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1. 发明申请

WO2018071712A1 TANDEM PUMPED FIBER AMPLIFIER 审中-公开
标题翻译：随机抽取式光纤放大器
公开(公告)号：WO2018071712A1
公开(公告)日：2018-04-19
申请号：PCT/US2017/056402
申请日：2017-10-12
申请人： NLIGHT, INC.
发明人： KANSKAR, Manoj
IPC分类号： H01S3/067 , G02B6/02 , H01S3/094 , H01S3/0941 , H01S3/16 , H01S3/00
CPC分类号： H01S3/06758 , G02B6/02042 , G02B6/24 , H01S3/0064 , H01S3/0085 , H01S3/0672 , H01S3/06729 , H01S3/06733 , H01S3/0675 , H01S3/06754 , H01S3/094007 , H01S3/094015 , H01S3/094042 , H01S3/09408 , H01S3/0941 , H01S3/09415 , H01S3/1618 , H01S3/2308 , H01S2301/03
摘要： In an example, a tandem pumped fiber amplifier may include a seed laser, one or more diode pumps, and a plural core fiber including a first core and a second core, the second core surrounding the first core. The plural core fiber may include a first section to operate as an oscillator and a second different section to operate as a power amplifier. The one or more diode pumps may be optically coupled to the first section of the plural core fiber, and the seed laser may be optically coupled to the first core.
摘要翻译：在一个示例中，串联泵浦光纤放大器可以包括种子激光器，一个或多个二极管泵以及包括第一芯和第二芯的多芯光纤，第二芯包围第一芯。多芯光纤可以包括用作振荡器的第一部分和用作功率放大器的第二不同部分。一个或多个二极管泵可以光耦合到多芯光纤的第一部分，并且种子激光器可以光耦合到第一芯。

2. 发明申请

WO2017039980A1 FIBER-LASER PUMPED CRYSTAL-LASER 审中-公开
标题翻译：光纤激光水晶激光器
公开(公告)号：WO2017039980A1
公开(公告)日：2017-03-09
申请号：PCT/US2016/046188
申请日：2016-08-09
申请人： COHERENT, INC.
发明人： STARODOUMOV, Andrei , SIMANOVSKI, Dmitri
IPC分类号： H01S3/094 , H01S3/16 , H01S3/23 , H01S3/06 , H01S3/08 , H01S3/081
CPC分类号： H01S3/06716 , H01S3/0604 , H01S3/0621 , H01S3/08095 , H01S3/0817 , H01S3/094038 , H01S3/094042 , H01S3/094084 , H01S3/10061 , H01S3/1106 , H01S3/1618 , H01S3/1631 , H01S3/1643 , H01S3/165 , H01S3/1675 , H01S3/23 , H01S3/2325
摘要： An apparatus for generating and amplifying laser beams at approximately 1 micrometer wavelength is disclosed. The apparatus includes an ytterbium-doped gain-crystal pumped by an ytterbium fiber-laser. The fiber-laser enables a pump wavelength to be selected that minimizes heating of the gain-crystal. The apparatus can be configured for generating and amplifying ultra- fast pulses, utilizing the gain-bandwidth of ytterbium-doped gain-crystals.
摘要翻译：公开了一种用于产生和放大约1微米波长的激光束的装置。该装置包括由镱光纤激光器泵浦的镱掺杂增益晶体。光纤激光器能够选择最小化增益晶体的加热的泵浦波长。该装置可以被配置用于利用镱掺杂增益晶体的增益带宽来产生和放大超快脉冲。

