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1. 发明授权

US08094691B2 Yb: and Nd: mode-locked oscillators and fiber systems incorporated in solid-state short pulse laser systems 有权
标题翻译： Yb：和Nd：锁模振荡器和光纤系统并入固态短脉冲激光系统
公开(公告)号：US08094691B2
公开(公告)日：2012-01-10
申请号：US12816105
申请日：2010-06-15
申请人： Donald Harter , Gyu Cho , Zhenlin Liu , Martin Fermann , Xinhua Gu , Salvatore Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
发明人： Donald Harter , Gyu Cho , Zhenlin Liu , Martin Fermann , Xinhua Gu , Salvatore Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
IPC分类号： H01S3/30 , H01S3/10 , H01S3/13
CPC分类号： H01S3/1106 , H01S3/005 , H01S3/0057 , H01S3/0064 , H01S3/0085 , H01S3/0092 , H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/094003 , H01S3/094019 , H01S3/094042 , H01S3/094076 , H01S3/09415 , H01S3/1086 , H01S3/109 , H01S3/11 , H01S3/1118 , H01S3/1305 , H01S3/1611 , H01S3/1618 , H01S3/1643 , H01S3/235
摘要： The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier.
摘要翻译：本发明描述了可用作用于工业设置的用于基于Nd：或Yb：的再生放大器的脉冲源的鲁棒光纤激光器系统。本发明修改了适应性，并结合了FCPA系统中的几个最新进展，用作这种新型再生放大器的输入源。

2. 发明申请

US20070109629A1 Microchip - Yb fiber hybrid optical amplifier for micro-machining and marking 有权
标题翻译： Microchip - Yb光纤混合光放大器用于微加工和标记
公开(公告)号：US20070109629A1
公开(公告)日：2007-05-17
申请号：US11643760
申请日：2006-12-22
申请人： Almantas Galvanauskas , Donald Harter , Martin Fermann , Ferenc Raksi
发明人： Almantas Galvanauskas , Donald Harter , Martin Fermann , Ferenc Raksi
IPC分类号： H01S3/00
CPC分类号： H01S3/0627 , G02B6/262 , G02F1/3525 , H01S3/0606 , H01S3/0615 , H01S3/06708 , H01S3/06754 , H01S3/094003 , H01S3/094007 , H01S3/094069 , H01S3/09415 , H01S3/115 , H01S3/1611 , H01S3/1618 , H01S3/1673 , H01S3/302
摘要： The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect spatial beam-quality can be ensured by exciting the fundamental mode in the multi-mode fibers with appropriate mode-matching optics and techniques. The loss of spatial beam-quality in the multi-mode fibers along the fiber length can be minimized by using multi-mode fibers with large cladding diameters. Near diffraction-limited coherent multi-mode amplifiers can be conveniently cladding pumped, allowing for the generation of high average power. Moreover, the polarization state in the multi-mode fiber amplifiers can be preserved by implementing multi-mode fibers with stress producing regions or elliptical fiber cores These lasers find application as a general replacement of Nd: based lasers, especially Nd:YAG lasers. Particularly utility is disclosed for applications in the marking, micro-machining and drilling areas.
摘要翻译：本发明描述了用于控制高峰值功率脉冲的多模光纤放大的空间以及光束质量的技术，以及使用这种配置来替代当前二极管泵浦的基于钕的源。通过适当的模式匹配光学和技术，可以通过激发多模光纤中的基模来确保完美的空间光束质量。通过使用具有大包层直径的多模光纤，能够使沿着光纤长度的多模光纤中的空间光束质量损失最小化。近衍射极限相干多模放大器可以方便地进行包层泵浦，从而产生高平均功率。此外，通过实施具有应力产生区域或椭圆形光纤核心的多模光纤，可以保持多模光纤放大器中的偏振状态。这些激光器可用作Nd基激光器，尤其是Nd：YAG激光器的一般替代。公开了用于标记，微加工和钻孔领域的应用。

