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公开(公告)号：EP4428610A2
公开(公告)日：2024-09-11
申请号：EP24191506.5
申请日：2020-07-13
IPC分类号： G02F1/365
CPC分类号： G02F1/3513 , G02F1/365 , G02F1/3528 , G02B6/02328
摘要： A radiation source comprises: a hollow core optical fiber, a working medium; and a pulsed pump radiation source. The hollow core optical fiber comprises a body and has a hollow core. The working medium is disposed within the hollow core. The pulsed pump radiation source is arranged to produce pulsed pump radiation that is received by, and propagates through, the hollow core from an input end to an output end. Parameters of the pulsed pump radiation, the hollow core optical fiber and the working medium are configured to allow soliton self-compression of the pulsed pump radiation so as to change a spectrum of the pulsed pump radiation so as to form output radiation.
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公开(公告)号：EP4231090A1
公开(公告)日：2023-08-23
申请号：EP22157166.4
申请日：2022-02-17
发明人： NI, Yongfeng
IPC分类号： G02F1/35 , H01S3/00 , H01S3/23 , G02B6/02 , H01S3/06 , H01S5/42 , G03F7/20 , G01B11/00 , G02F1/365 , H01S3/0941
摘要： Disclosed is a supercontinuum radiation source comprising a pump laser arrangement for generating pump radiation and comprising a plurality of pump laser heads; a radiation combiner for combining the respective pump radiation from each pump laser head, and a non-linear fiber for receiving said pump radiation so as to excite a working medium within the non-linear fiber to generate said supercontinuum radiation. Each pump laser head has dimensions no greater than 5cm in any direction. Alternatively, or in addition the supercontinuum radiation source further comprises a control arrangement for controlling the pump laser arrangement, said control arrangement being configured for non-simultaneous emission of pulses from each pump laser head.
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4.发明公开
公开(公告)号：EP4141531A1
公开(公告)日：2023-03-01
申请号：EP22189180.7
申请日：2022-08-08
发明人： AJGAONKAR, Mahesh, Upendra , ABDOLVAND, Amir , PONGERS, Willem, Richard , BASELMANS, Johannes, Jacobus, Matheus , NI, Yongfeng
IPC分类号： G02F1/365
摘要： Radiation source assembly and method for generating broadband radiation by spectral broadening. The radiation source assembly comprises a pump assembly configured to provide broadband input radiation. The pump assembly comprises a pump source configured to provide first radiation at a pump wavelength, and a broadband assembly configured to provide second radiation comprising a continuous wavelength range, wherein the first radiation and the second radiation form the broadband input radiation. The radiation source assembly further comprises an optical fibre configured to receive the broadband input radiation. The optical fibre comprises a core configured along at least a part of the length of the fibre to guide the received broadband input radiation during propagation through the fibre, so as to generate broadband radiation by spectral broadening to be output by the fibre.
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公开(公告)号：EP4060404A1
公开(公告)日：2022-09-21
申请号：EP22155985.9
申请日：2022-02-09
摘要： A multiple wavelength light source device and associated method for generating output radiation comprising a plurality of discrete output wavelength bands. The multiple wavelength light source device comprises a pump radiation source arrangement configured to generate input radiation comprising at least a first frequency component and a second frequency component; and a hollow-core photonic crystal fiber configured to confine a working medium. The hollow-core photonic crystal fiber is configured to receive said input radiation and to generate said plurality of discrete output wavelength bands distributed over a wavelength range of interest via a seed-assisted cascaded four wave mixing (FWM) process in said working medium.
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公开(公告)号：EP3796080A1
公开(公告)日：2021-03-24
申请号：EP19198105.9
申请日：2019-09-18
摘要： A radiation source comprises: a hollow core optical fiber, a working medium; and a pulsed pump radiation source. The hollow core optical fiber comprises a body and has a hollow core. The working medium is disposed within the hollow core. The pulsed pump radiation source is arranged to produce pulsed pump radiation that is received by, and propagates through, the hollow core from an input end to an output end. Parameters of the pulsed pump radiation, the optical fiber and the working medium are configured to allow soliton self-compression of the pulsed pump radiation so as to change a spectrum of the pulsed pump radiation so as to form output radiation. In some embodiments, a length of the optical fiber is such that the output end substantially coincides with a position at which a temporal extent of the pulsed pump radiation is minimal. In some embodiments, a pulse duration of the input pulsed pump radiation is greater than 50 fs.
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7.发明公开
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8.发明公开
公开(公告)号：EP4163715A1
公开(公告)日：2023-04-12
申请号：EP21201043.3
申请日：2021-10-05
发明人： AJGAONKAR, Mahesh, Upendra , ABDOLVAND, Amir , PONGERS, Willem, Richard , BASELMANS, Johannes, Jacobus, Matheus , NI, Yongfeng
摘要： Radiation source assembly and method for generating broadband radiation by spectral broadening. The radiation source assembly comprises a pump assembly configured to provide broadband input radiation. The pump assembly comprises a pump source configured to provide first radiation at a pump wavelength, and a broadband assembly configured to provide second radiation comprising a continuous wavelength range, wherein the first radiation and the second radiation form the broadband input radiation. The radiation source assembly further comprises an optical fibre configured to receive the broadband input radiation. The optical fibre comprises a core configured along at least a part of the length of the fibre to guide the received broadband input radiation during propagation through the fibre, so as to generate broadband radiation by spectral broadening to be output by the fibre.
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公开(公告)号：EP3792673A1
公开(公告)日：2021-03-17
申请号：EP19197449.2
申请日：2019-09-16
摘要： An assembly for collimating broadband radiation, the assembly comprising: a convex refractive singlet lens having a first spherical surface for coupling the broadband radiation into the lens and a second spherical surface for coupling the broadband radiation out of the lens, wherein the first and second spherical surfaces have a common centre; and a mount for holding the convex refractive singlet lens at a plurality of contact points having a centroid coinciding with the common centre.
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公开(公告)号：EP3770677A1
公开(公告)日：2021-01-27
申请号：EP20185490.8
申请日：2020-07-13
摘要： A radiation source comprises: a hollow core optical fiber, a working medium; and a pulsed pump radiation source. The hollow core optical fiber comprises a body and has a hollow core. The working medium is disposed within the hollow core. The pulsed pump radiation source is arranged to produce pulsed pump radiation that is received by, and propagates through, the hollow core from an input end to an output end. Parameters of the pulsed pump radiation, the optical fiber and the working medium are configured to allow soliton self-compression of the pulsed pump radiation so as to change a spectrum of the pulsed pump radiation so as to form output radiation. In some embodiments, a length of the optical fiber is such that the output end substantially coincides with a position at which a temporal extent of the pulsed pump radiation is minimal.
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