-
1.发明申请公开(公告)号：US20190163032A1
公开(公告)日：2019-05-30
申请号：US14590752
申请日：2015-01-06
CPC分类号： G02F1/37 , G02F1/353 , G02F2001/354 , H01S3/0092 , H01S3/06745 , H01S3/06758 , H01S3/10015 , H01S3/1003 , H01S3/10061 , H01S3/1301 , H01S3/1618 , H01S2301/02 , H01S2301/03
摘要： A single-mode (SM) Green fiber laser is configured to operate in a Green spectral range in a continuous-wave (CW) or quasi-continuous-wave (QCW) mode. The Green laser is configured with a pump source, outputting narrow-linewidth pump light at a fundamental wavelength in one (1) micrometer spectral range, and a single-pass second harmonic generator (SHG), such as a nonlinear LBO crystal, frequency doubling the pump light to output Green light at a signal wavelength. The pump light source is configured to have a MOPFA configuration with a SM seed which emits the SM pump light with a linewidth narrower than 0.2 nm, and at least one ytterbium (“Yb”) fiber amplifier receiving and amplifying the SM pump light at the fundamental wavelength while maintaining the linewidth narrower than 0.2 nm. The SM Green fiber laser operates with a wall plug efficiency between 15% and 30% in a 510-540 nm signal wavelength range and a power range between about 50 W and kW-levels.
-
公开(公告)号：US20180233878A1
公开(公告)日：2018-08-16
申请号：US15511826
申请日：2015-09-16
IPC分类号： H01S3/23 , H01S3/00 , G02F1/355 , G03B21/20 , H01S3/067 , H01S3/094 , H01S3/16 , G02B27/48 , H01S3/30 , G02F1/37
CPC分类号： H01S3/2391 , G02B27/48 , G02F1/3532 , G02F1/3551 , G02F1/37 , G03B21/2033 , H01S3/0092 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/08045 , H01S3/094046 , H01S3/1608 , H01S3/1618 , H01S3/2308 , H01S3/302 , H04N9/3161 , H04N9/3164 , H04N13/334 , H04N13/363
摘要： An RGB light source for a luminaire projector system includes Red, Green and Blue lasers each outputting a randomly polarized (RP) single mode (SM) light with at least a 4 nm spectral linewidth. The Green laser has a MOPFA-structured pump which outputs a pulsed pump beam at a fundamental wavelength in a 1 μm wavelength range and further includes a SHG. The SHG includes an LBO nonlinear crystal receiving the pulsed pump beam and outputting a train of pulses of BB Green light. The Red laser is configured with a QCW fiber laser pump and a frequency converter with an LBO nonlinear crystal outputting a train of pulses of red light in a 6xx nm wavelength range.
-
公开(公告)号：US20160282553A1
公开(公告)日：2016-09-29
申请号：US15165297
申请日：2016-05-26
发明人： Valentin GAPONTSEV , Igor SAMARTSEV
CPC分类号： G02B6/02314 , C03B37/01214 , C03B37/028 , G02B6/02009 , G02B6/02333 , G02B6/02338 , G02B6/024 , G02B6/032 , G02B6/06 , H01S3/06716 , H01S3/06729 , H01S3/094019 , H01S3/1603
摘要： An optical fiber includes a monolithic elongated mosaic core having a longitudinal axis and configured with a silica-based medium with a uniform refractive index, and a plurality of coaxial elongated individual elements which do not waveguide light at a given wavelength and are received in the silica-glass medium. The refractive indices of the medium and individual anti- waveguiding elements together determine a cumulative effective refractive index of the mosaic core. The optical fiber further includes at least one cladding surrounding the mosaic core and provided with a cladding refractive index which is lower than the index of the mosaic core, so that the mosaic core waveguides the light at the given wavelength.