3. 发明申请

WO2013109902A1 HIGH POWER SINGLE MODE YTTERBIUM FIBER LASER SYSTEM WITH SINGLE MODE NEODYMIUM FIBER SOURCE 审中-公开
标题翻译：单模光纤光源的高功率单模YTTERBIUM光纤激光系统
公开(公告)号：WO2013109902A1
公开(公告)日：2013-07-25
申请号：PCT/US2013/022161
申请日：2013-01-18
申请人： IPG PHOTONICS CORPORATION , GAPONTSEV, Valentin , SAMARTSEV, Igor
发明人： GAPONTSEV, Valentin , SAMARTSEV, Igor
IPC分类号： H01S3/067
CPC分类号： H01S3/06708 , G02B6/14 , H01S3/06729 , H01S3/06745 , H01S3/06754 , H01S3/08045 , H01S3/094042 , H01S3/1611 , H01S3/1618 , H01S2301/03
摘要： A high power fiber laser system emitting a substantially diffraction limited beam with a Gaussian intensity profile includes a single mode ("SM") neodymium fiber pump source outputting a SM pump light; a seed laser operative to emit a SM signal light at a wavelength greater than that of the pump light; a SM DWM receiving and multiplexing the SM pump and signal lights. The disclosed system further includes a booster fiber amplifier which is confiugred with a frustoconically-shaped ytterbium ("Yb") doped core receiving the pump and signal lights and configured with a small diameter input end which supports only a SM and a large diameter output end which is capable of supporting the SM and high order modes (:HOM"). The booster further has a cladding surrounding and coextending with the core, the core being configured for having intensity profiles of respective SMs of pump and signal lights overlap one another so that an overlap integral substantially equals to one (1) along an entire length of the core. The SM of the light signal extracts substantially the entire energy from the pump mode leaving the HOMs without amplification necessary to affect a quality of the diffraction limited beam of the system in a MW peak power range and hundreds of watt average power range.
摘要翻译：发射具有高斯强度分布的基本衍射受限束的高功率光纤激光器系统包括输出SM泵浦光的单模（“SM”）钕光纤泵浦源; 种子激光器，其以大于泵浦光的波长发射SM信号光; SM DWM接收和复用SM泵和信号灯。所公开的系统还包括一个增强光纤放大器，其与接收泵和信号灯的截头圆锥形镱（“Yb”）掺杂的核心配合，并配置有仅支持SM和大直径输出端的小直径输入端其能够支持SM和高阶模式（：HOM“），该升压器还具有包围并与芯共同延伸的包层，所述芯被配置为具有泵和信号灯的各个SM的强度分布彼此重叠，因此重叠积分基本上等于沿着芯的整个长度的一（1），光信号的SM从泵模式中提取基本上整个能量，留下HOM，而不需要影响衍射受限束质量的放大该系统在MW峰值功率范围和数百瓦的平均功率范围内。

4. 发明申请

WO2012047218A1 HIGH POWER NEODYMIUM FIBER LASERS AND AMPLIFIERS 审中-公开
标题翻译：高功率光纤激光器和放大器
公开(公告)号：WO2012047218A1
公开(公告)日：2012-04-12
申请号：PCT/US2010/051743
申请日：2010-10-07
申请人： IPG PHOTONICS CORPORATION , GASPONTSEV, Valentin , ZAYTSEV, Illia , VYATKIN, Mikhail
发明人： GASPONTSEV, Valentin , ZAYTSEV, Illia , VYATKIN, Mikhail
IPC分类号： H01S3/067 , H01S3/05
CPC分类号： H01S3/1611 , H01S3/0092 , H01S3/06745 , H01S3/06758 , H01S3/094007 , H01S3/094011 , H01S3/094019 , H01S3/094042 , H01S3/094061 , H01S3/09408 , H01S3/10023 , H01S3/1618
摘要： A fiber block is configured with a fiber block including a Nd-doped active fiber and a pump-light delivery fiber which has a stretch extending along the active fiber in a side-to-side configuration so as to lunch pump light into the Nd-doped core of the active fiber. The core of the active fiber is surrounded by at least one or more claddings which, like the core, have a double bottleneck cross-section with a relatively large-area central region and relatively small input and output regions. The pump light delivery fiber is structured to have a substantially dumbbell cross-section with a relatively small-area central region coextending with the central region of the active fibers. The active fiber is dimensioned so that the overall length of the active fiber is configured to provide for the maximal amplification of the laser signal in a 900 nm range while limiting amplification in the 1060 nm range to the preset threshold. The fiber block is further configured so as to have the major fraction of the unabsorbed light, supported in the relatively large-area output end region of the passive fiber, be further used for pumping a neighboring fiber block.
摘要翻译：纤维块由具有Nd掺杂有源纤维和泵浦光输送纤维的纤维块构成，所述纤维块具有沿着有源纤维沿着侧面配置延伸的拉伸，以便将泵浦光中的Nd- 有源光纤的掺杂核心。有源光纤的核心被至少一个或多个包层围绕，像芯一样，具有相对较大面积的中心区域和相对小的输入和输出区域的双瓶颈截面。泵浦光输送纤维被构造成具有基本上哑铃的横截面，其具有与活性纤维的中心区域共同延伸的相对小的区域中心区域。有源光纤的尺寸设计使得有源光纤的总长度被配置为提供在900nm范围内的激光信号的最大放大率，同时将1060nm范围内的放大限制到预设阈值。纤维块被进一步配置成具有支撑在无源光纤的相对大面积的输出端区域中的未被吸收的光的主要部分，进一步用于泵送相邻的光纤块。

