括泵浦光源1、泵浦光传输模块、纠缠装置4、第一收集装置5-1和第二收集装置5-2。其中，第一收集装置5-1和第二收集装置5-2在结构上不对称。第一收集装置5-1包括第一多模光纤、时间滤波单元6和空间滤波单元8，且所述时间滤波单元6位于所述空间滤波单元8前方。第二收集装置5-2中包括空间滤波单元9和第二多模光纤。借助本发明，可以以精简的结构稳定地提供高偏振对比度、高亮度和品质的纠缠光。
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公开(公告)号：WO2022037877A1
公开(公告)日：2022-02-24
申请号：PCT/EP2021/070261
申请日：2021-07-20
Applicant: ASML NETHERLANDS B.V.
Inventor： COTTAAR, Jeroen
Abstract: Disclosed is a method for performing a measurement of an exposed pattern in photoresist on a substrate and an associated metrology device. The method comprises imparting a beam of measurement radiation on said exposed pattern over a measurement area of a size which prevents or mitigates photoresist damage from the measurement radiation; capturing scattered radiation comprising said measurement radiation subsequent to it having been scattered from said exposed pattern and detecting the scattered radiation on at least one detector. A value for a parameter of interest is determined from the scattered radiation.
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