公开(公告)号：US20160294145A1

公开(公告)日：2016-10-06

申请号：US14245913

申请日：2014-04-04

申请人： Coherent, Inc.

发明人： Dmitri SIMANOVSKI ,  Norman HODGSON

IPC分类号： H01S3/00 ,  H01S3/23 ,  G02B27/42 ,  H01S3/16 ,  G02B27/10

CPC分类号： H01S3/0057 ,  G01J3/14 ,  G01J3/18 ,  G02B27/1006 ,  G02B27/4244 ,  G02F1/353 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2203/055 ,  G02F2203/255 ,  G02F2203/58 ,  H01S3/005 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/06758 ,  H01S3/1618 ,  H01S3/2308 ,  H01S2301/08

摘要： A source of femtosecond pulses at center wavelengths of about 940 nm and about 1140 nanometers (nm) includes a mode-locked fiber MOPA delivering pulses having a center wavelength of about 1040 nm. The 1040-nanometer pulses are spectrally spread into a continuum spectrum extending in range between about 900 nm and about 1200 nm and having well defined side-lobes around the 940-nm and 1140-wavelengths. Radiation is spatially selected from these side-lobes and delivered as the 940-nm and 1140-nm pulses.

摘要翻译： 在约940nm和约1140纳米（nm）的中心波长处的飞秒脉冲源包括递送具有约1040nm的中心波长的脉冲的锁模光纤MOPA。 1040纳米脉冲光谱扩展到在约900nm和约1200nm之间的范围内延伸的连续谱，并且具有围绕940nm和1140波长的明确限定的旁瓣。 从这些旁瓣空间选择辐射，并以940nm和1140nm脉冲递送辐射。

公开(公告)号：US20200235544A1

公开(公告)日：2020-07-23

申请号：US16741486

申请日：2020-01-13

申请人： Coherent, Inc.

发明人： Norman HODGSON ,  Andrea CAPRARA ,  Kai SCHMIDT

IPC分类号： H01S3/109 ,  H01S3/094 ,  H01S3/16 ,  H01S3/06 ,  H01S3/115 ,  H01S3/08 ,  H01S3/0941 ,  B23K26/0622 ,  B23K26/064 ,  B23K26/354 ,  B23K26/00

摘要： Laser annealing apparatus includes a plurality of frequency-tripled solid-state lasers, each delivering an output beam of radiation at a wavelength between 340 nm and 360 nm. Each output beam has a beam-quality factor (M2) greater of than 50 in one transverse axis and greater than 20 in another transverse axis. The output beams are combined and formed into a line-beam that is projected on a substrate being annealed. Each output beam contributes to the length of the line-beam.

公开(公告)号：US20210057868A1

公开(公告)日：2021-02-25

申请号：US16546178

申请日：2019-08-20

申请人： Coherent, Inc.

发明人： Dmitri SIMANOVSKI ,  Norman HODGSON

IPC分类号： H01S3/091 ,  H01S3/16 ,  H01S3/00 ,  H01S3/067 ,  H01S3/23

摘要： An optical parametric chirped-pulse amplifier includes first and second optical parametric amplifier stages that successively amplify a stretched signal beam. A pulsed laser provides a fundamental beam. The second amplifier stage is pumped by the full power of a second-harmonic beam that is generated from the fundamental beam. A residual fundamental beam is used to generate another second-harmonic beam that pumps the first amplifier stage.

公开(公告)号：US20160334570A1

公开(公告)日：2016-11-17

申请号：US15098103

申请日：2016-04-13

申请人： Coherent, Inc.

发明人： Michael HERTWIG ,  Norman HODGSON ,  Dmitri SIMANOVSKI

IPC分类号： G02B6/024 ,  G02B6/27 ,  G02B6/02

CPC分类号： G02B6/02304 ,  A61B2018/2227 ,  G02B6/024 ,  G02B6/2706 ,  G02B6/2766

摘要： Plane-polarized laser-radiation from a laser-source is converted to circularly polarized radiation by a quarter-wave plate. The circularly polarized radiation is input into a hollow-core fiber for transport to a point of use. The transported radiation is converted back to plane-polarized radiation by another quarter-wave plate between the fiber and the point of use.

摘要翻译： 来自激光源的平面偏振激光辐射被四分之一波片转换成圆偏振的辐射。 将圆偏振辐射输入到中空纤维中以便运输到使用点。 传输的辐射在光纤和使用点之间被另一个四分之一波片转换回平面偏振辐射。

公开(公告)号：US20160087390A1

公开(公告)日：2016-03-24

申请号：US14958599

申请日：2015-12-03

申请人： Coherent, Inc.

发明人： Norman HODGSON ,  Dmitri SIMANOVSKI ,  Andrei STARODOUMOV

IPC分类号： H01S3/00 ,  H01S3/067 ,  G02B17/00 ,  G02B5/10 ,  G02F1/35 ,  G02B17/02

CPC分类号： H01S3/0092 ,  G02B5/10 ,  G02B17/004 ,  G02B17/023 ,  G02F1/35 ,  G02F1/3511 ,  G02F2001/3528 ,  G02F2001/3542 ,  H01S3/0057 ,  H01S3/0078 ,  H01S3/067 ,  H01S2301/08

摘要： A mode-locked fiber MOPA delivers pulses of laser-radiation. A super-continuum generator including a bulk spectral-broadening element and a negative group-delay dispersion (NGDD) device is arranged to receive a pulse from the MOPA and cause the pulse to make a predetermined number of sequential interactions with the broadening element and the NGDD device. After making the predetermined interactions, the pulse is delivered from the super-continuum generator with a very broad spectral-bandwidth and a very short duration.