5. 发明申请

WO2012030892A2 HIGH POWER FIBER LASER SYSTEM 审中-公开
标题翻译：高功率纤维激光系统
公开(公告)号：WO2012030892A2
公开(公告)日：2012-03-08
申请号：PCT/US2011049857
申请日：2011-08-31
申请人： TEXTRON SYSTEMS CORP , LANGSETH JASON EDWARD
发明人： LANGSETH JASON EDWARD
IPC分类号： H01S3/067 , H01S3/09
CPC分类号： H01S3/094053 , H01S3/06733 , H01S3/0675 , H01S3/06754 , H01S3/094003 , H01S3/094042 , H01S3/094092 , H01S3/09415 , H01S3/1608 , H01S3/1618 , H01S3/2308 , H01S3/2383 , H01S5/4012 , H01S5/4025
摘要： A tapered fiber bundle device couples optical power from an optical power source into an output fiber. The tapered fiber bundle device includes a tapered fiber bundle including a set of bundled fibers having a near end and a distal end. The near end of the tapered fiber bundle is configured to collect the optical power from the optical power source. Each fiber k in the set of bundled fibers has a first cross-sectional area A k (1) at the near end and a second cross-sectional area A k (2) at the distal end such that A k (2) is substantially smaller than A k (1). Each fiber also has a substantially uniform core and a substantially uniform numerical aperture value NA in. A cross-sectional area of the set of bundled fibers at the distal end has a cross-sectional area value A dist substantially equal to A out.
摘要翻译：锥形光纤束装置将来自光功率源的光功率耦合到输出光纤中。锥形纤维束装置包括锥形纤维束，锥形纤维束包括具有近端和远端的一组束纤维。锥形光纤束的近端配置为收集来自光源的光功率。该组束纤维中的每根纤维k在近端处具有第一横截面积A k（1）并且在远端处具有第二横截面积A k（2），使得A k（2）基本上小于A k（1）。每根纤维还具有基本均匀的芯部和基本上均匀的数值孔径值NA in。远端处的该组成束纤维的横截面积具有基本上等于A out的横截面积值A dist。

6. 发明申请

WO2011084863A2 FIBER LASERS AND MID-INFRARED LIGHT SOURCES IN METHODS AND SYSTEMS FOR SELECTIVE BIOLOGICAL TISSUE PROCESSING AND SPECTROSCOPY 审中-公开
标题翻译：用于选择性生物组织加工和光谱的方法和系统中的光纤激光器和中红外光源
公开(公告)号：WO2011084863A2
公开(公告)日：2011-07-14
申请号：PCT/US2010062467
申请日：2010-12-30
申请人： CHEETAH OMNI LLC , ISLAM MOHAMMED N
发明人： ISLAM MOHAMMED N
IPC分类号： A61B18/20 , A61B18/22 , A61F9/008
CPC分类号： A61B18/20 , A61B2018/00464 , A61B2018/2065 , A61B2018/2244 , A61F9/008 , A61F9/00804 , A61F9/00814 , H01S3/0064 , H01S3/0078 , H01S3/0675 , H01S3/06758 , H01S3/094042 , H01S3/1616 , H01S3/1618 , H01S3/302
摘要： Laser-based methods and systems for selectively processing or damaging biological target material characterized by an absorptive coefficient in a therapeutic procedure are provided. The lasers typically are fiber lasers. Also, methods and systems which use spectroscopy are provided to selectively diagnose the presence of certain tissue types. One of the methods includes generating an output laser beam along a propagation path. The beam has optical and temporal properties and a predetermined wavelength based on the absorptive coefficient of the target material. The path extends through an opening in a body and into an interior body cavity. The method further includes delivering and focusing the output laser beam into a plurality of spots on the target material for a duration sufficient to allow laser energy to be absorbed by the target material and converted to heat to produce a desired physical change in the target material without causing undesirable changes to adjacent non-target material having an absorptive coefficient different than the target material at the predetermined wavelength.
摘要翻译：提供了基于激光的方法和系统，用于选择性处理或损害以治疗过程为特征的吸收系数的生物靶材。激光器通常是光纤激光器。此外，提供使用光谱学的方法和系统来选择性地诊断某些组织类型的存在。其中一种方法包括沿着传播路径产生输出激光束。光束具有基于目标材料的吸收系数的光学和时间特性以及预定波长。路径延伸穿过体内的开口并进入内部体腔。该方法还包括将输出激光束输送并聚焦到目标材料上的多个点上足够长的时间，以允许激光能量被目标材料吸收并转换成热以在目标材料中产生期望的物理变化而没有对于具有与预定波长的目标材料不同的吸收系数的相邻非目标材料造成不希望的变化。

