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公开(公告)号：US20170310070A1
公开(公告)日：2017-10-26
申请号：US15512607
申请日：2015-07-22
Applicant: FEHA Lasertec GmbH
Inventor： Gisbert Staupendahl
CPC classification number: H01S3/117 , G02B27/0966 , H01S3/005 , H01S3/0064 , H01S3/0071 , H01S3/10 , H01S3/11 , H01S3/127 , H01S3/2232
Abstract: A Q-switched CO2 laser material processing system with acousto-optic modulators (AOM) is employed, on the one hand, inside the resonator for Q-switching the CO2 laser and, on the other hand, externally for efficient suppression of the radiation feedback between a laser and workpiece. The frequency shift of the radiation diffracted at the AOM is taken into account which exactly corresponds to the excitation frequency of the acoustic wave in the AOM crystal under the aspect of the amplification of the radiation in the active medium. Since this frequency shift significantly reduces the amplification of the radiation, it has to be avoided in the Q-switching process, which is achieved, by means of a tandem of two AOMs with identical excitation frequencies but with the acoustic waves propagating in opposite directions in the crystal. The frequency shift advantageously suppresses radiation feedback between the laser and workpiece.
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公开(公告)号：US09774163B2
公开(公告)日：2017-09-26
申请号：US13792173
申请日：2013-03-10
Applicant: Fianium Ltd.
IPC: H01S3/11 , G02B21/16 , G02F1/35 , H01S3/23 , H01S3/10 , H01S3/102 , H01S3/108 , G01N21/64 , G02F1/365
CPC classification number: H01S3/11 , G01N21/6458 , G01N2021/6419 , G01N2021/6441 , G01N2201/0697 , G02B21/16 , G02F1/353 , G02F1/365 , G02F2001/3528 , H01S3/10 , H01S3/10046 , H01S3/1024 , H01S3/108 , H01S3/2308
Abstract: Variable repetition rate and wavelength optical pulse source, comprising a fixed or variable repetition rate source of supercontinuum pulses; a wavelength tunable optical bandpass filter to filter the supercontinuum pulses at two or more wavelengths, wherein said source of supercontinuum pulses and said wavelength tunable optical bandpass filter are configured such that the optical pulse source can provide variable repetition rate and variable wavelength optical pulses including a series of repetition rates with selected wavelength-varying pulse trains.
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公开(公告)号：US20170250518A1
公开(公告)日：2017-08-31
申请号：US15431111
申请日：2017-02-13
Applicant: NKT Photonics A/S
IPC: H01S3/13
CPC classification number: H01S3/11 , G01N21/6458 , G01N2021/6419 , G01N2021/6441 , G01N2201/0697 , G02B21/16 , G02F1/353 , G02F1/365 , G02F2001/3528 , H01S3/10 , H01S3/10046 , H01S3/1024 , H01S3/108 , H01S3/2308
Abstract: A method of providing optical supercontinuum pulses can comprise generating optical pump pulses with an optical pump laser, the optical pump pulses having a pump pulse repetition rate; launching optical pump pulses into a nonlinear optical element comprising an optical fiber; generating optical supercontinuum pulses from the optical pump pules via spectral broadening within the optical fiber; selectively providing a plurality of different repetition rates for the optical pump pulses so as to generate optical supercontinuum pulses having different repetition rates; and providing nominally identical spectral broadening of the optical supercontinuum pules having the different repetition rates.
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公开(公告)号：US20170237222A1
公开(公告)日：2017-08-17
申请号：US15332302
申请日：2016-10-24
Applicant: Genia Photonics Inc.
Inventor： Alain Villeneuve
CPC classification number: H01S3/1061 , H01S3/02 , H01S3/06712 , H01S3/0675 , H01S3/0809 , H01S3/10 , H01S3/10053 , H01S3/1109
Abstract: A laser for emitting simultaneously a first and second laser lights having respectively first and second wavelength differing from each other. The laser comprises: an optical resonator defining a first optical path and a second optical path, the first laser light travelling along the first optical path and the second laser light travelling along the second optical path; a modulated gain element inserted in the optical resonator for amplifying the first and second laser lights as the first and second laser lights propagate in the optical resonator respectively along the first and second optical paths, the modulated gain element having a variable gain modulated with a modulation period, round trip times of the first and second laser lights along respectively the first and second optical paths being respective integer multiples of the modulation period; and an output port for releasing the first and second laser lights from the optical resonator.
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公开(公告)号：US20170205633A1
公开(公告)日：2017-07-20
申请号：US15198063
申请日：2016-06-30
Applicant: Boe Technology Group Co., Ltd.
Inventor： Xiaowei Xu , Xiaolong Li , Liangjian Li
IPC: G02B27/14 , B23K26/00 , B23K26/067 , B23K26/0622 , G02B27/10 , G02B26/02
CPC classification number: G02B27/144 , B23K26/0006 , B23K26/0622 , B23K26/0643 , B23K26/067 , B23K2103/56 , G02B17/023 , G02B26/02 , G02B27/106 , H01L21/268 , H01S3/0057 , H01S3/10
Abstract: The present disclosure discloses a laser pulse delay system and a laser annealing system. The laser pulse delay system comprises: a beam splitter, a first reflective unit and a delay unit. The beam splitter is configured to split a laser beam emitted by a laser into a first beam and a second beam, such that the first beam is transmitted to the first reflective unit and the second beam is transmitted to the delay unit. The first reflective unit is configured to reflect the first beam it receives, such that the reflected first beam is transmitted to a component to be irradiated. The delay unit is configured to delay the second beam it receives, such that the delayed second beam is transmitted to the component to be irradiated.