3. 发明申请

US20070008611A1 High power fiber chirped pulse amplification system utilizing telecom-type components 有权
标题翻译：大功率光纤啁啾脉冲放大系统利用电信型元件
公开(公告)号：US20070008611A1
公开(公告)日：2007-01-11
申请号：US11434902
申请日：2006-05-17
申请人： Xinhua Gu , Yuzuru Uehara , Donald Harter
发明人： Xinhua Gu , Yuzuru Uehara , Donald Harter
IPC分类号： H01S3/00
CPC分类号： H01S3/2333 , H01S3/0057 , H01S3/0085 , H01S3/06725 , H01S3/06754 , H01S3/094003 , H01S3/0941 , H01S3/1608 , H01S3/1618 , H01S3/2316
摘要： An erbium fiber (or erbium-ytterbium) based chirped pulse amplification system is illustrated. The use of fiber amplifiers operating in the telecommunications window enables the implementation of telecommunications components and telecommunications compatible assembly procedures with superior mechanical stability.
摘要翻译：示出了基于铒光纤（或铒 - 镱）的啁啾脉冲放大系统。使用在电信窗口中工作的光纤放大器能够实现具有优良机械稳定性的电信部件和电信兼容组装程序。

4. 发明授权

US07113327B2 High power fiber chirped pulse amplification system utilizing telecom-type components 有权
标题翻译：大功率光纤啁啾脉冲放大系统利用电信型元件
公开(公告)号：US07113327B2
公开(公告)日：2006-09-26
申请号：US10606829
申请日：2003-06-27
申请人： Xinhua Gu , Yuzuru Uehara , Donald Harter
发明人： Xinhua Gu , Yuzuru Uehara , Donald Harter
IPC分类号： H01S3/00 , H01S4/00
CPC分类号： H01S3/2333 , H01S3/0057 , H01S3/0085 , H01S3/06725 , H01S3/06754 , H01S3/094003 , H01S3/0941 , H01S3/1608 , H01S3/1618 , H01S3/2316
摘要： An erbium fiber (or erbium-ytterbium) based chirped pulse amplification system is illustrated. The use of fiber amplifiers operating in the telecommunications window enables the implementation of telecommunications components and telecommunications compatible assembly procedures with superior mechanical stability.
摘要翻译：示出了基于铒光纤（或铒 - 镱）的啁啾脉冲放大系统。使用在电信窗口中工作的光纤放大器能够实现具有优良机械稳定性的电信部件和电信兼容组装程序。

5. 发明申请

US20060120418A1 Yb: and Nd: mode-locked oscillators and fiber systems incorporated in solid-state short pulse laser systems 有权
公开(公告)号：US20060120418A1
公开(公告)日：2006-06-08
申请号：US11005218
申请日：2004-12-07
申请人： Donald Harter , Gyu Cho , Zhenlin Liu , Martin Fermann , Xinhua Gu , Salvatore Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
发明人： Donald Harter , Gyu Cho , Zhenlin Liu , Martin Fermann , Xinhua Gu , Salvatore Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
IPC分类号： H01S3/13
CPC分类号： H01S3/1106 , H01S3/005 , H01S3/0057 , H01S3/0064 , H01S3/0085 , H01S3/0092 , H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/094003 , H01S3/094019 , H01S3/094042 , H01S3/094076 , H01S3/09415 , H01S3/1086 , H01S3/109 , H01S3/11 , H01S3/1118 , H01S3/1305 , H01S3/1611 , H01S3/1618 , H01S3/1643 , H01S3/235
摘要： The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier.

6. 发明申请

US20050286569A1 Resonant fabry-perot semiconductor saturable absorbers and two photon absorption power limiters 有权
标题翻译：共振半透半导体饱和吸收器和两个光子吸收功率限制器
公开(公告)号：US20050286569A1
公开(公告)日：2005-12-29
申请号：US11197852
申请日：2005-08-05
申请人： Min Jiang , Donald Harter , Gregg Sucha , Martin Fermann
发明人： Min Jiang , Donald Harter , Gregg Sucha , Martin Fermann
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/08 , H01S3/094 , H01S3/098 , H01S3/106 , H01S3/11 , H01S3/16
CPC分类号： H01S3/1118 , G02F1/3523 , H01S3/067 , H01S3/08059 , H01S3/094003 , H01S3/1063 , H01S3/1608
摘要： An intracavity resonant Fabry-Perot saturable absorber (R-FPSA) induces modelocking in a laser such as a fiber laser. An optical limiter such as a two photon absorber (TPA) can be used in conjunction with the R-FPSA, so that Q-switching is inhibited, resulting in laser output that is cw modelocked. By using both an R-FPSA and a TPA, the Q-switched modelocked behavior of a fiber laser is observed to evolve into cw modelocking.
摘要翻译：腔内共振法布里 - 珀罗可饱和吸收体（R-FPSA）在诸如光纤激光器的激光器中诱导锁模。诸如双光子吸收器（TPA）的光限制器可以与R-FPSA一起使用，使得Q开关被禁止，导致cw锁模的激光输出。通过使用R-FPSA和TPA，观察到光纤激光器的Q开关模式锁定行为演变成cw锁模。