7. 发明申请

WO2009007721A2 APPARATUS AND METHOD FOR LASER PROCESSING A MATERIAL 审中-公开
标题翻译：用于激光加工材料的装置和方法
公开(公告)号：WO2009007721A2
公开(公告)日：2009-01-15
申请号：PCT/GB2008002357
申请日：2008-07-09
申请人： SPI LASERS UK LTD , APPLEYARD ANDREW PAUL , WALKER DUNCAN JOHN WILLIAM , NEAL ROLAND
发明人： APPLEYARD ANDREW PAUL , WALKER DUNCAN JOHN WILLIAM , NEAL ROLAND
CPC分类号： H01S3/094003 , B23K26/0622 , B23K26/082 , H01S3/094007 , H01S3/094042 , H01S3/10007 , H01S3/1024 , H01S3/1618 , H01S3/2308
摘要： Apparatus for laser processing a material (8) with optical radiation (T), which apparatus comprises a seed laser (1) pumped by a seed pump (2), an amplifier (3) pumped by an amplifier pump (4), a controller (5), and a scanner (6), wherein the controller (5) controls the seed pump (2), the amplifier pump (4) and the scanner (6) in synchronism such that optical pulses (10) emitted by the seed laser (1) are propagated through the amplifier (3) and directed to the material (8) by the scanner (6), the apparatus being characterized in that controller (5) controls the amplifier pump (4) to cause the amplifier (3) to act as an optical attenuator when the optical radiation (7) is in a first power range, and as an optical amplifier when the output power is in a second power range.
摘要翻译：用光辐射（T）激光加工材料（8）的设备，该设备包括由种子泵（2）泵浦的种子激光器（1），由放大器泵（4）泵浦的放大器（3），控制器（5）和扫描器（6），其中控制器（5）同步地控制种子泵（2），放大器泵（4）和扫描器（6），使得种子发射的光脉冲激光器（1）通过放大器（3）传播并通过扫描器（6）导向材料（8），该设备的特征在于控制器（5）控制放大器泵（4）以使放大器）在光辐射（7）处于第一功率范围时用作光学衰减器，并且当输出功率处于第二功率范围时用作光学放大器。

8. 发明申请

WO2006042312A3 UTILIZATION OF YB: AND ND: MODE-LOCKED OSCILLATORS IN SOLID-STATE SHORT PULSE LASER SYSTEMS 审中-公开
标题翻译： YB：和ND的使用：固态短脉冲激光系统中的模式锁定振荡器
公开(公告)号：WO2006042312A3
公开(公告)日：2008-11-27
申请号：PCT/US2005036879
申请日：2005-10-12
申请人： IMRA AMERICA INC , HARTER DONALD J , CHO GYU C , FERMANN MARTIN E , HARTL INGMAR
发明人： HARTER DONALD J , CHO GYU C , FERMANN MARTIN E , HARTL INGMAR
IPC分类号： G02B6/02 , H04B10/17 , G02F1/35 , G02F1/37 , H01S3/00 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/109 , H01S3/16 , H01S3/23 , H01S3/30 , H04B10/12
CPC分类号： H01S5/5045 , H01S3/005 , H01S3/0057 , H01S3/0078 , H01S3/0085 , H01S3/067 , H01S3/0675 , H01S3/06754 , H01S3/094042 , H01S3/10023 , H01S3/109 , H01S3/1616 , H01S3/1618 , H01S3/1643 , H01S3/235
摘要： An optimized Yb: doped fiber mode-locked oscillator and fiber amplifier system for seeding Nd: or Yb: doped regenerative amplifiers. The pulses are generated in the Yb: or Nd: doped fiber mode-locked oscillator, and may undergo spectral narrowing or broadening, wavelength converting, temporal pulse compression or stretching, pulse attenuation and/or lowering the repetition rate of the pulse train. The conditioned pulses are subsequently coupled into an Yb: or Nd: fiber amplifier. The amplified pulses are stretched before amplification in the regenerative amplifier that is based on an Nd: or Yb: doped solid-state laser material, and then recompressed for output.
摘要翻译：一种优化的Yb：掺杂光纤锁模振荡器和光纤放大器系统，用于种子Nd：或Yb：掺杂再生放大器。脉冲在Yb或Nd：掺杂光纤锁模振荡器中产生，并可能经历频谱变窄或变宽，波长转换，时间脉冲压缩或拉伸，脉冲衰减和/或降低脉冲序列的重复率。调节脉冲随后耦合到Yb或Nd：光纤放大器中。在基于Nd：或Yb：掺杂的固态激光材料的再生放大器中，放大后的放大脉冲被拉伸，然后再压缩输出。