摘要翻译： 光纤包括具有纵轴并且具有均匀折射率的基于二氧化硅的介质的单片细长镶嵌芯，以及多个不具有给定波长的波导光并被接收在二氧化硅中的同轴细长单独元件 玻璃介质。 介质和各个抗波导元件的折射率一起确定镶嵌芯的累积有效折射率。 光纤还包括围绕马赛克芯并且具有低于马赛克芯的折射率的包层折射率的至少一个包层，使得马赛克芯以给定波长波导光。
-
公开(公告)号：US20220149579A1
公开(公告)日：2022-05-12
申请号：US17427135
申请日：2020-01-31
发明人： Alex YUSIM , Igor SAMARTSEV , Manuel J. LEONARDO , Vadim SMIRNOV , Pankaj KADWANI , Alexey AVDOKHIN , Andreas VAUPEL
摘要： A laser system and method. In one example, the laser system includes an optical pulse stretcher configured to stretch pulse durations of an input train of input pulses to produce a train of stretched laser pulses, a pulse replicator module configured to increase a pulse repetition rate of the train of stretched laser pulses to produce a modified pulse train of laser light, a fiber power amplifier configured to amplify the modified pulse train to produce amplified laser pulses, and a pulse compressor that temporally compresses the amplified laser pulses to produce amplified and compressed laser pulses. The system may further include a nonlinear frequency conversion stage comprising at least one nonlinear crystal.
-
5.发明申请PROCESS AND SYSTEM FOR UNIFORMLY CRYSTALLIZING AMORPHOUS SILICON SUBSTRATE BY FIBER LASER 审中-公开通过光纤激光器使非晶硅基板均匀结晶的工艺和系统公开(公告)号：US20160013057A1
公开(公告)日：2016-01-14
申请号：US14790170
申请日：2015-07-02
发明人： Alexey AVDOKHIN , Yuri EROKHIN , Manuel LEONARDO , Alexander LIMANOV , Igor SAMARTSEV , Michael von Dadelszen
IPC分类号： H01L21/02 , H01L21/67 , H01L29/04 , H01S3/11 , H01S3/0941 , H01S3/094 , H01S3/16 , H01L29/16 , H01S3/067
CPC分类号： H01L21/02686 , H01L21/02532 , H01S3/06745 , H01S3/06754 , H01S3/094003 , H01S3/1618
摘要： The inventive system for crystallizing an amorphous silicon (a-Si) film is configured with a quasi-continuous wave fiber laser source operative to emit a film irradiating pulsed beam. The fiber laser source is operative to emit a plurality of non-repetitive pulses incident on the a-Si. In particular, the fiber laser is operative to emit multiple discrete packets of film irradiating light at a burst repetition rate (BRR), and a plurality of pulses within each packet emitted at a pulse repetition rate (PRR) which is higher than the BRR. The pulse energy, pulse duration of each pulse and the PRR are controlled so that each packet has a desired packet temporal power profile (W/cm2) and packet energy sufficient to provide transformation of a-Si to polysilicon (p-Si) at each location of the film which is exposed to at least one packets.
摘要翻译： 本发明的用于结晶非晶硅（a-Si）膜的系统由准连续波长的光纤激光源构成，该激光源可操作地发射照射脉冲光束的膜。 光纤激光源可操作地发射入射到a-Si上的多个非重复脉冲。 特别地，光纤激光器以突发重复率（BRR）发射多个离散的薄膜照射光束的分组，并且以比BRR高的脉冲重复率（PRR）发射每个分组内的多个脉冲。 控制脉冲能量，每个脉冲的脉冲持续时间和PRR，使得每个分组具有期望的分组时间功率分布（W / cm 2）和分组能量，其足以在每个分组处提供a-Si到多晶硅（p-Si）的转变 暴露于至少一个数据包的电影的位置。
-
公开(公告)号：US20210159662A1
公开(公告)日：2021-05-27
申请号：US16613463
申请日：2018-05-14
摘要： A Raman fiber laser source is configured with a feeding fiber delivering MM pump radiation to an inner cladding of double-clad MM Raman fiber laser. The MM pump beam radiation has a sufficient power to produce Raman scattering in the MM Raman fiber converting the pump radiation to a MM signal radiation at a Raman-shifted wavelength λram which is longer than a wavelength λpump of the pump radiation. The Raman laser source further has a pair of spaced reflectors defining therebetween a resonator for the signal radiation at a 1st Stokes wavelength and flanking at least part of the MM core of the Raman fiber which is provided with a central core region which is doped with impurities for enhancing Raman process. The reflectors and central core region are dimensioned to correspond to the fundamental mode of the MM signal radiation which is output from the Raman fiber with an M2 factor ≤1.1 and in a power range between a few kW and tens of kW.