公开(公告)号：US20190067897A1

公开(公告)日：2019-02-28

申请号：US15692653

申请日：2017-08-31

申请人： Coherent, Inc.

发明人： Andrei STARODOUMOV ,  Norman HODGSON

IPC分类号： H01S3/23 ,  H01S3/06 ,  H01S3/16 ,  H01S3/067

CPC分类号： H01S3/2325 ,  H01S3/0057 ,  H01S3/0606 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/10023 ,  H01S3/1618 ,  H01S3/164 ,  H01S3/1641 ,  H01S3/1643 ,  H01S3/1668 ,  H01S3/167 ,  H01S3/2333 ,  H01S3/2341 ,  H01S3/235

摘要： Laser-apparatus includes a fiber-MOPA arranged to deliver amplified seed optical pulses having a wavelength of about 1043 nanometers to a multi-pass ytterbium-doped yttrium aluminum garnet solid-state optical amplifier for further amplification.

公开(公告)号：US20150131143A1

公开(公告)日：2015-05-14

申请号：US14080366

申请日：2013-11-14

申请人： COHERENT, INC.

发明人： Norman HODGSON ,  Dmitri SIMANOVSKI ,  Andrei STARODOUMOV

IPC分类号： H01S3/00 ,  G02F1/35

CPC分类号： H01S3/0092 ,  G02B5/10 ,  G02B17/004 ,  G02B17/023 ,  G02F1/35 ,  G02F1/3511 ,  G02F2001/3528 ,  G02F2001/3542 ,  H01S3/0057 ,  H01S3/0078 ,  H01S3/067 ,  H01S2301/08

摘要： A mode-locked fiber MOPA delivers pulses of laser-radiation. A super-continuum generator including a bulk spectral-broadening element and a negative group-delay dispersion (NGDD) device is arranged to receive a pulse from the MOPA and cause the pulse to make a predetermined number of sequential interactions with the broadening element and the NGDD device. After making the predetermined interactions, the pulse is delivered from the super-continuum generator with a very broad spectral-bandwidth and a very short duration.

摘要翻译： 锁模光纤MOPA提供激光辐射脉冲。 包括体谱扩展元件和负组延迟色散（NGDD）器件的超连续发生器布置成从MOPA接收脉冲，并使脉冲与扩展元件进行预定数量的顺序相互作用，并且 NGDD设备。 在进行预定的相互作用之后，脉冲从超连续发生器以非常宽的频谱带宽和非常短的持续时间传送。

公开(公告)号：US20150036706A1

公开(公告)日：2015-02-05

申请号：US14516446

申请日：2014-10-16

申请人： Coherent, Inc.

发明人： Norman HODGSON ,  Michael HERTWIG ,  H. Yang PANG

IPC分类号： H01S3/04 ,  H01S3/16 ,  H01S3/11

CPC分类号： H01S3/04 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0621 ,  H01S3/0623 ,  H01S3/0816 ,  H01S3/094038 ,  H01S3/094076 ,  H01S3/094084 ,  H01S3/11 ,  H01S3/16 ,  H01S3/1625 ,  H01S3/1636 ,  H01S3/235

摘要： A laser includes a Ti:sapphire gain-medium in the form of a thin-disk. The thin-disk gain-medium is optically pumped by pump-radiation pulses having a wavelength in the green region of the electromagnetic spectrum. The pump-radiation pulses have a duration less than twice the excited-state lifetime of the gain-medium.

摘要翻译： 激光器包括薄的形式的Ti：蓝宝石增益介质。 薄磁盘增益介质通过在电磁频谱的绿色区域中具有波长的泵浦辐射脉冲进行光泵浦。 泵浦辐射脉冲具有小于增益介质的激发态寿命的两倍的持续时间。

公开(公告)号：US20140211301A1

公开(公告)日：2014-07-31

申请号：US13753738

申请日：2013-01-30

申请人： COHERENT, INC.

发明人： Andrei STARODOUMOV ,  Norman HODGSON

IPC分类号： H01S3/16

CPC分类号： H01S3/16 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0625 ,  H01S3/06758 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/1618 ,  H01S3/1643 ,  H01S3/2316 ,  H01S3/2333 ,  H01S5/4031

摘要： An optical amplifier for use as a final amplification stage for a fiber-MOPA has a gain-element including a thin wafer or chip of ytterbium-doped YAG. An elongated gain-region is formed in gain-element by multiple incidences of radiation from a diode-laser bar.

摘要翻译： 用作光纤MOPA的最终放大级的光放大器具有包括掺镱YAG的薄晶片或芯片的增益元件。 通过来自二极管 - 激光条的多次辐射，在增益元件中形成细长的增益区域。