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1. 发明公开

EP4331066A1 VISIBLE LIGHT SOURCE INCLUDING INTEGRATED VCSELS AND INTEGRATED PHOTONIC CAVITIES 审中-实审
公开(公告)号：EP4331066A1
公开(公告)日：2024-03-06
申请号：EP22727527.8
申请日：2022-04-23
申请人： META PLATFORMS TECHNOLOGIES, LLC
发明人： BONAR, James Ronald , SCHELLER, Maik Andre , VALENTINE, Gareth John , SHI, Zhimin
IPC分类号： H01S5/183 , H01S5/026 , H01S5/00 , G02F1/39 , H01L33/46 , H01S5/14 , H01S3/108

2. 发明公开

EP4300185A1 215-222 NM WAVELENGTH LASER BEAM GENERATING APPARATUS 审中-实审
公开(公告)号：EP4300185A1
公开(公告)日：2024-01-03
申请号：EP22759711.9
申请日：2022-02-24
申请人： Josho Gakuen Educational Foundation , TOSOH SGM CORPORATION
发明人： KAMIMURA, Tomosumi , HORIKOSHI, Hideharu , UMEMURA, Nobuhiro
IPC分类号： G02F1/37 , G02F1/39
摘要： The present invention relates to a 215- to 222-nm wavelength laser light generating device comprising: an excitation light source part for converting a laser light with a wavelength of 1030 to 1064 nm to a second harmonic, and generating a laser light with a wavelength of 515 to 532 nm; an optical parametric oscillating part for generating a signal light with a wavelength of 858 to 887 nm and an idler light with a wavelength of 1288 to 1330 nm using the laser light with the wavelength of 515 to 532 nm as an excitation light; a separating part for separating the signal light and the idler light; a first wavelength converting part for generating a fourth harmonic from the signal light; a second wavelength converting part for generating a deep ultraviolet light with a wavelength of 215 to 222 nm by sum frequency with a second harmonic of the excitation light from the idler light; and a coupling part for coupling the fourth harmonic from the first wavelength converting part and the deep ultraviolet light from the second wavelength converting part. The present invention provides a laser generating device that enables to generate simply and efficiently a pulse laser light with a wavelength of 215 to 222 nm including a wavelength of 222 nm disinfecting microorganisms.

3. 发明授权

EP3911999B1 TRANSPOSITION EN FREQUENCE D'UN SIGNAL OPTIQUE PAR MELANGE DE PLUSIEURS ONDES 有权
公开(公告)号：EP3911999B1
公开(公告)日：2023-12-06
申请号：EP20705424.8
申请日：2020-01-15
发明人： COLMAN, Pierre , PARRIAUX, Alexandre , HAMMANI, Kamal , MILLOT, Guy
IPC分类号： G02F1/35 , G02F1/39

4. 发明公开

EP4268015A1 POWER-SCALABLE OPTICAL SYSTEM FOR NONLINEAR FREQUENCY CONVERSION 审中-实审
公开(公告)号：EP4268015A1
公开(公告)日：2023-11-01
申请号：EP21836500.5
申请日：2021-12-13
申请人： PAUL SCHERRER INSTITUT , ETH Zürich
发明人： ANTOGNINI, Aldo , SCHUHMANN, Karsten
IPC分类号： G02F1/35 , G02F1/37 , G02F1/39 , H01S3/00 , H01S3/109

5. 发明公开

EP4252068A1 OPTICAL PARAMETRIC OSCILLATOR SYSTEM 审中-实审
公开(公告)号：EP4252068A1
公开(公告)日：2023-10-04
申请号：EP21820311.5
申请日：2021-11-26
申请人： Heriot-Watt University
发明人： TRAVERS, John C. , BELLI, Federico
IPC分类号： G02F1/39 , G02F1/35 , G02B6/02

6. 发明公开

EP4207513A1 OPTICAL FIBER AMPLIFICATION APPARATUS 审中-实审
公开(公告)号：EP4207513A1
公开(公告)日：2023-07-05
申请号：EP21874337.5
申请日：2021-09-24
申请人： Huawei Technologies Co., Ltd.
发明人： YU, Yongze , XIONG, Di
IPC分类号： H01S3/067 , G02F1/39 , G02F1/383 , H04J14/02
摘要： An optical fiber amplification apparatus is disclosed, including an optical receiving port (201), a first optical output port (202), a second optical output port (203), a gain medium (204), a pump laser (205), reflection films (206), and a transmission-reflection film (207). The pump laser (205) activates a function of the gain medium (204) to amplify an optical signal. A multiplexed optical signal including a first-waveband optical signal and a second-waveband optical signal is incident onto the gain medium (204) through the optical receiving port (201). The reflection films (206) enable the multiplexed optical signal to be reflected back and forth in the gain medium (204). After the first-waveband optical signal reaches a first target gain, the first-waveband optical signal is output from the gain medium (204) to the first optical output port (202) through the transmission-reflection film (207). The second-waveband optical signal is reflected back and forth and continuously amplified in the gain medium (204). After the second-waveband optical signal reaches a second target gain, the second-waveband optical signal is output from the gain medium (204) to the second optical output port (203). This optical fiber amplification apparatus is configured to implement overall amplification for at least two bands and implement flexible gain control.