-
公开(公告)号：US20170365972A1
公开(公告)日：2017-12-21
申请号：US15536170
申请日：2015-12-15
发明人： Igor SAMARTSEV , Andrey BORDENYUK
CPC分类号： H01S3/06791 , H01S3/06725 , H01S3/06754 , H01S3/08013 , H01S3/08027 , H01S3/094003 , H01S3/0941 , H01S3/10023 , H01S3/1112 , H01S3/131 , H01S3/136
摘要： A pulsed fiber generator is configured with a unidirectional ring waveguide configured to emit a train of pulses. The ring waveguide includes multiple fiber amplifiers, chirping fiber components coupled to respective outputs of first and second fiber amplifiers, and multiple spectral filters coupled to respective outputs of the chirping components. The filters have respective spectral band passes centered around different central wavelengths so as to provide leakage of light along the ring cavity in response to nonlinear processes induced in the ring cavity. The pulse generator operates at a preliminary stage during which it is configured to develop a pitch to a signal, and at a steady stage during which it is configured to output a train of pulses through an output coupler at most once per a single round trip of the signal.
-
公开(公告)号：US20170294754A1
公开(公告)日：2017-10-12
申请号：US15511798
申请日：2015-09-16
CPC分类号： H01S3/0092 , G02B27/48 , G02F1/3532 , G02F1/3551 , G02F1/37 , H01S3/0675 , H01S3/06758 , H01S3/08045 , H01S3/094046 , H01S3/1618 , H01S3/2391 , H01S3/302
摘要： A broad line red light generator is configured with a single mode (SM) pulsed ytterbium (“Yb”) fiber laser pump source outputting pump light in a fundamental mode (“FM”) at a pump wavelength which is selected from a 1030-1120 nm wavelength range. The disclosed generator further includes a SM fiber Raman converter spliced to an output of the Yb fiber laser pump source. The Raman converter induces an “n” order frequency Stokes shift of the pump light to output the pump light at a Raman-shifted wavelength within 1220 and 1300 nm wavelength range with a broad spectral line of at least 10 nm. The disclosed light generator further has a single pass second harmonic generator (“SHG”) with a lithium triborate (“LBO”) nonlinear optical crystal having a spectral acceptance linewidth which is sufficient to cover the broad spectral line of the pump light. The SHG generates a SM pulsed broad-line red light with a broad spectral line of at least 4 nm.
-
公开(公告)号：US20220294177A1
公开(公告)日：2022-09-15
申请号：US17624960
申请日：2020-07-09
发明人： Alex YUSIM , David CLARK , Igor SAMARTSEV , Joe ANTAS , Justin BARSALOU
摘要： A CPA ultrashort pulse laser system is configured with a beam splitter dividing each ultrashort pulse from a seed laser into at least two replicas which propagate along respective replica paths. Each replica path includes an upstream dispersive element stretching respective replicas to different pulse durations. The optical switches are located in respective replica paths upstream or downstream from upstream dispersive elements. Each optical switch is individually controllable to operate at a high switching speed between “on” and “off” positions so as to selectively block one of the replicas or temporally separate the replicas at the output of the switching assembly. The replicas are so stretched that a train of high peak power ultrashort pulses each are output with a pulse duration selected from a fs ns range and peak power of up to a MW level.
-
公开(公告)号：US20190326723A1
公开(公告)日：2019-10-24
申请号：US16465021
申请日：2017-12-01
摘要： A high average and peak power single transverse mode laser system is operative to output ultrashort single mode (SM) pulses in femtosecond-, picosecond- or nanosecond-pulse duration range at a kW to MW peak power level. The disclosed system deploys master oscillator power amplifier configuration (MOPA) including a SM fiber seed, outputting a pulsed signal beam at or near 1030 nm wavelength, and a Yb crystal booster. The booster is end-pumped by a pump beam output from a SM or low-mode CW fiber laser at a pump wavelength in a 1000-1020 nm wavelength range so that the signal and pump wavelengths are selected to have an ultra-low-quantum defect of less than 3%.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.014 秒)