7. 发明申请

US20050226286A1 Modular fiber-based chirped pulse amplification system 失效
标题翻译：模块化光纤啁啾脉冲放大系统
公开(公告)号：US20050226286A1
公开(公告)日：2005-10-13
申请号：US10813163
申请日：2004-03-31
申请人： Zhenlin Liu , Gyu Cho , Xinhua Gu , Otho Ulrich , Donald Harter
发明人： Zhenlin Liu , Gyu Cho , Xinhua Gu , Otho Ulrich , Donald Harter
IPC分类号： H01S3/00 , H01S3/02 , H01S3/067 , H01S3/094 , H01S3/0941 , H01S3/098 , H01S3/10 , H01S3/102 , H01S3/13 , H01S3/16 , H01S3/23
CPC分类号： H01S3/0057 , H01S3/005 , H01S3/0064 , H01S3/0078 , H01S3/0085 , H01S3/02 , H01S3/025 , H01S3/06704 , H01S3/06712 , H01S3/06754 , H01S3/094011 , H01S3/0941 , H01S3/09415 , H01S3/10007 , H01S3/1028 , H01S3/1115 , H01S3/1301 , H01S3/1305 , H01S3/1618 , H01S3/2316 , H01S5/0612 , H01S5/06804
摘要： A modular ultrafast pulse laser system is constructed of individually pre-tested components manufactured as modules. The individual modules include an oscillator, pre-amplifier and power amplifier stages, a non-linear amplifier, and a stretcher and compressor. The individual modules can typically be connected by means of simple fiber splices.
摘要翻译：模块化超快脉冲激光系统由单独的预先测试的部件构成，作为模块制造。各个模块包括振荡器，前置放大器和功率放大器级，非线性放大器以及担架和压缩器。各个模块通常可以通过简单的光纤接头连接。

8. 发明申请

US20050185260A1 Microchip - Yb fiber hybrid optical amplifier for micro-machining and marking 审中-公开
公开(公告)号：US20050185260A1
公开(公告)日：2005-08-25
申请号：US10958593
申请日：2004-10-06
申请人： Almantas Galvanauskas , Donald Harter , Martin Fermann , Ferenc Raksi
发明人： Almantas Galvanauskas , Donald Harter , Martin Fermann , Ferenc Raksi
IPC分类号： B23K26/36 , B23K26/40 , G02F1/35 , G02F1/39 , H01S3/00 , H01S3/06 , H01S3/115
CPC分类号： G02F1/39 , B23K26/0622 , B23K26/0624 , G02F2001/3548 , G02F2001/392 , H01S3/0057 , H01S3/0604 , H01S3/06704 , H01S3/06725 , H01S3/06741 , H01S3/06758 , H01S3/08045 , H01S3/094007 , H01S3/115 , H01S3/2325 , H01S2301/03
摘要： The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect spatial beam-quality can be ensured by exciting the fundamental mode in the multi-mode fibers with appropriate mode-matching optics and techniques. The loss of spatial beam-quality in the multi-mode fibers along the fiber length can be minimized by using multi-mode fibers with large cladding diameters. Near diffraction-limited coherent multi-mode amplifiers can be conveniently cladding pumped, allowing for the generation of high average power. Moreover, the polarization state in the multi-mode fiber amplifiers can be preserved by implementing multi-mode fibers with stress producing regions or elliptical fiber cores These lasers find application as a general replacement of Nd: based lasers, especially Nd:YAG lasers. Particularly utility is disclosed for applications in the marking, micro-machining and drilling areas.