7. 发明公开

EP4167026A1 MULTI-MODE RECEPTION MINIATURISED ENTANGLEMENT SOURCE SYSTEM BASED ON PPKTP CRYSTAL 审中-实审
公开(公告)号：EP4167026A1
公开(公告)日：2023-04-19
申请号：EP21863514.2
申请日：2021-08-19
申请人： Jinan Institute of Quantum Technology
发明人： ZHOU, Fei
IPC分类号： G02F1/355 , G02F1/35 , G02F1/39
摘要： Disclosed in the present invention is a multi-mode reception miniaturised entanglement source system based on a PPKTP crystal, comprising a pump light source 1, a pump light transmission module, an entanglement apparatus 4, a first collection apparatus 5-1, and a second collection apparatus 5-2. The first collection apparatus 5-1 and the second collection apparatus 5-2 are structurally asymmetric. The first collection apparatus 5-1 comprises a first multi-mode optical fibre, a time filter unit 6, and a spatial filter unit 8, the time filter unit 6 being positioned in front of the spatial filter unit 8. The second collection apparatus 5-2 comprises a spatial filter unit 9 and a second multi-mode optical fibre. By means of the present invention, high polarisation contrast, high brightness, and high quality entangled light can be stably provided in a streamlined structure.

8. 发明授权

EP3685224B1 LIGHT SOURCE WITH MULTI-LONGITUDINAL MODE CONTINUOUS WAVE OUTPUT BASED ON MULTI-MODE RESONANT OPO TECHNOLOGY 有权
公开(公告)号：EP3685224B1
公开(公告)日：2023-04-19
申请号：EP18786097.8
申请日：2018-09-18
发明人： MUELLER, Frank
IPC分类号： G02F1/35 , G02F1/39

9. 发明授权

EP3895263B1 WAVELENGTH-CONTROLLED BEAM STABILIZER FOR SPECTRALLY BEAM COMBINED LASER SOURCES 有权
公开(公告)号：EP3895263B1
公开(公告)日：2023-04-12
申请号：EP19912188.0
申请日：2019-11-22
发明人： GOODNO, Gregory D.
IPC分类号： H01S3/13 , H01S3/131 , H01S3/23 , G02B27/10 , G02F1/39 , H01S3/00 , H01S3/067 , H01S5/40

10. 发明公开

EP4113206A1 FREQUENCY-COMB GENERATION BASED ON ELECTRO-OPTIC PHASE-CODE MODE-LOCKING FOR CIRCULAR-RANGING OCT 审中-实审
公开(公告)号：EP4113206A1
公开(公告)日：2023-01-04
申请号：EP22191202.5
申请日：2021-01-29
申请人： The General Hospital Corporation
发明人： Vakoc, Benjamin , Kim, Tae, Shik
IPC分类号： G02F2/00 , G02F1/39 , A61B5/00 , G01B9/02091 , H01S3/067 , G02B6/293 , G02F1/21
摘要： A source for providing electromagnetic radiation within a particular spectral range, including: a ring-shaped optical resonator for circulating a plurality of wavelength bands including: a first optical phase modulator, a first chromatic dispersion device, a second optical phase modulator, a multi-line spectral domain filter, a second chromatic dispersion device, and an optical amplifier; a controller coupled to the first optical phase modulator and the second optical phase modulator which is configured to drive the first optical phase modulator with a first waveform and the second optical phase modulator with a second waveform, the first chromatic dispersion device being configured between the first optical phase modulator and the second optical phase modulator to provide chromatic dispersion so as to subject each of the plurality of wavelength bands to a respective plurality of different time delays, the first optical phase modulator and the second optical phase modulator being configured to create spectral broadening by the first optical phase modulator of each of the plurality of wavelength bands and spectral recovery by the second optical phase modulator of a particular wavelength band of the plurality of wavelength bands by modulating a first phase using the first optical phase modulator driven by the first waveform and, after a particular time delay, modulating a second phase using the second optical phase modulator driven by the second waveform comprising an inverse of the first waveform, the particular time delay being determined so as to create spectral recovery for the particular wavelength band of the plurality of wavelength bands, the multi-line spectral domain filter being configured to provide multi-line spectral filtering with narrow bandwidths in order to induce power loss for each of the plurality of wavelength bands except for the particular wavelength band, the second chromatic dispersion device being configured to provide chromatic dispersion compensation to an output of the multi-line spectral domain filter in order to compensate a group delay dispersion within the optical resonator and match a roundtrip frequency for each of the plurality of wavelength bands, and the first and second waveforms being configured to create a periodic phase modulation for recovery of the plurality of wavelength bands at a frequency that is an integer multiple of a roundtrip frequency of the optical resonator.

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