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1. 发明申请

US20050163426A1 Modular, high energy, widely-tunable ultrafast fiber source 有权
公开(公告)号：US20050163426A1
公开(公告)日：2005-07-28
申请号：US11074765
申请日：2005-03-09
申请人： Martin Fermann , Almantas Galvanauskas , Donald Harter
发明人： Martin Fermann , Almantas Galvanauskas , Donald Harter
IPC分类号： G02B6/02 , G02F1/35 , G02F1/37 , H01S3/00 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/109 , H01S3/16 , H01S3/23 , H01S3/30 , G02B6/34
CPC分类号： H01S3/1115 , H01S3/0057 , H01S3/0675 , H01S3/06754 , H01S3/094019 , H01S3/094042 , H01S3/109 , H01S3/1112 , H01S3/1616 , H01S3/1618 , H01S3/302
摘要： A modular, compact and widely tunable laser system for the efficient generation of high peak and high average power ultrashort pulses. Modularity is ensured by the implementation of interchangeable amplifier components. System compactness is ensured by employing efficient fiber amplifiers, directly or indirectly pumped by diode lasers. Peak power handling capability of the fiber amplifiers is expanded by using optimized pulse shapes, as well as dispersively broadened pulses. Dispersive broadening is introduced by dispersive pulse stretching in the presence of self-phase modulation and gain, resulting in the formation of high-power parabolic pulses. In addition, dispersive broadening is also introduced by simple fiber delay lines or chirped fiber gratings, resulting in a further increase of the energy handling ability of the fiber amplifiers. The phase of the pulses in the dispersive delay line is controlled to quartic order by the use of fibers with varying amounts of waveguide dispersion or by controlling the chirp of the fiber gratings. After amplification, the dispersively stretched pulses can be re-compressed to nearly their bandwidth limit by the implementation of another set of dispersive delay lines. To ensure a wide tunability of the whole system, Raman-shifting of the compact sources of ultrashort pulses in conjunction with frequency-conversion in nonlinear optical crystals can be implemented, or an Anti-Stokes fiber in conjunction with fiber amplifiers and Raman-shifters are used. A particularly compact implementation of the whole system uses fiber oscillators in conjunction with fiber amplifiers. Additionally, long, distributed, positive dispersion optical amplifiers are used to improve transmission characteristics of an optical communication system. Finally, an optical communication system utilizes a Raman amplifier fiber pumped by a train of Raman-shifted, wavelength-tunable pump pulses, to thereby amplify an optical signal which counterpropogates within the Raman amplifier fiber with respect to the pump pulses.

2. 发明申请

US20060132904A1 Microchip-Yb fiber hybrid optical amplifier for micro-machining and marking 有权
标题翻译：用于微加工和标记的Microchip-Yb光纤混合光放大器
公开(公告)号：US20060132904A1
公开(公告)日：2006-06-22
申请号：US11339679
申请日：2006-01-26
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

US20070103765A1 Modular, high energy, widely-tunable ultrafast fiber source 有权
公开(公告)号：US20070103765A1
公开(公告)日：2007-05-10
申请号：US11643765
申请日：2006-12-22
申请人： Martin Fermann , Almantas Galvanauskas , Donald Harter
发明人： Martin Fermann , Almantas Galvanauskas , Donald Harter
IPC分类号： H01S3/00
CPC分类号： H01S3/1115 , H01S3/0057 , H01S3/0675 , H01S3/06754 , H01S3/094019 , H01S3/094042 , H01S3/109 , H01S3/1112 , H01S3/1616 , H01S3/1618 , H01S3/302
摘要： A modular, compact and widely tunable laser system for the efficient generation of high peak and high average power ultrashort pulses. Modularity is ensured by the implementation of interchangeable amplifier components. System compactness is ensured by employing efficient fiber amplifiers, directly or indirectly pumped by diode lasers. Peak power handling capability of the fiber amplifiers is expanded by using optimized pulse shapes, as well as dispersively broadened pulses. Dispersive broadening is introduced by dispersive pulse stretching in the presence of self-phase modulation and gain, resulting in the formation of high-power parabolic pulses. In addition, dispersive broadening is also introduced by simple fiber delay lines or chirped fiber gratings, resulting in a further increase of the energy handling ability of the fiber amplifiers. The phase of the pulses in the dispersive delay line is controlled to quartic order by the use of fibers with varying amounts of waveguide dispersion or by controlling the chirp of the fiber gratings. After amplification, the dispersively stretched pulses can be re-compressed to nearly their bandwidth limit by the implementation of another set of dispersive delay lines. To ensure a wide tunability of the whole system, Raman-shifting of the compact sources of ultrashort pulses in conjunction with frequency-conversion in nonlinear optical crystals can be implemented, or an Anti-Stokes fiber in conjunction with fiber amplifiers and Raman-shifters are used. A particularly compact implementation of the whole system uses fiber oscillators in conjunction with fiber amplifiers. Additionally, long, distributed, positive dispersion optical amplifiers are used to improve transmission characteristics of an optical communication system. Finally, an optical communication system utilizes a Raman amplifier fiber pumped by a train of Raman-shifted, wavelength-tunable pump pulses, to thereby amplify an optical signal which counterpropogates within the Raman amplifier fiber with respect to the pump pulses.