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Patent Agency Ranking
86.发明申请公开(公告)号：US20170199390A1
公开(公告)日：2017-07-13
申请号：US15313028
申请日：2015-05-26
Applicant: THALES
Inventor： Jérôme BOURDERIONNET , Arnaud BRIGNON
CPC classification number: G02B27/1086 , H01S3/005 , H01S3/08009 , H01S3/0826 , H01S3/10 , H01S3/2383
Abstract: A system based on recombination by superposition using a diffractive optical element DOE to combine the beams is provided. An optical diffractive assembly is placed upstream of a diffractive optical element to make it possible, via an appropriate imaging system, to optimize the combining efficiency in the ultra-short pulse regime.
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公开(公告)号：US09653879B2
公开(公告)日：2017-05-16
申请号：US15087307
申请日：2016-03-31
Applicant: Hisense Broadband Multimedia Technologies, Ltd. , Hisense USA Corp. , Hisense International Co., Ltd.
Inventor： Qiang Zhang , Qisheng Zhao , Shihai Yang
CPC classification number: H01S3/136 , H01S3/0085 , H01S3/0912 , H01S3/094076 , H01S3/10 , H01S3/107 , H01S5/0085 , H01S5/06213 , H04B10/00
Abstract: The disclosure provides an optical module, including a laser, the laser including a light emitting region and a modulation region, and light emitted by the light emitting region emitting toward the modulation region; a first driver circuit, the first driver circuit being connected to the light emitting region, so that the light emitting region emits light with adjusted optical power; and a second driver circuit, the second driver circuit being connected to the modulation region, so that the modulation region changes the optical power of the light emitted from the light emitting region.
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公开(公告)号：US09627848B1
公开(公告)日：2017-04-18
申请号：US14989276
申请日：2016-01-06
Applicant: Microsemi Storage Solutions (U.S.), Inc.
Inventor： Jean-Francois Delage , Guillaume Fortin , Tiberiu Galambos
CPC classification number: H01S5/042 , H01S3/10 , H01S5/0427 , H01S5/06213 , H01S5/06825
Abstract: A method and apparatus for powering up and powering down a laser diode and its driver are disclosed. The disclosed method and apparatus enable the use of deep sub-micron CMOS technology to build a laser diode driver (LDD), while ensuring the low voltage limits prescribed by such technology are not exceeded. Building an LDD with deep sub-micron CMOS technology pushes circuit integration further ahead, bringing cost of LDDs and required board circuits down.
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公开(公告)号：US09564731B2
公开(公告)日：2017-02-07
申请号：US13792172
申请日：2013-03-10
Applicant: Fianium Ltd.
IPC: H01S3/11 , G02B21/16 , G02F1/35 , H01S3/23 , H01S3/10 , H01S3/102 , H01S3/108 , G01N21/64 , G02F1/365
CPC classification number: H01S3/11 , G01N21/6458 , G01N2021/6419 , G01N2021/6441 , G01N2201/0697 , G02B21/16 , G02F1/353 , G02F1/365 , G02F2001/3528 , H01S3/10 , H01S3/10046 , H01S3/1024 , H01S3/108 , H01S3/2308
Abstract: A method of providing supercontinuum illumination in applications involving the excitation of fluorescence, comprising generating, at an optical pump laser, optical pump pulses at a pump pulse repetition rate; selectively controlling with an optical modulator the launch of pump pulses into a nonlinear optical element comprising an optical fiber at a variable, lower repetition rate to thereby selectively control the repetition rate of supercontinuum pulses generated within the optical fiber; and illuminating a sample with supercontinuum pulses to excite fluorescence. The supercontinuum pulses can be wavelength filtered such that the fluorescence is excited with wave length filtered supercontinuum pulses.
Abstract translation: 一种在涉及荧光激发的应用中提供超连续光照明的方法，包括在泵浦激光下以泵浦脉冲重复率产生光泵浦脉冲; 利用光学调制器选择性地控制泵浦脉冲发射到包括可变的较低重复频率的光纤的非线性光学元件中，从而选择性地控制在光纤内产生的超连续谱脉冲的重复率; 并用超连续谱脉冲照射样品以激发荧光。 超连续谱脉冲可以被波长滤波，使得荧光被波长过滤的超连续谱脉冲激发。
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公开(公告)号：US09496677B2
公开(公告)日：2016-11-15
申请号：US14894986
申请日：2013-12-27
Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Woo Jin Shin
CPC classification number: H01S3/1302 , H01S3/005 , H01S3/0057 , H01S3/0092 , H01S3/06754 , H01S3/10 , H01S3/10015 , H01S3/2375 , H01S5/0608 , H01S5/0609 , H01S5/40 , H01S5/4012
Abstract: An apparatus for generating burst-mode laser includes: a trigger signal generator for generating a burst trigger signal; a first light source for generating a first optical signal in a form of pulse; a second light source for generating a second optical signal in the form of pulse; an optical switch for selecting between the first optical signal and the second optical signal according to the burst trigger signal to output the selected one; an optical amplifier for amplifying the optical signal output from the optical switch; and a wavelength tuner for tuning a wavelength of the optical signal amplified by the optical amplifier. An oscillation line-width and/or a polarization state of the first optical signal are different from an oscillation line-width and/or a polarization state of the second optical signal.
Abstract translation: 用于产生突发模式激光器的装置包括：用于产生脉冲串触发信号的触发信号发生器; 用于产生脉冲形式的第一光信号的第一光源; 用于产生脉冲形式的第二光信号的第二光源; 光开关，用于根据突发触发信号在第一光信号和第二光信号之间进行选择，以输出所选择的信号; 光放大器，用于放大从光开关输出的光信号; 以及用于调谐由光放大器放大的光信号的波长的波长调谐器。 第一光信号的振荡线宽度和/或偏振状态与第二光信号的振荡线宽度和/或偏振状态不同。
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