9. 发明申请

WO2006042312A2 UTILIZATION OF YB: AND ND: MODE-LOCKED OSCILLATORS IN SOLID-STATE SHORT PULSE LASER SYSTEMS 审中-公开
标题翻译： YB：和ND的使用：固态短脉冲激光系统中的模式锁定振荡器
公开(公告)号：WO2006042312A2
公开(公告)日：2006-04-20
申请号：PCT/US2005/036879
申请日：2005-10-12
申请人： IMRA AMERICA, INC. , HARTER, Donald, J. , CHO, Gyu, C. , FERMANN, Martin, E. , HARTL, Ingmar
发明人： HARTER, Donald, J. , CHO, Gyu, C. , FERMANN, Martin, E. , HARTL, Ingmar
IPC分类号： H01S3/10 , H01S3/30
CPC分类号： H01S5/5045 , H01S3/005 , H01S3/0057 , H01S3/0078 , H01S3/0085 , H01S3/067 , H01S3/0675 , H01S3/06754 , H01S3/094042 , H01S3/10023 , H01S3/109 , H01S3/1616 , H01S3/1618 , H01S3/1643 , H01S3/235
摘要： An optimized Yb: doped fiber mode-locked oscillator and fiber amplifier system for seeding Nd: or Yb: doped regenerative amplifiers. The pulses are generated in the Yb: or Nd: doped fiber mode-locked oscillator, and may undergo spectral narrowing or broadening, wavelength converting, temporal pulse compression or stretching, pulse attenuation and/or lowering the repetition rate of the pulse train. The conditioned pulses are subsequently coupled into an Yb: or Nd: fiber amplifier. The amplified pulses are stretched before amplification in the regenerative amplifier that is based on an Nd: or Yb: doped solid-state laser material, and then recompressed for output.
摘要翻译：一种优化的Yb：掺杂光纤锁模振荡器和光纤放大器系统，用于种子Nd：或Yb：掺杂再生放大器。脉冲在Yb或Nd：掺杂光纤锁模振荡器中产生，并可能经历频谱变窄或变宽，波长转换，时间脉冲压缩或拉伸，脉冲衰减和/或降低脉冲序列的重复率。调节脉冲随后耦合到Yb或Nd：光纤放大器中。在基于Nd：或Yb：掺杂的固态激光材料的再生放大器中，放大后的放大脉冲被拉伸，然后再压缩输出。

10. 发明申请

WO2005094379A2 HIGH POWER SHORT PULSE FIBER LASER 审中-公开
标题翻译：高功率短脉冲光纤激光器
公开(公告)号：WO2005094379A2
公开(公告)日：2005-10-13
申请号：PCT/US2005/010884
申请日：2005-03-30
申请人： IMRA AMERICA, INC.
发明人： GU, Xinhua , BENDETT, Mark , CHO, Gyu, Choen
IPC分类号： H01S3/00 , H01S3/067 , H01S3/094 , H01S3/0941 , H01S3/098 , H01S3/102 , H01S3/13 , H01S3/16 , H01S3/23 , H01S3/30
CPC分类号： H01S3/1115 , H01S3/0057 , H01S3/0064 , H01S3/0078 , H01S3/06712 , H01S3/06741 , H01S3/06754 , H01S3/094003 , H01S3/094042 , H01S3/0941 , H01S3/1028 , H01S3/1305 , H01S3/1618 , H01S3/1698
摘要： A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs.
摘要翻译：脉冲激光器包括振荡器和放大器。衰减器和/或预压缩器可以设置在振荡器和放大器之间以提高性能以及可能的从激光器输出的脉冲的质量。这种预压缩可以用振荡器和放大器之间的频谱滤波器和/或分散元件来实现。脉冲激光器可以具有包括可能具有Telcordia分级质量和可靠性的模块化设备的模块化设计。从设备模块延伸的光纤尾纤可以拼接在一起形成激光系统。在一个实施例中，在大约1050nm操作的激光系统包括具有约19nm的光谱带宽的振荡器。该振荡器信号可被操纵以产生宽度低于大约90fs的脉冲。

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