4. 发明申请

US20060171018A1 Microchip-Yb fiber hybrid optical amplifier for micro-machining and marking 失效
公开(公告)号：US20060171018A1
公开(公告)日：2006-08-03
申请号：US11372185
申请日：2006-03-10
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： H01S3/115 , H01S3/005 , H01S3/0604 , H01S3/0606 , H01S3/06754 , H01S3/08031 , H01S3/094007 , H01S3/09415 , H01S3/1611 , H01S3/1618 , H01S3/1673
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.

5. 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。

6. 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.

7. 发明申请

US20050243409A1 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：US20050243409A1
公开(公告)日：2005-11-03
申请号：US11141704
申请日：2005-06-01
申请人： Donald Harter , Martin Fermann
发明人： Donald Harter , Martin Fermann
IPC分类号： H01S3/06 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/11 , H01S3/16 , H01S3/30
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。

8. 发明申请

US20050105865A1 All-fiber chirped pulse amplification systems 有权
标题翻译：全光纤啁啾脉冲放大系统
公开(公告)号：US20050105865A1
公开(公告)日：2005-05-19
申请号：US10992762
申请日：2004-11-22
申请人： Martin Fermann , Gennady Imeshev , Gyu Cho , Zhenlin Liu , Donald Harter
发明人： Martin Fermann , Gennady Imeshev , Gyu Cho , Zhenlin Liu , Donald Harter
IPC分类号： G02B6/26 , H01S3/00 , H01S3/067
CPC分类号： H01S3/0057 , H01S3/0064 , H01S3/0078 , H01S3/06712 , H01S3/06725 , H01S3/06741 , H01S3/06754 , H01S3/06758 , H01S3/094007 , H01S3/1086 , H01S3/1301 , H01S3/1608 , H01S3/1618 , H01S3/2308 , H01S3/2316 , H01S3/302
摘要： By compensating polarization mode-dispersion as well chromatic dispersion in photonic crystal fiber pulse compressors, high pulse energies can be obtained from all-fiber chirped pulse amplification systems. By inducing third-order dispersion in fiber amplifiers via self-phase modulation, the third-order chromatic dispersion from bulk grating pulse compressors can be compensated and the pulse quality of hybrid fiber/bulk chirped pulse amplification systems can be improved. Finally, by amplifying positively chirped pulses in negative dispersion fiber amplifiers, low noise wavelength tunable seed source via anti-Stokes frequency shifting can be obtained.
摘要翻译：通过补偿光子晶体光纤脉冲压缩器中的偏振模色散以及色散，可以从全光纤啁啾脉冲放大系统获得高脉冲能量。通过自相位调制在光纤放大器中产生三阶色散，可以补偿来自大容量光栅脉冲压缩器的三阶色散，可以提高混合光纤/体积啁啾脉冲放大系统的脉冲质量。最后，通过在负色散光纤放大器中正向啁啾脉冲放大，可以获得经过反斯托克斯频移的低噪声波长可调种子源。

9. 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。

10. 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.

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