9. 再颁专利

USRE45177E1 Quasi-phase-matched parametric chirped pulse amplification systems 有权
标题翻译：准相位匹配参数啁啾脉冲放大系统
公开(公告)号：USRE45177E1
公开(公告)日：2014-10-07
申请号：US10396815
申请日：2003-03-26
申请人： Almantas Galvanauskas , Donald Harter , Gregg Sucha
发明人： Almantas Galvanauskas , Donald Harter , Gregg Sucha
IPC分类号： H01S3/10 , H01S3/091
CPC分类号： G02F1/39 , A61B18/22 , A61C1/0046 , B23K26/0624 , G02F2001/3548 , G02F2001/392 , H01S3/0057 , H01S3/0604 , H01S3/115
摘要： Use of quasi-phase-matched (QPM) materials for parametric chirped pulse amplification (PCPA) substantially reduces the required pump peak power and pump brightness, allowing exploitation of spatially-multimode and long duration pump pulses. It also removes restrictions on pump wavelength and amplification bandwidth. This allows substantial simplification in pump laser design for a high-energy PCPA system and, consequently, the construction of compact diode-pumped sources of high-energy ultrashort optical pulses. Also, this allows elimination of gain-narrowing and phase-distortion limitations on minimum pulse duration, which typically arise in a chirped pulse amplification system. One example of a compact source of high-energy ultrashort pulses is a multimode-core fiber based PCPA system. Limitations on pulse energy due to the limited core size for single-mode fibers are circumvented by using large multimode core. Limitations on pulse duration and beam quality due to multimode core are circumvented by using a PCPA scheme. Additionally, the large core of the multimode fiber facilitates cladding-pumping by inexpensive and high-power multiple-mode laser diodes.
摘要翻译：使用准相位匹配（QPM）材料进行参数啁啾脉冲放大（PCPA），大大降低了所需的泵浦峰值功率和泵浦亮度，从而允许利用空间多模和长时间泵浦脉冲。它还消除了对泵浦波长和放大带宽的限制。这大大简化了用于高能量PCPA系统的泵浦激光器设计，并因此实现了高能量超短脉冲光源的紧凑型二极管泵浦源的构建。此外，这允许消除通常在啁啾脉冲放大系统中出现的最小脉冲持续时间上的增益变窄和相位失真的限制。紧凑型高能超短脉冲源的一个例子是基于多模核心光纤的PCPA系统。通过使用大型多模核，可以避免由于单模光纤尺寸有限引起的脉冲能量限制。通过使用PCPA方案可以避免由多模核引起的脉冲持续时间和光束质量的限制。此外，多模光纤的大芯片有助于通过廉价和大功率多模激光二极管进行包层泵浦。

10. 发明授权

US07907334B2 High power fiber chirped pulse amplification system utilizing telecom-type components 有权
标题翻译：大功率光纤啁啾脉冲放大系统利用电信型元件
公开(公告)号：US07907334B2
公开(公告)日：2011-03-15
申请号：US12502255
申请日：2009-07-14
申请人： Xinhua Gu , Yuzuru Uehara , Donald Harter
发明人： Xinhua Gu , Yuzuru Uehara , Donald Harter
IPC分类号： H04B10/17 , H01S3/098 , H01S3/10
CPC分类号： H01S3/2333 , H01S3/0057 , H01S3/0085 , H01S3/06725 , H01S3/06754 , H01S3/094003 , H01S3/0941 , H01S3/1608 , H01S3/1618 , H01S3/2316
摘要： A chirped pulse amplifier (CPA) system having a mode-locked laser and a high-speed pulse selector, wherein the pulse selector modulates output pulses based upon an applied modulation voltage. A pulse selector may be an integrated electro-optic modulator, for example a LiNbO3 modulator, or an electro-absorption modulator. Difficulties related to free-space alignment and operational stability of some prior designs are reduced or eliminated. Fiber coupling generally simplifies beam delivery and alignment. Some embodiments include an erbium fiber (or erbium-ytterbium) based CPA system operating at a wavelength of approximately 1550 nanometers. Similar performance can be obtained at other wavelengths, for example a 1.06 micrometer Yb-doped fiber system. Moreover, high amplification and peak intensity at the output may be achieved while avoiding non-linear effects in the pulse selector, thereby providing for high intensity picosecond or femtosecond operation.
摘要翻译：具有锁模激光器和高速脉冲选择器的啁啾脉冲放大器（CPA）系统，其中所述脉冲选择器基于所施加的调制电压来调制输出脉冲。脉冲选择器可以是集成电光调制器，例如LiNbO 3调制器或电吸收调制器。减少或消除了一些现有设计中与自由空间对准和操作稳定性相关的困难。光纤耦合通常简化光束传输和对准。一些实施例包括以约1550纳米的波长工作的基于铒光纤（或铒 - 镱）的CPA系统。在其他波长下可以获得类似的性能，例如1.06微米的Yb掺杂光纤系统。此外，可以在避免脉冲选择器中的非线性效应的同时实现输出端的高放大和峰值强度，从而提供高强度皮秒或飞秒操作。

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